Revenue (Tables)

6 Months Ended

Jun. 30, 2018

Revenue from Contract with Customer [Abstract]

Summary of Disaggregates Revenues From Contracts with Customers by Segment

Revenues by segment for the three and six months ended June 30, 2018 are summarized in the table below (in thousands):

Three and Six Months Ended June 30, 2018

	Three Months		Six Months
North America	$	204,758	$	408,908
Europe		184,186		366,484
Total	$	388,944	$	775,392

Summary of Opening and Closing Balances of Company's Receivables and Current and Long-term Contract Liabilities

The opening and closing balances of the company’s receivables and current and long-term contract liabilities are as follows (in thousands):

	June 30, 2018		January 1, 2018		Change
Trade Receivables	$	170,175	$	150,151	$	20,024
Contract liabilities—current		5,314		5,736		(422	)
Contract liabilities—noncurrent		6,540		5,222		1,318