Segment Reporting and Business Concentrations (Tables)

6 Months Ended

Jun. 30, 2019

Segment Reporting [Abstract]

Schedule of Revenue from External Customers and Long-Lived Assets, by Geographical Areas

Revenues disaggregated by geographic region were as follows (in thousands):

	United States		Canada		Total
Revenue from external customers
Three months ended June 30, 2019	$	263,007	$	18,046	$	281,053
Three months ended June 30, 2018	237,513		17,454		254,967
Six months ended June 30, 2019	521,443		35,859		557,302
Six months ended June 30, 2018	466,055		35,509		501,564