LEASES - Schedule of Outstanding Operating and Finance Obligations (Details) $ in Thousands	Jun. 30, 2019 USD ($)
Operating Leases
2019	$ 16,975
2020	31,711
2021	29,688
2022	27,174
2023	25,786
Thereafter	168,856
Total undiscounted obligations	300,190
Less imputed interest	(83,269)
Present value of lease obligations	216,921
Finance Leases
2019	4,042
2020	7,938
2021	7,908
2022	7,166
2023	7,138
Thereafter	21,217
Total undiscounted obligations	55,409
Less imputed interest	(15,393)
Present value of lease obligations	40,016
Total
2019	21,017
2020	39,649
2021	37,596
2022	34,340
2023	32,924
Thereafter	190,073
Total undiscounted obligations	355,599
Less imputed interest	(98,662)
Present value of lease obligations	$ 256,937