Revenue Recognition (Tables)

9 Months Ended

Sep. 30, 2019

Revenue From Contract With Customer [Abstract]

Disaggregation of Revenue

Information regarding revenues disaggregated by geographic area is as follows:

	Three months ended September 30,				Nine months ended September 30,
(In thousands)	2019		2018		2019		2018
Revenues:
United States	$	93,395	$	95,288	$	275,152	$	284,351
Foreign:
Asia		2,816		1,928		6,555		6,789
Canada		3,437		2,564		10,755		9,353
Europe		4,327		4,457		14,128		14,605
Mexico		1,682		1,031		3,519		2,137
Middle East		1,317		4,602		4,382		9,958
Other		1,672		760		2,578		2,126
Total	$	108,646	$	110,630	$	317,069	$	329,319

Information regarding revenues disaggregated by the timing of when goods and services are transferred is as follows:

	Three months ended September 30,				Nine months ended September 30,
(In thousands)	2019		2018		2019		2018
Revenue recognized over time	$	3,857	$	3,455	$	11,341	$	9,203
Revenue recognized at a point in time		104,789		107,175		305,728		320,116
Total	$	108,646	$	110,630	$	317,069	$	329,319

Contract with Customer, Liability and Receivables

The opening and closing balances of the Company's receivables and contract liabilities are as follows:

	September 30, 2019		December 31, 2018
(In thousands)
Receivables	$	61,406	$	66,300
Contract liabilities		19,042		15,793