Annual report pursuant to Section 13 and 15(d)

Notes Payable to Former Stockholders - Schedule of Future Minimum Principal and Interest Payments for Notes for Restricted Stock and SARs (Detail)

v2.4.1.9
Notes Payable to Former Stockholders - Schedule of Future Minimum Principal and Interest Payments for Notes for Restricted Stock and SARs (Detail) (USD $)
In Thousands, unless otherwise specified
Dec. 31, 2014
Dec. 31, 2013
Equity Method Investments And Cost Method Investments [Abstract]    
2015 $ 894us-gaap_OtherNotesPayableCurrent $ 851us-gaap_OtherNotesPayableCurrent
2016 939us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearTwo  
2017 985us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearThree  
2018 1,035us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFour  
2019 1,087us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFive  
Thereafter 6,564us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalAfterYearFive  
Total $ 11,504us-gaap_OtherNotesPayable