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v3.21.2

Debt Obligations, Convertible Senior Unsecured Notes (Details) |  |  | 1 Months Ended | 3 Months Ended | 6 Months Ended | 12 Months Ended |  |
--- | --- | --- | --- | --- | --- | --- | --- | ---
Jul. 01, 2021 USD ($) shares | Jul. 20, 2018 | Apr. 30, 2021 USD ($) | Jun. 30, 2021 USD ($) $ / shares | Jun. 30, 2020 USD ($) | Jun. 30, 2021 USD ($) $ / shares shares | Jun. 30, 2020 USD ($) | Dec. 31, 2020 USD ($) | Dec. 31, 2019 USD ($) $ / shares | Mar. 31, 2021 | Jul. 03, 2018
Debt Obligations |  |  |  |  |  |  |  |  |  |  |
Cash paid for the exchange of convertible notes |  |  |  |  |  |  | $ 22,145,000 |  |  |  |
Loss on extinguishment of debt |  |  |  |  | $ (1,592,000) | $ (1,370,000) | (3,546,000) |  |  |  |
Total |  |  |  | $ 6,805,878,000 |  | 6,805,878,000 |  |  |  |  |
Convertible Senior Unsecured Notes |  |  |  |  |  |  |  |  |  |  |
Debt Obligations |  |  |  |  |  |  |  |  |  |  |
Junior subordinated notes |  |  |  | 278,300,000 |  | $ 278,300,000 |  | $ 278,300,000 |  |  |
Proceeds received, net of estimated issuance costs |  |  |  |  |  |  |  |  | $ 34,000,000.0 |  |
Percentage of the Notes required to be repurchased if the agreement is fundamentally changed |  |  |  |  |  | 100.00% |  |  |  |  |
Maturity period (in years) |  |  |  |  |  | 1 year 3 months 7 days |  | 1 year 9 months 7 days |  |  |
Unamortized Debt Discount |  |  |  | 4,031,000 |  | $ 4,031,000 |  | $ 5,636,000 |  |  |
Unamortized Deferred Financing Fees |  |  |  | 3,352,000 |  | 3,352,000 |  | 4,691,000 |  |  |
Total |  |  |  | 270,917,000 |  | 270,917,000 |  | 267,973,000 |  |  |
Net Carrying Value, Equity Component |  |  |  |  |  | 9,962,000 |  | $ 9,962,000 |  |  |
Interest expense |  |  |  | 4,800,000 |  | 9,600,000 | 10,000,000.0 |  |  |  |
Interest expense related to cash coupon |  |  |  | 3,300,000 |  | 6,600,000 | 6,700,000 |  |  |  |
Debt discount |  |  |  | 800,000 |  | 1,600,000 | 1,700,000 |  |  |  |
Deferred fees expensed as interest expense |  |  |  | 700,000 |  | 1,400,000 | 1,600,000 |  |  |  |
Cost of the notes (as a percent) |  |  |  |  |  |  |  | 6.75% |  | 6.75% |
8.00% Convertible Notes |  |  |  |  |  |  |  |  |  |  |
Debt Obligations |  |  |  |  |  |  |  |  |  |  |
Junior subordinated notes |  |  |  | $ 70,750,000 |  | $ 70,750,000 |  | $ 70,750,000 |  |  |
Interest rate (as a percent) |  |  |  | 8.00% |  | 8.00% |  | 8.00% |  |  |
4.50% Convertible Notes |  |  |  |  |  |  |  |  |  |  |
Debt Obligations |  |  |  |  |  |  |  |  |  |  |
Junior subordinated notes |  |  |  | $ 275,000,000 |  | $ 275,000,000 |  | $ 275,000,000 |  |  |
Interest rate (as a percent) |  |  |  | 4.50% |  | 4.50% |  | 4.50% |  |  |
5.25% Convertible Notes |  |  |  |  |  |  |  |  |  |  |
Debt Obligations |  |  |  |  |  |  |  |  |  |  |
Interest rate (as a percent) |  | 5.25% |  |  |  |  |  |  | 5.25% |  | 5.25%
Cash paid for the exchange of convertible notes | $ 14,300,000 |  |  |  |  | $ 233,100,000 |  |  | $ 228,700,000 |  |
Common stock exchanged (in shares) | shares | 386,459 |  |  |  |  | 4,478,315 |  |  |  |  |
