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Discontinued Operations Discontinued Operations - (Details) - USD ($) |  | 3 Months Ended | 12 Months Ended
--- | --- | --- | ---
Jul. 06, 2015 | Oct. 04, 2015 | Dec. 31, 2015 | Dec. 31, 2014 | Dec. 31, 2013
Allocated Share-based Compensation Expense |  |  | $ 21,274,000 | $ 15,158,000 | $ 10,620,000
Discontinued Operations, Disposed of by Sale [Member] |  |  |  |  |
Allocated Share-based Compensation Expense | $ 1,106,000 |  |  |  |
SISD [Member] | Discontinued Operations, Disposed of by Sale [Member] |  |  |  |  |
Disposal Group, Including Discontinued Operation, Consideration | 155,655,000 |  |  |  |
Disposal Group, Including Discontinued Operations, Transaction Costs | 5,198,000 |  |  |  |
Gain on sale of discontinued business | $ 125,357,000 |  | 125,357,000 | $ 0 | $ 0
Income tax expense on discontinued operations |  |  | $ 47,175,000 |  |
Discontinued Operations, Disposed of by Sale [Member] |  |  |  |  |
Allocated Share-based Compensation Expense |  | $ 1,106,000 |  |  |

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- Definition Amount before tax of gain (loss) not previously recognized resulting from the disposal of a discontinued operation. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 205 -SubTopic 20 -Section 45 -Paragraph 3B -URI http://asc.fasb.org/extlink&oid=51716988&loc=SL51721525-107759 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 205 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=51717284&loc=d3e1361-107760 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 205 -SubTopic 20 -Section 45 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=51716988&loc=d3e957-107759 + Details
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