Consolidated Statements of Stockholders' Equity - USD ($) $ in Thousands	Total	Common Stock [Member]	Additional Paid-in Capital [Member]	Retained Earnings [Member]	Cash Flow Hedges	Foreign Currency Translation	Comprehensive Income [Member]	Noncontrolling Interest [Member]	Common Class A [Member]	Common Class B [Member]	Triton [Member] Common Stock [Member]	Triton [Member] Common Stock [Member]
Net Income (Loss) Attributable to Noncontrolling Interest	$ 16,580
Beginning balance, shares at Dec. 31, 2014		0							35,221,615	4,800,000
Beginning balance at Dec. 31, 2014	1,297,011	$ 0	$ 175,605	$ 933,313	$ 0	$ (3,258)	$ (3,258)	$ 190,851	$ 440	$ 60
Issuance of common shares (in shares)									406,970.4
Issuance of common shares	0		(5)						$ 5
Adjustments to Additional Paid in Capital, Share-based Compensation, Requisite Service Period Recognition	12,048		12,048
Share repurchase to settle shareholder tax obligations			(5,388)
Liability classified service-based share options	(6,172)		(6,172)
Net Income (Loss) Available to Common Stockholders, Basic	111,089
Net income	127,669			111,089				16,580
Net Income (Loss) Attributable to Parent	127,669
Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Adjustment, Net of Tax						(408)	(408)
Change in fair value of derivative instruments designated as cash flow hedges	0
Reclassification of realized loss on interest rate swap agreements designated as cash flow hedges	0
Distributions to non-controlling interest								(46,927)
Ending balance, shares at Dec. 31, 2015		0							35,628,585	4,800,000
Ending balance at Dec. 31, 2015	1,377,833	$ 0	176,088	1,044,402	0	(3,666)	(3,666)	160,504	$ 445	$ 60
Business Combination, Contingent Consideration, Asset	0
Net Income (Loss) Attributable to Noncontrolling Interest	7,732
Issuance of common shares (in shares)		465,097							140,237
Issuance of common shares	5	$ 5	(2)						$ 2
Adjustments to Additional Paid in Capital, Share-based Compensation, Requisite Service Period Recognition	5,399		5,399
Adjustment to fair market value classified service-based options	(907)		(907)
Settlement of liability classified service-based share options (in shares)									517,912
Settlement of liability classified service-based share options	7,080		7,075						$ 5
Share repurchase to settle shareholder tax obligations (in shares)		(14,290)							(232,715)
Share repurchase to settle shareholder tax obligations	(3,393)		(3,175)	(216)					$ (2)
Redemption / Cancellation of common shares (in shares)		(230,857)							(32,536)
Redemption / Cancellation of common shares	(4,017)	$ (3)	(4,014)
Net Income (Loss) Available to Common Stockholders, Basic	(13,517)
Net income	(5,785)
Net Income (Loss) Attributable to Parent	(5,785)
Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Adjustment, Net of Tax						(758)	(758)
Issuance and conversion of Triton shares due to Merger (in shares)									36,021,483.4	4,800,000	74,156,075
Issuance and conversion of Triton shares due to Merger	510,186		509,954						$ (450)	$ (60)		$ 742
Change in fair value of derivative instruments designated as cash flow hedges	30,405				30,405	0	30,405
Reclassification of realized loss on interest rate swap agreements designated as cash flow hedges	777				777	0	777
Distributions to non-controlling interest								(24,732)
Common shares dividends declared				(85,356)
Ending balance, shares at Dec. 31, 2016		74,376,025							0	0
Ending balance at Dec. 31, 2016	1,806,737	$ 744	690,418	945,313	31,182	(4,424)	26,758	143,504	$ 0	$ 0
Business Combination, Contingent Consideration, Asset	510,186
Net Income (Loss) Attributable to Noncontrolling Interest	8,928
Issuance of common shares (in shares)		6,313,694							0
Issuance of common shares	193,172	$ 63	193,109						$ 0
Adjustments to Additional Paid in Capital, Share-based Compensation, Requisite Service Period Recognition	5,641		5,641
Cumulative adjustment for adoption of ASU 2016-09	6,582			6,582
Share repurchase to settle shareholder tax obligations (in shares)		(1,962)
Share repurchase to settle shareholder tax obligations	(70)			(70)
Net Income (Loss) Available to Common Stockholders, Basic	344,598
Net income	353,526
Net Income (Loss) Attributable to Parent	353,526
Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Adjustment, Net of Tax						151	151
Change in fair value of derivative instruments designated as cash flow hedges	(407)				(407)	0	(407)
Reclassification of realized loss on interest rate swap agreements designated as cash flow hedges	440				440	0	440
Distributions to non-controlling interest								(18,890)
Common shares dividends declared				(137,056)
Ending balance, shares at Dec. 31, 2017		80,687,757							0	0
Ending balance at Dec. 31, 2017	2,209,826	$ 807	$ 889,168	$ 1,159,367	$ 31,215	$ (4,273)	$ 26,942	$ 133,542	$ 0	$ 0
Business Combination, Contingent Consideration, Asset	$ 0