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Debt Obligations, net (Schedule of Debt) (Details) - USD ($) $ / shares in Units, $ in Thousands | 1 Months Ended | 12 Months Ended |
--- | --- | --- | ---
Sep. 30, 2019 | Dec. 31, 2021 | Dec. 31, 2020 | Dec. 31, 2019 | Dec. 31, 2018
Debt Instrument [Line Items] |  |  |  |  |
Total debt obligations |  | $ 2,604,375 | $ 2,604,375 |  |
Debt discounts and deferred financing costs, net |  | (32,201) | (35,095) |  |
Total debt obligations, net |  | 2,572,174 | 2,569,280 |  |
Stockholders' equity |  | 1,063,206 | 1,064,383 | $ 1,237,960 | $ 1,064,115
Interest costs capitalized |  | $ 1,000 | 1,400 | 7,400 |
Period of Adoption, Adjustment |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |
Stockholders' equity |  |  | (10,019) | (12,382) |
Period of Adoption, Adjustment | ASU 2020-06 |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |
Debt discounts and deferred financing costs, net |  |  | 10,000 |  |
Total debt obligations, net |  |  | 10,000 |  |
Stockholders' equity |  |  | 10,000 |  |
Senior Term Loan | LIBOR |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |
Basis point spread on variable interest rate |  | 1.00% |  |  |
3.125% Senior Convertible Notes |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |
Stated interest rate |  | 3.125% |  |  |
Secured Debt |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |
Total debt obligations |  | $ 491,875 | 491,875 |  |
Debt discounts and deferred financing costs, net |  | (1,597) |  |  |
Total debt obligations, net |  | 490,278 |  |  |
Assets served as collateral |  | $ 900,000 |  |  |
Secured Debt | Revolving Credit Facility | LIBOR |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |
Basis point spread on variable interest rate |  | 2.00% |  |  |
Debt instrument term |  | 1 year |  |  |
Secured Debt | Revolving Credit Facility | LIBOR | Minimum |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |
Basis point spread on variable interest rate | 2.00% | 1.00% |  |  |
Secured Debt | Revolving Credit Facility | LIBOR | Minimum | Interest Rate Category Two |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |
Basis point spread on variable interest rate |  | 2.00% |  |  |
Secured Debt | Revolving Credit Facility | LIBOR | Maximum |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |
Basis point spread on variable interest rate | 2.50% |  |  |  |
Secured Debt | Revolving Credit Facility | LIBOR | Maximum | Interest Rate Category Two |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |
Basis point spread on variable interest rate |  | 2.50% |  |  |
Secured Debt | Revolving Credit Facility | Federal Funds Rate |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |
Basis point spread on variable interest rate |  | 0.50% |  |  |
Secured Debt | Revolving Credit Facility | Base Rate | Minimum |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |
Basis point spread on variable interest rate | 1.00% |  |  |  |
Secured Debt | Revolving Credit Facility | Base Rate | Minimum | Interest Rate Category One |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |
Basis point spread on variable interest rate |  | 1.00% |  |  |
Secured Debt | Revolving Credit Facility | Base Rate | Maximum |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |
Basis point spread on variable interest rate | 1.50% |  |  |  |
Secured Debt | Revolving Credit Facility | Base Rate | Maximum | Interest Rate Category One |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |
Basis point spread on variable interest rate |  | 1.50% |  |  |
Secured Debt | Senior Term Loan |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |
Total debt obligations |  | $ 491,875 | 491,875 |  |
Secured Debt | Senior Term Loan | LIBOR |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |
Basis point spread on variable interest rate |  | 2.75% |  |  |
Secured Debt | Senior Term Loan | LIBOR | Interest Rate Category One |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |
Basis point spread on variable interest rate |  | 1.75% |  |  |
Secured Debt | Senior Term Loan | LIBOR | Interest Rate Category Two |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |
Basis point spread on variable interest rate |  | 2.75% |  |  |
Secured Debt | Senior Term Loan | Federal Funds Rate |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |
Basis point spread on variable interest rate |  | 0.50% |  |  |
Unsecured notes |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |
Total debt obligations |  | $ 2,012,500 | 2,012,500 |  |
Unsecured notes | 3.125% Senior Convertible Notes |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |
Total debt obligations |  | 287,500 | $ 287,500 |  |
Total debt obligations, net |  | $ 275,100 |  |  |
Stated interest rate |  | 3.125% | 3.125% |  |
Convertible debt, conversion ratio (in shares per par value) |  | 0.0719478 |  |  |
Convertible debt, conversion price (in dollars per share) |  | $ 13.90 |  |  |
Unamortized discount |  | $ 10,200 |  |  |
Contractual interest |  | 9,000 | $ 9,000 | 9,000 |
Amortization of debt discount |  |  | $ 5,200 | $ 5,000 |
Effective interest rate |  |  | 5.20% | 5.20% |
Unsecured notes | 4.75% Senior Notes |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |
Total debt obligations |  | $ 775,000 | $ 775,000 |  |
Stated interest rate |  | 4.75% |  |  |
Unsecured notes | 4.25% Senior Notes |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |
Total debt obligations |  | $ 550,000 | 550,000 |  |
Stated interest rate |  | 4.25% |  |  |
Unsecured notes | 5.50% Senior Notes |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |
Total debt obligations |  | $ 400,000 | 400,000 |  |
Stated interest rate |  | 5.50% |  |  |
Other Debt Obligations | Trust Preferred Securities |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |
Total debt obligations |  | $ 100,000 | $ 100,000 |  |
Other Debt Obligations | Trust Preferred Securities | LIBOR |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |
Basis point spread on variable interest rate |  | 1.50% |  |  |

X
- Definition Amount of noncash expense included in interest expense to amortize debt discount and premium associated with the related debt instruments. Excludes amortization of financing costs. Alternate captions include noncash interest expense. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 835 -SubTopic 30 -Section 45 -Paragraph 1A -URI http://asc.fasb.org/extlink&oid=124435984&loc=d3e28541-108399 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 470 -SubTopic 20 -Section 50 -Paragraph 1F -Subparagraph (b)(2) -URI http://asc.fasb.org/extlink&oid=123466505&loc=SL123495355-112611 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=123570139&loc=d3e3602-108585 Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03.8) -URI http://asc.fasb.org/extlink&oid=123367319&loc=SL114868664-224227 + Details
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- Definition 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. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 470 -SubTopic 20 -Section 50 -Paragraph 4 -Subparagraph (b)(1) -URI http://asc.fasb.org/extlink&oid=123466204&loc=SL6031897-161870 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-03(16)) -URI http://asc.fasb.org/extlink&oid=120400017&loc=d3e572229-122910 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(22)) -URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682 Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03(16)) -URI http://asc.fasb.org/extlink&oid=120398452&loc=d3e534808-122878 + Details
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- Definition Period of time between issuance and maturity of debt instrument, in PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. + References No definition available. + Details
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- Definition Amount, after accumulated amortization, of debt discount. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 835 -SubTopic 30 -Section 45 -Paragraph 1A -URI http://asc.fasb.org/extlink&oid=124435984&loc=d3e28541-108399 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 835 -SubTopic 30 -Section 55 -Paragraph 8 -URI http://asc.fasb.org/extlink&oid=114775985&loc=d3e28878-108400 Reference 3: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 470 -SubTopic 20 -Section 50 -Paragraph 1D -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=123466505&loc=SL123495340-112611 + Details
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