Subsequent Events (Details)									1 Months Ended						3 Months Ended			12 Months Ended
	Nov. 09, 2022 $ / shares	Oct. 07, 2022 $ / shares shares	Aug. 23, 2022 $ / shares	Jun. 09, 2022 $ / shares shares	May 06, 2022 $ / shares	Jul. 12, 2021	May 26, 2021	Aug. 03, 2020	Feb. 28, 2023 $ / shares	Jan. 31, 2023 $ / shares	Dec. 31, 2022 $ / shares	Nov. 30, 2022 $ / shares	Nov. 03, 2022 USD ($) lender shares	Nov. 03, 2022 USD ($) lender shares	Jan. 31, 2023 $ / shares	Sep. 30, 2022 USD ($) $ / shares shares	Sep. 30, 2021	Jun. 30, 2022 $ / shares shares	Feb. 18, 2022 shares
Subsequent Event [Line Items]
Temporary equity, par value (usd per share)																$ 0.001		$ 0.001
Temporary equity, liquidation preference (usd per share)																$ 25.00		$ 25.00
Temporary equity, shares authorized (in shares) | shares																227,900,000		227,900,000
Revolving Credit Facility | Credit Facility
Subsequent Event [Line Items]
Maximum borrowing capacity | $																$ 1,634,000,000
Subsequent Event
Subsequent Event [Line Items]
Proceeds from issuance of preferred stock, net of underwriting costs | $														$ 147,363,000
Subsequent Event | Revolving Credit Facility | Credit Facility
Subsequent Event [Line Items]
Line of credit increase | $													$ 42,500,000
Maximum borrowing capacity | $													$ 1,676,500,000	$ 1,676,500,000
Number of lenders | lender													48	48
5.50% Preferred Stock
Subsequent Event [Line Items]
Dividend rate				5.50%												5.50%		5.50%
Temporary equity, par value (usd per share)				$ 0.001
Temporary equity, liquidation preference (usd per share)				$ 25.00												$ 25		$ 25
Temporary equity, shares authorized (in shares) | shares				60,000,000															10,000,000
Dividend rate						5.50%	5.50%	5.50%								5.50%	5.50%
Amount ($ per share), before pro ration for partial periods			$ 0.114583		$ 0.114583
5.50% Preferred Stock | Subsequent Event
Subsequent Event [Line Items]
Dividend rate	5.50%
Temporary equity, liquidation preference (usd per share)	$ 25
6.50% Preferred Stock
Subsequent Event [Line Items]
Dividend rate																6.50%
6.50% Preferred Stock | Subsequent Event
Subsequent Event [Line Items]
Dividend rate	6.50%
Temporary equity, liquidation preference (usd per share)	$ 25
6.50% Preferred Stock | Subsequent Event | PCS Offering
Subsequent Event [Line Items]
Temporary equity, shares authorized (in shares) | shares		60,000,000
6.50% Preferred Stock | Subsequent Event | InspereX LLC
Subsequent Event [Line Items]
Temporary equity, shares authorized (in shares) | shares		10,000,000
6.50% Preferred Stock | Subsequent Event | Maximum | PCS Offering
Subsequent Event [Line Items]
Temporary equity, shares authorized (in shares) | shares		60,000,000
6.50% Preferred Stock | Subsequent Event | Maximum | InspereX LLC
Subsequent Event [Line Items]
Temporary equity, shares authorized (in shares) | shares		10,000,000
5.35% Preferred Stock
Subsequent Event [Line Items]
Temporary equity, liquidation preference (usd per share)																$ 25		$ 25
Dividend rate						5.35%
Amount ($ per share), before pro ration for partial periods					$ 0.334375
5.35% Preferred Stock | Subsequent Event
Subsequent Event [Line Items]
Dividend rate	5.35%
Temporary equity, liquidation preference (usd per share)	$ 25.00
Series A1 Preferred Stock
Subsequent Event [Line Items]
Temporary equity, shares authorized (in shares) | shares																60,000,000		60,000,000
Shares issued (in shares) | shares																30,751,961		30,751,961
Series A1 Preferred Stock | Subsequent Event
Subsequent Event [Line Items]
Shares issued (in shares) | shares													453,539	453,539
Series M1 Preferred Stock
Subsequent Event [Line Items]
Temporary equity, shares authorized (in shares) | shares																60,000,000		60,000,000
Shares issued (in shares) | shares																3,925,331		3,925,331
Series M1 Preferred Stock | Subsequent Event
Subsequent Event [Line Items]
Shares issued (in shares) | shares													105,204	105,204
6.50% Series A3 Preferred Stock | Subsequent Event
Subsequent Event [Line Items]
Shares issued (in shares) | shares													5,504,505	5,504,505
6.50% Series A3 Preferred Stock | Subsequent Event | PCS Offering
Subsequent Event [Line Items]
Dividend rate		6.50%
Temporary equity, par value (usd per share)		$ 0.001
Temporary equity, liquidation preference (usd per share)		$ 25.00
6.50% Series M3 Preferred Stock | Subsequent Event
Subsequent Event [Line Items]
Shares issued (in shares) | shares													443,543	443,543
6.50% Series M3 Preferred Stock | Subsequent Event | PCS Offering
Subsequent Event [Line Items]
Dividend rate		6.50%
Temporary equity, par value (usd per share)		$ 0.001
Temporary equity, liquidation preference (usd per share)		$ 25.00
6.50% Series MM2 Preferred Stock | Subsequent Event | InspereX LLC
Subsequent Event [Line Items]
Dividend rate		6.50%
Temporary equity, par value (usd per share)		$ 0.001
Temporary equity, liquidation preference (usd per share)		$ 25.00
6.50% Series AA2 Preferred Stock | Subsequent Event | InspereX LLC
Subsequent Event [Line Items]
Dividend rate		6.50%
Temporary equity, par value (usd per share)		$ 0.001
Temporary equity, liquidation preference (usd per share)		$ 25.00
Preferred Stock | 5.50% Preferred Stock | Forecast
Subsequent Event [Line Items]
Amount ($ per share), before pro ration for partial periods									$ 0.114583	$ 0.114583	$ 0.114583
Preferred Stock | 6.50% Preferred Stock | Forecast
Subsequent Event [Line Items]
Amount ($ per share), before pro ration for partial periods									$ 0.135417	0.135417	0.135417
Preferred Stock | 5.35% Preferred Stock | Forecast
Subsequent Event [Line Items]
Amount ($ per share), before pro ration for partial periods															$ 0.334375
Common Stock | Forecast
Subsequent Event [Line Items]
Common stock, dividends per share (in dollars per share)										$ 0.0600	$ 0.0600	$ 0.0600