Retirement Benefits [Abstract] | Period [Axis] |
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2016-01-01 - 2016-12-31 |
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Retirement Benefits [Abstract] | |
Net Periodic Benefit (Credit) Cost |
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U.S. Pension Plans
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Non-U.S. Plans
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2016
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2015
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2014
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2016
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2015
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2014
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(Dollars in thousands)
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Service cost
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$
|
16
|
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$
|
17
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$
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16
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$
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1,372
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$
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1,478
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$
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1,767
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Interest cost
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15,552
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18,718
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19,746
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3,319
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3,560
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5,105
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Expected return on plan assets
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(19,735)
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(29,168)
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(28,139)
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(1,712)
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(2,623)
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(3,151)
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Amortization of prior service cost
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11
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12
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12
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37
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259
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61
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Mark-to-market actuarial net losses
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9,127
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18,807
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71,583
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11,180
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5,085
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17,494
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Curtailment and settlement effects (gains) losses
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—
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(12,640)
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—
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688
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35
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(123)
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Special termination benefits
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—
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—
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—
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330
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35
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40
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Net periodic benefit cost (credit)
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$
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4,971
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$
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(4,254)
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$
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63,218
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$
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15,214
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$
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7,829
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$
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21,193
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Weighted-average assumptions:
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Discount rate
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4.70
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%
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4.25
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%
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5.25
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%
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3.12
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%
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2.72
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%
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4.12
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%
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Rate of compensation increase
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N/A
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N/A
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N/A
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3.16
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%
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3.28
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%
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2.88
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%
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Expected return on plan assets
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8.20
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%
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8.20
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%
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8.20
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%
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3.41
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%
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3.50
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%
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4.44
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%
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Defined Benefit Pension Plans |
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U.S. Pension Plans
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Non-U.S. Pension Plans
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2016
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2015
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2016
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2015
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(Dollars in thousands)
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Change in benefit obligation
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Benefit obligation at beginning of year
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$
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346,951
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$
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454,030
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$
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123,764
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$
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146,706
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Service cost
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16
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17
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1,372
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1,478
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Interest cost
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15,552
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18,718
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3,319
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3,560
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Curtailments
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—
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—
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—
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—
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Amendments
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—
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—
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—
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189
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Settlements
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(144)
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(71,290)
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(34,528)
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(579)
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Special termination benefits
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—
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—
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330
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35
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Plan participants' contributions
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—
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—
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54
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20
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Benefits paid
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(22,918)
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(23,144)
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(3,195)
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(3,179)
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Actuarial loss (gain)
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5,745
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(31,380)
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20,490
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(11,142)
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Exchange rate effect
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—
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—
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(8,116)
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(13,324)
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Benefit obligation at end of year
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$
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345,202
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$
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346,951
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$
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103,490
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$
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123,764
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Accumulated benefit obligation at end of year
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$
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345,202
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$
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346,951
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$
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93,401
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$
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118,680
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Change in plan assets:
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Fair value of plan assets at beginning of year
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$
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278,735
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$
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381,147
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$
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63,649
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$
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82,345
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Actual return on plan assets
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16,354
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(8,379)
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10,977
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(13,638)
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Employer contributions
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|
522
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401
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3,060
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4,979
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Plan participants' contributions
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—
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—
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54
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20
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Benefits paid
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(22,918)
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(23,144)
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(3,195)
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(3,179)
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Effect of settlements
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(144)
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(71,290)
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(34,746)
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(579)
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Exchange rate effect
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—
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—
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(6,116)
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(6,299)
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Fair value of plan assets at end of year
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$
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272,549
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$
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278,735
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$
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33,683
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$
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63,649
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Amounts recognized in the balance sheet:
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Other non-current assets
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$
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—
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$
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—
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$
|
484
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$
|
841
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Accrued expenses and other current liabilities
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(579)
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(729)
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(2,070)
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(1,834)
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Postretirement and pension liabilities
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(72,074)
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(67,487)
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(68,221)
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(59,122)
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Funded status
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$
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(72,653)
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$
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(68,216)
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$
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(69,807)
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$
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(60,115)
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During 2016, the Company settled a pension obligation in Great Britain for an amount of $32.2 million, which is included in settlements for the Non-U.S. pension.
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U.S. Pension Plans
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Non-U.S. Pension Plans
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2016
|
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2015
|
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2016
|
|
2015
|
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|
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(Dollars in thousands)
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Weighted-average assumptions as of December 31:
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|
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|
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Discount rate
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4.40
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%
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4.70
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%
|
|
2.24
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%
|
|
3.12
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%
|
Rate of compensation increase
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N/A
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N/A
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3.14
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%
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3.16
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%
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Pension plans with benefit obligations in excess of plan assets:
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Benefit obligations
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|
$
|
345,202
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$
|
346,951
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$
|
73,903
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|
$
|
66,291
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|
Plan assets
|
|
|
272,549
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|
278,735
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|
|
3,612
|
|
|
5,336
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|
Pension plans with accumulated benefit obligations in excess of plan assets:
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Projected benefit obligations
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|
$
|
345,202
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$
|
346,951
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$
|
73,393
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|
$
|
65,777
|
|
Accumulated benefit obligations
|
|
|
345,202
|
|
|
346,951
|
|
|
63,538
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|
|
60,888
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|
Plan assets
|
|
|
272,549
|
|
|
278,735
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|
|
3,179
|
|
|
4,881
|
|
Activity and balances in Accumulated other comprehensive loss related to defined benefit pension plans are summarized below:
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U.S. Pension Plans
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|
Non-U.S. Pension Plans
|
|
|
2016
|
|
2015
|
|
2016
|
|
2015
|
|
|
(Dollars in thousands)
|
Prior service (cost):
|
|
|
|
|
|
|
|
|
|
|
|
|
Balance at beginning of year
|
|
$
|
(18)
|
|
$
|
(30)
|
|
$
|
(425)
|
|
$
|
(636)
|
Amounts recognized as net periodic benefit costs
|
|
|
11
|
|
|
12
|
|
|
37
|
|
|
259
|
Exchange rate effects
|
|
|
—
|
|
|
—
|
|
|
123
|
|
|
(48)
|
Balance at end of year
|
|
$
|
(7)
|
|
$
|
(18)
|
|
$
|
(265)
|
|
$
|
(425)
|
Estimated amounts to be amortized in 2017
|
|
$
|
(7)
|
|
|
|
|
$
|
(37)
|
|
|
|
|
Fair Value of Pension Plan Assets |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
