Condensed Consolidated Statements of Changes in Stockholders' Equity - USD ($) $ in Thousands	Common Stock [Member] Class A Shares [Member]	Common Stock [Member] Class B Shares [Member]	Common Stock [Member] Class A Common Stock [Member]	Additional Paid-in Capital [Member]	Accumulated Deficit [Member]	Accumulated Other Comprehensive (Loss) Income [Member]	Non-controlling Interest [Member]	Total	Class A Common Stock [Member]	Cumulative Effect, Period of Adoption, Adjustment [Member] Common Stock [Member] Class A Shares [Member]	Cumulative Effect, Period of Adoption, Adjustment [Member] Common Stock [Member] Class B Shares [Member]	Cumulative Effect, Period of Adoption, Adjustment [Member] Common Stock [Member] Class A Common Stock [Member]	Cumulative Effect, Period of Adoption, Adjustment [Member] Additional Paid-in Capital [Member]	Cumulative Effect, Period of Adoption, Adjustment [Member] Accumulated Deficit [Member]	Cumulative Effect, Period of Adoption, Adjustment [Member] Accumulated Other Comprehensive (Loss) Income [Member]	Cumulative Effect, Period of Adoption, Adjustment [Member] Non-controlling Interest [Member]	Cumulative Effect, Period of Adoption, Adjustment [Member]
Balance at Dec. 31, 2019	$ 130,658	$ 0	$ 0	$ 0	$ (45,823)	$ (30)	$ 302,519	$ 387,324
Balance (ASC 842 [Member]) at Dec. 31, 2019										$ 0	$ 0	$ 0	$ 0	$ (1,533)	$ 0	$ (7,780)	$ (9,313)
Balance (in shares) at Dec. 31, 2019	23,607,096	144,342,572	0
Balance (in shares) (ASC 842 [Member]) at Dec. 31, 2019										0	0	0
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net (loss) income	$ 0	$ 0	$ 0	0	(8,466)	0	(51,757)	(60,223)
Other comprehensive loss	0	0	0	0	0	(53)	(316)	(369)
Share-based compensation expense	2,508	0	0	0	0	0	0	2,508
Issuance of shares for vested RSUs	$ 0	$ 0	$ 0	0	0	0	0	0
Issuance of shares for vested RSUs (in shares)	1,212,907	0	0
Shares withheld from employees related to share-based compensation, at cost	$ (6,132)	$ 0	$ 0	0	0	0	0	(6,132)
Shares withheld from employees related to share-based compensation, at cost (in shares)	(583,508)	0	0
Balance at Mar. 31, 2020	$ 127,034	$ 0	$ 0	0	(55,822)	(83)	242,666	313,795
Balance (in shares) at Mar. 31, 2020	24,236,495	144,342,572	0
Balance at Dec. 31, 2019	$ 130,658	$ 0	$ 0	0	(45,823)	(30)	302,519	387,324
Balance (ASC 842 [Member]) at Dec. 31, 2019										$ 0	$ 0	$ 0	$ 0	$ (1,533)	$ 0	$ (7,780)	$ (9,313)
Balance (in shares) at Dec. 31, 2019	23,607,096	144,342,572	0
Balance (in shares) (ASC 842 [Member]) at Dec. 31, 2019										0	0	0
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net (loss) income								(226,574)
Balance at Jun. 30, 2020	$ 335,503	$ 0	$ 0	0	(193,247)	352	7,070	(149,678)
Balance (in shares) at Jun. 30, 2020	168,587,346	0	0
Balance at Mar. 31, 2020	$ 127,034	$ 0	$ 0	0	(55,822)	(83)	242,666	313,795
Balance (in shares) at Mar. 31, 2020	24,236,495	144,342,572	0
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net (loss) income	$ 0	$ 0	$ 0	0	(137,425)	0	(29,094)	(166,519)
