Recently Issued Accounting Standards - Additional Information (Detail) $ in Millions	6 Months Ended
Jun. 30, 2016 USD ($)
Accounting Standards Update Number Two Thousand Fifteen March [Member]
New Accounting Pronouncements Or Change In Accounting Principle [Line Items]
Reclassification of other assets to long-term debt	$ 11

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.

No definition available.

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Balance Type:	na
Period Type:	duration