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|
Level 1
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Level 2
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|
Level 3
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|
Total
|
|
|
(Dollars in thousands)
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U.S. plans:
|
|
|
|
|
|
|
|
|
|
|
|
|
Fixed income:
|
|
|
|
|
|
|
|
|
|
|
|
|
Cash and cash equivalents
|
|
$
|
3
|
|
$
|
—
|
|
$
|
—
|
|
$
|
3
|
Guaranteed deposits
|
|
|
—
|
|
|
1,817
|
|
|
—
|
|
|
1,817
|
Mutual funds
|
|
|
85,580
|
|
|
—
|
|
|
—
|
|
|
85,580
|
Commingled funds
|
|
|
—
|
|
|
777
|
|
|
371
|
|
|
1,148
|
Equities:
|
|
|
|
|
|
|
|
|
|
|
|
|
U.S. common stocks
|
|
|
4,057
|
|
|
—
|
|
|
—
|
|
|
4,057
|
Mutual funds
|
|
|
156,675
|
|
|
—
|
|
|
—
|
|
|
156,675
|
Commingled funds
|
|
|
—
|
|
|
1,096
|
|
|
—
|
|
|
1,096
|
Real estate
|
|
|
—
|
|
|
—
|
|
|
22,173
|
|
|
22,173
|
Total
|
|
$
|
246,315
|
|
$
|
3,690
|
|
$
|
22,544
|
|
$
|
272,549
|
Non-U.S. plans
|
|
|
|
|
|
|
|
|
|
|
|
|
Fixed income:
|
|
|
|
|
|
|
|
|
|
|
|
|
Guaranteed deposits
|
|
$
|
97
|
|
$
|
726
|
|
$
|
26,332
|
|
$
|
27,155
|
Mutual funds
|
|
|
365
|
|
|
—
|
|
|
—
|
|
|
365
|
Other
|
|
|
3,679
|
|
|
2,153
|
|
|
—
|
|
|
5,832
|
Equities:
|
|
|
|
|
|
|
|
|
|
|
|
|
Mutual funds
|
|
|
200
|
|
|
—
|
|
|
—
|
|
|
200
|
Real estate
|
|
|
—
|
|
|
—
|
|
|
84
|
|
|
84
|
Other assets
|
|
|
47
|
|
|
—
|
|
|
—
|
|
|
47
|
Total
|
|
$
|
4,388
|
|
$
|
2,879
|
|
$
|
26,416
|
|
$
|
33,683
|
The fair values of our pension plan assets at December 31, 2015, by asset category are as follows:
|
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|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Level 1
|
|
Level 2
|
|
Level 3
|
|
Total
|
|
|
(Dollars in thousands)
|
U.S. plans:
|
|
|
|
|
|
|
|
|
|
|
|
|
Fixed income:
|
|
|
|
|
|
|
|
|
|
|
|
|
Cash and cash equivalents
|
|
$
|
44
|
|
$
|
—
|
|
$
|
—
|
|
$
|
44
|
Guaranteed deposits
|
|
|
—
|
|
|
1,956
|
|
|
—
|
|
|
1,956
|
Mutual funds
|
|
|
88,672
|
|
|
—
|
|
|
—
|
|
|
88,672
|
Commingled funds
|
|
|
—
|
|
|
879
|
|
|
366
|
|
|
1,245
|
Equities:
|
|
|
|
|
|
|
|
|
|
|
|
|
U.S. common stocks
|
|
|
3,148
|
|
|
—
|
|
|
—
|
|
|
3,148
|
Mutual funds
|
|
|
162,332
|
|
|
—
|
|
|
—
|
|
|
162,332
|
Commingled funds
|
|
|
—
|
|
|
1,264
|
|
|
—
|
|
|
1,264
|
Real estate
|
|
|
—
|
|
|
—
|
|
|
20,074
|
|
|
20,074
|
Total
|
|
$
|
254,196
|
|
$
|
4,099
|
|
$
|
20,440
|
|
$
|
278,735
|
Non-U.S. plans
|
|
|
|
|
|
|
|
|
|
|
|
|
Fixed income:
|
|
|
|
|
|
|
|
|
|
|
|
|
Cash and cash equivalents
|
|
$
|
299
|
|
$
|
—
|
|
$
|
—
|
|
$
|
299
|
Guaranteed deposits
|
|
|
142
|
|
|
2,148
|
|
|
54,006
|
|
|
56,296
|
Mutual funds
|
|
|
171
|
|
|
—
|
|
|
—
|
|
|
171
|
Other
|
|
|
4,188
|
|
|
2,267
|
|
|
—
|
|
|
6,455
|
Equities:
|
|
|
|
|
|
|
|
|
|
|
|
|
Mutual funds
|
|
|
319
|
|
|
—
|
|
|
—
|
|
|
319
|
Real estate
|
|
|
—
|
|
|
—
|
|
|
59
|
|
|
59
|
Other assets
|
|
|
50
|
|
|
—
|
|
|
—
|
|
|
50
|
Total
|
|
$
|
5,169
|
|
$
|
4,415
|
|
$
|
54,065
|
|
$
|
63,649
|
|
Schedule of Rollforward of Level 3 Assets |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Guaranteed
|
|
|
|
|
Commingled
|
|
|
|
|
|
|
|
|
deposits
|
|
Real estate
|
|
funds
|
|
Other assets
|
|
Total
|
|
|
(Dollars in thousands)
|
Balance at December 31, 2014
|
|
$
|
28,929
|
|
$
|
17,648
|
|
$
|
489
|
|
$
|
2
|
|
$
|
47,068
|
Purchases
|
|
|
31,157
|
|
|
—
|
|
|
—
|
|
|
—
|
|
|
31,157
|
Sales
|
|
|
(282)
|
|
|
—
|
|
|
—
|
|
|
—
|
|
|
(282)
|
(Losses) gains included in earnings
|
|
|
(2,342)
|
|
|
2,485
|
|
|
(123)
|
|
|
(2)
|
|
|
18
|
Exchange rate effect
|
|
|
(3,456)
|
|
|
—
|
|
|
—
|
|
|
—
|
|
|
(3,456)
|
Balance at December 31, 2015
|
|
$
|
54,006
|
|
$
|
20,133
|
|
$
|
366
|
|
$
|
—
|
|
$
|
