Condensed Consolidated Statements of Cash Flows - USD ($) $ in Thousands	6 Months Ended
	Jun. 28, 2019	Jun. 29, 2018
Cash flows from operating activities:
Net income	$ 1,100	$ 43,701
Adjustments to reconcile net income to net cash provided by (used in) operating activities (excluding assets acquired and liabilities assumed):
Depreciation and amortization	10,417	2,917
Amortization of finite-lived intangibles	9,907	2,195
Amortization of debt issuance costs	901	76
Stock-based compensation	5,777	4,920
Change in the fair value of financial instruments	52	(228)
Loss (gain) on the disposal of assets and business	(274)	201
Changes in assets and liabilities:
Accounts receivable	10,001	(8,758)
Inventories	32,362	7,766
Prepaid expenses and other current assets	3,705	(3,558)
Deferred income taxes	(2,077)	(113)
Other non-current assets	(566)	(313)
Accounts payable	(4,704)	(59,490)
Accrued compensation and related benefits	3,358	(1,332)
Income taxes payable	(2,206)	(3,933)
Other liabilities	264	3,903
Net cash provided by (used in) operating activities	68,017	(12,046)
Cash flows from investing activities:
Purchases of property and equipment	(6,750)	(9,666)
Acquisition of Dynamic Manufacturing Solutions, LLC	(29,873)
Proceeds from sale of equipment	458
Net cash used in investing activities	(36,165)	(9,666)
Cash flows from financing activities:
Proceeds from bank borrowings	28,112	21,886
Proceeds from issuance of common stock	125	94,454
Payments on bank borrowings and finance leases	(32,389)	(19,148)
Employees’ taxes paid upon vesting of restricted stock units	(1,394)	(2,618)
Net cash provided by (used in) financing activities	(5,546)	94,574
Effect of exchange rate changes on cash and cash equivalents	(2,323)	(22)
Net increase in cash and cash equivalents	23,983	72,840
Cash and cash equivalents at beginning of period	144,145	68,306
Cash and cash equivalents at end of period	168,128	141,146
Supplemental cash flow information:
Income taxes paid	8,661	9,200
Income tax refunds	37	43
Interest paid	12,324	942
Non-cash activities:
Operating lease right-of-use assets	35,633
Operating lease liabilities	38,493
Fair value of earn-out payment related to DMS acquisition	1,428
Property and equipment purchased included in accounts payable and other liabilities	$ 5,136	$ 2,575