Unaudited Condensed Consolidated Statements of Changes in Shareholders' Equity - USD ($) $ in Millions	Total	Additional Paid-In Capital	Accumulated Earnings (Deficit)	Accumulated Other Comprehensive Income	Class A	Class C
Beginning Balance at Dec. 31, 2020	$ 522.9	$ 564.7	$ (52.5)	$ 10.7
Beginning Balance (shares) at Dec. 31, 2020					69,005,059	6,511,293
Stock-based awards vested and distributed	(1.7)	(1.7)
Stock-based awards vested and distributed (shares)					332,718
Issue Director shares					5,584
Amortization of restricted stock units	2.7	2.7
Net income (loss)	6.3		6.3		$ 5.8	$ 0.5
Other comprehensive income (loss)	(6.4)			(6.4)
Ending Balance at Mar. 31, 2021	523.8	565.7	(46.2)	4.3
Ending Balance (shares) at Mar. 31, 2021					69,343,361	6,511,293
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
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 income (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