Condensed Consolidated Statements of Stockholders' Equity - USD ($) $ in Millions		Total		Common Stock	APIC	[1]	Retained Earnings		AOCI	[2]
Beginning Balance at Dec. 31, 2020		$ 1,544.8		$ 0.7	$ 1,109.8		$ 463.5		$ (29.2)
Balance (in shares) at Dec. 31, 2020				69,400,000
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss)		(6.3)
Ending Balance at Mar. 31, 2021		1,553.3		$ 0.7	1,126.2		451.2		(24.8)
Balance (in shares) at Mar. 31, 2021				69,800,000
Beginning Balance at Dec. 31, 2020		$ 1,544.8		$ 0.7	1,109.8		463.5		(29.2)
Balance (in shares) at Dec. 31, 2020				69,400,000
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Repurchase and retirement of common stock net ( in shares)		0
Issuance of common stock, net of shares withheld for taxes		$ 16.0			16.0
Issuance of common stock, net of shares withheld for taxes ( in shares)				600,000
Stock-based compensation		12.7			12.7
Other comprehensive income (loss)		6.7							6.7
Net income (loss)		70.2					70.2
Dividends on Preferred Stock		(12.0)					(12.0)
Ending Balance at Jun. 30, 2021		1,638.4		$ 0.7	1,138.5		521.7		(22.5)
Balance (in shares) at Jun. 30, 2021				70,000,000.0
Beginning Balance at Mar. 31, 2021		1,553.3		$ 0.7	1,126.2		451.2		(24.8)
Balance (in shares) at Mar. 31, 2021				69,800,000
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Issuance of common stock, net of shares withheld for taxes		6.9			6.9
Issuance of common stock, net of shares withheld for taxes ( in shares)				200,000
Stock-based compensation		5.4			5.4
Other comprehensive income (loss)		2.3							2.3
Net income (loss)		76.5					76.5
Dividends on Preferred Stock		(6.0)					(6.0)
Ending Balance at Jun. 30, 2021		1,638.4		$ 0.7	1,138.5		521.7		(22.5)
Balance (in shares) at Jun. 30, 2021				70,000,000.0
Beginning Balance at Dec. 31, 2021		1,812.4		$ 0.7	1,148.6		682.5		(19.4)
Balance (in shares) at Dec. 31, 2021				70,400,000
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss)		55.8
Ending Balance at Mar. 31, 2022		1,745.8		$ 0.7	1,135.9		619.3		(10.1)
Balance (in shares) at Mar. 31, 2022				68,700,000
Beginning Balance at Dec. 31, 2021		1,812.4		$ 0.7	1,148.6		682.5		(19.4)
Balance (in shares) at Dec. 31, 2021				70,400,000
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Stock Repurchased and Retired During Period, Value	[3]	(338.1)		$ (0.1)			(338.0)
Repurchase and retirement of common stock net ( in shares)	[3]			(5,800,000)
Equity forward contract	[3]	(50.0)			(50.0)
Issuance of common stock, net of shares withheld for taxes		11.8			11.8
Issuance of common stock, net of shares withheld for taxes ( in shares)				400,000
Stock-based compensation		13.1			13.1
Other comprehensive income (loss)		8.8							8.8
Net income (loss)		230.3					230.3
Dividends on Preferred Stock		(12.0)					(12.0)
Ending Balance at Jun. 30, 2022		1,676.3		$ 0.6	1,123.5		562.8		(10.6)
Balance (in shares) at Jun. 30, 2022				65,000,000.0
Beginning Balance at Mar. 31, 2022		1,745.8		$ 0.7	1,135.9		619.3		(10.1)
Balance (in shares) at Mar. 31, 2022				68,700,000
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Stock Repurchased and Retired During Period, Value		(225.1)	[3]	$ (0.1)			(225.0)	[3]
Repurchase and retirement of common stock net ( in shares)	[3]			(3,900,000)
Equity forward contract		(25.0)	[3]		(25.0)
Issuance of common stock, net of shares withheld for taxes		4.6			4.6
Issuance of common stock, net of shares withheld for taxes ( in shares)				200,000
Stock-based compensation		8.0			8.0
Other comprehensive income (loss)		(0.5)							(0.5)
Net income (loss)		174.5					174.5
Dividends on Preferred Stock		(6.0)					(6.0)
Ending Balance at Jun. 30, 2022		$ 1,676.3		$ 0.6	$ 1,123.5		$ 562.8		$ (10.6)
Balance (in shares) at Jun. 30, 2022				65,000,000.0

[1] Additional Paid-in Capital (“APIC”).

[2] Accumulated Other Comprehensive Income (Loss) ("AOCI").

[3] See Note 8 for additional information.