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Acquisition and Divestiture Activities (Details) $ / shares in Units, $ in Thousands | 3 Months Ended | 12 Months Ended |  |
--- | --- | --- | --- | ---
Dec. 31, 2014 USD ($) | Sep. 27, 2014 USD ($) | Dec. 31, 2016 USD ($) | Dec. 31, 2015 USD ($) | Dec. 31, 2014 USD ($) $ / shares | Sep. 01, 2014 USD ($) shares | Jul. 11, 2014 USD ($) | Jul. 11, 2014 TWD / shares
Business Acquisition, Equity Interests Issued or Issuable [Line Items] |  |  |  |  |  |  |  |
Acquisition of business, net of cash acquired |  |  | $ 0 | $ 6,750 | $ 197,986 |  |  |
Acquisition of noncontrolling interests |  |  | 0 | 0 | (21,067) |  |  |
Business Acquisition, Pro Forma Information [Abstract] |  |  |  |  |  |  |  |
Business Acquisition, Pro Forma Revenue |  |  |  |  | 2,522,010 |  |  |
Business Acquisition, Pro Forma Net Income (Loss) |  |  |  |  | $ 114,510 |  |  |
Business Acquisition, Pro Forma Earnings Per Share, Basic | $ / shares |  |  |  |  | $ 0.78 |  |  |
Business Acquisition, Pro Forma Earnings Per Share, Diluted | $ / shares |  |  |  |  | $ 0.75 |  |  |
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Net [Abstract] |  |  |  |  |  |  |  |
Goodwill | $ 144,359 |  | 141,407 | 138,244 | $ 144,359 |  |  |
Holy Stone Polytech [Member] |  |  |  |  |  |  |  |
Business Acquisition, Equity Interests Issued or Issuable [Line Items] |  |  |  |  |  |  |  |
Acquisition of business, net of cash acquired |  |  |  |  | 20,576 |  |  |
Finite-lived Intangible Assets Acquired |  |  |  |  | 3,736 |  |  |
Goodwill related to acquisitions |  |  |  |  | $ 6,328 |  |  |
Business Acquisition, Name of Acquired Entity |  |  |  |  | Holy Stone Polytech Co., Ltd. |  |  |
Business Acquisition, Effective Date of Acquisition |  |  |  |  | Jun. 11, 2014 |  |  |
Capella [Member] |  |  |  |  |  |  |  |
Business Acquisition, Equity Interests Issued or Issuable [Line Items] |  |  |  |  |  |  |  |
Number of shares acquired | shares |  |  |  |  |  | 38,703,705 |  |
Business Acquisition, Percentage of Voting Interests Acquired |  |  |  |  |  | 88.95% |  |
Gross purchase price of acquired business |  | $ 180,167 |  |  |  |  |  |
Acquired cash and short-term investments |  |  |  |  |  | $ 50,195 |  |
Borrowings to fund acquisition |  | $ 53,000 |  |  |  |  |  |
Acquisition of noncontrolling interests | 21,067 |  |  |  |  |  |  |
Business Acquisition, Transaction Costs | $ 843 |  |  |  | $ 843 |  |  |
Business Acquisition, Name of Acquired Entity |  |  |  |  | Capella Microsystems (Taiwan) Inc. |  |  |
Business Acquisition, Date of Acquisition Agreement |  |  |  |  | Jul. 11, 2014 |  |  |
Business Acquisition, Share Price | TWD / shares |  |  |  |  |  |  |  | TWD 139
Offered purchase price |  |  |  |  |  |  | $ 205,000 |
Sonntag [Member] |  |  |  |  |  |  |  |
Business Acquisition, Equity Interests Issued or Issuable [Line Items] |  |  |  |  |  |  |  |
Acquisition of business, net of cash acquired |  |  | 5,450 |  |  |  |  |
Goodwill related to acquisitions |  |  | $ 3,485 |  |  |  |  |
Gross purchase price of acquired business |  |  |  | $ 6,750 |  |  |  |
Business Acquisition, Name of Acquired Entity |  |  | Sonntag Electronic GmbH |  |  |  |  |
Business Acquisition, Effective Date of Acquisition |  |  | Jan. 01, 2016 |  |  |  |  |

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