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Real Estate (Tables)
3 Months Ended
Dec. 31, 2021
Real Estate [Abstract]  
Schedule of Real Estate Properties Real estate consists of:
December 31,
2021
September 30,
2021
 (In millions)
Developed and under development projects$1,854.6 $1,824.7 
Undeveloped land105.5 80.5 
$1,960.1 $1,905.2