Quarterly report pursuant to Section 13 or 15(d)

Fair Value Measurement- Fair Value and Carrying Value of Long-term Debt (Details)

v2.4.1.9
Fair Value Measurement- Fair Value and Carrying Value of Long-term Debt (Details) (USD $)
In Thousands, unless otherwise specified
Mar. 31, 2015
Dec. 31, 2014
Fair Value Disclosures [Abstract]    
Long-term debt value, fair value $ 97,284us-gaap_LongTermDebtFairValue $ 102,362us-gaap_LongTermDebtFairValue
Long-term debt value, carrying value $ 97,231us-gaap_LongTermDebt $ 102,292us-gaap_LongTermDebt