XML 53 R42.htm IDEA: XBRL DOCUMENT v3.21.2
Revenue Recognition - Additional Information (Details) - USD ($)
3 Months Ended 9 Months Ended
Sep. 30, 2021
Sep. 30, 2020
Sep. 30, 2021
Sep. 30, 2020
Revenue from Contract with Customer [Abstract]        
Contract liability revenue recognized $ 100,000   $ 8,600,000  
Impairment losses on contract assets 0 $ 0 0 $ 0
Transaction price allocated to uncompleted contracts $ 94,900,000   $ 94,900,000  
Minimum        
New Accounting Pronouncements or Change in Accounting Principle [Line Items]        
Payment terms (in days)     30 days  
Maximum        
New Accounting Pronouncements or Change in Accounting Principle [Line Items]        
Payment terms (in days)     60 days  
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2021-10-01        
New Accounting Pronouncements or Change in Accounting Principle [Line Items]        
Expected time of revenue recognition (in months)     18 months