v3.26.3
Equity Incentive Plans (Summary Of Restricted Share Unit Activity) (Details) - USD ($)
$ / shares in Units, $ in Thousands
3 Months Ended 9 Months Ended
Sep. 30, 2026
Sep. 30, 2025
Sep. 30, 2026
Sep. 30, 2025
Dec. 31, 2024
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested [Roll Forward]          
Number of Shares, Outstanding at December 31, 2025     648,878    
Number of Shares, Granted     336,422    
Number of Shares, Vested     (331,954)    
Number of Shares, Outstanding at March 31, 2026 650,338   650,338    
Weighted Average Grant Date Fair Value, Outstanding at December 31, 2025     $ 46.05    
Weighted Average Grant Date Fair Value, Granted     54.68    
Weighted Average Grant Date Fair Value, Vested     $ 45.24    
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Forfeited in Period     (3,008)    
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Forfeitures, Weighted Average Grant Date Fair Value     $ 42.52    
Weighted Average Life Remaining, Outstanding at March 31, 2026 (in years)     1 year 1 month 9 days    
Weighted Average Grant Date Fair Value, Outstanding at March 31, 2026 $ 50.95   $ 50.95    
Unamortized share-based compensation expense $ 15,200   $ 15,200    
Severance Costs $ 0 $ 1,094 $ 1,423 $ 1,094  
Restricted Share Units [Member]          
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested [Roll Forward]          
Number of Shares, Outstanding at December 31, 2025     42,071    
Number of Shares, Granted     40,741    
Number of Shares, Vested     (42,071)    
Number of Shares, Outstanding at March 31, 2026 40,741   40,741    
Weighted Average Grant Date Fair Value, Outstanding at December 31, 2025     $ 56.01    
Weighted Average Grant Date Fair Value, Granted     56.20    
Weighted Average Grant Date Fair Value, Vested     $ 56.01    
Weighted Average Life Remaining, Outstanding at March 31, 2026 (in years)     8 months 1 day    
Weighted Average Grant Date Fair Value, Outstanding at March 31, 2026 $ 56.20   $ 56.20    
Unamortized share-based compensation expense $ 1,500   $ 1,500    
Restricted Share Units [Member] | Non-Employee Trustees [Member]          
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested [Roll Forward]          
Share-based Payment Arrangement, Expense     $ 1,700 1,700  
Performance Shares [Member]          
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested [Roll Forward]          
Number of Shares, Outstanding at December 31, 2025     341,692    
Number of Shares, Granted     119,459    
Number of Shares, Vested     (111,593)    
Number of Shares, Outstanding at March 31, 2026 349,558   349,558    
Weighted Average Grant Date Fair Value, Outstanding at December 31, 2025     $ 57.97    
Weighted Average Grant Date Fair Value, Granted     56.19    
Weighted Average Grant Date Fair Value, Vested     $ 63.08    
Weighted Average Life Remaining, Outstanding at March 31, 2026 (in years)     1 year 3 months    
Weighted Average Grant Date Fair Value, Outstanding at March 31, 2026 $ 55.73   $ 55.73    
Unamortized share-based compensation expense $ 8,900   $ 8,900    
Share-based Payment Arrangement, Expense     5,300 4,200  
Severance Costs     $ 600 $ 400  
Performance Shares [Member] | Performance Condition | Granted in 2026          
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested [Roll Forward]          
Share-based Compensation Arrangement, Equity Instruments Other Than Options, Performance Condition, Nonvested, Grant Date Fair Value         $ 2,200
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Rights, Percentage     165.00%    
Performance Shares [Member] | Performance Condition | Granted in 2025          
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested [Roll Forward]          
Share-based Compensation Arrangement, Equity Instruments Other Than Options, Performance Condition, Nonvested, Grant Date Fair Value         2,500
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Rights, Percentage     200.00%    
Performance Shares [Member] | Performance Condition | Granted in 2024          
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested [Roll Forward]          
Share-based Compensation Arrangement, Equity Instruments Other Than Options, Performance Condition, Nonvested, Grant Date Fair Value         $ 500
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Rights, Percentage     51.40%