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Indebtedness - Summarizes Total Payments under Company's Debt Arrangements (Detail) (USD $)
In Thousands, unless otherwise specified
Dec. 31, 2014
Debt Instrument [Line Items]  
2015 $ 2,686us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInNextTwelveMonths
2016 2,675us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearTwo
2017 171us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearThree
2018 171us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFour
2019 171us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFive
Thereafter 1,224us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalAfterYearFive
Total Payments 7,098us-gaap_LongTermDebt
Long-term Debt [Member]  
Debt Instrument [Line Items]  
2015 171us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInNextTwelveMonths
/ us-gaap_ExtinguishmentOfDebtAxis
= us-gaap_LongTermDebtMember
[1]
2016 171us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearTwo
/ us-gaap_ExtinguishmentOfDebtAxis
= us-gaap_LongTermDebtMember
[1]
2017 171us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearThree
/ us-gaap_ExtinguishmentOfDebtAxis
= us-gaap_LongTermDebtMember
[1]
2018 171us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFour
/ us-gaap_ExtinguishmentOfDebtAxis
= us-gaap_LongTermDebtMember
[1]
2019 171us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFive
/ us-gaap_ExtinguishmentOfDebtAxis
= us-gaap_LongTermDebtMember
[1]
Thereafter 1,224us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalAfterYearFive
/ us-gaap_ExtinguishmentOfDebtAxis
= us-gaap_LongTermDebtMember
[1]
Total Payments 2,079us-gaap_LongTermDebt
/ us-gaap_ExtinguishmentOfDebtAxis
= us-gaap_LongTermDebtMember
[1]
Notes Payable [Member]  
Debt Instrument [Line Items]  
2015 2,515us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInNextTwelveMonths
/ us-gaap_ExtinguishmentOfDebtAxis
= us-gaap_NotesPayableOtherPayablesMember
[1]
2016 2,504us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearTwo
/ us-gaap_ExtinguishmentOfDebtAxis
= us-gaap_NotesPayableOtherPayablesMember
[1]
Total Payments $ 5,019us-gaap_LongTermDebt
/ us-gaap_ExtinguishmentOfDebtAxis
= us-gaap_NotesPayableOtherPayablesMember
[1]
[1] Interest is included