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, 2014
Dec. 31, 2013
Dec. 14, 2012
Debt Instrument [Line Items]      
Total debt $ 620,000 $ 653,781  
Less current portion 10,000 25,000  
Total long-term debt 610,000 628,781  
6.75% Senior Notes, due July 2022 [Member]
     
Debt Instrument [Line Items]      
Total debt 360,000 0  
7.50% Senior Notes, due August 2020 [Member]
     
Debt Instrument [Line Items]      
Total debt 225,000 225,000  
9.125% Senior Notes, due April 2018 [Member]
     
Debt Instrument [Line Items]      
Total debt 0 428,781  
Term Note Due December 2017 [Member]
     
Debt Instrument [Line Items]      
Total debt $ 35,000 $ 0 $ 50,000