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Segment and Geographic Information Segment and Geographic Information 2 (Details) - USD ($)
$ in Thousands
3 Months Ended 12 Months Ended
Dec. 31, 2016
Sep. 30, 2016
Jun. 30, 2016
Mar. 31, 2016
Dec. 31, 2015
Sep. 30, 2015
Jun. 30, 2015
Mar. 31, 2015
Dec. 31, 2016
Dec. 31, 2015
Dec. 31, 2014
Revenues from External Customers and Long-Lived Assets [Line Items]                      
Revenues $ 462,042 $ 261,153 $ 181,979 $ 183,203 $ 191,424 $ 169,532 $ 167,623 $ 176,023 $ 1,088,377 $ 704,602 $ 712,877
Long-Lived Assets 307,736       116,350       307,736 116,350 117,711
United States                      
Revenues from External Customers and Long-Lived Assets [Line Items]                      
Revenues                 671,511 336,848 324,600
Long-Lived Assets 257,939       65,742       257,939 65,742 64,713
Mexico                      
Revenues from External Customers and Long-Lived Assets [Line Items]                      
Revenues                 397,549 367,754 388,277
Long-Lived Assets 47,243       49,259       47,243 49,259 52,998
Other Latin America                      
Revenues from External Customers and Long-Lived Assets [Line Items]                      
Revenues                 19,317 0 0
Long-Lived Assets $ 2,554       $ 1,349       $ 2,554 $ 1,349 $ 0