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Debt Obligations, net (Unsecured Notes Narrative) (Details) - USD ($) $ in Thousands | 1 Months Ended | 2 Months Ended | 12 Months Ended |
--- | --- | --- | --- | ---
Sep. 30, 2022 | Jun. 30, 2022 | Apr. 30, 2022 | Sep. 30, 2022 | Aug. 31, 2022 | Dec. 31, 2022 | Dec. 31, 2020 | Dec. 31, 2021
Debt Instrument [Line Items] |  |  |  |  |  |  |  |
Loss (gain) on early extinguishment of debt |  |  |  |  |  | $ 131,200 | $ 12,038 |
3.125% Senior Convertible Notes |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |
Stated interest rate |  |  |  |  |  |  | 3.125% | 3.125%
Unsecured notes | Minimum |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |
Percentage of principal amount of consenting notes paid as consent fees to note holders |  |  |  |  |  | 0.75% |  |
Unsecured notes | Maximum |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |
Percentage of principal amount of consenting notes paid as consent fees to note holders |  |  |  |  |  | 1.00% |  |
Unsecured notes | 3.125% Senior Convertible Notes |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |
Aggregate principal of debt converted and retired | $ 11,700 |  | $ 194,000 |  | $ 80,900 |  |  |
Stated interest rate | 3.125% |  | 3.125% | 3.125% | 3.125% | 3.125% | 3.125% | 3.125%
Common shares issued in in conversion of convertible notes | 92,011 |  | 13,750,000 |  | 3,300,000 |  |  |
Payments to debt holders in conjunction with the conversion and retirement of debt | $ 11,700 |  | $ 14,000 |  | $ 43,600 |  |  |
Principal amount of notes repurchased | $ 500 |  |  | $ 500 |  |  |  |
Net increase in shareholders equity on conversion of convertible notes |  |  | 180,600 |  | 38,200 |  |  |
Loss (gain) on early extinguishment of debt |  |  | $ 118,100 |  | 12,100 |  |  |
Unsecured notes | 4.75% Senior Notes |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |
Stated interest rate |  |  | 4.75% |  |  | 4.75% |  | 4.75%
Principal amount of notes repurchased |  |  | $ 7,100 |  | 14,400 |  |  |
Payments for repurchase of notes |  |  | 7,200 |  | 14,500 |  |  |
Loss (gain) on early extinguishment of debt |  |  | $ 200 |  | $ 300 |  |  |
Unsecured notes | 4.25% Senior Notes |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |
Stated interest rate | 4.25% |  |  | 4.25% |  | 4.25% |  | 4.25%
Principal amount of notes repurchased | $ 48,000 |  |  | $ 48,000 |  |  |  |
Payments for repurchase of notes | $ 48,100 |  |  | 48,100 |  |  |  |
Loss (gain) on early extinguishment of debt |  |  |  | $ 700 |  |  |  |
Unsecured notes | 5.50% Senior Notes |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |
Stated interest rate |  | 5.50% |  |  |  | 5.50% |  | 5.50%
Principal amount of notes repurchased |  | $ 53,100 |  |  |  |  |  |
Payments for repurchase of notes |  | 50,600 |  |  |  |  |  |
Loss (gain) on early extinguishment of debt |  | $ (1,700) |  |  |  |  |  |

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