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4. Goodwill and other Purchased Intangible Assets Intangible Assets, Goodwill and Other Intangible Assets (Details) - USD ($) $ in Thousands | 3 Months Ended | 12 Months Ended |
--- | --- | --- | ---
Mar. 31, 2016 | Dec. 31, 2016 | Dec. 31, 2015 | Dec. 31, 2014 | Jan. 06, 2016
Acquired Finite-Lived Intangible Assets [Line Items] |  |  |  |  |
Finite-Lived Intangible Assets, Gross |  | $ 443,200 | $ 417,500 |  |
Future Amortization Expense, Year One |  | 27,200 |  |  |
Future Amortization Expense, Year Two |  | 24,200 |  |  |
Future Amortization Expense, Year Three |  | 21,400 |  |  |
Future Amortization Expense, Year Four |  | 19,400 |  |  |
Future Amortization Expense, Year Five |  | 18,400 |  |  |
Finite-Lived Intangible Assets, Amortization Expense, after Year Five |  | 51,000 |  |  |
Finite-Lived Intangible Assets, Net [Abstract] |  |  |  |  |
Accumulated Amortization |  | (281,600) | (249,900) |  |
Net Carrying Amount |  | 161,600 | 167,600 |  |
Amortization [Abstract] |  |  |  |  |
Amortization expense |  | 35,200 | 36,500 | $ 47,800 |
Indefinite-Lived Intangible Assets (Excluding Goodwill) |  | 0 | 46,400 |  |
Impairment losses on goodwill and long-lived assets |  | 62,305 | 0 | $ 0 |
Impairment of Intangible Assets, Indefinite-lived (Excluding Goodwill) |  | 46,400 |  |  |
Intangible Assets, Gross (Excluding Goodwill) |  | 443,200 | 463,900 |  |
Intangible Assets, Net (Excluding Goodwill) |  | 161,609 | 214,026 |  |
Customer Relationships [Member] |  |  |  |  |
Acquired Finite-Lived Intangible Assets [Line Items] |  |  |  |  |
Finite-Lived Intangible Assets, Gross |  | 84,400 | 84,700 |  |
Finite-Lived Intangible Assets, Net [Abstract] |  |  |  |  |
Accumulated Amortization |  | (52,800) | (46,800) |  |
Net Carrying Amount |  | 31,600 | 37,900 |  |
Know how [Member] |  |  |  |  |
Acquired Finite-Lived Intangible Assets [Line Items] |  |  |  |  |
Finite-Lived Intangible Assets, Gross |  | 182,600 | 184,000 |  |
Finite-Lived Intangible Assets, Net [Abstract] |  |  |  |  |
Accumulated Amortization |  | (136,900) | (121,600) |  |
Net Carrying Amount |  | 45,700 | 62,400 |  |
Developed Technology Rights [Member] |  |  |  |  |
Acquired Finite-Lived Intangible Assets [Line Items] |  |  |  |  |
Finite-Lived Intangible Assets, Gross |  | 125,900 | 101,300 |  |
Finite-Lived Intangible Assets, Net [Abstract] |  |  |  |  |
Accumulated Amortization |  | (56,300) | (48,900) |  |
Net Carrying Amount |  | 69,600 | 52,400 |  |
Licensing Agreements [Member] |  |  |  |  |
Acquired Finite-Lived Intangible Assets [Line Items] |  |  |  |  |
Finite-Lived Intangible Assets, Gross |  | 39,000 | 39,200 |  |
Finite-Lived Intangible Assets, Net [Abstract] |  |  |  |  |
Accumulated Amortization |  | (30,600) | (28,500) |  |
Net Carrying Amount |  | 8,400 | 10,700 |  |
Trade Names [Member] |  |  |  |  |
Acquired Finite-Lived Intangible Assets [Line Items] |  |  |  |  |
Finite-Lived Intangible Assets, Gross |  | 3,500 | 3,500 |  |
Finite-Lived Intangible Assets, Net [Abstract] |  |  |  |  |
Accumulated Amortization |  | (2,500) | (2,400) |  |
Net Carrying Amount |  | 1,000 | 1,100 |  |
Noncompete Agreements [Member] |  |  |  |  |
Acquired Finite-Lived Intangible Assets [Line Items] |  |  |  |  |
Finite-Lived Intangible Assets, Gross |  | 7,800 | 4,800 |  |
Finite-Lived Intangible Assets, Net [Abstract] |  |  |  |  |
Accumulated Amortization |  | (2,500) | (1,700) |  |
Net Carrying Amount |  | $ 5,300 | $ 3,100 |  |
Minimum [Member] | Customer Relationships [Member] |  |  |  |  |
Acquired Finite-Lived Intangible Assets [Line Items] |  |  |  |  |
