v3.26.1
Debt - Narrative (Details)
12 Months Ended
Nov. 20, 2025
USD ($)
Jun. 30, 2026
USD ($)
Jun. 30, 2025
USD ($)
Jun. 30, 2024
USD ($)
Apr. 14, 2023
USD ($)
Long-term debt outstanding          
Aggregate maturities of long-term debt, 2027   $ 0      
Aggregate maturities of long-term debt, 2028   0      
Aggregate maturities of long-term debt, 2029   0      
Aggregate maturities of long-term debt, 2030   0      
Aggregate maturities of long-term debt, 2031   0      
Interest costs   45,700,000 $ 51,000,000.0 $ 52,600,000  
Interest costs, capitalized   7,900,000 2,600,000 1,600,000  
Debt extinguishment losses   15,600,000 0 $ 0  
Debt prepayment costs   11,400,000      
Accelerated issue costs   4,200,000      
Line of Credit          
Long-term debt outstanding          
Credit Agreement available for future borrowings   499,100,000      
Short-term credit agreement borrowings   $ 0      
Borrowing rate   5.38%      
Line of Credit | Revolving Credit Facility          
Long-term debt outstanding          
Current borrowing capacity         $ 500,000,000.0
Required interest coverage ratio one         3.00
Required consolidated net leverage ratio         3.50
Line of Credit | Revolving Credit Facility | Maximum          
Long-term debt outstanding          
Credit Agreement available for future borrowings         $ 650,000,000.0
Line of Credit | Revolving Credit Facility | Minimum          
Long-term debt outstanding          
Credit Agreement available for future borrowings         $ 40,000,000.0
Line of Credit | Letter of Credit          
Long-term debt outstanding          
Letters of credit issued   $ 900,000      
Senior unsecured notes, 5.625% due March 2034 (face value of $700.0 million at June 30, 2026) | Senior Notes          
Long-term debt outstanding          
Face amount $ 700,000,000.0 $ 700,000,000.0      
Interest rate 5.625% 5.625%      
Senior unsecured notes, 6.375% due July 2028 (face value of $400.0 million at June 30, 2025) | Senior Notes          
Long-term debt outstanding          
Face amount     $ 400,000,000.0    
Interest rate     6.375%    
Aggregate principal amount $ 400,000,000.0        
Senior unsecured notes, 7.625% due March 2030 (face value of $300.0 million at June 30, 2025) | Senior Notes          
Long-term debt outstanding          
Face amount     $ 300,000,000.0    
Interest rate     7.625%    
Aggregate principal amount $ 300,000,000.0        
Letter of Credit          
Long-term debt outstanding          
Commitment fee rate   0.225%      
Letter of credit fees   1.625%      
Letter of Credit | Secured Overnight Financing Rate (SOFR)          
Long-term debt outstanding          
Interest rate margin   1.625%      
Letter of Credit | Base Rate          
Long-term debt outstanding          
Interest rate margin   0.75%      
Letter of Credit | Maximum          
Long-term debt outstanding          
Commitment fee rate   0.30%      
Letter of credit fees   2.15%      
Letter of Credit | Maximum | Secured Overnight Financing Rate (SOFR)          
Long-term debt outstanding          
Interest rate margin   2.15%      
Letter of Credit | Maximum | Base Rate          
Long-term debt outstanding          
Interest rate margin   1.25%      
Letter of Credit | Minimum          
Long-term debt outstanding          
Commitment fee rate   0.20%      
Letter of credit fees   1.375%      
Letter of Credit | Minimum | Secured Overnight Financing Rate (SOFR)          
Long-term debt outstanding          
Interest rate margin   1.375%      
Letter of Credit | Minimum | Base Rate          
Long-term debt outstanding          
Interest rate margin   0.50%