CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS - UNAUDITED - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
CASH FLOWS FROM OPERATING ACTIVITIES:
Net earnings	$ 20,239	$ 11,990
Adjustments to reconcile net earnings to net cash provided by operating activities:
Depreciation and amortization	6,749	6,800
Pension and other post-retirement plan expense	91	1,980
Stock-based compensation	1,950	1,219
Deferred income taxes	1,195	63
Gain on foreign currency hedges, net of cash	(15)	(42)
Changes in assets and liabilities, net of acquisition:
Accounts receivable	(9,969)	(1,121)
Inventories	(615)	(2,052)
Operating lease assets	(224)	(340)
Other assets	(253)	168
Accounts payable	3,936	2,864
Accrued payroll and benefits	(5,733)	(210)
Operating lease liabilities	93	325
Accrued expenses and other liabilities	2,219	(1,398)
Pension and other post-retirement plans	(377)	(136)
Net cash provided by operating activities	19,286	20,110
CASH FLOWS FROM INVESTING ACTIVITIES:
Capital expenditures	(3,400)	(1,638)
Payments for acquisition, net of cash received	(24,484)
Net cash used in investing activities	(27,884)	(1,638)
CASH FLOWS FROM FINANCING ACTIVITIES:
Payments of long-term debt	(150,000)	(241,600)
Proceeds from borrowings of long-term debt	150,000	237,000
Purchase of treasury stock	(3,920)
Dividends paid	(1,289)	(1,291)
Payment of contingent consideration	(150)
Taxes paid on behalf of equity award participants	(1,413)	(1,402)
Net cash used in financing activities	(6,772)	(7,293)
Effect of exchange rate changes on cash and cash equivalents	23	440
Net (decrease) increase in cash and cash equivalents	(15,347)	11,619
Cash and cash equivalents at beginning of period	141,465	91,773
Cash and cash equivalents at end of period	126,118	103,392
Supplemental cash flow information:
Cash paid for interest	480	378
Cash paid for income taxes, net	2,548	3,510
Capital expenditures incurred but not paid	$ 1,339	$ 1,019