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Long-term Debt - Repurchase of Outstanding Debt (Details) - USD ($) $ in Thousands |  | 3 Months Ended | 6 Months Ended | 30 Months Ended
--- | --- | --- | --- | ---
Mar. 19, 2021 | Jun. 30, 2021 | Jun. 30, 2020 | Jun. 30, 2021 | Jun. 30, 2020 | Jun. 30, 2021
Debt Instrument [Line Items] |  |  |  |  |  |
Cash Paid |  |  |  | $ 125,952 | $ 10,595 |
Non-cash Gain Recognized |  |  |  | 4,022 | 4,779 |
2023 Notes |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Principal Amount |  | $ 6,400 | $ 11,981 | 131,400 | 17,681 | $ 174,000
Carrying Value of Liability |  | 6,337 | 10,637 | 129,974 | 15,374 |
Cash Paid | $ 120,000 | 5,952 | 5,858 | 125,952 | 10,595 | $ 152,800
Non-cash Gain Recognized |  | $ 385 | $ 4,779 | $ 4,022 | $ 4,779 |

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- Definition Debt Instrument, Amount Repurchased + References No definition available. + Details
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- Definition Debt Instrument, Principal Amount Repurchased + References No definition available. + Details
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- Definition 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. + References No definition available. + Details
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- Definition Difference between the fair value of payments made and the carrying amount of debt which is extinguished prior to maturity. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 470 -SubTopic 50 -Section 40 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=123467658&loc=d3e12355-112629 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 470 -SubTopic 50 -Section 40 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=123467658&loc=d3e12317-112629 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 + Details
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- Definition The cash outflow from the repayment of a long-term debt instrument which can be exchanged for a specified amount of another security, typically the entity's common stock, at the option of the issuer or the holder. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 15 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=123570139&loc=d3e3291-108585 + Details
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