Fair Value, Unobservable Input Reconciliation (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014
Fair value assets measured on recurring basis unobservable input reconciliation calculation [Roll Forward]
Beginning of period balance	$ 12,208	$ 0
Total gains or losses (realized) included in income	(104)	0
Purchases	2,284	0
Settlements	(8,068)	0
Transfers into Level 3	11,586	12,208
Transfers out of level 3	(1,113)	0
End of period balance	$ 16,793	$ 12,208