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Commitments, Contingencies and Legal Proceedings - Summary of Minimum Annual Payment Due on Noncancelable Operating Lease (Detail) $ in Thousands | Dec. 31, 2017 USD ($)
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Leases [Member] |
Operating Leased Assets [Line Items] |
2018 | $ 12,683
2019 | 5,926
2020 | 4,393
2021 | 3,276
2022 | 2,932
Thereafter | 8,431
Other [Member] |
Operating Leased Assets [Line Items] |
2018 | 115,710
2019 | 31,415
2020 | 18,674
2021 | 1,705
2022 | 4
Thereafter | $ 1

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- Definition Future rental payments receivable within one year of the balance sheet date under an operating lease. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 840 -SubTopic 20 -Section 50 -Paragraph 4 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=84164653&loc=d3e41551-112718 + Details
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