Consolidated Statement of Operations - USD ($) shares in Thousands, $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Product Information [Line Items]
Revenue	$ 4,143,143	$ 3,511,509	$ 3,230,785
Costs of revenue	(2,839,529)	(2,534,682)	(2,470,205)
Gross profits	1,303,614	976,827	760,580
Corporate general and administrative expenses	(138,107)	(141,066)	(126,886)
Gains on divestitures and impairment charges, net	25,169	7,009	32,919
Operating income	1,190,676	842,770	666,613
Interest expense	(150,610)	(163,063)	(185,843)
Losses on early extinguishment of debt, net	(5,226)	(18,428)	(16,637)
Other income, net	10,660	781	299
Income from continuing operations before income taxes	1,045,500	662,060	464,432
Provision for income taxes	(242,248)	(145,923)	(94,661)
Net income	803,252	516,137	369,771
Net income attributable to noncontrolling interests	(313)	(230)	(175)
Net income attributable to common stockholders	$ 802,939	$ 515,907	$ 369,596
Basic earnings per share:
Net income attributable to common stockholders, basic	$ 4.79	$ 2.92	$ 2.03
Basic weighted average number of shares	167,542	176,709	182,246
Diluted earnings per share:
Net income attributable to common stockholders, diluted	$ 4.72	$ 2.88	$ 1.99
Diluted weighted average number of shares	170,114	178,990	185,523
Product [Member]
Product Information [Line Items]
Revenue	$ 2,139,795	$ 1,772,778	$ 1,610,158
Costs of revenue	(1,007,261)	(867,215)	(829,158)
Service [Member]
Product Information [Line Items]
Revenue	1,730,860	1,513,420	1,379,001
Costs of revenue	(833,183)	(749,695)	(769,119)
Product and Service, Other [Member]
Product Information [Line Items]
Revenue	272,488	225,311	241,626
Costs of revenue	$ (999,085)	$ (917,772)	$ (871,928)