Property, Plant, and Equipment

3 Months Ended

Jan. 31, 2021

Property, Plant and Equipment [Abstract]

At January 31, 2021 and October 31, 2020, property, plant and equipment consisted of the following:


	January 31, 2021		October 31, 2020
Land	$	8,883	$	8,816
Land improvements	4,631		4,611
Buildings	256,886		253,621
Machinery and equipment	476,264		464,171
Enterprise management system	51,697		56,103
Construction-in-progress	32,391		29,897
Leased property under capitalized leases	34,283		32,590
	865,035		849,809
Accumulated depreciation and amortization	(506,365)		(491,191)
	$	358,670	$	358,618

Property, plant and equipment are carried at cost. Additions and improvements that extend the lives of assets are capitalized, while expenditures for repairs and maintenance are expensed as incurred. Plant and equipment are depreciated for financial reporting purposes using the straight-line method over the estimated useful lives of the assets or, in the case of property under finance leases, over the terms of the leases. Leasehold improvements are depreciated over the shorter of the lease term or their useful lives. Internal use software costs are expensed or capitalized depending on whether they are incurred in the preliminary project stage, application development or the post implementation stage. Amounts capitalized are amortized over the estimated useful lives of the software beginning with the project's completion or the non-cancelable term of the arrangement with consideration for renewal options. Depreciation expense was $12,940 and $12,445 for the three months ended January 31, 2021 and January 31, 2020, respectively.