Slicers (applies to each fact value in each table cell)

Reporting Entity [Axis]

0001666138 (http://www.sec.gov/CIK)

Compensation and Retirement Disclosure [Abstract]	Period [Axis]
	2015-09-26 - 2016-09-30
Compensation and Retirement Disclosure [Abstract]
Schedule of Net Periodic Benefit Cost	The net periodic benefit cost for the periods presented was as follows:    Fiscal Year Ended (in thousands) September 30, 2016   September 25, 2015   September 26, 2014 Service cost $ 1,894   $ 2,509   $ 2,783 Interest cost 4,143   4,784   4,850 Expected return on plan assets (6,318 )   (6,803 )   (6,265 ) Amortization of actuarial loss 722   88   — Net periodic benefit cost $ 441   $ 578   $ 1,368 Weighted-average assumptions used to determine net periodic pension cost during the period:           Discount rate 4.2 % 4.2 %   4.6 % Expected return on plan assets 7.0 %   7.0 %   7.0 % Rate of compensation increase N/a N/a   N/a
Schedule of Amounts Amortized from Accumulated Other Comprehensive Loss	The amounts amortized from accumulated other comprehensive loss is as follows:   Fiscal Year Ended (in thousands) September 30, 2016   September 25, 2015   September 26, 2014 Amortization of unrecognized actuarial loss $ 722   $ 88   $ —
Schedule of Change in Benefit Obligations and Plan Assets	The change in the benefit obligations, plan assets and the amounts recognized on the consolidated balance sheets was as follows: Change in benefit obligations:     Benefit obligations as of September 26, 2014   $ 116,648 Service cost   2,509 Interest cost   4,784 Actuarial loss   1,542 Benefits and administrative expenses paid   (4,283 ) Benefit obligations as of September 25, 2015   121,200 Service cost   1,894 Interest cost   4,143 Actuarial loss   10,542 Benefits and administrative expenses paid   (4,627 ) Benefit obligations as of September 30, 2016   $ 133,152       Change in plan assets:     Fair value of plan assets as of September 26, 2014   $ 99,820 Actual return on plan assets   (3,566 ) Employer contributions   1,103 Benefits and administrative expenses paid   (4,283 ) Fair value of plan assets as of September 25, 2015   93,074 Actual return on plan assets   9,122 Employer contributions   411 Benefits and administrative expenses paid   (4,627 ) Fair value of plan assets as of September 30, 2016   $ 97,980 Funded status as of September 30, 2016   $ (35,172 )
Schedule of Amounts Recognized in Balance Sheet	September 30, 2016   September 25, 2015 Amounts recognized in the consolidated balance sheets consist of:         Pension liabilities   $ (35,172 )   $ (28,126 ) Net amount recognized   $ (35,172 )   $ (28,126 )           Amounts recognized in accumulated other comprehensive loss (before income taxes) consist of:         Net actuarial loss   $ (28,205 )   $ (21,189 ) Total loss recognized   $ (28,205 )   $ (21,189 )           Weighted-average assumptions used to determine pension benefit obligations at year end:         Discount rate   3.5 %   4.2 % Rate of compensation increase   N/a   N/a
Schedule of Allocation of Plan Assets	Pension plans have the following weighted-average asset allocations:     September 30, 2016   September 25, 2015 Asset Category:         Equity securities   52%   59% Debt securities   33%   40% Cash and cash equivalents   15%   1% Total   100%   100% The Company’s asset allocations by level within the fair value hierarchy for the years ended September 30, 2016 and September 25, 2015, are presented in the table below for the Company’s defined benefit plans.     September 30, 2016   September 25, 2015 (in thousands)   Level 1   Level 2   Level 3   Total   Level 1   Level 2   Level 3   Total Equity securities:                                 U.S. equity securities   $ —   $ 28,798   $ —   $ 28,798   $ 9,635   $ 26,682   $ —   $ 36,317 Non-U.S. equity securities   —   21,754   —   21,754   —   18,990   —   18,990 Fixed income securities:                             Government and government agency securities   —   7,688   —   7,688   —   17,890   —   17,890 Corporate debt securities   —   16,230   —   16,230   —   18,791   —   18,791 Mortgage and other asset-backed securities   —   8,454   —   8,454   —   376   —   376 Cash and cash equivalents   15,056   —   —   15,056   710   —   —   710 Total   $ 15,056   $ 82,924   $ —   $ 97,980   $ 10,345   $ 82,729   $ —   $ 93,074
Schedule of Future Benefit Payments	Benefit payments, which reflect future expected service as appropriate, are expected to be paid in each fiscal year as follows: (in thousands)     2017   $ 4,926 2018   5,338 2019   5,659 2020   6,040 2021   6,358 2022-2026   35,361