Condensed Consolidated Statement of Cash Flows - USD ($) $ in Thousands	3 Months Ended
	Apr. 03, 2021	Mar. 28, 2020
Cash flows from operating activities:
Net income	$ 66,634	$ 39,140
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	14,638	15,371
Stock-based compensation	6,416	2,051
Net loss (gain) on disposals and impairments of assets	78	(22)
Deferred income taxes	1,515	5,334
Changes in operating assets and liabilities:
Accounts receivable	5,948	12,808
Inventories	(946)	5,044
Income taxes	6,847	5,798
Prepaid expenses and other assets	(3,113)	7,478
Accounts payable	12,390	11,282
Customer prepayments	20,552	(8,432)
Accrued compensation and benefits	(34,605)	(13,157)
Other taxes and withholding	8,912	(479)
Other accruals and liabilities	6,332	2,725
Net cash provided by operating activities	111,598	84,941
Cash flows from investing activities:
Purchases of property and equipment	(11,546)	(10,351)
Proceeds from sales of property and equipment	12	25
Net cash used in investing activities	(11,534)	(10,326)
Cash flows from financing activities:
Repurchases of common stock	(178,613)	(41,445)
Net increase in short-term borrowings	74,087	201,170
Proceeds from issuance of common stock	2,460	3,283
Debt issuance costs	(3)	(3)
Net cash (used in) provided by financing activities	(102,069)	163,005
Net (decrease) increase in cash and cash equivalents	(2,005)	237,620
Cash and cash equivalents, at beginning of period	4,243	1,593
Cash and cash equivalents, at end of period	$ 2,238	$ 239,213