DISCONTINUED OPERATIONS (Details) $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2016 USD ($) Campus	Sep. 30, 2016 USD ($)	Jun. 30, 2016 USD ($)	Mar. 31, 2016 USD ($)	Dec. 31, 2015 USD ($) Campus	Sep. 30, 2015 USD ($)	Jun. 30, 2015 USD ($)	Mar. 31, 2015 USD ($)	Dec. 31, 2016 USD ($) Campus	Dec. 31, 2015 USD ($) Campus	Dec. 31, 2014 USD ($) Site
Result of discontinued operations [Abstract]
Net loss from discontinued operations	$ (18,711)	$ (2,168)	$ (1,496)	$ (1,430)	$ 4,679	$ (2,636)	$ (3,436)	$ (2,097)	$ (23,806)	$ (3,491)	$ (30,584)
Impairments of goodwill and long-lived assets									$ 3,902	$ 216	$ 21,885
Healthcare and Other Professions Business Segment [Member]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Number of campuses | Campus	15				15				15	15
Florida [Member]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Number of training sites approved by board of directors to cease operations | Site											5
Fifteen Campuses [Member]
Result of discontinued operations [Abstract]
Revenue									$ 88,649	$ 97,846	$ 106,982
Loss before income tax									(6,341)	(3,491)	(26,684)
Income tax benefit									0	0	(2,746)
Net loss from discontinued operations									(6,341)	$ (3,491)	(23,938)
Impairments of goodwill and long-lived assets									$ 17,500		19,000
Five Training Sites [Member]
Result of discontinued operations [Abstract]
Impairments of goodwill and long-lived assets											2,100
Five Training Sites [Member] | Florida [Member]
Result of discontinued operations [Abstract]
Revenue											2,140
Loss before income tax											(6,731)
Income tax benefit											(85)
Net loss from discontinued operations											$ (6,646)