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v3.19.3

Fair value of financial instruments - Fair value on a recurring basis (Details) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended | 12 Months Ended
--- | --- | --- | ---
Sep. 30, 2019 | Jun. 30, 2019 | Dec. 31, 2018 | Sep. 30, 2018 | Sep. 30, 2019 | Dec. 31, 2018
Fair value of financial instruments |  |  |  |  |  |
Assets transfers from Level 1 to Level 2 | $ 0 |  |  |  | $ 0 |
Assets transfers from Level 2 to Level 1 | 0 |  |  |  | 0 |
Assets transfers into Level 3 |  |  |  |  | 0 |
Assets transfers out of Level 3 |  |  |  |  | 0 |
Liabilities transfers from Level 1 to Level 2 | 0 |  |  |  | 0 |
Liabilities transfers from Level 2 to Level 1 | 0 |  |  |  | 0 |
Liabilities transfers into Level 3 |  |  |  |  | 0 |
Liabilities transfers out of Level 3 |  |  |  |  | 0 |
Long term investments | 117,902 |  | $ 99,199 |  | 117,902 | $ 99,199
ARIAD |  |  |  |  |  |
Roll forward of Level 3 liabilities |  |  |  |  |  |
Contingent consideration earned during the period but not yet paid | (14,900) |  |  |  |  | (13,200)
ARIAD | Account payable |  |  |  |  |  |
Roll forward of Level 3 liabilities |  |  |  |  |  |
Contingent consideration earned during the period but not yet paid |  |  |  | $ (6,700) |  |
ARIAD | Accrued and other current liabilities |  |  |  |  |  |
Roll forward of Level 3 liabilities |  |  |  |  |  |
Contingent consideration earned during the period but not yet paid | (7,300) | $ (7,600) | (6,500) |  |  |
Level 3 | Fair Value |  |  |  |  |  |
Roll forward of Level 3 liabilities |  |  |  |  |  |
Balance at the beginning of the period |  |  |  |  | 287,001 |
Contingent consideration earned during the period but not yet paid |  |  |  |  | (14,889) |
Payments made during the period |  |  |  |  | (6,672) |
Change in fair value of contingent consideration |  |  |  |  | 16,560 |
Balance at the end of the period | 282,000 |  | 287,001 |  | 282,000 | 287,001
Recurring | Fair Value |  |  |  |  |  |
Fair value of financial instruments |  |  |  |  |  |
Cash and cash equivalents | 1,702,023 |  | 1,163,980 |  | 1,702,023 | 1,163,980
Debt securities (corporate and government) | 284,195 |  | 274,343 |  | 284,195 | 274,343
Long term investments | 117,902 |  | 99,199 |  | 117,902 | 99,199
Total assets | 2,104,120 |  | 1,537,522 |  | 2,104,120 | 1,537,522
Acquisition-related contingent consideration | 282,000 |  | 287,001 |  | 282,000 | 287,001
Total liabilities | 282,000 |  | 287,001 |  | 282,000 | 287,001
Recurring | Level 1 |  |  |  |  |  |
Fair value of financial instruments |  |  |  |  |  |
Cash and cash equivalents | 1,702,023 |  | 1,163,980 |  | 1,702,023 | 1,163,980
Long term investments | 117,902 |  | 99,199 |  | 117,902 | 99,199
Total assets | 1,819,925 |  | 1,263,179 |  | 1,819,925 | 1,263,179
Recurring | Level 2 |  |  |  |  |  |
Fair value of financial instruments |  |  |  |  |  |
Debt securities (corporate and government) | 284,195 |  | 274,343 |  | 284,195 | 274,343
Total assets | 284,195 |  | 274,343 |  | 284,195 | 274,343
Recurring | Level 3 |  |  |  |  |  |
Fair value of financial instruments |  |  |  |  |  |
Acquisition-related contingent consideration | 282,000 |  | 287,001 |  | 282,000 | 287,001
Total liabilities | $ 282,000 |  | $ 287,001 |  | $ 282,000 | $ 287,001

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