Earnings per Share - Diluted Earnings Per Share (Details) - USD ($) $ / shares in Units, $ in Thousands		12 Months Ended
		Dec. 31, 2021	Dec. 31, 2020
Diluted Net Income Allocated to:
Total Diluted Net Income Attributable to Shareholders		$ 83,661	$ 40,766
Basic Weighted Average Shares Outstanding (in shares)		17,414,694	17,208,174
Dilutive Effect of B Units (in shares)		55,037,164	54,156,631
Dilutive Effect of Options (in shares)	[1]	1,586,602	12,637
Dilutive Effect of Phantom Class B Units & Phantom Shares of Class A Common Stock (in shares)		2,687,583	1,874,199
Dilutive Effect of Restricted Shares of Class A Common Stock (in shares)	[2]	33,231	12,660
Diluted Weighted Average Common Shares Outstanding (in shares)		76,759,274	73,264,301
Participating Class B Units and Class B-1 Units (in shares)	[3]	7,248,364	5,879,409
Diluted Weighted-Average Shares Outstanding (in shares)	[4]	84,007,638	79,143,710
Diluted Earnings per Share (in dollars per share)		$ 1.00	$ 0.52
Options to Purchase Class B Units
Diluted Net Income Allocated to:
Antidilutive securities excluded from diluted EPS (in shares)		300,000	5,500,000
Options to Purchase Shares of Class A Common Stock
Diluted Net Income Allocated to:
Antidilutive securities excluded from diluted EPS (in shares)		600,000	200,000
Contingent Options to Purchase Shares of Class A Common Stock
Diluted Net Income Allocated to:
Antidilutive securities excluded from diluted EPS (in shares)		500,000	1,000,000.0
Common Class A
Diluted Net Income Allocated to:
Total Diluted Net Income Attributable to Shareholders		$ 76,421	$ 37,732
Basic Weighted Average Shares Outstanding (in shares)		17,394,327	17,196,939
Participating Shares of Restricted Class A Common Stock
Diluted Net Income Allocated to:
Total Diluted Net Income Attributable to Shareholders		$ 22	$ 6
Basic Weighted Average Shares Outstanding (in shares)	[5]	20,367	11,235
Participating Class B Units and Class B-1 Units
Diluted Net Income Allocated to:
Total Diluted Net Income Attributable to Shareholders		$ 7,218	$ 3,028

[1] Represents the dilutive effect of options to purchase Class B units, Delayed Exchange Class B units, and Class A common stock.

[2] Certain restricted shares of Class A common stock granted to employees are not entitled to dividend or dividend equivalent payments until they are vested and are therefore non-participating securities and are not included in the computation of basic earnings per share. They are included in the computation of diluted earnings per share when the effect is dilutive using the treasury stock method.

[3] Unvested Class B Units granted to employees have nonforfeitable rights to dividends and therefore participate fully in the results of the operating company's operations from the date they are granted. Vested and unvested Class B-1 units are entitled to receive distributions for the duration of the holder’s employment with the operating company, will participate in additional value to the extent there has been appreciation subsequent to the issuance of the Class B-1 membership unit. Unvested Class B units and vested and unvested Class B-1 units are included in the computation of diluted earnings per share using the two-class method for participating securities.

[4] The Company issues restricted shares of Class A common stock and the operating company issues restricted Class B units that have non-forfeitable dividend rights. Under the “two-class method,” these shares and units are considered participating securities and are required to be included in the computation of diluted earnings per share.

[5] Certain unvested shares of Class A common stock granted to employees have nonforfeitable rights to dividends and therefore participate fully in the results of the Company from the date they are granted. They are included in the computation of basic earnings per share using the two-class method for participating securities.