Equity - Additional Information (Detail) - USD ($) $ in Thousands		1 Months Ended		12 Months Ended
	Dec. 11, 2020	Jun. 30, 2018	Dec. 31, 2016	Dec. 31, 2020	Dec. 31, 2019
Class Of Stock [Line Items]
Common Stock, shares authorized				55,000,000	55,000,000
Preferred stock, shares authorized				4,991,000
Common Stock, shares issued				32,921,341	32,674,354
Common Stock, shares outstanding				32,921,341	32,674,354
Preferred stock, shares issued				0
Preferred stock, shares outstanding				0
Stock repurchase program period			3 years
Stock repurchase program, authorized amount			$ 100,000
Authorized increase and extension in stock repurchase program amount		$ 300,000
Stock repurchase program extended expiration date		2020-12
Shares repurchased				9,092
Remaining authorized repurchase amount				$ 74,226
2020 Stock Repurchase Program
Class Of Stock [Line Items]
Stock repurchase program period	3 years
Stock repurchase program expiration date	Dec. 15, 2023
Maximum
Class Of Stock [Line Items]
Shares issued				59,991,000
Maximum | 2020 Stock Repurchase Program
Class Of Stock [Line Items]
Stock repurchase program, authorized to repurchase amount	150,000,000