BASIS OF PRESENTATION - Additional Information (Detail) $ in Thousands	1 Months Ended	3 Months Ended
	Apr. 30, 2020 USD ($) loan	Mar. 31, 2020 USD ($)	Dec. 31, 2019 USD ($)
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Financing receivable, after allowance for credit loss		$ 2,817,365	$ 2,767,008
COVID-19
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Loan deferral period		90 days
Subsequent Event | COVID-19
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Loans approved, amount	$ 644,000
Financing receivable, term	2 years
Financing receivable, stated interest rate	1.00%
Financing receivable, after allowance for credit loss	$ 50,000
Subsequent Event | Minimum | COVID-19
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Number of loans approved | loan	420
Number of loans issued or in process | loan	325