Consolidated Statements of Cash Flows - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
CASH FLOWS FROM OPERATING ACTIVITIES:
Net income (loss)	$ 188,306	$ (11,745)
Adjustments to reconcile net income (loss) to net cash provided by operating activities:
Depreciation, accretion, and amortization	174,323	183,881
(Gain) loss on remeasurement of U.S. denominated intercompany loans	(109,644)	86,251
Non-cash compensation expense	24,747	20,422
Non-cash asset impairment and decommission costs	8,366	4,791
Loss from extinguishment of debt, net		10,652
Deferred income tax provision (benefit)	34,262	(26,837)
Other non-cash items reflected in the Statements of Operations	16,896	17,413
Changes in operating assets and liabilities, net of acquisitions:
Accounts receivable and costs and estimated earnings in excess of billings on uncompleted contracts, net	(9,812)	(4,523)
Prepaid expenses and other assets	(2,201)	3,517
Operating lease right-of-use assets, net	33,682	29,865
Accounts payable and accrued expenses	(7,002)	(4,667)
Accrued interest	(25,384)	(27,347)
Long-term lease liabilities	(31,038)	(26,393)
Other liabilities	(3,019)	30,218
Net cash provided by operating activities	292,482	285,498
CASH FLOWS FROM INVESTING ACTIVITIES:
Acquisitions	(215,181)	(1,052,676)
Capital expenditures	(38,008)	(24,536)
Purchase of investments	(30,393)	(755,013)
Proceeds from sale of investments	30,214	755,000
Other investing activities	(2,513)	641
Net cash used in investing activities	(255,881)	(1,076,584)
CASH FLOWS FROM FINANCING ACTIVITIES:
Borrowings under Revolving Credit Facility	330,000	710,000
Repayments under Revolving Credit Facility		(500,000)
Proceeds from issuance of Senior Notes, net of fees		1,485,670
Repayment of Senior Notes		(757,500)
Repurchase and retirement of common stock	(431,667)	(168,923)
Payment of dividends on common stock	(76,873)	(63,412)
Proceeds from employee stock purchase/stock option plans	10,836	10,838
Payments related to taxes on stock options and restricted stock units	(9,228)	(8,823)
Other financing activities	25,182	(6,507)
Net cash (used in) provided by financing activities	(151,750)	701,343
Effect of exchange rate changes on cash, cash equivalents, and restricted cash	15,961	(10,880)
NET CHANGE IN CASH, CASH EQUIVALENTS, AND RESTRICTED CASH	(99,188)	(100,623)
CASH, CASH EQUIVALENTS, AND RESTRICTED CASH:
Beginning of period	435,626	342,808
End of period	336,438	242,185
Cash paid during the period for:
Interest	107,594	118,430
Income taxes	5,696	6,387
SUPPLEMENTAL CASH FLOW INFORMATION OF NON-CASH ACTIVITIES:
Right-of-use assets obtained in exchange for new operating lease liabilities	41,038	11,890
Operating lease modifications and reassessments	12,445	6,181
Right-of-use assets obtained in exchange for new finance lease liabilities	$ 674	$ 1,033