Unaudited Condensed Consolidated Statements of Changes in Shareholders' Equity - USD ($) $ in Millions	Total	Additional Paid-In Capital	Accumulated Earnings (Deficit)	Accumulated Other Comprehensive Income (Loss)	Class A	Class C
Beginning Balance at Dec. 31, 2021	$ 636.2	$ 688.9	$ (55.3)	$ 2.6
Beginning Balance (Shares) at Dec. 31, 2021					78,482,024	2,921,099
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Stock-based awards vested and distributed	(2.9)	(2.9)
Stock-based awards vested and distributed (shares)					521,719
Issue Director shares					2,495
Amortization of restricted stock units	8.8	8.8
Net loss	(14.1)		(14.1)		$ (13.6)	$ (0.5)
Other comprehensive income (loss)	3.4			3.4
Ending Balance at Mar. 31, 2022	631.4	694.8	(69.4)	6.0
Ending Balance (Shares) at Mar. 31, 2022					79,006,238	2,921,099
Beginning Balance at Dec. 31, 2022	612.8	704.3	(96.7)	5.2
Beginning Balance (Shares) at Dec. 31, 2022					79,086,372	2,921,099
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Stock-based awards vested and distributed	(0.4)	(0.4)
Stock-based awards vested and distributed (shares)					368,153
Issue Director shares					14,084
Amortization of restricted stock units	2.8	2.8
Net loss	(12.4)		(12.4)		$ (12.0)	$ (0.4)
Other comprehensive income (loss)	0.8			0.8
Ending Balance at Mar. 31, 2023	$ 603.6	$ 706.7	$ (109.1)	$ 6.0
Ending Balance (Shares) at Mar. 31, 2023					79,468,609	2,921,099