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Acquisitions and Other Strategic Transactions - Purchase Price Allocation (Details) - USD ($) $ in Thousands | Nov. 06, 2020 | Aug. 01, 2019 | Jun. 14, 2019 | Dec. 31, 2021 | Dec. 31, 2020 | Dec. 31, 2019
--- | --- | --- | --- | --- | --- | ---
Assets Acquired |  |  |  |  |  |
Goodwill |  |  |  | $ 361,741 | $ 363,533 | $ 353,193
KA Medical |  |  |  |  |  |
Assets Acquired |  |  |  |  |  |
Trade receivables | $ 24 |  |  |  |  |
Other receivables | 13 |  |  |  |  |
Inventories | 211 |  |  |  |  |
Property and equipment | 298 |  |  |  |  |
Other long-term assets | 10 |  |  |  |  |
Goodwill | 8,570 |  |  |  |  |
Total assets acquired | 15,126 |  |  |  |  |
Liabilities Assumed |  |  |  |  |  |
Trade payables | (31) |  |  |  |  |
Accrued expenses | (507) |  |  |  |  |
Total liabilities assumed | (538) |  |  |  |  |
Total net assets acquired | 14,588 |  |  |  |  |
KA Medical | Developed technology |  |  |  |  |  |
Assets Acquired |  |  |  |  |  |
Intangible assets | $ 6,000 |  |  |  |  |
Liabilities Assumed |  |  |  |  |  |
Weighted average useful life | 17 years |  |  |  |  |
Fibrovein Holdings Limited |  |  |  |  |  |
Assets Acquired |  |  |  |  |  |
Trade receivables |  | $ 277 |  |  |  |
Inventories |  | 843 |  |  |  |
Prepaid expenses and other assets |  | 49 |  |  |  |
Goodwill |  | 4,975 |  |  |  |
Total assets acquired |  | 16,572 |  |  |  |
Liabilities Assumed |  |  |  |  |  |
Trade payables |  | (53) |  |  |  |
Accrued expenses |  | (29) |  |  |  |
Deferred income tax liabilities |  | (1,890) |  |  |  |
Total liabilities assumed |  | (1,972) |  |  |  |
Total net assets acquired |  | $ 14,600 |  |  |  |
Weighted average useful life |  | 12 years |  |  |  |
Fibrovein Holdings Limited | Developed technology |  |  |  |  |  |
Assets Acquired |  |  |  |  |  |
Intangible assets |  | $ 10,428 |  |  |  |
Liabilities Assumed |  |  |  |  |  |
Weighted average useful life |  | 12 years |  |  |  |
Brightwater |  |  |  |  |  |
Assets Acquired |  |  |  |  |  |
Trade receivables |  |  | $ 55 |  |  |
Inventories |  |  | 349 |  |  |
Property and equipment |  |  | 409 |  |  |
Other long-term assets |  |  | 30 |  |  |
Goodwill |  |  | 17,607 |  |  |
Total assets acquired |  |  | 50,743 |  |  |
Liabilities Assumed |  |  |  |  |  |
Trade payables |  |  | (58) |  |  |
Accrued expenses |  |  | (261) |  |  |
Other long-term liabilities |  |  | (1,522) |  |  |
Deferred income tax liabilities |  |  | (4,263) |  |  |
Total liabilities assumed |  |  | (6,104) |  |  |
Total net assets acquired |  |  | $ 44,639 |  |  |
Weighted average useful life |  |  | 12 years 10 months 24 days |  |  |
Brightwater | Developed technology |  |  |  |  |  |
Assets Acquired |  |  |  |  |  |
Intangible assets |  |  | $ 31,960 |  |  |
Liabilities Assumed |  |  |  |  |  |
Weighted average useful life |  |  | 13 years |  |  |
Brightwater | Customer Lists |  |  |  |  |  |
Assets Acquired |  |  |  |  |  |
Intangible assets |  |  | $ 83 |  |  |
Liabilities Assumed |  |  |  |  |  |
Weighted average useful life |  |  | 1 year |  |  |
Brightwater | Trademarks |  |  |  |  |  |
Assets Acquired |  |  |  |  |  |
Intangible assets |  |  | $ 250 |  |  |
Liabilities Assumed |  |  |  |  |  |
Weighted average useful life |  |  | 5 years |  |  |

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