Segment Information - Long-Lived Assets By Geographic Region (Details) - USD ($) $ in Thousands |
Dec. 31, 2016 |
Dec. 31, 2015 |
|---|---|---|
| Segment Reporting Information [Line Items] | ||
| Total long-lived assets | $ 127,487 | $ 131,812 |
| United States [Member] | ||
| Segment Reporting Information [Line Items] | ||
| Total long-lived assets | 93,845 | 96,362 |
| Israel [Member] | ||
| Segment Reporting Information [Line Items] | ||
| Total long-lived assets | 13,940 | 16,393 |
| Australia [Member] | ||
| Segment Reporting Information [Line Items] | ||
| Total long-lived assets | 9,496 | 8,290 |
| Netherlands [Member] | ||
| Segment Reporting Information [Line Items] | ||
| Total long-lived assets | 7,495 | 8,285 |
| Other [Member] | ||
| Segment Reporting Information [Line Items] | ||
| Total long-lived assets | $ 2,711 | $ 2,482 |