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Acquisitions and Divestitures - Intralinks (Details) - USD ($) | Jan. 19, 2017 | Jun. 30, 2017 | Dec. 31, 2016
--- | --- | --- | ---
Business Acquisition [Line Items] |  |  |
Goodwill |  | $ 231,941,000 | $ 224,651,000
Intralinks Holdings, Inc. |  |  |
Business Acquisition [Line Items] |  |  |
Cash consideration for outstanding Intralinks' common shares | $ 746,071,000 |  |
Cash consideration for accelerated equity awards to Intralinks' employees upon change in control | 7,873,000 |  |
Cash consideration for vested unexercised Intralinks' stock options | 19,838,000 |  |
Cash consideration for existing Intralinks' debt | 77,800,000 |  |
Cash consideration for shareholders purchase price settlement | 2,794,000 |  |
Total cash consideration transferred | 854,376,000 |  |
Fair value of replacement awards | 4,702,000 |  |
Total consideration transferred | 859,078,000 |  |
Cash | 39,370,000 |  |
Accounts receivable | 46,182,000 |  |
Prepaid expenses and other assets | 9,775,000 |  |
Property and equipment, net | $ 14,075,000 |  |
Property and equipment, net, weighted average life | 4 years |  |
Goodwill | $ 482,822,000 |  |
Intangible assets | 411,577,000 |  |
Other assets, long-term | 3,865,000 |  |
Investment in unconsolidated affiliate | 5,800,000 |  |
Total assets acquired | 1,013,466,000 |  |
Accounts payable | 4,853,000 |  |
Accrued expenses | 21,421,000 |  |
Deferred revenues, short-term | 12,449,000 |  |
Deferred tax liability | 110,044,000 |  |
Deferred revenues, long-term | 1,051,000 |  |
Other liabilities, long-term | 4,570,000 |  |
Total liabilities | 154,388,000 |  |
Net assets acquired | 859,078,000 |  |
Tax deductible goodwill | 0 |  |
Intralinks Holdings, Inc. | Developed Technology Rights |  |  |
Business Acquisition [Line Items] |  |  |
Intangible assets | $ 79,400,000 |  |
Intangible assets, weighted average life | 6 years |  |
Intralinks Holdings, Inc. | Capitalized software costs |  |  |
Business Acquisition [Line Items] |  |  |
Intangible assets | $ 277,000 |  |
Intangible assets, weighted average life | 1 year |  |
Intralinks Holdings, Inc. | Trade names |  |  |
Business Acquisition [Line Items] |  |  |
Intangible assets | $ 47,800,000 |  |
Intangible assets, weighted average life | 18 years |  |
Intralinks Holdings, Inc. | Customer Relationships |  |  |
Business Acquisition [Line Items] |  |  |
Intangible assets | $ 284,100,000 |  |
Intangible assets, weighted average life | 10 years |  |
Goldman Sachs Bank USA | 2017 Term Facility |  |  |
Business Acquisition [Line Items] |  |  |
Borrowing capacity | $ 900,000,000 |  |
Proceeds from credit agreement | $ 900,000,000 |  |

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