Stock-Based Compensation - Stock Repurchases - Additional Information (Detail) - USD ($) shares in Thousands	3 Months Ended	9 Months Ended
	Mar. 31, 2020	Sep. 30, 2020	Sep. 30, 2019	Nov. 04, 2020
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Repurchase of common stock	375,046
Expenses related to repurchase of shares	$ 2,000,000.0	$ 2,000,000	$ 0
Stock repurchase average price	5,360
Subsequent Events [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock repurchase program, authorized amount				$ 5,000,000.0
Maximum [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock repurchase program, authorized amount	$ 7,000,000.0
Maximum [Member] | Subsequent Events [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock repurchase program, authorized amount				$ 5,000,000.0