Quarterly report pursuant to Section 13 or 15(d)

Fair Value Measurements (Narrative) (Detail)

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Fair Value Measurements (Narrative) (Detail) (8.5% Senior Notes)
Jun. 30, 2012
8.5% Senior Notes
 
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]  
Senior Notes interest rate 8.50%