Quarterly report pursuant to Section 13 or 15(d)

Fair Value - Narrative (Details)

v3.2.0.727
Fair Value - Narrative (Details) - USD ($)
Jun. 30, 2015
Dec. 31, 2014
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Total assets measured at fair value $ 362,454,000 $ 386,344,000
Level 3    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Total assets measured at fair value 0 0
Total liabilities measured at fair value $ 0 $ 0