Pension Plans | Other plans | ||||||||||
December 31, 2017 | December 31, 2016 | December 31, 2017 | December 31, 2016 | ||||||||
$ | $ | $ | $ | ||||||||
Defined benefit obligations | |||||||||||
Balance, beginning of year | 79,821 | 76,172 | 2,867 | 3,365 | |||||||
Additions through business acquisitions | — | 57 | — | — | |||||||
Current service cost | 1,076 | 1,176 | 46 | 22 | |||||||
Interest cost | 3,096 | 3,139 | 111 | 143 | |||||||
Benefits paid | (3,406 | ) | (3,260 | ) | (246 | ) | (14 | ) | |||
Actuarial gains from demographic assumptions | (1,052 | ) | (1,131 | ) | (565 | ) | (21 | ) | |||
Actuarial losses from financial assumptions | 3,989 | 1,901 | 133 | 141 | |||||||
Experience losses (gains) | 2,077 | 1,383 | 707 | (835 | ) | ||||||
Foreign exchange rate adjustment | 861 | 384 | 99 | 66 | |||||||
Balance, end of year | 86,462 | 79,821 | 3,152 | 2,867 | |||||||
Fair value of plan assets | |||||||||||
Balance, beginning of year | 51,856 | 50,245 | — | — | |||||||
Interest income | 2,025 | 1,965 | — | — | |||||||
Return on plan assets (excluding amounts included in net interest expense) | 5,591 | 1,705 | — | — | |||||||
Contributions by the employer | 3,956 | 1,357 | — | — | |||||||
Benefits paid | (3,406 | ) | (3,260 | ) | — | — | |||||
Administration expenses | (507 | ) | (487 | ) | — | — | |||||
Foreign exchange rate adjustment | 801 | 331 | — | — | |||||||
Balance, end of year | 60,316 | 51,856 | — | — | |||||||
Funded status – deficit | 26,146 | 27,965 | 3,152 | 2,867 |
December 31, 2017 | ||||||||
US | Canada | Total | ||||||
$ | $ | $ | ||||||
Defined benefit obligations | 72,643 | 16,971 | 89,614 | |||||
Fair value of plan assets | (46,835 | ) | (13,481 | ) | (60,316 | ) | ||
Deficit in plans | 25,808 | 3,490 | 29,298 | |||||
December 31, 2016 | ||||||||
US | Canada | Total | ||||||
$ | $ | $ | ||||||
Defined benefit obligations | 68,584 | 14,104 | 82,688 | |||||
Fair value of plan assets | (40,521 | ) | (11,335 | ) | (51,856 | ) | ||
Deficit in plans | 28,063 | 2,769 | 30,832 |