v3.26.1
Capitalization (Tables)
 6 Months Ended
Mar. 31, 2026
Capitalization, Long-Term Debt and Equity [Abstract]  
Schedule of Changes in Common Stock Equity
Summary of Changes in Common Stock Equity
 Common StockPaid In
Capital		Earnings
Reinvested
in the
Business		Accumulated
Other
Comprehensive
Income (Loss)
SharesAmount
 (Thousands)
Balance at January 1, 202695,017 $95,017 $1,382,593 $2,143,340 $(32,990)
Net Income Available for Common Stock247,668 
Dividends Declared on Common Stock ($0.535 Per Share)
(50,840)
Other Comprehensive Income, Net of Tax34,101 
Share-Based Payment Expense (1)
5,118 
Common Stock Issued from Sale of Common Stock— — (172)
Common Stock Issued Under Stock and Benefit Plans10 10 654 
Balance at March 31, 202695,027 $95,027 $1,388,193 $2,340,168 $1,111 
Balance at October 1, 202590,379 $90,379 $1,050,918 $2,012,529 $(59,222)
Net Income Available for Common Stock429,313 
Dividends Declared on Common Stock ($1.07 Per Share)
(101,674)
Other Comprehensive Income, Net of Tax60,333 
Share-Based Payment Expense (1)
8,545 
Common Stock Issued from Sale of Common Stock4,403 4,403 334,000 
Common Stock Issued (Repurchased) Under Stock and Benefit Plans245 245 (5,270)
Balance at March 31, 202695,027 $95,027 $1,388,193 $2,340,168 $1,111 
Balance at January 1, 202590,613 $90,613 $1,039,705 $1,698,648 $(76,153)
Net Income Available for Common Stock216,358 
Dividends Declared on Common Stock ($0.515 Per Share)
(46,555)
Other Comprehensive Loss, Net of Tax(146,822)
Share-Based Payment Expense (1)
5,135 
Common Stock Issued Under Stock and Benefit Plans11 11 604 
Share Repurchases Under Repurchase Plan(226)(226)(2,622)(13,085)
Balance at March 31, 202590,398 $90,398 $1,042,822 $1,855,366 $(222,975)
Balance at October 1, 202491,006 $91,006 $1,045,487 $1,727,326 $(15,476)
Net Income Available for Common Stock261,344 
Dividends Declared on Common Stock ($1.03 Per Share)
(93,226)
Other Comprehensive Loss, Net of Tax(207,499)
Share-Based Payment Expense (1)
9,225 
Common Stock Issued (Repurchased) Under Stock and Benefit Plans
167 167 (2,906)
Share Repurchases Under Repurchase Plan(775)(775)(8,984)(40,078)
Balance at March 31, 202590,398 $90,398 $1,042,822 $1,855,366 $(222,975)

(1)Paid in Capital includes compensation costs associated with performance shares and/or restricted stock awards. The expense is included within Net Income Available For Common Stock, net of tax benefits.
Schedule of Common Stock Share Activity Common stock share activity during the six months ended March 31, 2026 consisted of the following items:
Six Months Ended March 31, 2026
Vesting of Restricted Stock Units140,395 
Vesting of Performance Shares167,241 
Issuance of Common Stock Pursuant to the Company's Non-Employee Director Equity
Compensation Plan and Deferred Compensation Plan for Directors and Officers
16,353 
Shares Tendered to Pay Withholding Taxes on Stock-Based Compensation Awards (1)
(78,150)
Common Stock Issued Under Stock and Benefit Plans245,839 
Common Stock Issued from Sale of Common Stock4,402,513 
Total Common Stock Issued During the Six Months Ended March 31, 20264,648,352 
(1)    The Company considers all shares tendered as cancelled shares restored to the status of authorized but unissued shares, in accordance with New Jersey law.