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Acquisitions (Tables) | 3 Months Ended
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Mar. 31, 2018
Business Combinations [Abstract] |
Schedule of Business Acquisitions, by Acquisition |
Purchase Price Allocation of Acquired Net Assets
| 2018 |  | 2017
| Entellus |  | NOVADAQ
Purchase price, net of cash acquired | $ | 697 |  |  | $ | 674 |
Tangible assets: |  |  |
Accounts receivable | 17 |  |  | 11 |
Inventory | 14 |  |  | 39 |
Other assets | 66 |  |  | 9 |
Contingent consideration | (78 | ) |  | — |
Other liabilities | (92 | ) |  | (59 | )
Intangible assets: |  |  |
Customer relationship | 33 |  |  | 18 |
Trade name | — |  |  | 1 |
Developed technology and patents | 256 |  |  | 133 |
Goodwill | 481 |  |  | 522 |
| $ | 697 |  |  | $ | 674 |
Weighted-average life of intangible assets | 16 |  |  | 14 |
Schedule of Finite-Lived Intangible Assets, Future Amortization Expense |
Estimated Amortization Expense
Remainder of 2018 | 2019 | 2020 | 2021 | 2022
$ | 287 |  | $ | 370 |  | $ | 345 |  | $ | 333 |  | $ | 327 |

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- Definition Tabular disclosure of a material business combination completed during the period, including background, timing, and recognized assets and liabilities. This table does not include leveraged buyouts. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 10 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=79982066&loc=d3e1486-128463 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=79982066&loc=d3e1392-128463 + Details
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