Quarterly report pursuant to Section 13 or 15(d)

Long-Term Debt - Additional Information (Details)

v3.22.1
Long-Term Debt - Additional Information (Details) - USD ($)
May 04, 2023
May 04, 2020
Nov. 21, 2019
Mar. 31, 2022
Dec. 31, 2021
Debt Instrument [Line Items]          
Line of Credit Facility, Unused Capacity, Commitment Fee Percentage     0.10%    
Letter of Credit Fee in Percentage     1.00%    
Letters of Credit Outstanding, Amount       $ 40,800,000 $ 39,200,000
2019 Credit Agreement [Member]          
Debt Instrument [Line Items]          
Original borrowing capacity     $ 250,000,000.0    
Line of Credit Facility Accordion     150,000,000.0    
Line of Credit Facility, Maximum Borrowing Capacity     400,000,000.0    
Letter of Credit [Member]          
Debt Instrument [Line Items]          
Line of Credit Facility, Capacity Available for Specific Purpose Other than for Trade Purchases     $ 100,000,000.0    
Series B [Member] | Forecast [Member]          
Debt Instrument [Line Items]          
Maturity Date Description The Series B Notes bear interest at 3.10% per annum and mature on May 4, 2027, unless prepaid.        
Notes interest 3.10%        
Scheduled principal payment $ 20,000,000.0        
Maturity date May 04, 2027        
Maximum [Member]          
Debt Instrument [Line Items]          
Interest Rate Spread added to Rate     0.375%    
Line of Credit Facility, Unused Capacity, Commitment Fee Percentage     0.175%    
Maximum [Member] | London Interbank Offered Rate (LIBOR) [Member]          
Debt Instrument [Line Items]          
Interest Rate Spread added to Rate     1.375%    
Minimum [Member]          
Debt Instrument [Line Items]          
Interest Rate Spread added to Rate     0.00%    
Line of Credit Facility, Unused Capacity, Commitment Fee Percentage     0.10%    
Minimum [Member] | London Interbank Offered Rate (LIBOR) [Member]          
Debt Instrument [Line Items]          
Interest Rate Spread added to Rate     1.00%    
P G I M I N C [Member] | Series B Notes [Member]          
Debt Instrument [Line Items]          
Proceeds from issuance of senior promissory notes   $ 100,000,000.0      
Note Agreement [Member] | P G I M I N C [Member] | Maximum [Member]          
Debt Instrument [Line Items]          
Aggregate amount on promissory notes issued   $ 350,000,000.0