Finite-Lived Intangible Assets, Remaining Amortization Period |  | 1 year | 2 years |  |
Minimum [Member] | Know how [Member] |  |  |  |  |
Acquired Finite-Lived Intangible Assets [Line Items] |  |  |  |  |
Finite-Lived Intangible Assets, Remaining Amortization Period |  | 1 year | 1 year |  |
Minimum [Member] | Developed Technology Rights [Member] |  |  |  |  |
Acquired Finite-Lived Intangible Assets [Line Items] |  |  |  |  |
Finite-Lived Intangible Assets, Remaining Amortization Period |  | 3 years | 4 years |  |
Minimum [Member] | Licensing Agreements [Member] |  |  |  |  |
Acquired Finite-Lived Intangible Assets [Line Items] |  |  |  |  |
Finite-Lived Intangible Assets, Remaining Amortization Period |  | 1 year | 3 years |  |
Minimum [Member] | Trade Names [Member] |  |  |  |  |
Acquired Finite-Lived Intangible Assets [Line Items] |  |  |  |  |
Finite-Lived Intangible Assets, Remaining Amortization Period |  | 4 years | 5 years |  |
Minimum [Member] | Noncompete Agreements [Member] |  |  |  |  |
Acquired Finite-Lived Intangible Assets [Line Items] |  |  |  |  |
Finite-Lived Intangible Assets, Remaining Amortization Period |  | 2 years | 3 years |  |
Minimum [Member] | Other Intangible Assets [Member] |  |  |  |  |
Acquired Finite-Lived Intangible Assets [Line Items] |  |  |  |  |
Finite-Lived Intangible Assets, Remaining Amortization Period |  | 0 years | 0 years |  |
Maximum [Member] | Customer Relationships [Member] |  |  |  |  |
Acquired Finite-Lived Intangible Assets [Line Items] |  |  |  |  |
Finite-Lived Intangible Assets, Remaining Amortization Period |  | 8 years | 10 years |  |
Maximum [Member] | Know how [Member] |  |  |  |  |
Acquired Finite-Lived Intangible Assets [Line Items] |  |  |  |  |
Finite-Lived Intangible Assets, Remaining Amortization Period |  | 9 years | 10 years |  |
Maximum [Member] | Developed Technology Rights [Member] |  |  |  |  |
Acquired Finite-Lived Intangible Assets [Line Items] |  |  |  |  |
Finite-Lived Intangible Assets, Remaining Amortization Period |  | 12 years | 12 years |  |
Maximum [Member] | Licensing Agreements [Member] |  |  |  |  |
Acquired Finite-Lived Intangible Assets [Line Items] |  |  |  |  |
Finite-Lived Intangible Assets, Remaining Amortization Period |  | 9 years | 10 years |  |
Maximum [Member] | Trade Names [Member] |  |  |  |  |
Acquired Finite-Lived Intangible Assets [Line Items] |  |  |  |  |
Finite-Lived Intangible Assets, Remaining Amortization Period |  | 8 years | 9 years |  |
Maximum [Member] | Noncompete Agreements [Member] |  |  |  |  |
Acquired Finite-Lived Intangible Assets [Line Items] |  |  |  |  |
Finite-Lived Intangible Assets, Remaining Amortization Period |  | 9 years | 7 years |  |
Maximum [Member] | Other Intangible Assets [Member] |  |  |  |  |
Acquired Finite-Lived Intangible Assets [Line Items] |  |  |  |  |
Finite-Lived Intangible Assets, Remaining Amortization Period |  | 0 years | 0 years |  |
Analytical Flow Cytometer Platform [Member] |  |  |  |  |
Acquired Finite-Lived Intangible Assets [Line Items] |  |  |  |  |
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Finite-Lived Intangibles |  |  |  |  | $ 32,700
Analytical Flow Cytometer Platform [Member] | Developed Technology Rights [Member] |  |  |  |  |
Acquired Finite-Lived Intangible Assets [Line Items] |  |  |  |  |
Finite-lived Intangible Assets Acquired | $ 29,700 |  |  |  |
Analytical Flow Cytometer Platform [Member] | Noncompete Agreements [Member] |  |  |  |  |
Acquired Finite-Lived Intangible Assets [Line Items] |  |  |  |  |
Finite-lived Intangible Assets Acquired | $ 3,000 |  |  |  |

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