Property, Plant and Equipment

6 Months Ended

Jun. 30, 2018

Property Plant And Equipment [Abstract]

Property, Plant and Equipment

3. Property, Plant and Equipment

Property, plant and equipment were comprised of the following:

	June 30, 2018			December 31, 2017
Land and land improvements	$	11,887		$	12,172
Buildings		67,783			68,572
Machinery and equipment		340,650			340,396
Construction-in-process		7,456			5,019
Other		7,379			7,193
		435,155			433,352
Accumulated depreciation and amortization		(228,165	)		(218,372	)
Property, plant and equipment, net	$	206,990		$	214,980

The majority of the assets of the Corporation, except real property including the land and building of Union Electric Steel UK Limited (“UES-UK”), is pledged as collateral for the Corporation’s Revolving Credit and Security Agreement (Note 7). Land and buildings of UES-UK, equal to approximately $2,770 (£2,098) at June 30, 2018, are held as collateral by the trustees of the UES-UK defined benefit pension plan (see Note 6). The gross value of assets under capital lease and the related accumulated amortization as of June 30, 2018, approximated $3,695 and $964, respectively, and at December 31, 2017, approximated $4,082 and $1,101, respectively.