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Revenue from Contracts with Customers - Performance Obligations, Expected Timing of Recognition, Narrative (Details)
Dec. 31, 2020
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2021-01-01  
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]  
Performance obligation, percentage of revenue 32.00%
Performance obligation, period for recognition 1 year
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2022-01-01  
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]  
Performance obligation, percentage of revenue 68.00%
Performance obligation, period for recognition 12 years 1 month 6 days