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Long-Term Debt - Additional Information (Detail) (Note Payable)	Jul. 18, 2013
Note Payable
Debt Instrument [Line Items]
Average interest rate on long-term debt	1.30%

X

- Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Weighted average interest rate of long-term debt outstanding.

+ References

No definition available.

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant