XML 114 R94.htm IDEA: XBRL DOCUMENT v3.25.3
FAIR VALUE MEASUREMENT OF FINANCIAL INSTRUMENTS - Supplemental Fair Value Information about Long-Term Fixed-Rate Debt (Details) - USD ($)
Sep. 30, 2025
Sep. 30, 2024
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Long-term debt, net, carrying value $ 2,057,084,000 $ 1,782,182,000
Due December 1, 2027    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Long-term debt, net, carrying value 347,675,000 347,093,000
Due December 1, 2029    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Long-term debt, net, carrying value 346,602,000 346,297,000
Due September 29, 2031    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Long-term debt, net, carrying value 546,336,000 545,738,000
Due December 1, 2034    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Long-term debt, net, carrying value 543,197,000 543,054,000
Due January 15, 2027    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Long-term debt, net, carrying value 199,020,000  
2023 Oman Facility    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Long-term debt, net, carrying value 35,465,000  
2024 Oman Facility    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Long-term debt, net, carrying value 38,789,000  
Level 1    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Long-term debt, net, fair value 0 0
Level 1 | Due December 1, 2027    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Long-term debt, net, fair value 0 0
Level 1 | Due December 1, 2029    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Long-term debt, net, fair value 0 0
Level 1 | Due September 29, 2031    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Long-term debt, net, fair value 0 0
Level 1 | Due December 1, 2034    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Long-term debt, net, fair value 0 0
Level 1 | Due January 15, 2027    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Long-term debt, net, fair value 0  
Level 1 | 2023 Oman Facility    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Long-term debt, net, fair value 0  
Level 1 | 2024 Oman Facility    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Long-term debt, net, fair value 0  
Level 2    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Long-term debt, net, fair value 1,927,001,000 1,702,850,000
Level 2 | Due December 1, 2027    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Long-term debt, net, fair value 352,261,000 350,700,000
Level 2 | Due December 1, 2029    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Long-term debt, net, fair value 348,688,000 345,100,000
Level 2 | Due September 29, 2031    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Long-term debt, net, fair value 486,343,000 471,350,000
Level 2 | Due December 1, 2034    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Long-term debt, net, fair value 538,417,000 535,700,000
Level 2 | Due January 15, 2027    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Long-term debt, net, fair value 201,292,000  
Level 2 | 2023 Oman Facility    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Long-term debt, net, fair value 0  
Level 2 | 2024 Oman Facility    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Long-term debt, net, fair value 0  
Level 3    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Long-term debt, net, fair value 74,254,000 0
Level 3 | Due December 1, 2027    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Long-term debt, net, fair value 0 0
Level 3 | Due December 1, 2029    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Long-term debt, net, fair value 0 0
Level 3 | Due September 29, 2031    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Long-term debt, net, fair value 0 0
Level 3 | Due December 1, 2034    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Long-term debt, net, fair value 0 $ 0
Level 3 | Due January 15, 2027    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Long-term debt, net, fair value 0  
Level 3 | 2023 Oman Facility    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Long-term debt, net, fair value 35,465,000  
Level 3 | 2024 Oman Facility    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Long-term debt, net, fair value $ 38,789,000