SHARE BASED COMPENSATION - Summary of Share Option Activity (Detail) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended		6 Months Ended		12 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020	Dec. 31, 2020
Number of Common Shares
Beginning balance (in shares)			430,038
Granted (in shares)			0
Exercised (in shares)	(38,158)	(2,625)	(140,523)	(8,638)
Forfeited (in shares)			0
Expired (in shares)			0
Ending balance (in shares)	289,515		289,515		430,038
Exercisable at end of period (in shares)	289,515		289,515
Weighted Average Exercise Share Price
Beginning balance (in dollars per share)			$ 14.97
Granted (in dollars per share)			0
Exercised (in dollars per share)			14.35
Forfeited (in dollars per share)			0
Expired (in dollars per share)			0
Ending balance (in dollars per share)	$ 15.27		15.27		$ 14.97
Exercisable at end of period (in dollars per share)	$ 15.27		$ 15.27
Weighted Average Contractual Remaining Life (Years)
Balance at end of period			2 years 6 months		3 years
Exercisable at end of period			2 years 6 months
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Aggregate Intrinsic Value [Abstract]
Beginning balance			$ 6,828
Exercised			3,654
Ending balance	$ 8,789		8,789		$ 6,828
Exercisable at end of period	$ 8,789		$ 8,789