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Long-Term Debt - Summary of Company's Current Debt Portfolio (Detail) (USD $)
In Thousands, unless otherwise specified |
Dec. 31, 2013
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Dec. 31, 2012
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|---|---|---|
| Debt Instrument [Line Items] | ||
| Total debt | $ 653,781 | $ 479,205 |
| Less current portion | 25,000 | 10,000 |
| Total long-term debt | 628,781 | 469,205 |
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7.50% Senior Notes, due August 2020 (Issued July 30, 2013) [Member]
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| Debt Instrument [Line Items] | ||
| Total debt | 225,000 | 0 |
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9.125% Senior Notes, due April 2018 (Issued April 25, 2012) [Member]
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| Debt Instrument [Line Items] | ||
| Total debt | 428,781 | 429,205 |
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Term Loan [Member]
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| Debt Instrument [Line Items] | ||
| Total debt | $ 0 | $ 50,000 |