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Fair Value of Senior Notes (Detail) $ in Thousands	Mar. 31, 2016 USD ($)
Series 2005A Tranche C [Member]
Fair Value Of Financial Instruments [Line Items]
Fair Value of Senior Notes	$ 60,271
Series 2007A Tranche B [Member]
Fair Value Of Financial Instruments [Line Items]
Fair Value of Senior Notes	8,367
Series 2007A Tranche C [Member]
Fair Value Of Financial Instruments [Line Items]
Fair Value of Senior Notes	25,742
Series 2007A Tranche D [Member]
Fair Value Of Financial Instruments [Line Items]
Fair Value of Senior Notes	$ 40,555

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- Definition

Fair value of financial instruments.

+ References

No definition available.

+ Details

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Balance Type:	na
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- Definition

The fair value amount of long-term debt whether such amount is presented as a separate caption or as a parenthetical disclosure. Additionally, this element may be used in connection with the fair value disclosures required in the footnote disclosures to the financial statements. The element may be used in both the balance sheet and disclosure in the same submission.

+ References

No definition available.

+ Details

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Balance Type:	credit
Period Type:	instant

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- Details

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- Details

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X

- Details

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X

- Details

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