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Debt - Instruments (Details) - USD ($) | Oct. 26, 2016 | Sep. 30, 2016 | Dec. 31, 2015
--- | --- | --- | ---
Term loans |  |  |
Schedule Of Debt Instruments [Line Items] |  |  |
Amount of term loan outstanding |  | $ 323,000,000 | $ 333,200,000
Credit facility |  |  |
Schedule Of Debt Instruments [Line Items] |  |  |
Amount outstanding |  | 796,000,000 | 416,000,000
Unused portion of facility |  | 457,600,000 | 838,500,000
Letters of credit and bankers acceptance |  |  |
Schedule Of Debt Instruments [Line Items] |  |  |
Amount outstanding |  | 5,100,000 | 5,500,000
Other uncommited credit lines |  |  |
Schedule Of Debt Instruments [Line Items] |  |  |
Letters of credit, outstanding amount |  | $ 156,800,000 | $ 208,400,000
Subsequent Event | Addition to Term loan |  |  |
Schedule Of Debt Instruments [Line Items] |  |  |
Term loan | $ 520,000,000 |  |
Subsequent Event | Term loans |  |  |
Schedule Of Debt Instruments [Line Items] |  |  |
Term loan | 840,000,000 |  |
Subsequent Event | Credit facility |  |  |
Schedule Of Debt Instruments [Line Items] |  |  |
Maximum additional borrowings available at the entity's request subject to satisfaction of certain conditions | $ 200,000,000 |  |

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- Definition Maximum additional borrowing capacity available under the credit facility at the entity's request subject to satisfaction of certain conditions. + References No definition available. + Details
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Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

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- Definition [Line Items] for Schedule of Debt Instruments [Table] + References No definition available. + Details
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- Definition Face (par) amount of debt instrument at time of issuance. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 835 -SubTopic 30 -Section 55 -Paragraph 8 -URI http://asc.fasb.org/extlink&oid=64930739&loc=d3e28878-108400 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 835 -SubTopic 30 -Section 45 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=64930785&loc=d3e28551-108399 + Details
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- Definition Represents the aggregate of total long-term debt, including current maturities and short-term debt. + References No definition available. + Details
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Balance Type: | credit
Period Type: | instant

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- Definition The total amount of the contingent obligation under letters of credit outstanding as of the reporting date. + References No definition available. + Details
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Balance Type: | credit
Period Type: | instant

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- Definition Fair value of the amount outstanding under the credit facility. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 825 -SubTopic 10 -Section 50 -Paragraph 10 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=73719730&loc=d3e13433-108611 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 825 -SubTopic 10 -Section 50 -Paragraph 12 -URI http://asc.fasb.org/extlink&oid=73719730&loc=d3e13476-108611 + Details
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- Definition Amount of borrowing capacity currently available under the credit facility (current borrowing capacity less the amount of borrowings outstanding). + 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 210.5-02.19(b),22(b)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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