Other comprehensive loss	0	0	0	0	0	435	85	520
Share-based compensation expense	1,922	0	0	0	0	0	0	1,922
Issuance of shares for vested RSUs	$ 0	$ 0	$ 0	0	0	0	0	0
Issuance of shares for vested RSUs (in shares)	11,529	0	0
Shares withheld from employees related to share-based compensation, at cost	$ (40)	$ 0	$ 0	0	0	0	0	(40)
Shares withheld from employees related to share-based compensation, at cost (in shares)	(3,250)	0	0
Exchange of NFI Units	$ 206,587	$ 0	$ 0	0	0	0	(206,587)	0
Exchange of NFI Units (in shares)	144,342,572	(144,342,572)	0
Balance at Jun. 30, 2020	$ 335,503	$ 0	$ 0	0	(193,247)	352	7,070	(149,678)
Balance (in shares) at Jun. 30, 2020	168,587,346	0	0
Balance at Dec. 31, 2020	$ 0	$ 0	$ 1,746	594,534	(229,503)	182	8,127	375,086
Balance (in shares) at Dec. 31, 2020	0	0	174,622,862
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net (loss) income	$ 0	$ 0	$ 0	0	(37,903)	0	(1,606)	(39,509)
Other comprehensive loss			0	0	0	(123)	(874)	(997)
Share-based compensation expense			0	1,770	0	0	0	1,770
Issuance of shares for vested RSUs	$ 0	$ 0	$ 0	0				0
Issuance of shares for vested RSUs (in shares)	0	0	1,335,787
Shares withheld from employees related to share-based compensation, at cost	$ 0	$ 0	$ 0	(27,571)	0	0	0	(27,571)
Shares withheld from employees related to share-based compensation, at cost (in shares)	0	0	(638,235)
Dividends	$ 0	$ 0	$ 0	(17,598)	0	0	0	(17,598)	$ (17,598)
Balance at Mar. 31, 2021	$ 0	$ 0	$ 1,746	551,135	(267,406)	59	5,647	291,181
Balance (in shares) at Mar. 31, 2021	0	0	175,320,414
Balance at Dec. 31, 2020	$ 0	$ 0	$ 1,746	594,534	(229,503)	182	8,127	375,086
Balance (in shares) at Dec. 31, 2020	0	0	174,622,862
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net (loss) income								(41,243)
Balance at Jun. 30, 2021	$ 0	$ 0	$ 2,060	1,932,318	(273,450)	101,422	239,569	2,001,919
Balance (in shares) at Jun. 30, 2021	0	0	206,698,564
Balance at Mar. 31, 2021	$ 0	$ 0	$ 1,746	551,135	(267,406)	59	5,647	291,181
Balance (in shares) at Mar. 31, 2021	0	0	175,320,414
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net (loss) income	$ 0	$ 0	$ 0	0	(6,044)	0	4,310	(1,734)
Other comprehensive loss	0	0	0	0	0	101,363	327	101,690
Share-based compensation expense	0	0	0	1,613	0	0	0	1,613
Shares issued as consideration in business combinations	$ 0	$ 0	$ 314	1,400,470	0	0	0	1,400,784
Shares issued as consideration in business combinations (in shares)	0	0	31,372,549
Issuance of shares for vested RSUs	$ 0	$ 0	$ 0	0	0	0	0	0
Issuance of shares for vested RSUs (in shares)	0	0	8,930
Shares withheld from employees related to share-based compensation, at cost	$ 0	$ 0	$ 0	(164)	0	0	0	(164)
Shares withheld from employees related to share-based compensation, at cost (in shares)	0	0	(3,329)
Non-controlling interest acquired in business combinations							229,285	229,285
Dividends	$ 0	$ 0	$ 0	(20,736)	0	0	0	(20,736)	$ (20,736)
Balance at Jun. 30, 2021	$ 0	$ 0	$ 2,060	$ 1,932,318	$ (273,450)	$ 101,422	$ 239,569	$ 2,001,919
Balance (in shares) at Jun. 30, 2021	0	0	206,698,564