Condensed Consolidated Statements of Cash Flows - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2025	Jun. 30, 2024
CASH FLOWS FROM OPERATING ACTIVITIES:
Net Income	$ 153,988	$ 141,579
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	51,171	42,160
Income of investees, net of dividends	(2,700)	(3,301)
(Gains) Losses on asset disposals and impairments, net	(4,418)	(4)
Recognition of losses for pension and postretirement plans	1,627	1,663
Stock-based compensation expense	13,735	10,279
Other, net	(9,366)	(28)
Changes in assets and liabilities, net of effects from acquisitions:
Accounts receivable	(465)	(20,319)
Accounts payable	6,875	47,018
Retainages	(7,045)	587
Contracts in progress and advance billings on contracts	7,754	(78,722)
Income taxes	22,558	(6,741)
Accrued and other current liabilities	19,382	(328)
Pension liabilities, accrued postretirement benefit obligations and employee benefits	(33,656)	(23,625)
Other, net	(9,747)	(11,298)
NET CASH PROVIDED BY OPERATING ACTIVITIES	209,693	98,920
CASH FLOWS FROM INVESTING ACTIVITIES:
Purchases of property, plant and equipment	(66,098)	(60,827)
Acquisition of businesses, net of cash acquired	(538,184)	0
Sales and maturities of securities	3,397	0
Investments, net of return of capital, in equity method investees	(33,000)	0
Other, net	4,405	203
NET CASH USED IN INVESTING ACTIVITIES	(629,480)	(60,624)
CASH FLOWS FROM FINANCING ACTIVITIES:
Borrowings of long-term debt	758,400	241,400
Repayments of long-term debt	(284,650)	(239,525)
Repurchases of common stock	(30,000)	(20,000)
Dividends paid to common shareholders	(46,798)	(44,373)
Cash paid for shares withheld to satisfy employee taxes	(12,883)	(6,941)
Settlements of forward contracts, net	1,657	4,543
Other, net	100	(108)
NET CASH PROVIDED BY (USED IN) FINANCING ACTIVITIES	385,826	(65,004)
EFFECTS OF EXCHANGE RATE CHANGES ON CASH	(2,475)	(308)
TOTAL DECREASE IN CASH AND CASH EQUIVALENTS AND RESTRICTED CASH AND CASH EQUIVALENTS	(36,436)	(27,016)
CASH AND CASH EQUIVALENTS AND RESTRICTED CASH AND CASH EQUIVALENTS AT BEGINNING OF PERIOD	80,571	81,615
CASH AND CASH EQUIVALENTS AND RESTRICTED CASH AND CASH EQUIVALENTS AT END OF PERIOD	44,135	54,599
Cash paid during the period for:
Interest	30,036	32,181
Income taxes (net of refunds)	11,890	45,382
SCHEDULE OF NON-CASH INVESTING ACTIVITY:
Accrued capital expenditures included in accounts payable	$ 15,575	$ 9,273