STOCKHOLDERS' EQUITY - Narrative (Detail) - USD ($)	3 Months Ended	12 Months Ended
	Mar. 31, 2020	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017	Mar. 05, 2020	Oct. 22, 2014	Nov. 01, 2007
Class of Stock [Line Items]
Stock repurchase program, authorized amount							$ 50,000,000
Stock repurchase program, additional authorized amount						$ 30,000,000
Repurchase of stock (in shares)		387,309	0	48,687
Repurchased shares, value		$ 2,741,000		$ 328,000
Stock repurchase program, average cost (in dollars per share)		$ 7.08		$ 6.73
Stock repurchase program, remaining authorized repurchase amount		$ 30,600,000
Subsequent Event
Class of Stock [Line Items]
Repurchase of stock (in shares)	587,989
Repurchased shares, value	$ 4,400,000
Stock repurchase program, average cost (in dollars per share)	$ 7.52
Stock repurchase program, remaining authorized repurchase amount					$ 26,200,000