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Commitments and Contingencies - Schedule of Contributions made to Multiemployer Plans (Details) - USD ($) $ in Thousands | 12 Months Ended
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Dec. 31, 2016 | Dec. 31, 2015 | Dec. 31, 2014
Multiemployer Plans [Line Items] |  |  |
Contributions | $ 11,977 | $ 11,992 | $ 10,818
Pension Plans [Member] |  |  |
Multiemployer Plans [Line Items] |  |  |
Contributions | 3,155 | 3,077 | 2,871
Pension Plans [Member] | Multiemployer Plan, Individually Insignificant Multiemployer Plans [Member] |  |  |
Multiemployer Plans [Line Items] |  |  |
Contributions | 800 | 700 | 800
Health Plans [Member] |  |  |
Multiemployer Plans [Line Items] |  |  |
Contributions | 8,280 | 8,296 | 7,628
Health Plans [Member] | Multiemployer Plan, Individually Insignificant Multiemployer Plans [Member] |  |  |
Multiemployer Plans [Line Items] |  |  |
Contributions | 1,600 | 1,400 | 1,500
Other [Member] |  |  |
Multiemployer Plans [Line Items] |  |  |
Contributions | 542 | 619 | 319
Other [Member] | Multiemployer Plan, Individually Insignificant Multiemployer Plans [Member] |  |  |
Multiemployer Plans [Line Items] |  |  |
Contributions | $ 200 | $ 200 | $ 80

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- Definition Amount of contributions made to multiemployer plans by the employer. A multiemployer plan is a pension or postretirement benefit plan to which two or more unrelated employers contribute where assets contributed by one participating employer may be used to provide benefits to employees of other participating employers. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 80 -Section 50 -Paragraph 11 -URI http://asc.fasb.org/extlink&oid=65877416&loc=SL14450702-114947 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 80 -Section 50 -Paragraph 9 -URI http://asc.fasb.org/extlink&oid=65877416&loc=SL14450691-114947 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 80 -Section 50 -Paragraph 5 -Subparagraph (e)(1) -URI http://asc.fasb.org/extlink&oid=65877416&loc=SL14450657-114947 + Details
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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
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- Details
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- Details
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- Details
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- Details
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