Quarterly report pursuant to Section 13 or 15(d)

Long-Term Debt (Aggregate Contractual Maturities of Long-Term Debt) (Detail)

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Long-Term Debt (Aggregate Contractual Maturities of Long-Term Debt) (Detail) (USD $)
In Thousands, unless otherwise specified
Sep. 30, 2012
Segment Reporting Information [Line Items]  
2012   
2013 9,375
2014 12,500
2015 17,188
2016 18,750
2017 192,187
Long-term Debt, Gross, Total $ 250,000