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Goodwill and Other Intangible Assets, Net (Intangible Assets) (Details) - USD ($) $ in Thousands | 12 Months Ended |
--- | --- | ---
Dec. 31, 2017 | Dec. 31, 2016
Goodwill [Line Items] |  |
Amortization period | 1 year |
Schedule of intangible assets |  |
Accumulated Amortization | $ (132,779) | $ (108,152)
Finite-lived intangible assets | 210,139 |
Intangible assets, gross carrying amount | 388,118 | 312,036
Total acquired intangible assets, Net carrying amount | 255,339 | 203,884
Trade names |  |
Schedule of intangible assets |  |
Indefinite lived intangible assets | $ 45,200 | 45,200
Facility management contracts |  |
Goodwill [Line Items] |  |
Amortization period | 16 years 3 months |
Schedule of intangible assets |  |
Gross Carrying Amount | $ 308,518 | 233,136
Accumulated Amortization | (106,724) | (87,256)
Finite-lived intangible assets | 201,794 | 145,880
Covenants not to compete |  |
Schedule of intangible assets |  |
Gross Carrying Amount | 700 | 0
Accumulated Amortization | (517) | 0
Finite-lived intangible assets | $ 183 | 0
Technology |  |
Goodwill [Line Items] |  |
Amortization period | 7 years 3 months |
Schedule of intangible assets |  |
Gross Carrying Amount | $ 33,700 | 33,700
Accumulated Amortization | (25,538) | (20,896)
Finite-lived intangible assets | $ 8,162 | $ 12,804

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- Definition Useful life of finite-lived intangible assets, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. + References No definition available. + Details
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- Definition Accumulated amount of amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (a)(1) -URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16323-109275 + Details
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- Definition Amount before amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (a)(1) -URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16323-109275 + Details
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- Definition Amount after amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (a)(1) -URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16323-109275 + Details
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- Definition Amount of assets, excluding financial assets and goodwill, lacking physical substance and having a projected indefinite period of benefit. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16323-109275 + Details
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- Definition Sum of the carrying amounts of all intangible assets, excluding goodwill, as of the balance sheet date, net of accumulated amortization and impairment charges. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 45 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6388964&loc=d3e16212-109274 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph ((a)(1),(b)) -URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16323-109275 + Details
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