COMMITMENTS AND CONTINGENCIES Operating Leases, Rent Expense, Minimum Rentals (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Commitments And Contingencies [Line Items]
Operating Leases, Rent Expense, Sublease Rentals	$ 5,506
2016	17,476
2017	13,717
2018	12,150
2019	8,940
2020	5,443
Thereafter	2,584
Total future minimum payments due	60,310
Office and general
Commitments And Contingencies [Line Items]
Operating leases, rent expense	$ 11,091	$ 14,834	$ 16,801