Debt Obligations - Senior Unsecured Notes, Summary (Details) - USD ($) $ in Thousands	1 Months Ended	9 Months Ended
Oct. 31, 2021	Sep. 30, 2022	Dec. 31, 2021
Debt Obligations
Weighted average rate (as a percent)		5.27%
Redemption of aggregate principal amount (as a percent)		100.00%
Senior Notes
Debt Obligations
Debt, Face Value (UPB)		$ 1,295,750	$ 1,295,750
Carrying value		$ 1,283,527	$ 1,280,545
Weighted average rate (as a percent)		5.05%	5.05%
Deferred financing fees		$ 12,200	$ 15,200
Weighted average note rate including certain fees and costs (as a percent)		5.34%	5.34%
5.00% Convertible notes
Debt Obligations
Debt, Face Value (UPB)		$ 180,000	$ 180,000
Carrying value		$ 177,344	$ 177,105
Weighted average rate (as a percent)		5.00%	5.00%
Interest rate (as a percent)		5.00%
5.00% Convertible Notes
Debt Obligations
Debt, Face Value (UPB)		$ 175,000	$ 175,000
Carrying value		$ 172,761	$ 172,302
Weighted average rate (as a percent)		5.00%	5.00%
Interest rate (as a percent)		5.00%
8.00% Convertible Notes
Debt Obligations
Debt, Face Value (UPB)		$ 70,750	$ 70,750
Carrying value		$ 70,510	$ 70,202
Weighted average rate (as a percent)		8.00%	8.00%
Interest rate (as a percent)		8.00%
4.50% Convertible Notes
Debt Obligations
Debt, Face Value (UPB)		$ 270,000	$ 270,000
Carrying value		$ 266,718	$ 266,090
Weighted average rate (as a percent)		4.50%	4.50%
Interest rate (as a percent)		4.50%
4.50% Senior Unsecured Notes
Debt Obligations
Debt, Face Value (UPB)		$ 275,000	$ 275,000
Carrying value		$ 272,839	$ 272,477
Weighted average rate (as a percent)		4.50%	4.50%
4.75% Notes
Debt Obligations
Debt, Face Value (UPB)		$ 110,000	$ 110,000
Carrying value		$ 109,281	$ 109,018
Weighted average rate (as a percent)		4.75%	4.75%
Interest rate (as a percent)		4.75%
8.50% Notes
Debt Obligations
Carrying value	$ 150,000
Interest rate (as a percent)	8.50%
Proceeds from issuance of unsecured notes	$ 147,500
5.75% Convertible Notes
Debt Obligations
Debt, Face Value (UPB)		$ 90,000	$ 90,000
Carrying value		$ 89,417	$ 89,135
Weighted average rate (as a percent)		5.75%	5.75%
Interest rate (as a percent)		5.75%
5.625% Notes
Debt Obligations
Debt, Face Value (UPB)		$ 125,000	$ 125,000
Carrying value		$ 124,657	$ 124,216
Weighted average rate (as a percent)		5.63%	5.63%
Interest rate (as a percent)	5.625%	5.625%
Amount utilized to repurchase a portion of unsecured notes	$ 47,500

The cash outflow of amount used from proceeds of unsecured notes in purchase of another unsecured notes.

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Represents the calculation as of the balance sheet date of the average interest rate weighted by the amount of debt outstanding, including certain fees and costs.

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Amount, before unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but is not limited to, notes payable, bonds payable, commercial loans, mortgage loans, convertible debt, subordinated debt and other types of debt.

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Face (par) amount of debt instrument at time of issuance.

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- Definition

Contractual interest rate for funds borrowed, under the debt agreement.

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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Percentage of principal amount of debt redeemed.

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Weighted average interest rate of debt outstanding.

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No definition available.

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Amount, after accumulated amortization, of debt issuance costs. Includes, but is not limited to, legal, accounting, underwriting, printing, and registration costs.

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The cash inflow from the issuance of long-term debt that is not secured by collateral. Excludes proceeds from tax exempt unsecured debt.

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