BASIS OF PRESENTATION - Impact of Adoption on Stockholders equity (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Jun. 30, 2021	Jun. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Class of Stock [Line Items]
Balance at beginning of period	$ 413,760	$ 398,521	$ 407,065	$ 396,288	$ 407,065	$ 396,288
Beginning accumulated other comprehensive income	5,882	2,868	6,740	3,792	6,740	3,792
Other comprehensive (loss) income	(2,994)	1,263	(858)	(924)	(3,852)	339
Ending accumulated other comprehensive income	2,888	4,131	5,882	2,868	2,888	4,131
Balance at end of period	418,435	399,171	413,760	398,521	418,435	399,171
As Reported
Class of Stock [Line Items]
Balance at beginning of period	415,572	404,174	411,341	396,407	411,341	396,407
Beginning accumulated other comprehensive income	7,694	8,521	11,016	3,911	11,016	3,911
Other comprehensive (loss) income		884	(3,322)	4,610		5,494
Ending accumulated other comprehensive income		9,405	7,694	8,521		9,405
Balance at end of period		404,445	415,572	404,174		404,445
Adjustment
Class of Stock [Line Items]
Balance at beginning of period	(1,812)	(5,653)	(4,276)	(119)	(4,276)	(119)
Beginning accumulated other comprehensive income	$ (1,812)	(5,653)	(4,276)	(119)	$ (4,276)	(119)
Other comprehensive (loss) income		379	2,464	(5,534)		(5,155)
Ending accumulated other comprehensive income		(5,274)	(1,812)	(5,653)		(5,274)
Balance at end of period		$ (5,274)	$ (1,812)	$ (5,653)		$ (5,274)