LEASES - Leased assets and liabilities (Details) $ in Thousands	Jun. 30, 2019 USD ($)
Assets:
Operating lease assets	$ 17,575
Finance right-of-use lease assets	3,028
Total	20,603
Finance leased assets - accumulated amortization	1,500
Liabilities:
Operating lease, current	4,932
Finance lease, current	837
Long-term operating lease liabilities	12,553
Finance lease, long term	2,269
Total	$ 20,591