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Other Comprehensive Loss - Changes in Accumulated OCI by Component (Parenthetical) (Detail) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014
Accumulated Other Comprehensive Income Loss [Line Items]
Change in cash flow hedges reclassed to earnings	$ 154	$ 118	$ 829	$ 236
Other Income (Expense) [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			300
Equity in Net Income of Joint Ventures [Member]
Accumulated Other Comprehensive Income Loss [Line Items]
Change in cash flow hedges reclassed to earnings			$ 100

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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.

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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=36458714&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=56946850&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=36458714&loc=d3e637-108580

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