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Acquisitions - Purchase Price Allocation (DFINE Inc. and HeRO Graft) (Details) - USD ($) $ in Thousands | 3 Months Ended |  |
--- | --- | --- | ---
Dec. 31, 2016 | Sep. 30, 2017 | Feb. 04, 2016
Assets Acquired |  |  |
Goodwill | $ 211,927 | $ 234,043 |
HeRO®Graft |  |  |
Assets Acquired |  |  |
Inventories |  |  | $ 2,455
Property and equipment |  |  | 290
Goodwill |  |  | 2,555
Total assets acquired |  |  | 18,500
DFINE, Inc. |  |  |
Assets Acquired |  |  |
Trade receivables | 4,054 |  |
Other receivables | 6 |  |
Inventories | 8,585 |  |
Prepaid expenses | 630 |  |
Property and equipment | 1,630 |  |
Other long-term assets | 145 |  |
Goodwill | 24,818 |  |
Total assets acquired | 114,268 |  |
Liabilities Assumed |  |  |
Trade payables | (1,790) |  |
Accrued expenses | (5,298) |  |
Deferred income tax liabilities - current | (701) |  |
Deferred income tax liabilities - noncurrent | (10,844) |  |
Total liabilities assumed | (18,633) |  |
Net assets acquired, net of cash received of $1,327 | 95,635 |  |
Cash received | 1,327 |  |
Developed Technology Rights | HeRO®Graft |  |  |
Assets Acquired |  |  |
Intangibles |  |  | 12,100
Developed Technology Rights | DFINE, Inc. |  |  |
Assets Acquired |  |  |
Intangibles | 67,600 |  |
Customer lists | HeRO®Graft |  |  |
Assets Acquired |  |  |
Intangibles |  |  | 400
Customer lists | DFINE, Inc. |  |  |
Assets Acquired |  |  |
Intangibles | 2,400 |  |
Trademarks | HeRO®Graft |  |  |
Assets Acquired |  |  |
Intangibles |  |  | $ 700
Trademarks | DFINE, Inc. |  |  |
Assets Acquired |  |  |
Intangibles | $ 4,400 |  |

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