Annual report [Section 13 and 15(d), not S-K Item 405]

Fair Value Measurements - Assets and Liabilities (Details)

v3.25.3
Fair Value Measurements - Assets and Liabilities (Details)
$ in Thousands
Sep. 30, 2025
USD ($)
Interest Rate Swaps  
Financial information for each of the Company's business segments  
Notional value, asset $ 450,000
Notional value, liability 500,000
Fair Value, Recurring  
Financial information for each of the Company's business segments  
Total assets 46,140
Total liabilities 13,035
Guaranty liabilities 11,342
Fair Value, Recurring | Interest Rate Swaps  
Financial information for each of the Company's business segments  
Total assets 5,545
Total liabilities 1,693
Fair Value, Recurring | Deferred compensation assets - Rabbi Trust  
Financial information for each of the Company's business segments  
Total assets 40,595
Level 1 | Fair Value, Recurring  
Financial information for each of the Company's business segments  
Total assets 40,595
Total liabilities 0
Guaranty liabilities 0
Level 1 | Fair Value, Recurring | Interest Rate Swaps  
Financial information for each of the Company's business segments  
Total assets 0
Total liabilities 0
Level 1 | Fair Value, Recurring | Deferred compensation assets - Rabbi Trust  
Financial information for each of the Company's business segments  
Total assets 40,595
Level 2 | Fair Value, Recurring  
Financial information for each of the Company's business segments  
Total assets 5,545
Total liabilities 1,693
Guaranty liabilities 0
Level 2 | Fair Value, Recurring | Interest Rate Swaps  
Financial information for each of the Company's business segments  
Total assets 5,545
Total liabilities 1,693
Level 2 | Fair Value, Recurring | Deferred compensation assets - Rabbi Trust  
Financial information for each of the Company's business segments  
Total assets 0
Level 3 | Fair Value, Recurring  
Financial information for each of the Company's business segments  
Total assets 0
Total liabilities 11,342
Guaranty liabilities 11,342
Level 3 | Fair Value, Recurring | Interest Rate Swaps  
Financial information for each of the Company's business segments  
Total assets 0
Total liabilities 0
Level 3 | Fair Value, Recurring | Deferred compensation assets - Rabbi Trust  
Financial information for each of the Company's business segments  
Total assets $ 0