DISCONTINUED OPERATIONS - Narrative (Details) - USD ($) $ in Thousands		12 Months Ended
Jun. 30, 2016	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Proceeds from sale		$ 0	$ 48,292	$ 0
USI Insurance Services \| Discontinued Operations, Disposed of by Sale
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Gain on sale of subsidiary	$ 6,900	6,926	0	$ 0
Liabilities retained after sale	424	$ 0	$ 2,834
Proceeds from sale	$ 7,000

Amount before tax of gain (loss) not previously recognized resulting from the disposal of a discontinued operation.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
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