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Business Segment Information - Property And Equipment Net Of Accumulated Depreciation By Geographic Region (Details) - USD ($) $ in Thousands | Dec. 31, 2017 | Dec. 31, 2016
--- | --- | ---
Segment Reporting Information [Line Items] |  |
Property and equipment, net | $ 1,805,989 | $ 1,651,610
United States [Member] |  |
Segment Reporting Information [Line Items] |  |
Property and equipment, net | 894,680 | 956,458
United Kingdom [Member] |  |
Segment Reporting Information [Line Items] |  |
Property and equipment, net | 270,499 | 299,699
Brazil [Member] |  |
Segment Reporting Information [Line Items] |  |
Property and equipment, net | 334,454 | 123,461
Singapore [Member] |  |
Segment Reporting Information [Line Items] |  |
Property and equipment, net | 295,798 | 194,649
Other [Member] |  |
Segment Reporting Information [Line Items] |  |
Property and equipment, net | $ 10,558 | $ 77,343

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- Definition Amount after accumulated depreciation, depletion and amortization of physical assets used in the normal conduct of business to produce goods and services and not intended for resale. Examples include, but are not limited to, land, buildings, machinery and equipment, office equipment, and furniture and fixtures. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(13)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(14)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-03(a)(8)) -URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 360 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6391035&loc=d3e2868-110229 + Details
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