Note 10. Property, plant, and equipment



	September 30,		September 30,
	2018		2017
Land and land improvements	$	94,146	$	88,326
Buildings and building improvements		565,065		514,453
Leasehold improvements		17,954		16,142
Machinery and production equipment		668,986		543,641
Computer equipment and software		124,788		124,723
Office furniture and equipment		31,533		24,308
Other		19,366		19,393
Construction in progress		103,036		111,910
		1,624,874		1,442,896
Less accumulated depreciation		(564,869)		(520,853)
Property, plant, and equipment, net	$	1,060,005	$	922,043

In the second quarter of fiscal year 2018, the Company announced its decision to relocate its Duarte, California operations to the Company’s newly renovated Drake Campus in Fort Collins, Colorado. The Company has identified assets held for sale with a carrying value of $8,306 at September 30, 2018, the majority of which are included in “Land and land improvements” and “Buildings and buildings improvements” which relate to the land, building and building improvements, and other assets at the Duarte facility. The assets held for sale are included in the Company’s Aerospace segment. The Company had no assets held for sale recorded as of September 30, 2017. The carrying value of the remaining assets at the Duarte facility was approximately $2,600 as of September 30, 2018, of which the Company has identified approximately $650 that is planned to be disposed of as a result of the relocation.

The Company assessed whether the decision to relocate from its Duarte facility could indicate a potential impairment of the assets at the Duarte facility and concluded that the assets were not impaired as of September 30, 2018.

Included in “Office furniture and equipment” and “Other” is $1,650 at September 30, 2018 and $1,653 at September 30, 2017, of gross assets acquired on capital leases, and accumulated depreciation included $1,158 at September 30, 2018 and $739 at September 30, 2017 of amortization associated with the capital lease assets.

In fiscal year 2015, Woodward completed and placed into service a manufacturing and office building on a second campus in the greater-Rockford, Illinois area and has occupied the new facility for its Aerospace segment. This campus is intended to support Woodward’s expected growth in its Aerospace segment as a result of Woodward being awarded a substantial number of new system platforms, particularly on narrow-body aircraft.

Included in “Construction in progress” are costs of $32,248 at September 30, 2018 and $49,347 at September 30, 2017 associated with new equipment purchases for the greater-Rockford, Illinois campus and costs of $3,967 at September 30, 2018 and $15,584 at September 30, 2017 associated with the renovation of the Drake Campus.

For the fiscal years ended September 30, 2018, 2017, and 2016, Woodward had depreciation expense as follows:



	Year Ended September 30,
	2018		2017		2016
Depreciation expense	$	71,389	$	55,140	$	41,550

For the fiscal years ended September 30, 2018, 2017, and 2016, Woodward capitalized interest that would have otherwise been included in interest expense of the following:



	Year Ended September 30,
	2018		2017		2016
Capitalized interest	$	2,187	$	2,008	$	5,455