Condensed Consolidated Statements of Changes in Stockholders' Equity (Unaudited) - USD ($) shares in Thousands, $ in Thousands	Total	Common Stock	Treasury Stock	Additional Paid-in Capital	Retained Earnings	Non-controlling Interests
Balance (shares) at Dec. 31, 2017		269,295	(1,332)
Balance at Dec. 31, 2017	$ 3,513,579	$ 2,668	$ (22,179)	$ 2,677,217	$ 717,985	$ 137,888
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Issuance of common stock due to acquisition (shares)		46,000
Issuance of common stock due to acquisition	371,220	$ 460		370,760
Equity-based compensation (shares)		2,758
Equity-based compensation	7,208	$ 26		7,116		66
Distributions to non-controlling interest owners	(3,450)					(3,450)
Treasury stock - tax withholdings (shares)		(690)	(690)
Treasury stock - tax withholdings	(6,021)		$ (6,021)
Other	(90)			(90)
Net income (loss)	3,712				590	3,122
Balance (shares) at Mar. 31, 2018		317,363	(2,022)
Balance at Mar. 31, 2018	3,886,158	$ 3,154	$ (28,200)	3,055,003	718,575	137,626
Balance (shares) at Dec. 31, 2017		269,295	(1,332)
Balance at Dec. 31, 2017	3,513,579	$ 2,668	$ (22,179)	2,677,217	717,985	137,888
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss)	(246,366)
Balance (shares) at Sep. 30, 2018		318,419	(2,089)
Balance at Sep. 30, 2018	3,644,083	$ 3,157	$ (28,985)	3,070,642	460,712	138,557
Balance (shares) at Mar. 31, 2018		317,363	(2,022)
Balance at Mar. 31, 2018	3,886,158	$ 3,154	$ (28,200)	3,055,003	718,575	137,626
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Equity-based compensation (shares)		625
Equity-based compensation	7,830			7,730		100
Distributions to non-controlling interest owners	(3,396)					(3,396)
Treasury stock - tax withholdings (shares)		(3)	(3)
Treasury stock - tax withholdings	(43)		$ (43)
Other	3			128		(125)
Net income (loss)	(316,301)				(320,204)	3,903
Balance (shares) at Jun. 30, 2018		317,985	(2,025)
Balance at Jun. 30, 2018	3,574,251	$ 3,154	$ (28,243)	3,062,861	398,371	138,108
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Equity-based compensation (shares)		498
Equity-based compensation	7,898			7,781		114
Distributions to non-controlling interest owners	(3,547)					(3,547)
Treasury stock - tax withholdings (shares)		(64)	(64)
Treasury stock - tax withholdings	(742)		$ (742)
Net income (loss)	66,223				62,341	3,882
Balance (shares) at Sep. 30, 2018		318,419	(2,089)
Balance at Sep. 30, 2018	3,644,083	$ 3,157	$ (28,985)	3,070,642	460,712	138,557
Balance (shares) at Dec. 31, 2018		318,377	(2,092)
Balance at Dec. 31, 2018	3,918,880	$ 3,157	$ (29,025)	3,077,755	682,689	184,304
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Equity-based compensation (shares)		4,360
Equity-based compensation	9,606	$ 25		9,462		119
Distributions to non-controlling interest owners	(4,937)					(4,937)
Treasury stock - tax withholdings (shares)		(686)	(686)
Treasury stock - tax withholdings	(4,261)		$ (4,261)			0
Other	(175)			(134)		(41)
Net income (loss)	(107,978)				(114,882)	6,904
Balance (shares) at Mar. 31, 2019		322,051	(2,778)
Balance at Mar. 31, 2019	3,811,135	$ 3,182	$ (33,286)	3,087,083	567,807	186,349
Balance (shares) at Dec. 31, 2018		318,377	(2,092)
Balance at Dec. 31, 2018	3,918,880	$ 3,157	$ (29,025)	3,077,755	682,689	184,304
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss)	(26,493)
Balance (shares) at Sep. 30, 2019		321,344	(2,891)
Balance at Sep. 30, 2019	3,899,661	$ 3,186	$ (33,650)	3,104,938	630,852	194,335
Balance (shares) at Mar. 31, 2019		322,051	(2,778)
Balance at Mar. 31, 2019	3,811,135	$ 3,182	$ (33,286)	3,087,083	567,807	186,349
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Equity-based compensation (shares)		149
Equity-based compensation	9,566	$ 1		9,465		100
Distributions to non-controlling interest owners	(5,156)					(5,156)
Treasury stock - tax withholdings (shares)		(8)	(8)
Treasury stock - tax withholdings	(44)		$ (44)			0
Other	(217)			(193)		(24)
Net income (loss)	51,174				42,757	8,417
Balance (shares) at Jun. 30, 2019		321,894	(2,786)
Balance at Jun. 30, 2019	3,866,458	$ 3,183	$ (33,330)	3,096,355	610,564	189,686
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Equity-based compensation (shares)		445
Equity-based compensation	8,670	$ 3		8,583		84
Distributions to non-controlling interest owners	(5,458)					(5,458)
Treasury stock - tax withholdings (shares)		(105)	(105)
Treasury stock - tax withholdings	(320)		$ (320)
Net income (loss)	30,311				20,288	10,023
Balance (shares) at Sep. 30, 2019		321,344	(2,891)
Balance at Sep. 30, 2019	$ 3,899,661	$ 3,186	$ (33,650)	$ 3,104,938	$ 630,852	$ 194,335