Off-Balance Sheet Arrangements, Commitments And Contingencies - Leases (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Noncancelable future operating lease commitments
2016	$ 2,408
2017	1,870
2018	1,342
2019	1,044
2020	722
Thereafter	3,415
Total	10,801
Rent expense under noncancelable operating lease obligations, net of income from noncancelable subleases	$ 1,900	$ 1,400	$ 1,400