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Other Comprehensive Loss - Changes in Accumulated OCI by Component (Parenthetical) (Detail) - USD ($) $ in Thousands | 12 Months Ended
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Dec. 31, 2017 | Dec. 31, 2016 | Dec. 31, 2015
Accumulated Other Comprehensive Income Loss [Line Items] |  |  |
Change in cash flow hedges reclassed to earnings | $ (828) | $ (688) | $ (1,173)
Other Income (Expense), Net [Member] |  |  |
Accumulated Other Comprehensive Income Loss [Line Items] |  |  |
Change in cash flow hedges reclassed to earnings |  |  | 600
Interest Expense [Member] |  |  |
Accumulated Other Comprehensive Income Loss [Line Items] |  |  |
Change in cash flow hedges reclassed to earnings | $ 800 | 800 | 700
Equity in Net Income of Joint Ventures [Member] |  |  |
Accumulated Other Comprehensive Income Loss [Line Items] |  |  |
Change in cash flow hedges reclassed to earnings |  | $ 100 | $ 100

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- Definition Amount after tax of reclassification adjustment from accumulated other comprehensive income of accumulated gain (loss) realized from derivative instruments designated and qualifying as the effective portion of cash flow hedges and an entity's share of an equity investee's deferred hedging gain (loss). + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 15 -URI http://asc.fasb.org/extlink&oid=84228862&loc=d3e689-108580 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 4 -Subparagraph c -URI http://asc.fasb.org/extlink&oid=84234895&loc=d3e41638-113959 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 11 -URI http://asc.fasb.org/extlink&oid=84228862&loc=d3e637-108580 + Details
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