Annual report pursuant to Section 13 and 15(d)

Long-Term Debt and Notes Payable - Principal Maturities of Long-Term Debt (Detail)

v2.4.1.9
Long-Term Debt and Notes Payable - Principal Maturities of Long-Term Debt (Detail) (USD $)
In Thousands, unless otherwise specified
Dec. 31, 2014
Dec. 31, 2013
Debt Disclosure [Abstract]    
2015 $ 2,796us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInNextTwelveMonths  
2016 2,725us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearTwo  
2017 2,829us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearThree  
2018 2,808us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFour  
2019 166,874us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFive  
Thereafter 4,976us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalAfterYearFive  
Total Long-term Debt $ 183,008us-gaap_LongTermDebt $ 200,320us-gaap_LongTermDebt