Segment Reporting (Details 1) - USD ($) $ in Thousands	Sep. 30, 2017	Dec. 31, 2016
Americas:
Total Americas	$ 194,886	$ 194,507
Total long-lived assets	244,620	238,607
United States [Member]
Summary of long-lived assets by geography
Long-Lived Assets in Individual Foreign Countries	194,245	193,750
Other Americas [Member]
Summary of long-lived assets by geography
Long-Lived Assets in Individual Foreign Countries	641	757
Asia [Member]
Summary of long-lived assets by geography
Long-Lived Assets in Individual Foreign Countries	34,925	30,564
EMEA [Member]
Summary of long-lived assets by geography
Long-Lived Assets in Individual Foreign Countries	14,106	12,692
Japan [Member]
Summary of long-lived assets by geography
Long-Lived Assets in Individual Foreign Countries	$ 703	$ 844