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FAIR VALUE DISCLOSURES FAIR VALUE DISCLOSURES - Reconciliation of Gains and Losses on Level 3 Assets (Details)
$ in Thousands
3 Months Ended
Mar. 31, 2019
USD ($)
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]  
Beginning balance $ 14,715
Accretion (amortization) 7
Increase (decrease) in fair value 21
Settlements (1,388)
Ending balance $ 13,355