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Debt - Convertible Subordinated Notes (Details) |  |  |  | 1 Months Ended | 3 Months Ended | 6 Months Ended |  |  |
--- | --- | --- | --- | --- | --- | --- | --- | --- | ---
Apr. 18, 2022 USD ($) | Mar. 07, 2022 USD ($) | Jul. 31, 2014 $ / shares $ / Item | Jul. 31, 2014 $ / shares $ / Item shares | Jan. 31, 2013 USD ($) Item $ / shares $ / Item shares | Jun. 30, 2022 USD ($) | Mar. 31, 2022 USD ($) | Jun. 30, 2021 USD ($) | Jun. 30, 2022 USD ($) | Jun. 30, 2021 USD ($) | Apr. 30, 2022 USD ($) | Dec. 31, 2021 USD ($) | Dec. 31, 2016 USD ($)
Debt |  |  |  |  |  |  |  |  |  |  |  |  |
Payment for repurchase of debt instrument |  |  |  |  |  |  |  |  | $ 165,131,000 | $ 0 |  |  |
Accrued interest payable |  |  |  |  |  | $ 4,498,000 |  |  | 4,498,000 |  |  | $ 4,152,000 |
Loss on extinguishment of debt |  |  |  |  |  | 0 |  | $ 0 | (20,662,000) | 0 |  |  |
Liability component |  |  |  |  |  |  |  |  |  |  |  |  |
Principal |  |  |  |  |  | 549,704,000 |  |  | 549,704,000 |  |  | 433,484,000 |
Debt discount and issuance costs, net |  |  |  |  |  | (10,454,000) |  |  | $ (10,454,000) |  |  | (38,831,000) |
Convertible subordinated notes | Privately-negotiated capped call option |  |  |  |  |  |  |  |  |  |  |  |  |
Debt |  |  |  |  |  |  |  |  |  |  |  |  |
Cap price for the underlying number of shares (in dollars per share) | $ / Item |  |  | 27.04 | 27.04 |  |  |  |  |  |  |  |  |
2023 Notes | Convertible subordinated notes |  |  |  |  |  |  |  |  |  |  |  |  |
Debt |  |  |  |  |  |  |  |  |  |  |  |  |
Loan amount |  |  |  |  | $ 287,500,000 |  |  |  |  |  |  |  |
Debt instrument maturity date |  |  |  |  | Jan. 15, 2023 |  |  |  |  |  |  |  |
Proceeds from issuance of notes payable, net of debt issuance costs |  |  |  |  | $ 281,200,000 |  |  |  |  |  |  |  |
Debt Instrument, annual interest rate |  |  |  |  | 2.125% |  |  |  |  |  |  |  |
Initial conversion, shares per $1,000 principal amount | shares | shares |  |  |  |  | 35.9903 |  |  |  |  |  |  |  |
Adjusted conversion, shares per $1,000 principal amount | shares |  |  |  | 50.5818 |  |  |  |  |  |  |  |  |
Conversion price of convertible notes into common stock (in dollars per share) | $ / shares |  |  | $ 19.77 | $ 19.77 | $ 27.79 |  |  |  |  |  |  |  |
Ratio of repurchase price to the principal amount |  |  |  |  |  |  |  |  | 100.00% |  |  |  |
Portion of debt retired, face value |  | $ 144,800,000 |  |  |  |  | $ 144,800,000 |  |  |  |  |  | $ 14,100,000
Portion of debt retired, carrying value |  |  |  |  |  |  | 144,500,000 |  |  |  |  |  | $ 13,900,000
Payment for repurchase of debt instrument |  | $ 165,600,000 |  |  |  |  | $ 165,600,000 |  |  |  |  |  |
Percentage of notes repurchased |  | 60.00% |  |  |  |  |  |  |  |  |  |  |
Accrued interest payable |  | $ 400,000 |  |  |  |  |  |  |  |  |  |  |
Unamortized debt issuance cost |  | 300,000 |  |  |  |  |  |  |  |  |  |  |
Loss on extinguishment of debt |  | $ 20,700,000 |  |  |  |  |  |  |  |  |  |  |
Effective interest rate |  | 2.37% |  |  |  |  |  |  |  |  |  |  |
Liability component |  |  |  |  |  |  |  |  |  |  |  |  |
Principal | $ 96,200,000 | $ 96,200,000 |  |  |  | 96,204,000 |  |  | $ 96,204,000 |  |  | 240,984,000 |
Debt discount and issuance costs, net |  |  |  |  |  | (132,000) |  |  | (132,000) |  | $ (200,000) | (620,000) |
Net Carrying Amount |  |  |  |  |  | 96,072,000 |  |  | 96,072,000 |  |  | $ 240,364,000 |
Interest expense |  |  |  |  |  |  |  |  |  |  |  |  |
Contractual interest expense |  |  |  |  |  | 511,000 |  | 1,280,000 | 1,595,000 | 2,560,000 |  |  |
Amortization of debt issuance costs |  |  |  |  |  | 59,000 |  | 147,000 | 181,000 | 288,000 |  |  |
Total interest and amortization expense |  |  |  |  |  | $ 570,000 |  | $ 1,427,000 | $ 1,776,000 | $ 2,848,000 |  |  |
2023 Notes | Convertible subordinated notes | Privately-negotiated capped call option |  |  |  |  |  |  |  |  |  |  |  |  |
Debt |  |  |  |  |  |  |  |  |  |  |  |  |
Payments for capped call options |  |  |  |  | $ 36,800,000 |  |  |  |  |  |  |  |
Number of derivative instruments purchased | Item |  |  |  |  | 2 |  |  |  |  |  |  |  |
Strike price for the underlying number of shares (in dollars per share) | $ / shares |  |  | $ 27.79 | $ 19.77 | $ 27.79 |  |  |  |  |  |  |  |
Cap price for the underlying number of shares (in dollars per share) | $ / Item |  |  | 38.00 | 38.00 | 38.00 |  |  |  |  |  |  |  |
2023 Notes | Convertible subordinated notes | Stock prices below $27.79 per share | Minimum |  |  |  |  |  |  |  |  |  |  |  |  |
Debt |  |  |  |  |  |  |  |  |  |  |  |  |
Net shares settlement payable to the entity | shares |  |  |  |  | 0 |  |  |  |  |  |  |  |
2023 Notes | Convertible subordinated notes | Stock prices above $38.00 per share | Maximum |  |  |  |  |  |  |  |  |  |  |  |  |
Debt |  |  |  |  |  |  |  |  |  |  |  |  |
Net shares settlement payable to the entity | shares |  |  |  |  | 2,779,659 |  |  |  |  |  |  |  |
Innoviva's Common Stock | 2023 Notes | Convertible subordinated notes |  |  |  |  |  |  |  |  |  |  |  |  |
Liability component |  |  |  |  |  |  |  |  |  |  |  |  |
Notes converted into common stock, Amount | $ 3,000.0 |  |  |  |  |  |  |  |  |  |  |  |

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- Definition The value of the financial instrument(s) that the original debt is being converted into in a noncash (or part noncash) transaction. "Part noncash" refers to that portion of the transaction not resulting in cash receipts or cash payments in the period. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 50 -Paragraph 3 -URI https://asc.fasb.org/extlink&oid=126999549&loc=d3e4304-108586 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 50 -Paragraph 5 -URI https://asc.fasb.org/extlink&oid=126999549&loc=d3e4332-108586 + 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 https://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 https://asc.fasb.org/extlink&oid=126734703&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 https://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 https://asc.fasb.org/extlink&oid=126897435&loc=d3e534808-122878 + Details
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