Consolidated Statements of Cash Flows - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2022	Oct. 01, 2021
Cash flows from operating activities:
Net income	$ 57,226	$ 52,791
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation, depletion, and amortization	39,223	32,478
Amortization of deferred financing costs in interest expense	1,310	546
Stock-based compensation expense (non-cash)	5,997	4,924
Deferred income tax expense (benefit)	1,825	(263)
Changes in assets and liabilities:
Accounts receivable	(20,964)	(26,041)
Inventory	(64,832)	(62,353)
Prepaid and other current assets	(3,019)	(7,020)
Accounts payable and accrued expenses	(1,785)	35,314
Unearned revenue	(2,191)	650
Interest and taxes payable	(1,741)	(1,504)
Unearned income due to customer prepayments	17,501	9,022
Other-net	5,654	1,974
Net cash provided by operating activities	34,204	40,518
Cash flows from investing activities:
Payments for purchase of property, plant, and equipment	(54,236)	(77,640)
Proceeds from sale of property, plant, and equipment	827	686
Payments for acquisition	(2,971)	0
Net cash used in investing activities	(56,380)	(76,954)
Cash flows from financing activities:
Proceeds from borrowings under revolving credit agreement, net	49,092	43,010
Proceeds from issuance of debt	6,643	0
Repayment of long-term debt	(11,761)	(1,803)
Principal payments under finance lease obligations	(1,985)	(2,152)
Cash dividends paid	(7,584)	(7,243)
Payments of withholding taxes for stock-based compensation awards	(3,056)	(3,033)
Net cash provided by financing activities	31,349	28,779
Effects of exchange rate changes	(2,953)	(212)
Net change in cash and cash equivalents	6,220	(7,869)
Cash and cash equivalents at beginning of period	14,462	25,878
Cash and cash equivalents at end of period	$ 20,682	$ 18,009