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Corporate Borrowings - Narrative (Details) - USD ($)
$ in Thousands
12 Months Ended
Nov. 16, 2021
Dec. 31, 2019
Dec. 31, 2017
Mar. 31, 2023
Dec. 31, 2022
Jul. 29, 2021
May 14, 2021
Feb. 14, 2020
Debt Instrument [Line Items]                
Total indebtedness outstanding       $ 235,650 $ 236,450      
Line of Credit | Revolving Credit Facility                
Debt Instrument [Line Items]                
Contingent increase in borrowing capacity             $ 100,000  
Credit Agreement - Revolver, 5.90% (variable rate) due 2026                
Debt Instrument [Line Items]                
Outstanding borrowings under credit facility             400,000 $ 300,000
Credit Agreement - Revolver, 5.90% (variable rate) due 2026 | Line of Credit | Revolving Credit Facility                
Debt Instrument [Line Items]                
Total indebtedness outstanding       0 0      
Remaining borrowing capacity       400,000        
Convertible Senior Notes, 1.88% (fixed rate) due 2041 | Convertible Debt                
Debt Instrument [Line Items]                
Total indebtedness outstanding       $ 201,250 201,250      
Proceeds from issuance of debt $ 201,250              
Stated interest rate 1.88%     1.88%        
Note Purchase Agreement | Secured Debt                
Debt Instrument [Line Items]                
Term loan face value             20,000  
Note Purchase Agreement | Secured Debt | Revolving Credit Facility                
Debt Instrument [Line Items]                
Total indebtedness outstanding       $ 20,000        
Remaining borrowing capacity       120,000        
Term loan face value           $ 140,000 $ 105,000  
Series A Senior Secured Notes, 3.53% (fixed rate) due 2027 | Secured Debt                
Debt Instrument [Line Items]                
Total indebtedness outstanding       $ 14,400 15,200      
Proceeds from issuance of debt     $ 20,000          
Stated interest rate       3.53%        
Senior Secured Notes, 3.80% (fixed rate) due 2029 | Secured Debt                
Debt Instrument [Line Items]                
Total indebtedness outstanding       $ 20,000 $ 20,000      
Proceeds from issuance of debt   $ 20,000            
Stated interest rate       3.80%