BASIS OF PRESENTATION AND ACCOUNTING POLICIES, Recently Adopted Accounting Standard (Details) - USD ($) $ in Thousands	Jun. 30, 2019	Mar. 31, 2019	Dec. 31, 2018
Recently Adopted Accounting Standards [Abstract]
Right-of-use assets	$ 17,885		$ 0
Lease liabilities	18,359
Accumulated Other Comprehensive Income [Member]
Recently Adopted Accounting Standards [Abstract]
Reclassification of certain tax effects from accumulated other comprehensive income			(463)
ASU 2016-02 [Member]
Recently Adopted Accounting Standards [Abstract]
Right-of-use assets	20,700
Lease liabilities	21,000
ASU 2018-02 [Member]
Recently Adopted Accounting Standards [Abstract]
Reclassification of certain tax effects from accumulated other comprehensive income			0
ASU 2018-02 [Member] | Retained Earnings [Member]
Recently Adopted Accounting Standards [Abstract]
Reclassification of certain tax effects from accumulated other comprehensive income		$ 463	$ 463
ASU 2018-02 [Member] | Accumulated Other Comprehensive Income [Member]
Recently Adopted Accounting Standards [Abstract]
Reclassification of certain tax effects from accumulated other comprehensive income	$ (463)	$ (463)