LEASES - Assets and liabilities (Details) $ in Thousands	3 Months Ended
	Sep. 30, 2019 USD ($)
Assets:
Operating lease right-of-use assets	$ 35,556
Operating Lease, Right-of-Use Asset, Statement of Financial Position [Extensible List]	Operating lease right-of-use assets
Liabilities
Current - operating leases	$ 11,066
Non-current - operating leases	$ 30,165
Operating Lease, Liability, Noncurrent, Statement of Financial Position [Extensible List]	Non-current - operating leases
Impairment of acceleration of remaining balance of ROU assets	$ 4,600
ASU No. 2016-02, Leases (Topic 842)
Liabilities
Total lease liabilities	$ 41,231