NEW ACCOUNTING STANDARDS - Adoption of New Accounting Standards (Details) - USD ($) $ in Thousands		9 Months Ended
	Jan. 01, 2019	Sep. 30, 2019
Adoption of New Accounting Standards
Operating lease right-of-use assets		$ 26,863
Net lease liabilities		$ 28,104
Lease, Practical Expedients, Package [true false]		true
Lease, Practical Expedient, Use of Hindsight [true false]		false
ASU 2016-02
Adoption of New Accounting Standards
Operating lease right-of-use assets	$ 28,400
Net lease liabilities	29,300
Cumulative-effect adjustment, after tax	5,652
Net deferred taxes	$ 1,387