Shares Repurchased - Additional Information (Detail) - USD ($) $ in Thousands	1 Months Ended	3 Months Ended
	Apr. 24, 2019	Mar. 31, 2020	Mar. 31, 2019
Class of Stock [Line Items]
Repurchased common stock, value		$ 1,495	$ 2,005
Total Leverage Ratio		1.75 to 1.00
Three-Year Share Repurchase Program [Member]
Class of Stock [Line Items]
Repurchased common stock, shares		385,399	311,213
Repurchased common stock, value		$ 1,495	$ 2,005
Dollar amount remaining available for future share repurchases		$ 81,894
Share repurchase program, extended term date	Apr. 27, 2022