Segment and Geographic Area Information Long-Lived Assets by Geographic Area (Details) - USD ($) $ in Thousands	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Segment Reporting Information [Line Items]
Long-lived assets	$ 3,506,990	$ 2,996,661	$ 2,793,599
United States
Segment Reporting Information [Line Items]
Long-lived assets	929,291	833,002	850,689
Chile
Segment Reporting Information [Line Items]
Long-lived assets	1,406,478	1,069,859	922,878
Australia
Segment Reporting Information [Line Items]
Long-lived assets	407,141	364,624	288,553
Jordan
Segment Reporting Information [Line Items]
Long-lived assets	254,800	242,626	227,222
Netherlands
Segment Reporting Information [Line Items]
Long-lived assets	166,853	171,980	145,917
Germany
Segment Reporting Information [Line Items]
Long-lived assets	101,168	115,305	117,027
China
Segment Reporting Information [Line Items]
Long-lived assets	91,160	50,532	31,564
France
Segment Reporting Information [Line Items]
Long-lived assets	43,698	40,852	39,470
Brazil
Segment Reporting Information [Line Items]
Long-lived assets	40,464	47,255	46,380
Korea
Segment Reporting Information [Line Items]
Long-lived assets	111	495	65,963
Other foreign countries
Segment Reporting Information [Line Items]
Long-lived assets	$ 65,826	$ 60,131	$ 57,936