Quarterly report pursuant to Section 13 or 15(d)

Revenue Recognition - Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction (Detail)

v3.20.2
Revenue Recognition - Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction (Detail)
$ in Thousands
Sep. 30, 2020
USD ($)
Disaggregation of Revenue [Line Items]  
Revenue, Remaining Performance Obligation $ 16,531
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2021-01-01  
Disaggregation of Revenue [Line Items]  
Revenue, Remaining Performance Obligation $ 14,713
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction 1 month
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2022-01-01  
Disaggregation of Revenue [Line Items]  
Revenue, Remaining Performance Obligation $ 618
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction 1 month
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2023-01-01  
Disaggregation of Revenue [Line Items]  
Revenue, Remaining Performance Obligation $ 689
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction 1 month
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2024-01-01  
Disaggregation of Revenue [Line Items]  
Revenue, Remaining Performance Obligation $ 266
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction 1 month
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2025-01-01  
Disaggregation of Revenue [Line Items]  
Revenue, Remaining Performance Obligation $ 128
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction 1 month
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2026-01-01  
Disaggregation of Revenue [Line Items]  
Revenue, Remaining Performance Obligation $ 117
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction 1 month