v3.26.1
Debt (Tables)
9 Months Ended
Jun. 30, 2026
Debt Disclosure [Abstract]  
Schedule of Debt
The following table represents our debt at carrying value at June 30, 2026 and September 30, 2025:
June 30,
2026
September 30,
2025
(In thousands)
Current maturities on debt:
     Term loan$300,000 $— 
     The 2018 Senior Notes— 400,000 
     Less: debt issuance costs— (459)
           Current maturities on debt300,000 399,541 
Long-term debt:
     Revolving line of credit710,000 275,000 
     Term loan1,200,000 — 
     The 2019 Senior Notes and the 2021 Senior Notes900,000 900,000 
     The 2025 Senior Notes1,500,000 1,500,000 
     The 2026 Senior Notes1,000,000 — 
      Less: debt issuance costs(27,611)(18,850)
           Long-term debt5,282,389 2,656,150 
           Total debt$5,582,389 $3,055,691 
Schedule of Carrying Values and Estimated Fair Values of Debt Instruments
The following table presents the face values and fair values for the Senior Notes at June 30, 2026 and September 30, 2025:
 June 30, 2026September 30, 2025
 Face ValueFair ValueFace ValueFair Value
 (In thousands)
The 2018 Senior Notes$— $— $400,000 $399,500 
The 2019 Senior Notes and the 2021 Senior Notes900,000 874,125 900,000 875,250 
The 2025 Senior Notes1,500,000 1,475,625 1,500,000 1,518,750 
The 2026 Senior Notes1,000,000 983,750 — — 
       Total $3,400,000 $3,333,500 $2,800,000 $2,793,500