INCOME TAXES (DTA AND DTL TABLE) (DETAILS) - USD ($) $ in Thousands	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Deferred tax assets, gross
Accrued workers compensation, deferred compensation and employee benefits	$ 11,212	$ 10,509
Allowance for doubtful accounts, insurance and other accruals	3,348	4,860
Amortization of deferred rent liabilities	3,362	2,500
Net operating losses	20,253	19,522
Equity compensation	2,489	3,505
Customer acquisition and deferred revenue accruals	11,739	16,610
Federal and state tax credits, net	7,439	10,057
Depreciation and amortization	4,671	6,265
Unrealized losses on derivatives	13,815	16,644
DTA Contract Acquisition Costs	1,044	0
Other	2,331	2,655
Total deferred tax assets, gross	81,703	93,127
Valuation allowances	(9,949)	(10,139)	$ (10,721)	$ (10,792)
Deferred Tax Assets, Net of Valuation Allowance, Total	71,754	82,988
Deferred tax liabilities
Contract acquisition costs	0	(25,667)
Intangible Assets	(17,971)	(6,082)
Other	(357)	(2,490)
Total deferred tax liabilities	(18,328)	(34,239)
Deferred Tax Assets, Net, Total	$ 53,426	$ 48,749