Shareholders' and Members' Equity - Narrative (Details)				12 Months Ended
	Apr. 23, 2019 shares	May 08, 2015 vote $ / shares shares	Apr. 05, 2013 vote $ / shares shares	Dec. 31, 2019 vote $ / shares shares	Dec. 31, 2018 USD ($) class shares	Dec. 31, 2017 USD ($) shares	Apr. 17, 2019 $ / shares	Dec. 31, 2014 shares
Class A Common Stock
Class of Stock [Line Items]
Common stock outstanding (in shares)				34,040,934
Number of votes per share (vote) | vote				1
Share price (in dollars per share) | $ / shares							$ 18.00
Class B Common Stock
Class of Stock [Line Items]
Common stock outstanding (in shares)				22,847,045
Number of votes per share (vote) | vote				1
Series A Common Units
Class of Stock [Line Items]
Number of votes per share (vote) | vote			1
Units subscriptions issued (in shares)			64,840,000
Share price (in dollars per share) | $ / shares			$ 10
Purchase period of units			5 years
Liquidation preference cumulative return in addition to total invested capital (as a percent)			7.00%
Series A-M Units
Class of Stock [Line Items]
Share price (in dollars per share) | $ / shares				$ 10
Sale of stock, number of shares issued (in shares)			160,000	460,000
Units available for issuance (in shares)			300,000
Units issued (in shares)								300,000
Liquidation preference cumulative return in addition to total invested capital (as a percent)			7.00%
Award vesting percentage at grant (as a percent)						100.00%
Series A-Z Units
Class of Stock [Line Items]
Number of votes per share (vote) | vote		1
Units subscriptions issued (in shares)		41,176,471
Share price (in dollars per share) | $ / shares		$ 8.50
Units issued (in shares)					5,411,764	4,352,941
Proceeds from issuance of common limited partners units | $					$ 45,999,995	$ 37,000,002
Liquidation preference cumulative return in addition to total invested capital (as a percent)		7.00%
Performance-Based Restricted Stock Units
Class of Stock [Line Items]
Shares granted during period (in shares)	753,546			753,546
Restricted Incentive Units
Class of Stock [Line Items]
Award vesting percentage at grant (as a percent)					20.00%
Number of classes of restricted units | class					8
Restricted units, shares authorized				120,000
Restricted Incentive Units | Series M Units
Class of Stock [Line Items]
Restricted units, shares authorized					10,000
Shares vested during period (in shares)					30,904	30,080
Restricted Incentive Units | Series M Units, M 1-4
Class of Stock [Line Items]
Shares vested during period (in shares)					7,726	7,520
Restricted Incentive Units | Series Z Units, Z 1-4
Class of Stock [Line Items]
Shares vested during period (in shares)					3,808	2,596
Restricted Incentive Units | Series Z Units
Class of Stock [Line Items]
Shares vested during period (in shares)					15,232	10,386
Restricted Incentive Units | Series M Units, M-1
Class of Stock [Line Items]
Restricted units, threshold value | $					$ 0.00
Restricted Incentive Units | Series M Units, M-2
Class of Stock [Line Items]
Restricted units, threshold value | $					2.25
Restricted Incentive Units | Series M Units, M-3
Class of Stock [Line Items]
Restricted units, threshold value | $					6.50
Restricted Incentive Units | Series M Units, M-4
Class of Stock [Line Items]
Restricted units, threshold value | $					14.00
Restricted Incentive Units | Series Z Units, Z-1
Class of Stock [Line Items]
Restricted units, threshold value | $					0.00
Restricted Incentive Units | Series Z Units, Z-2
Class of Stock [Line Items]
Restricted units, threshold value | $					1.91
Restricted Incentive Units | Series Z Units, Z-3
Class of Stock [Line Items]
Restricted units, threshold value | $					5.53
Restricted Incentive Units | Series Z Units, Z-4
Class of Stock [Line Items]
Restricted units, threshold value | $					$ 11.90