4.75% Convertible Notes |  |  |  |  |  |  |  |  |  |  |
Debt Obligations |  |  |  |  |  |  |  |  |  |  |
Junior subordinated notes |  |  |  | $ 1,000 |  | $ 1,000 |  |  | $ 264,000,000.0 |  |
Interest rate (as a percent) |  |  |  | 4.75% |  | 4.75% |  |  | 4.75% |  |
Proceeds received, net of estimated issuance costs |  |  |  |  |  |  |  |  | $ 256,500,000 |  |
Conversion rate of the notes to common stock, per $1,000 principal amount of notes |  |  |  |  |  | 56.5332 |  |  |  |  |
Conversion price per share of common stock | $ / shares |  |  |  | $ 17.69 |  | $ 17.69 |  |  |  |  |
4.75% Convertible Notes | First Offering |  |  |  |  |  |  |  |  |  |  |
Debt Obligations |  |  |  |  |  |  |  |  |  |  |
Junior subordinated notes |  |  |  |  |  |  |  |  | $ 1,000 |  |
Conversion rate of the notes to common stock, per $1,000 principal amount of notes |  |  |  |  |  |  |  |  | 56.1695 |  |
Conversion price per share of common stock | $ / shares |  |  |  |  |  |  |  |  | $ 17.80 |  |
5.75% Convertible Notes |  |  |  |  |  |  |  |  |  |  |
Debt Obligations |  |  |  |  |  |  |  |  |  |  |
Junior subordinated notes |  |  |  | $ 90,000,000 |  | $ 90,000,000 |  | $ 90,000,000 |  |  |
Interest rate (as a percent) |  |  |  | 5.75% |  | 5.75% |  | 5.75% |  |  |
5.00% Convertible Notes |  |  |  |  |  |  |  |  |  |  |
Debt Obligations |  |  |  |  |  |  |  |  |  |  |
Proceeds from issued debt |  |  | $ 172,300,000 |  |  |  |  |  |  |  |
Junior subordinated notes |  |  |  |  |  |  |  |  |  |  |
Debt Obligations |  |  |  |  |  |  |  |  |  |  |
Junior subordinated notes |  |  |  | $ 154,336,000 |  | $ 154,336,000 |  | $ 154,336,000 |  |  |
Deferred fees expensed as interest expense |  |  |  |  |  | 1,800,000 |  | $ 1,800,000 |  |  |
Issued on July 3, 2018 | 5.25% Convertible Notes |  |  |  |  |  |  |  |  |  |  |
Debt Obligations |  |  |  |  |  |  |  |  |  |  |
Junior subordinated notes |  |  |  | 500,000 |  | 500,000 |  |  |  |  |
Issued on July 3, 2018 | 5.25% Convertible Notes | First Offering |  |  |  |  |  |  |  |  |  |  |
Debt Obligations |  |  |  |  |  |  |  |  |  |  |
Junior subordinated notes |  |  |  | $ 1,000 |  | $ 1,000 |  |  |  |  |
Conversion rate of the notes to common stock, per $1,000 principal amount of notes |  | 91.9605 |  |  |  |  |  |  |  |  |
Conversion price per share of common stock | $ / shares |  |  |  | $ 10.87 |  | $ 10.87 |  |  |  |  |
Issued on July 20, 2018 | 5.25% Convertible Notes |  |  |  |  |  |  |  |  |  |  |
Debt Obligations |  |  |  |  |  |  |  |  |  |  |
Junior subordinated notes |  |  |  |  | $ 13,800,000 |  | $ 13,800,000 |  |  |  |
Issued on July 20, 2018 | 5.25% Convertible Notes | Second Offering |  |  |  |  |  |  |  |  |  |  |
Debt Obligations |  |  |  |  |  |  |  |  |  |  |
Conversion rate of the notes to common stock, per $1,000 principal amount of notes |  |  |  |  |  | 82.2763 |  |  |  |  |
Conversion price per share of common stock | $ / shares |  |  |  | $ 12.15 |  | $ 12.15 |  |  |  |  |

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