Quarterly report pursuant to Section 13 or 15(d)

Long-Term Debt - Summary of Company's Current Debt Portfolio (Detail)

v2.4.0.8
Long-Term Debt - Summary of Company's Current Debt Portfolio (Detail) (USD $)
In Thousands, unless otherwise specified
Jun. 30, 2013
Dec. 31, 2012
Debt Instrument [Line Items]    
Total debt $ 599,147 $ 479,205
Less current portion 10,000 10,000
Total long-term debt 589,147 469,205
9.125% Senior Notes, due April 2018 [Member]
   
Debt Instrument [Line Items]    
Total debt 429,147 429,205
Term Note Due April 2018 [Member]
   
Debt Instrument [Line Items]    
Total debt 125,000 0
Term Note Due December 2017 [Member]
   
Debt Instrument [Line Items]    
Total debt $ 45,000 $ 50,000