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Interest
12 Months Ended
Sep. 30, 2021
Real Estate Inventory Capitalized Interest Costs [Abstract]  
Interest Interest
Interest capitalized during the fiscal years ended September 30, 2021, 2020 and 2019 was limited by the balance of inventory eligible for capitalization. The following table presents certain information regarding interest for the periods presented:
Fiscal Year Ended September 30,
in thousands202120202019
Capitalized interest in inventory, beginning of period$119,659 $136,565 $144,645 
Interest incurred77,397 87,224 103,970 
Capitalized interest impaired (792)(13,907)
Interest expense not qualified for capitalization and included as other expense (a)
(2,781)(8,468)(3,109)
Capitalized interest amortized to home construction and land sales expenses (b)
(87,290)(94,870)(95,034)
Capitalized interest in inventory, end of period$106,985 $119,659 $136,565 
(a) The amount of interest capitalized depends on the qualified inventory balance, which considers the status of the Company's inventory holdings. Qualified inventory balance includes the majority of homes under construction and land under development but excludes land held for future development and land held for sale.
(b) Capitalized interest amortized to home construction and land sales expenses varies based on the number of homes closed during the period and land sales, if any, as well as other factors.