Revenue (Disaggregation of Revenue by Geographical Areas) (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Disaggregation of revenue
Revenues	$ 649,814	$ 568,959	$ 1,266,260	$ 1,161,662
United States
Disaggregation of revenue
Revenues	602,146	516,425	1,157,385	1,046,496
Mexico
Disaggregation of revenue
Revenues	39,325	31,045	78,081	74,466
Others
Disaggregation of revenue
Revenues	$ 8,343	$ 21,489	$ 30,794	$ 40,700