SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - (Details) - USD ($)	3 Months Ended	6 Months Ended
	Jun. 30, 2020	Jun. 30, 2021	Mar. 31, 2021	Dec. 31, 2020	Mar. 31, 2020	Dec. 31, 2019
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Impairment charges		$ 0
Adoption of CECL standard	$ 1,645,986,000	$ 1,986,663,000	$ 1,900,795,000	$ 1,850,785,000	$ 1,587,623,000	$ 1,572,252,000
Argentina
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Foreign currency, gain recognized	1,000,000.0
Maximum | Argentina | Revenue Benchmark | Geographic concentration risk
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Concentration risk percentage (less than)		2.00%
Retained Earnings
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Adoption of CECL standard	$ 1,573,392,000	$ 1,734,638,000	$ 1,704,336,000	$ 1,643,825,000	$ 1,554,665,000	1,523,820,000
Cumulative Effect, Period of Adoption, Adjustment
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Adoption of CECL standard						(1,377,000)
Cumulative Effect, Period of Adoption, Adjustment | Retained Earnings
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Adoption of CECL standard						(1,377,000)
Accounting Standards Update 2016-13 | Cumulative Effect, Period of Adoption, Adjustment | Retained Earnings
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Adoption of CECL standard						$ (1,400,000)