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Debt - Components (Details) - USD ($) | Jun. 30, 2020 | May 12, 2020 | Dec. 31, 2019
--- | --- | --- | ---
Debt Instrument [Line Items] |  |  |
Fair value of embedded derivative | $ 3,800,000 | $ 4,600,000 |
Term Loan | Secured Debt |  |  |
Debt Instrument [Line Items] |  |  |
Principal amount |  |  | $ 47,500,000
Unamortized debt discount and debt issuance costs |  |  | (962,000)
Net carrying amount |  |  | 46,538,000
2025 Notes | Convertible Debt |  |  |
Debt Instrument [Line Items] |  |  |
Principal amount | 180,375,000 | 180,400,000 |
Fair value of embedded derivative | 3,756,000 |  |
Unamortized debt discount | (4,458,000) |  |
Unamortized issuance costs | (3,502,000) |  |
Net carrying amount | 176,171,000 |  |
2022 Notes | Convertible Debt |  |  |
Debt Instrument [Line Items] |  |  |
Principal amount | 2,000 | $ 45,000,000.0 | 105,125,000
Unamortized debt discount and debt issuance costs | 0 |  | (3,791,000)
Net carrying amount | $ 2,000 |  | $ 101,334,000

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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=109500613&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=119400593&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=6877327&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=6876686&loc=d3e534808-122878 + 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=114775744&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 + Details
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