Condensed Consolidated Statements of Stockholders' Equity (unaudited) - USD ($) $ in Thousands	Total	Common Stock	Additional Paid-In Capital	Accumulated Deficit	Accumulated Other Comprehensive Income (Loss)
Common stock, balance at beginning of period (in shares) at Dec. 31, 2019		208,116,104
Balance at beginning of period at Dec. 31, 2019	$ 121,142	$ 208	$ 459,573	$ (338,611)	$ (28)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	13,040			13,040
Capital contributions	1,083		1,083
Stock-based compensation	1,379		1,379
Compensatory units repurchased	(732)		(732)
Other comprehensive income (loss)	98				98
Common stock, balance at end of period (in shares) at Mar. 31, 2020		208,116,104
Balance at end of period at Mar. 31, 2020	136,010	$ 208	461,303	(325,571)	70
Common stock, balance at beginning of period (in shares) at Dec. 31, 2019		208,116,104
Balance at beginning of period at Dec. 31, 2019	121,142	$ 208	459,573	(338,611)	(28)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	47,919
Reclassification of liability awards to equity upon modification	0
Other comprehensive income (loss)	65
Common stock, balance at end of period (in shares) at Jun. 30, 2020		208,116,104
Balance at end of period at Jun. 30, 2020	170,057	$ 208	460,504	(290,692)	37
Common stock, balance at beginning of period (in shares) at Mar. 31, 2020		208,116,104
Balance at beginning of period at Mar. 31, 2020	136,010	$ 208	461,303	(325,571)	70
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	34,879			34,879
Capital contributions	4		4
Stock-based compensation	827		827
Compensatory units repurchased	(1,630)		(1,630)
Other comprehensive income (loss)	(33)				(33)
Common stock, balance at end of period (in shares) at Jun. 30, 2020		208,116,104
Balance at end of period at Jun. 30, 2020	170,057	$ 208	460,504	(290,692)	37
Common stock, balance at beginning of period (in shares) at Dec. 31, 2020		208,116,104
Balance at beginning of period at Dec. 31, 2020	228,925	$ 208	412,741	(184,033)	9
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	49,418			49,418
Capital contributions	200		200
Initial public offering, net of offering costs (in shares)		13,250,000
Initial public offering, net of offering costs	242,668	$ 13	242,655
Repurchase upon corporate reorganization (in shares)		(524)
Repurchase upon Corporate Reorganization	(10)		(10)
Reclassification of liability awards to equity upon modification	10,784		10,784
Stock-based compensation	6,635		6,635
Compensatory units repurchased	(160)		(160)
Other comprehensive income (loss)	(13)				(13)
Common stock, balance at end of period (in shares) at Mar. 31, 2021		221,365,580
Balance at end of period at Mar. 31, 2021	538,447	$ 221	672,845	(134,615)	(4)
Common stock, balance at beginning of period (in shares) at Dec. 31, 2020		208,116,104
Balance at beginning of period at Dec. 31, 2020	228,925	$ 208	412,741	(184,033)	9
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	98,544
Reclassification of liability awards to equity upon modification	10,784
Other comprehensive income (loss)	(9)
Common stock, balance at end of period (in shares) at Jun. 30, 2021		222,253,059
Balance at end of period at Jun. 30, 2021	613,612	$ 222	698,879	(85,489)	0
Common stock, balance at beginning of period (in shares) at Mar. 31, 2021		221,365,580
Balance at beginning of period at Mar. 31, 2021	538,447	$ 221	672,845	(134,615)	(4)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	49,126			49,126
Initial public offering, net of offering costs (in shares)		968,815
Initial public offering, net of offering costs	18,020	$ 1	18,019
Stock-based compensation	8,015		8,015
Other comprehensive income (loss)	4				4
Issuance of common stock upon vesting of restricted stock units (in shares)		64,566
Issuance of common stock upon vesting of restricted stock units	0
Forfeiture of unvested common stock (in shares)		(145,902)
Forfeiture of unvested common stock	0
Common stock, balance at end of period (in shares) at Jun. 30, 2021		222,253,059
Balance at end of period at Jun. 30, 2021	$ 613,612	$ 222	$ 698,879	$ (85,489)	$ 0