XML 66 R53.htm IDEA: XBRL DOCUMENT v3.21.1
Revenue Recognition (Details) - Remaining Performance Obligations, Expected Timing of recognition
Dec. 31, 2020
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2021-01-01  
Revenue Recognition (Details) - Remaining Performance Obligations, Expected Timing of recognition [Line Items]  
Revenue, Remaining Performance Obligation, Percentage 67.00%
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Period 12 months
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2022-01-01  
Revenue Recognition (Details) - Remaining Performance Obligations, Expected Timing of recognition [Line Items]  
Revenue, Remaining Performance Obligation, Percentage 18.00%
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2022-01-01 | Minimum [Member]  
Revenue Recognition (Details) - Remaining Performance Obligations, Expected Timing of recognition [Line Items]  
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Period 13 months
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2022-01-01 | Maximum [Member]  
Revenue Recognition (Details) - Remaining Performance Obligations, Expected Timing of recognition [Line Items]  
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Period 36 months
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2024-01-01  
Revenue Recognition (Details) - Remaining Performance Obligations, Expected Timing of recognition [Line Items]  
Revenue, Remaining Performance Obligation, Percentage 15.00%
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Period 37 months