Common Stock (Details) - USD ($) $ in Millions			3 Months Ended		6 Months Ended
	Mar. 18, 2021	Jan. 07, 2021	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020	Dec. 31, 2020
Member Units | Bold Contribution Agreement
Capital Unit [Line Items]
Stock conversion (in shares)					1
Class A Common Stock
Capital Unit [Line Items]
Common stock, shares issued (in shares)			44,293,062		44,293,062		30,343,421
Common stock, shares outstanding (in shares)			44,293,062		44,293,062		30,343,421
Class A Common Stock | Bold Contribution Agreement
Capital Unit [Line Items]
Stock conversion (in shares)					1
Class A Common Stock | 2014 Plan
Capital Unit [Line Items]
Common shares issued during period under stock plan (in shares)	455,000		221,401	223,209	487,660	530,738
Common stock repurchased (in shares)	178,453		66,343	57,810	145,654	133,505
Class B Common Stock
Capital Unit [Line Items]
Common stock, shares issued (in shares)			34,397,877		34,397,877		35,009,371
Common stock, shares outstanding (in shares)			34,397,877		34,397,877		35,009,371
EEH units and class B common stock converted to class A common stock (in shares)			33,463	2,000	611,494	201,993
IRM Acquisition | Class A Common Stock | 2014 Plan
Capital Unit [Line Items]
Common shares issued during period under stock plan (in shares)		12,719,594
Amount of equity issued		$ 76.6