ACQUISITIONS - CedarPoint (Details) - USD ($) $ in Thousands	Mar. 28, 2017	Mar. 31, 2017	Dec. 31, 2016
Business Acquisition [Line Items]
Goodwill		$ 50,807	$ 48,836
CedarPoint Investment Advisors, Inc [Member]
Business Acquisition [Line Items]
Assets under administration	$ 180,000
Consideration transferred, shares	120,000
Consideration transferred, value of shares	$ 3,900
Consideration transferred, shares, in escrow	18,000
Goodwill	$ 2,000
CedarPoint Investment Advisors, Inc [Member] | Customer relationship
Business Acquisition [Line Items]
Intangibles	$ 2,000
Amortization period	10 years