Earnings (Loss) per Share - Schedule of Earnings Per Share Basic and Diluted (Details) - USD ($) $ / shares in Units, $ in Millions	3 Months Ended				6 Months Ended
	Jun. 30, 2024	Mar. 31, 2024	Jun. 30, 2023	Mar. 31, 2023	Jun. 30, 2024	Jun. 30, 2023
Numerator:
Net loss	$ 5.5	$ (8.1)	$ (2.1)	$ (12.4)	$ (2.6)	$ (14.5)
Net income (loss) attributable to common stockholders, basic	5.5		(2.1)		(2.6)	(14.5)
Net income (loss) attributable to common stockholders, diluted	$ 5.5		$ (2.1)		$ (2.6)	$ (14.5)
Denominator:
Basic weighted average common shares outstanding (in shares)	83,071,520		82,432,158		82,876,914	82,285,291
Dilutive effect of potential common shares (in shares)	52,116		0		0	0
Weighted average common shares - outstanding dilutive (in shares)	83,123,636		82,432,158		82,876,914	82,285,291
Two-class method:
Basic loss per share (in usd per share)	$ 0.07		$ (0.03)		$ (0.03)	$ (0.18)
Diluted loss per share (in usd per share)	$ 0.07		$ (0.03)		$ (0.03)	$ (0.18)
Class A common stock
Denominator:
Basic weighted average common shares outstanding (in shares)	80,150,421		79,511,059		79,955,815	79,364,192
Dilutive effect of potential common shares (in shares)	52,116		0		0	0
Weighted average common shares - outstanding dilutive (in shares)	80,202,537		79,511,059		79,955,815	79,364,192
Two-class method:
Basic loss per share (in usd per share)	$ 0.07		$ (0.03)		$ (0.03)	$ (0.18)
Diluted loss per share (in usd per share)	$ 0.07		$ (0.03)		$ (0.03)	$ (0.18)
Proportionate share of net income (loss)	$ 5.3		$ (2.0)		$ (2.5)	$ (14.0)
Class C common stock
Denominator:
Basic weighted average common shares outstanding (in shares)	2,921,099		2,921,099		2,921,099	2,921,099
Weighted average common shares - outstanding dilutive (in shares)	2,921,099		2,921,099		2,921,099	2,921,099
Two-class method:
Basic loss per share (in usd per share)	$ 0.07		$ (0.03)		$ (0.03)	$ (0.17)
Diluted loss per share (in usd per share)	$ 0.07		$ (0.03)		$ (0.03)	$ (0.17)
Proportionate share of net income (loss)	$ 0.2		$ (0.1)		$ (0.1)	$ (0.5)