Revenue - Remaining Performance Obligations (Detail 1)	Dec. 31, 2020
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date: 2021-01-01
Remaining Performance Obligations [Line Items]
Remaining performance obligations, expected satisfaction, percentage	90.00%
Remaining performance obligations, expected timing of satisfaction	12 months
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date: 2022-01-01
Remaining Performance Obligations [Line Items]
Remaining performance obligations, expected satisfaction, percentage	10.00%
Remaining performance obligations, expected timing of satisfaction