LEASES - Schedule of Future Lease Payments (Details) $ in Thousands	Jun. 30, 2019 USD ($)
Operating Leases
2019 (remaining six months)	$ 27,763
2020	47,602
2021	35,959
2022	28,374
2023	20,388
2024	13,930
Thereafter	27,429
Total future lease payments	201,445
Amount representing interest	(28,177)
Total lease liabilities	173,268
Finance Lease
2019 (remaining six months)	871
2020	1,777
2021	1,813
2022	1,849
2023	1,886
2024	1,923
Thereafter	40,636
Total future lease payments	50,755
Amount representing interest	(26,655)
Total lease liabilities	$ 24,100