Condensed Consolidated Statements of Cash Flows (Unaudited) - USD ($) $ in Thousands	3 Months Ended
	Apr. 01, 2018	Apr. 02, 2017
Cash flows from operating activities:
Net income (loss)	$ 21,783	$ 25,078
Adjustments to reconcile net income (loss) to net cash flow provided by (used in) operating activities:
Loss (income) from discontinued operations, net of tax	250	245
Depreciation	13,934	14,024
Amortization	6,585	5,970
Share based compensation expense	3,065	2,427
Deferred income taxes	3,619	(1,048)
Unrealized foreign exchange loss (gain)	692	266
Share of loss (income) from equity investees, net of tax	(311)	(297)
Pension and post-retirement expense (funding), net	(1,424)	(1,651)
Non-cash accruals and interest	382	456
Loss (gain) on sale of property, plant and equipment	612	(274)
Accounts receivable	(16,629)	(29,226)
Inventories	(1,644)	(10,613)
Prepaid expenses	(176)	1,020
Accounts payable and accrued expenses	(1,969)	(4,334)
Other assets and liabilities	(1,576)	(4,577)
Net cash flow provided by (used in) operating activities	27,193	(2,534)
Cash flows from investing activities:
Proceeds from sale of property, plant and equipment	0	396
Additions to property, plant and equipment	(21,801)	(14,668)
Cash used in acquisitions, net of cash acquired	(96,309)	0
Other investing activities	(862)	(1,008)
Net cash flow provided by (used in) investing activities	(118,972)	(15,280)
Cash flows from financing activities:
Proceeds from issuance of long-term debt	0	423
Repayments of long-term debt	(102)	(141)
Tax witholding on share based awards	(2,422)	(6,167)
Distributions to non-controlling interests	(975)	0
Repurchases of common shares	(44,191)	(11,252)
Net cash flow provided by (used in) financing activities	(47,690)	(17,137)
Net foreign currency translation adjustment on cash	(224)	(2,276)
Increase (decrease) in cash, cash equivalents and restricted cash	(139,693)	(37,227)
Cash, cash equivalents and restricted cash, beginning of period	188,564	83,910
Cash, cash equivalents and restricted cash, at end of period	$ 48,871	$ 46,683