XML 112 R97.htm IDEA: XBRL DOCUMENT v3.22.1
The Company - U.S. Department of Energy NuScale SMR FOAK Nuclear Demonstration Readiness Project Completion (Details) - USD ($)
$ in Thousands
 1 Months Ended 12 Months Ended
Feb. 29, 2020
Dec. 31, 2021
Dec. 31, 2020
Mar. 31, 2022
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items]        
Deferred DOE cost share liabilities   $ 10,237 $ 0 $ 10,237
NuScale SMR FOAK Nuclear Demonstration Readiness Project Completion        
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items]        
Maximum amount awarded $ 350,000      
Cost share $ 350,000      
Cost share (as a percent) 50.00%      
Reimbursement of program costs (as a percent) 73.00%      
Deferred DOE cost share liabilities   $ 10,237 0  
Percentage of Maximum future reimbursement requests to recognize deferred reimbursement costs   50.00%    
Cumulative cash received   $ 57,817 $ 100,500  
NuScale SMR FOAK Nuclear Demonstration Readiness Project Completion | Accounts Receivable [Member]        
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items]        
Cumulative cash received   158,317    
Amount obligated under current budget period   12,183    
NuScale SMR FOAK Nuclear Demonstration Readiness Project Completion | Government [Member]        
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items]        
Cost share $ 350,000      
Cost share (as a percent) 50.00%      
Term of award 5 years      
Percentage of reimbursement requests deferred 23.00%      
Amount obligated under current budget period   $ 1,972