Recent Accounting Pronouncements - Additional Information (Detail) - USD ($) $ in Millions	9 Months Ended	12 Months Ended
Sep. 30, 2016	Dec. 31, 2015
Accounting Changes and Error Corrections [Abstract]
Reclassification of deferred financing costs from other assets to long-term debt, net	$ 15.4	$ 20.2

Reclassification of deferred financing costs from other assets, net to long-term debt, net.

No definition available.

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Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration