Revenue Recognition (Tables)

3 Months Ended

Mar. 31, 2019

Revenue from Contract with Customer [Abstract]

Summary of revenues by primary geographical markets

A summary of the Company's revenues by primary geographical markets as well as by key product and service groups is as follows:

	Three Months Ended
	March 31, 2019
(In thousands)	Harsco Metals & Minerals Segment		Harsco Industrial Segment		Harsco Rail Segment		Corporate		Consolidated Totals
Primary Geographical Markets (a):
North America	$	73,349	$	112,099	$	50,366	$	—	$	235,814
Western Europe	98,221		—		10,013		—		108,234
Latin America (b)	36,991		5,286		591		—		42,868
Asia-Pacific	34,138		—		7,621		—		41,759
Middle East and Africa	13,915		—		—		—		13,915
Eastern Europe	4,698		—		—		—		4,698
Total Revenues	$	261,312	$	117,385	$	68,591	$	—	$	447,288
Key Product and Service Groups:
On-site services and material logistics, product quality improvement and resource recovery for iron, steel and metals manufacturing; value- added environmental solutions for industrial co-products; as well as aluminum dross and scrap processing systems	$	261,312	$	—	$	—	$	—	$	261,312
Railway track maintenance services and equipment	—		—		68,591		—		68,591
Air-cooled heat exchangers	—		76,203		—		—		76,203
Industrial grating and fencing products	—		33,376		—		—		33,376
Heat transfer products	—		7,806		—		—		7,806
Total Revenues	$	261,312	$	117,385	$	68,591	$	—	$	447,288

	Three Months Ended
	March 31, 2018
(In thousands)	Harsco Metals & Minerals Segment		Harsco Industrial Segment		Harsco Rail Segment		Corporate		Consolidated Totals
Primary Geographical Markets (a):
North America	$	71,065	$	78,858	$	40,405	$	39	$	190,367
Western Europe	96,921		—		14,720		—		111,641
Latin America (b)	41,458		4,740		833		—		47,031
Asia-Pacific	36,221		—		3,720		—		39,941
Middle East and Africa	11,553		—		—		—		11,553
Eastern Europe	7,505		—		—		—		7,505
Total Revenues	$	264,723	$	83,598	$	59,678	$	39	$	408,038
Key Product and Service Groups:
On-site services and material logistics, product quality improvement and resource recovery for iron, steel and metals manufacturing; value- added environmental solutions for industrial co-products; as well as aluminum dross and scrap processing systems	$	264,723	$	—	$	—	$	—	$	264,723
Railway track maintenance services and equipment	—		—		59,678		—		59,678
Air-cooled heat exchangers	—		44,267		—		—		44,267
Industrial grating and fencing products	—		30,097		—		—		30,097
Heat transfer products	—		9,234		—		—		9,234
General Corporate	—		—		—		39		39
Total Revenues	$	264,723	$	83,598	$	59,678	$	39	$	408,038

(a) Revenues are attributed to individual countries based on the location of the facility generating the revenue.

(b) Includes Mexico.