LEASES (Details) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2019 USD ($)		Jun. 30, 2019 USD ($)
Operating Leases [Abstract]
Term of option to terminate			1 year
Components of Lease Expense [Abstract]
Operating lease cost	$ 2,145		$ 4,262
Short-term lease cost	49	[1]	103	[1]
Total lease cost	2,194		4,365
Cash paid for amounts included in the measurement of lease liabilities [Abstract]
Operating cash outflows for operating leases			3,997
Right-of-use assets obtained in exchange for lease obligations [Abstract]
Operating leases			7,712
Operating leases [Abstract]
Operating lease right-of-use assets	37,650		37,650
Operating lease liabilities	$ 38,368		$ 38,368
Weighted average remaining lease term [Abstract]
Operating leases	6 years 10 months 24 days		6 years 10 months 24 days
Weighted average discount rate [Abstract]
Operating leases	3.10%		3.10%
Maturities of Lease Liabilities [Abstract]
Jul - Dec 2019	$ 4,351		$ 4,351
2020	8,284		8,284
2021	6,703		6,703
2022	5,407		5,407
2023	4,437		4,437
Thereafter	13,911		13,911
Total lease payments	43,093		43,093
Less imputed interest	(4,725)		(4,725)
Total	$ 38,368		$ 38,368
Operating lease that has not yet commenced [Abstract]
Lease term	5 years		5 years
Right-of-use assets	$ 1,300		$ 1,300
Lease liabilities	$ 1,300		$ 1,300
Minimum [Member]
Operating Leases [Abstract]
Remaining term of lease			1 year
Term of option to extend	1 year		1 year
Maximum [Member]
Operating Leases [Abstract]
Remaining term of lease			16 years
Term of option to extend	40 years		40 years
706 North Clinton, LLC [Member]
Operating leases [Abstract]
Operating lease right-of-use assets	$ 5,100		$ 5,100
Operating lease liabilities	$ 5,139		$ 5,139
Weighted average remaining lease term [Abstract]
Operating leases	10 years 4 months 24 days		10 years 4 months 24 days
Weighted average discount rate [Abstract]
Operating leases	3.67%		3.67%
Maturities of Lease Liabilities [Abstract]
Jul - Dec 2019	$ 295		$ 295
2020	591		591
2021	591		591
2022	591		591
2023	591		591
Thereafter	3,538		3,538
Total lease payments	6,197		6,197
Less imputed interest	(1,058)		(1,058)
Total	$ 5,139		$ 5,139
Membership interest	50.00%		50.00%

[1] Short-term lease cost includes the cost of leases with terms of twelve months or less, excluding leases with terms of one month or less.