Condensed Consolidated Statements of Cash Flows - Unaudited - USD ($) $ in Thousands	3 Months Ended
	Apr. 03, 2020	Mar. 29, 2019
Cash flows from operating activities:
Net income (loss)	$ 31,100	$ 21,669
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	19,494	19,658
Debt related charges included in interest expense	1,023	1,774
Stock-based compensation	1,738	2,713
Non-cash charges related to customer bankruptcy	628	0
Non-cash lease expense	1,930	1,864
Non-cash (gain) loss on equity investments	(1,925)	41
Other non-cash gains	(1,085)	(1,075)
Deferred income taxes	61	96
Changes in operating assets and liabilities, net of acquisition:
Accounts receivable	(8,165)	(30,924)
Inventories	(4,365)	8,612
Prepaid expenses and other assets	(13,350)	(14,266)
Accounts payable	18,458	15,411
Accrued expenses and other liabilities	(18,108)	(15,894)
Income taxes payable	4,963	1,555
Net cash provided by operating activities	32,397	11,234
Cash flows from investing activities:
Acquisition of property, plant and equipment	(14,925)	(7,447)
Purchase of intangible asset	(3,500)	0
Proceeds from sale of property, plant and equipment	52	2
Purchase of equity investments	0	(42)
Acquisitions, net	(5,219)	0
Net cash used in investing activities	(23,592)	(7,487)
Cash flows from financing activities:
Principal payments of long-term debt	(9,375)	(30,375)
Proceeds from senior secured revolving line of credit	25,000	15,000
Proceeds from the exercise of stock options	2,201	1,338
Tax withholdings related to net share settlements of restricted stock unit awards	(2,664)	(2,123)
Net cash provided by (used in) financing activities	15,162	(16,160)
Effect of foreign currency exchange rates on cash and cash equivalents	(243)	382
Net increase (decrease) in cash and cash equivalents	23,724	(12,031)
Cash and cash equivalents, beginning of period	13,535	25,569
Cash and cash equivalents, end of period	$ 37,259	$ 13,538