Segment Reporting (Details 2) - USD ($) $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2017	Sep. 30, 2017	Jun. 30, 2017	Mar. 31, 2017	Dec. 31, 2016	Sep. 30, 2016	Jun. 30, 2016	Mar. 31, 2016	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Long Lived Assets
Long Lived Assets in Entity's Country of Domicile	$ 1,084,306				$ 755,369				$ 1,084,306	$ 755,369
Revenues
Revenues	214,585	$ 159,919	$ 149,540	$ 185,554	139,204	$ 148,762	$ 156,822	$ 127,109	709,598	571,897	$ 561,407
United States
Long Lived Assets
Long Lived Assets in Entity's Country of Domicile	377,768				338,897				377,768	338,897
Revenues
Revenues									433,050	423,216	376,692
Canada
Long Lived Assets
Long Lived Assets in Entity's Country of Domicile	331,440				0				331,440	0
Mexico
Long Lived Assets
Long Lived Assets in Entity's Country of Domicile	370,188				397,697				370,188	397,697
Revenues
Revenues									274,809	142,198	171,911
Australia
Revenues
Revenues									1,739	4,128	8,732
Argentina
Long Lived Assets
Long Lived Assets in Entity's Country of Domicile	229				10,228				229	10,228
Other Foreign Countries [Member]
Long Lived Assets
Long Lived Assets in Entity's Country of Domicile	$ 4,681				$ 8,547				4,681	8,547
Revenues
Revenues									$ 0	$ 2,355	$ 4,072