Consolidated Statement of Equity - USD ($) $ in Millions	Total	Preferred Stock	Common Stock	Currency Derivative Contracts	Interest Rate Swaps	Preferred Stock	Preferred Stock Preferred Stock	Common Stock	Common Stock Common Stock	Additional Paid-in Capital	Additional Paid-in Capital Common Stock	Retained Earnings	Accumulated Other Comprehensive Loss	Accumulated Other Comprehensive Loss Currency Derivative Contracts	Accumulated Other Comprehensive Loss Interest Rate Swaps	Noncontrolling Interests
Beginning balance outstanding (in shares) at Dec. 31, 2021						300,000		137,955,479
Balance beginning of period at Dec. 31, 2021	$ 1,803.9					$ 295.2		$ 0.0		$ 1,679.6		$ 192.4	$ (389.6)			$ 26.3
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Stock issuance (in shares)						300,000
Stock issuance	298.0					$ 298.0
At-the-market equity offering program costs	(0.4)									(0.4)
Restricted stock grants (RSG) (in shares)								1,221,362
Shares retired due to RSG vesting (in shares)								(796,756)
Shares retired due to RSG vesting	(18.6)									(18.6)
Stock Repurchased and Retired During Period, Value	(12.5)							$ (12.5)		(9.7)		(2.8)
Shares retired due to common stock repurchase program (in shares)								(589,317)
Share-based compensation	14.4									14.4
Other comprehensive income:
Unrealized foreign currency translation gain, net of tax	(88.3)												(85.9)			(2.4)
Unrealized foreign currency translation gain, net of tax				$ 30.1	$ 3.9									$ 30.1	$ 3.9
Common stock dividends	(66.2)											(66.2)
Preferred stock dividends	(13.1)											(13.1)
Net income (loss)	39.1											38.9				0.2
Contributions from noncontrolling interests	1.4															1.4
Distributions to noncontrolling interests	(1.3)															(1.3)
Ending balance outstanding (in shares) at Jun. 30, 2022						600,000		137,790,768
Balance end of period at Jun. 30, 2022	1,990.4					$ 593.2		$ 0.0		1,665.3		149.2	(441.5)			24.2
Beginning balance outstanding (in shares) at Mar. 31, 2022						600,000		137,790,768
Balance beginning of period at Mar. 31, 2022	2,063.2					$ 593.1		$ 0.0		1,658.4		191.6	(405.6)			25.7
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Stock issuance	0.1					$ 0.1
At-the-market equity offering program costs	(0.4)									(0.4)
Share-based compensation	7.3									7.3
Other comprehensive income:
Unrealized foreign currency translation gain, net of tax	(60.3)												(58.6)			(1.7)
Unrealized foreign currency translation gain, net of tax				21.8	$ 0.9									21.8	$ 0.9
Common stock dividends	(33.4)											(33.4)
Preferred stock dividends	(7.8)											(7.8)
Net income (loss)	(0.9)											(1.2)				0.3
Contributions from noncontrolling interests	0.8															0.8
Distributions to noncontrolling interests	(0.9)															(0.9)
Ending balance outstanding (in shares) at Jun. 30, 2022						600,000		137,790,768
Balance end of period at Jun. 30, 2022	1,990.4					$ 593.2		$ 0.0		1,665.3		149.2	(441.5)			24.2
Beginning balance outstanding (in shares) at Dec. 31, 2022						600,000		137,790,768
Balance beginning of period at Dec. 31, 2022	2,010.4					$ 592.5		$ 0.0		1,679.5		122.1	(430.1)			46.4
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Stock issuance (in shares)							200,000		1,690,743
Stock issuance		$ 198.0	$ 30.0				$ 198.0				$ 30.0
Restricted stock grants (RSG) (in shares)								955,756
Shares retired due to RSG vesting (in shares)								(1,046,430)
Shares retired due to RSG vesting	(13.4)									(13.4)
Shares retired due to common stock repurchase program (in shares)								0
Share-based compensation	14.4									14.4
Other comprehensive income:
Unrealized foreign currency translation gain, net of tax	25.8												24.9			0.9
Unrealized foreign currency translation gain, net of tax				5.2										5.2
Common stock dividends	(66.9)											(66.9)
Preferred stock dividends	(16.3)											(16.3)
Net income (loss)	18.6											14.5				4.1
Contributions from noncontrolling interests	0.9															0.9
Distributions to noncontrolling interests	(6.1)															(6.1)
Ending balance outstanding (in shares) at Jun. 30, 2023						800,000		139,390,837
Balance end of period at Jun. 30, 2023	2,200.6					$ 790.5		$ 0.0		1,710.5		53.4	(400.0)			46.2
Beginning balance outstanding (in shares) at Mar. 31, 2023						600,000		139,344,238
Balance beginning of period at Mar. 31, 2023	1,971.4					$ 592.5		$ 0.0		1,702.5		47.9	(418.0)			46.5
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Stock issuance (in shares)							200,000		46,599
Stock issuance		$ 198.0	$ 0.7				$ 198.0				$ 0.7
Share-based compensation	7.3									7.3
Other comprehensive income:
Unrealized foreign currency translation gain, net of tax	11.7												11.6			0.1
Unrealized foreign currency translation gain, net of tax				$ 6.4										$ 6.4
Common stock dividends	(33.5)											(33.5)
Preferred stock dividends	(8.4)											(8.4)
Net income (loss)	47.3											47.4				(0.1)
Contributions from noncontrolling interests	0.8															0.8
Distributions to noncontrolling interests	(1.1)															(1.1)
Ending balance outstanding (in shares) at Jun. 30, 2023						800,000		139,390,837
Balance end of period at Jun. 30, 2023	$ 2,200.6					$ 790.5		$ 0.0		$ 1,710.5		$ 53.4	$ (400.0)			$ 46.2