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	$ 40,685	$ 59,469
Adjustments to reconcile net earnings to net cash used for operating activities:
Depreciation and amortization	27,363	28,595
Loss on divestiture	4,651	0
Gain on sale/disposal of long-lived assets	(3,070)	(349)
Deferred income taxes	803	3,629
Share-based compensation	3,809	3,327
Change in operating assets and liabilities, net of businesses acquired:
Receivables, net	(13,414)	(27,593)
Inventories, net	(38,149)	(18,059)
Progress payments	(395)	(1,114)
Accounts payable and accrued expenses	(79,492)	(71,528)
Deferred revenue	(35,154)	(14,836)
Income taxes payable	6,927	16,247
Pension and postretirement liabilities, net	(6,034)	1,182
Other current and long-term assets and liabilities	(32,845)	(5,573)
Net cash used for operating activities	(124,315)	(26,603)
Cash flows from investing activities:
Proceeds from sale/disposal of long-lived assets	5,567	1,022
Additions to property, plant, and equipment	(10,896)	(8,537)
Additional consideration paid on prior year acquisitions	5,062	5,340
Net cash used for investing activities	(10,391)	(12,855)
Cash flows from financing activities:
Borrowings under revolving credit facility	241,198	65,301
Payment of revolving credit facility	121,198	65,301
Repurchases of common stock	(18,857)	(11,797)
Proceeds from share-based compensation	5,284	4,919
Other	(248)	(229)
Net cash provided by (used for) financing activities	106,179	(7,107)
Effect of exchange-rate changes on cash	(5,795)	(4,614)
Net decrease in cash and cash equivalents	(34,322)	(51,179)
Cash and cash equivalents at beginning of period	171,004	198,248
Cash and cash equivalents at end of period	$ 136,682	$ 147,069