CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Cash flows from operating activities:
Net earnings	$ 267,159	$ 201,392	$ 307,583
Adjustments to reconcile net earnings to net cash provided by operating activities:
Depreciation and amortization	114,384	115,903	102,412
(Gain) on sale/disposal of long-lived assets	(568)	0	(11,054)
Deferred income taxes	(10,200)	(7,048)	40,787
Share-based compensation	13,450	14,437	13,669
Impairment of assets held for sale	19,088	33,043	0
Foreign Currency Transaction Gain (Loss), before Tax		9,351
Restructuring Costs, Noncash		15,628
Change in operating assets and liabilities, net of businesses acquired and divested:
Accounts receivable, net	(59,372)	71,147	(12,613)
Inventories, net	15,321	15,535	(3,485)
Progress Payments	(3,672)	(7,689)	(4,834)
Accounts payable and accrued expenses	17,713	(55,513)	(18,629)
Deferred revenue	9,584	(33,179)	36,134
Income taxes	(12,988)	15,171	(15,625)
Net pension and postretirement liabilities	(1,236)	(153,375)	(1,310)
Other current and long-term assets and liabilities	19,005	26,377	(11,631)
Net cash provided by operating activities	387,668	261,180	421,404
Cash flows from investing activities:
Proceeds from sales and disposals of long-lived assets	4,045	2,930	15,093
Additions to property, plant, and equipment	(41,108)	(47,499)	(69,752)
Payments to Acquire Businesses, Net of Cash Acquired		487,944	185,209
Payments for Previous Acquisition	5,340
Payments for (Proceeds from) Other Investing Activities	0	17	172
Net cash used for investing activities	(42,403)	(532,530)	(240,040)
Cash flows from financing activities:
Borrowings under revolving credit facilities	455,950	570,675	37,692
Payment of revolving credit facilities	(362,050)	(570,675)	(37,934)
Borrowings of debt		300,000
Principal payments on debt	(100,000)
Repurchases of company stock	(343,129)	(200,018)	(50,661)
Proceeds from share-based compensation plans	9,705	11,148	11,770
Dividends paid	(28,660)	(28,175)	(28,200)
Other	(945)	(874)	(812)
Net cash provided by (used for) financing activities	(369,129)	82,081	(68,145)
Effect of exchange-rate changes on cash	(3,380)	(3,516)	1,748
Net increase (decrease) in cash and cash equivalents	(27,244)	(192,785)	114,967
Cash and cash equivalents at beginning of period	198,248	391,033	276,066
Cash and cash equivalents at end of period	$ 171,004	$ 198,248	$ 391,033