Stock-based Compensation - Performance Units (Detail)	6 Months Ended
	Jun. 30, 2022 shares
2021
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Target number of shares	843,000
2022
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Target number of shares	414,000
2020
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Target number of shares	500,500
2019
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Target number of shares	489,800
2018
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Target number of shares	310,700