LEASES - Maturities of Operating and Financing Lease Liabilities (Details) $ in Thousands	Mar. 31, 2020 USD ($)
Operating Leases
2020	$ 51,073
2021	52,063
2022	53,072
2023	54,015
2024	53,898
After 2024	186,982
Total lease payments	451,103
Less: Interest	(137,387)
Present value of lease liabilities	313,716
Finance Leases
2020	269
2021	233
2022	136
2023	35
2024	7
After 2024	0
Total lease payments	680
Less: Interest	(56)
Present value of lease liabilities	624
Operating and Finance Lease Liabilities Payments Due [Abstract]
2020	51,342
2021	52,296
2022	53,208
2023	54,050
2024	53,905
After 2024	186,982
Total lease payments	451,783
Less: Interest	(137,443)
Present value of lease liabilities	$ 314,340