v3.22.2.2
Debt - Additional Information (Details) - USD ($)
$ in Thousands
 3 Months Ended 9 Months Ended 12 Months Ended
Aug. 25, 2021
Sep. 30, 2022
Sep. 30, 2021
Sep. 30, 2022
Sep. 30, 2021
Dec. 31, 2021
Aug. 24, 2021
Oct. 23, 2020
Jan. 10, 2020
Line of Credit Facility [Line Items]                  
Assumed financing lease liability   $ 36,000   $ 36,000   $ 36,500      
Sale-leaseback transactions net of transaction costs       1,100   1,100      
Payment of financing obligation   900 $ 100 1,500 $ 100        
Interest expense   400 200 1,100 200        
Debt principal amount   556,235   556,235   555,762      
Minimum lease payments   25,067   25,067          
Investment tax credit       13,200          
Implied interest on financing lease obligation   1,300   1,300          
Difference between minimum lease payments and fair value of financing lease obligations acquired   100   100          
Stellar HI Acquisition                  
Line of Credit Facility [Line Items]                  
Difference between minimum lease payments and fair value of finance lease obligations   2,600   2,600          
Fifth Third Bank                  
Line of Credit Facility [Line Items]                  
Outstanding principal balance   12,100   12,100   12,100      
Remaining borrowing capacity   0   0   0      
Deutsche Bank                  
Line of Credit Facility [Line Items]                  
Outstanding principal balance   700   700   600      
Remaining borrowing capacity   $ 11,800   $ 11,800   11,900      
Financing lease obligations                  
Line of Credit Facility [Line Items]                  
Weighted average interest rate   3.65%   3.65%          
Debt principal amount   $ 37,094   $ 37,094   37,601      
Related Term Loan | Blackstone Credit Facility                  
Line of Credit Facility [Line Items]                  
Face amount   251,000   251,000          
Amended Rated Term Loan                  
Line of Credit Facility [Line Items]                  
Outstanding principal balance   490,300   490,300   500,000      
Debt issuance costs   7,800   $ 7,800   8,400      
Amended Rated Term Loan | Blackstone Credit Facility                  
Line of Credit Facility [Line Items]                  
Increase in borrowing capacity $ 135,600                
Maximum borrowing capacity $ 503,000                
Weighted average interest rate 3.51%           3.70%    
Initial amortization rate 2.50%                
Debt instrument term 8 years                
Amortization step up rate 4.00%                
Construction Loan To Term Loan Facility                  
Line of Credit Facility [Line Items]                  
Commitment fee percentage       0.50%          
Remaining borrowing capacity   171,500   $ 171,500   169,700      
Construction Loan To Term Loan Facility | Fifth Third Bank                  
Line of Credit Facility [Line Items]                  
Additional borrowing capacity               $ 10,000  
Construction Loan To Term Loan Facility | Construction loans                  
Line of Credit Facility [Line Items]                  
Face amount                 $ 187,500
Long-term debt   0   0   5,600      
Interest costs incurred   0 $ 100 0 $ 400        
Construction Loan To Term Loan Facility | Term loans                  
Line of Credit Facility [Line Items]                  
Long-term debt   16,000   16,000   $ 12,300      
Construction Loan To Term Loan Facility | Letter of Credit                  
Line of Credit Facility [Line Items]                  
Face amount                 $ 12,500
Project Level Term Loan                  
Line of Credit Facility [Line Items]                  
Face amount   2,100   2,100          
Outstanding principal balance   12,600   12,600          
Debt issuance costs   2,200   2,200          
Interest costs incurred       200          
Project Level Term Loan | Stellar NJ 2 Acquisition                  
Line of Credit Facility [Line Items]                  
Outstanding principal balance   14,100   14,100          
Unamortized debt discount   $ 2,200   $ 2,200