Stock-based Incentive Compensation Plan - Additional Information (Details) - USD ($) $ / shares in Units, $ in Millions				3 Months Ended			6 Months Ended
	Jun. 09, 2022	Jun. 08, 2022	Feb. 16, 2022	Jun. 30, 2022	Mar. 31, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Restricted Stock
Defined Contribution Plan Disclosure [Line Items]
Grants in period (in shares)				36,788	105,912		142,700
Granted, weighted average grant date fair value (in dollars per share)				$ 28.95	$ 33.98		$ 32.68
Award vesting period				3 years
Restricted Stock | Class A Common Stock
Defined Contribution Plan Disclosure [Line Items]
Share-based compensation expense				$ 0.8		$ 0.9	$ 1.6	$ 1.4
Nonvested awards, compensation not yet recognized				$ 5.0			$ 5.0
Nonvested awards, period of recognition							1 year 8 months 12 days
RSUs
Defined Contribution Plan Disclosure [Line Items]
Grants in period (in shares)			29,414				51,839
Granted, weighted average grant date fair value (in dollars per share)			$ 33.98				$ 31.82
RSUs | Executive
Defined Contribution Plan Disclosure [Line Items]
Grants in period (in shares)		5,175
Granted, weighted average grant date fair value (in dollars per share)		$ 28.98
Award vesting period		3 years
RSUs | Executive | LTI Plan
Defined Contribution Plan Disclosure [Line Items]
Grants in period (in shares)			26,414
RSUs | Executive | 2018 Equity Plan
Defined Contribution Plan Disclosure [Line Items]
Grants in period (in shares)			3,000
RSUs | Director
Defined Contribution Plan Disclosure [Line Items]
Grants in period (in shares)	17,250
Granted, weighted average grant date fair value (in dollars per share)	$ 28.98
Award vesting period	1 year
PSUs
Defined Contribution Plan Disclosure [Line Items]
Grants in period (in shares)			26,415
Granted, weighted average grant date fair value (in dollars per share)			$ 33.63
Award vesting period			3 years