CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2019	Apr. 01, 2018
CASH FLOWS FROM OPERATING ACTIVITIES:
Net loss	$ (41,956)	$ (38,941)
Reconciliation to net cash provided by (used in) operating activities:
Depreciation and amortization	17,518	19,233
Gain on disposal of property and equipment (excluding other asset write-downs)	(43)	(3,016)
Retirement benefit expense	10,727	2,778
Stock-based compensation expense	663	741
Deferred income taxes	132
Equity loss in unconsolidated companies	629	1,268
Distributions of income from investments in unconsolidated companies		56
Loss on extinguishment of debt, net		5,349
Other asset write-downs	739	59
Bond fees and other debt-related items	2,547	725
Other	(2,410)	(2,494)
Changes in certain assets and liabilities:
Trade receivables	23,962	23,458
Inventories	(533)	(1,077)
Other assets	(1,492)	(1,713)
Accounts payable	(6,671)	(1,485)
Accrued compensation	2,720	994
Income taxes	3,260	7,784
Accrued interest	(13,531)	4,272
Other liabilities	(1,973)	221
Net cash provided by (used in) operating activities	(5,712)	18,212
CASH FLOWS FROM INVESTING ACTIVITIES:
Purchases of property, plant and equipment	(259)	(2,088)
Proceeds from sale of property, plant and equipment and other	147	3,708
Contributions to cost and equity investments	(125)	(500)
Net cash provided by (used in) investing activities	(237)	1,120
CASH FLOWS FROM FINANCING ACTIVITIES:
Repurchase of notes and related expenses		(99,284)
Payment of financing costs	(28)
Purchase of treasury shares	(268)	(307)
Other	(283)	848
Net cash used in financing activities	(579)	(98,743)
Decrease in cash, cash equivalents and restricted cash	(6,528)	(79,411)
Cash, cash equivalents and restricted cash at beginning of period	50,555	131,354
CASH, CASH EQUIVALENTS AND RESTRICTED CASH AT END OF PERIOD	$ 44,027	$ 51,943