Contractual interest rate for funds borrowed, under the debt agreement.

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Date when the debt instrument is scheduled to be fully repaid, in CCYY-MM-DD format.

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The percentage of ownership of common stock or equity participation in the investee accounted for under the equity method of accounting.

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Carrying value as of the balance sheet date, including the current and noncurrent portions, of collateralized debt obligations (with maturities initially due after one year or beyond the operating cycle, if longer). Such obligations include mortgage loans, chattel loans, and any other borrowings secured by assets of the borrower.

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Guarantor Subsidiaries - Additional Information (Detail) (USD $) In Thousands, unless otherwise specified		1 Months Ended	12 Months Ended
	Jun. 30, 2012	Jun. 30, 2012 Senior Secured Notes [Member]	Dec. 31, 2012 7.375% Senior Secured Notes [Member]	Jun. 30, 2012 7.375% Senior Secured Notes [Member]	Apr. 30, 2012 7.375% Senior Secured Notes [Member]
Debt Instrument [Line Items]
Senior secure notes issued		$ 210,000
Senior secured note interest rate				7.375%	7.375%
Acquisition of common stock	100.00%
Senior secured notes maturity date		May 15, 2019	May 15, 2019