74,505
|
Sales
|
|
|
(33,084)
|
|
|
—
|
|
|
—
|
|
|
—
|
|
|
(33,084)
|
Gains included in earnings
|
|
|
10,867
|
|
|
2,124
|
|
|
5
|
|
|
—
|
|
|
12,996
|
Exchange rate effect
|
|
|
(5,457)
|
|
|
—
|
|
|
—
|
|
|
—
|
|
|
(5,457)
|
Balance at December 31, 2016
|
|
$
|
26,332
|
|
$
|
22,257
|
|
$
|
371
|
|
$
|
—
|
|
$
|
48,960
|
|
Future Pension Benefit Payments |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
U.S. Plans
|
|
Non-U.S. Plans
|
|
|
|
(Dollars in thousands)
|
2017
|
|
$
|
23,590
|
|
$
|
4,256
|
|
2018
|
|
|
23,442
|
|
|
3,534
|
|
2019
|
|
|
23,469
|
|
|
4,164
|
|
2020
|
|
|
23,470
|
|
|
3,767
|
|
2021
|
|
|
23,529
|
|
|
3,734
|
|
2022-2026
|
|
|
116,026
|
|
|
21,698
|
|
|
Postretirement Health Care and Life Insurance Benefit Plans |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
2016
|
2015
|
2014
|
|
|
(Dollars in thousands)
|
Net periodic benefit cost:
|
|
|
|
|
|
|
|
|
|
|
Interest expense
|
|
$
|
944
|
|
$
|
970
|
|
$
|
1,205
|
|
Amortization of prior service credit
|
|
|
—
|
|
|
—
|
|
|
(105)
|
|
Mark-to-market actuarial net (gain) loss
|
|
|
(164)
|
|
|
(3,051)
|
|
|
499
|
|
Curtailment (gain) recognized
|
|
|
—
|
|
|
—
|
|
|
(930)
|
|
Total net periodic benefit cost (credit)
|
|
$
|
780
|
|
$
|
(2,081)
|
|
$
|
669
|
|
Weighted-average assumptions:
|
|
|
|
|
|
|
|
|
|
|
Discount rate
|
|
|
4.50
|
%
|
|
3.95
|
%
|
|
4.90
|
%
|
Current trend rate for health care costs
|
|
|
6.60
|
%
|
|
7.10
|
%
|
|
7.30
|
%
|
Ultimate trend rate for health care costs
|
|
|
4.50
|
%
|
|
4.50
|
%
|
|
4.50
|
%
|
Year that ultimate trend rate is reached
|
|
|
2036
|
|
|
2028
|
|
|
2028
|
|
A one-percentage-point change in the assumed health care cost trend rates would have the following effect:
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
1-Percentage-
|
|
1-Percentage-
|
|
|
Point
|
|
Point
|
|
|
Increase
|
|
Decrease
|
|
|
(Dollars in thousands)
|
Effect on total of service and interest costs components
|
|
$
|
60
|
|
$
|
(52)
|
|
|
Effect on postretirement benefit obligation
|
|
|
1,262
|
|
|
(1,106)
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
2016
|
2015
|
|
|
(Dollars in thousands)
|
Change in benefit obligation:
|
|
|
|
|
|
|
|
Benefit obligation at beginning of year
|
|
$
|
22,030
|
|
$
|
25,717
|
|
Interest cost
|
|
|
944
|
|
|
970
|
|
Curtailments
|
|
|
—
|
|
|
—
|
|
Benefits paid
|
|
|
(1,754)
|
|
|
(1,606)
|
|
Actuarial (loss)
|
|
|
(164)
|
|
|
(3,051)
|
|
Benefit obligation at end of year
|
|
$
|
21,056
|
|
$
|
22,030
|
|
Change in plan assets:
|
|
|
|
|
|
|
|
Fair value of plan assets at beginning of year
|
|
$
|
—
|
|
$
|
—
|
|
Employer contributions
|
|
|
1,754
|
|
|
1,606
|
|
Benefits paid
|
|
|
(1,754)
|
|
|
(1,606)
|
|
Fair value of plan assets at end of year
|
|
$
|
—
|
|
$
|
—
|
|
Amounts recognized in the balance sheet:
|
|
|
|
|
|
|
|
Accrued expenses and other current liabilities
|
|
$
|
(2,208)
|
|
$
|
(2,345)
|
|
Postretirement and pension liabilities
|
|
|
(18,848)
|
|
|
(19,685)
|
|
Funded status
|
|
$
|
(21,056)
|
|
$
|
(22,030)
|
|
Weighted-average assumptions as of December 31:
|
|
|
|
|
|
|
|
Discount rate
|
|
|
4.20
|
%
|
|
4.50
|
%
|
Current trend rate for health care costs
|
|
|
6.50
|
%
|
|
6.60
|
%
|
Ultimate trend rate for health care costs
|
|
|
4.50
|
%
|
|
4.50
|
%
|
Year that ultimate rend rate is reached
|
|
|
2036
|
|
|
2036
|
|
|
Future Postretirement Health Care and Life Insurance Benefit Payments |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Before Medicare
|
After Medicare
|
|
|
Subsidy
|
|
Subsidy
|
|
|
(Dollars in thousands)
|
2017
|
|
$
|
2,208
|
|
$
|
1,970
|
|
2018
|
|
|
2,139
|
|
|
1,911
|
|
2019
|
|
|
2,069
|
|
|
1,851
|
|
2020
|
|
|
1,987
|
|
|
1,779
|
|
2021
|
|
|
1,907
|
|
|
1,710
|
|
2022-2026
|
|
|
8,147
|
|
|
7,330
|
|
|