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Segment Reporting (Schedule of Net Long-Lived Assets by Principal Geographic Areas) (Details) - USD ($) $ in Thousands | Dec. 31, 2018 | Jan. 01, 2018 | Dec. 31, 2017
--- | --- | --- | ---
Revenues from External Customers and Long-Lived Assets [Line Items] |  |  |
Property and equipment, net | $ 437,270 | $ 379,096 | $ 379,096
United States |  |  |
Revenues from External Customers and Long-Lived Assets [Line Items] |  |  |
Property and equipment, net | 348,240 |  | 310,696
Brazil |  |  |
Revenues from External Customers and Long-Lived Assets [Line Items] |  |  |
Property and equipment, net | 16,735 |  | 17,030
Canada |  |  |
Revenues from External Customers and Long-Lived Assets [Line Items] |  |  |
Property and equipment, net | 1,859 |  | 2,238
Americas |  |  |
Revenues from External Customers and Long-Lived Assets [Line Items] |  |  |
Property and equipment, net | 366,834 |  | 329,964
Germany |  |  |
Revenues from External Customers and Long-Lived Assets [Line Items] |  |  |
Property and equipment, net | 25,036 |  | 7,522
United Kingdom |  |  |
Revenues from External Customers and Long-Lived Assets [Line Items] |  |  |
Property and equipment, net | 11,517 |  | 11,528
Netherlands |  |  |
Revenues from External Customers and Long-Lived Assets [Line Items] |  |  |
Property and equipment, net | 10,273 |  | 8,225
France |  |  |
Revenues from External Customers and Long-Lived Assets [Line Items] |  |  |
Property and equipment, net | 2,130 |  | 2,305
Switzerland |  |  |
Revenues from External Customers and Long-Lived Assets [Line Items] |  |  |
Property and equipment, net | 2,742 |  | 1,755
Other |  |  |
Revenues from External Customers and Long-Lived Assets [Line Items] |  |  |
Property and equipment, net | 3,763 |  | 3,838
Europe, the Middle East and Africa |  |  |
Revenues from External Customers and Long-Lived Assets [Line Items] |  |  |
Property and equipment, net | 55,461 |  | 35,173
Japan |  |  |
Revenues from External Customers and Long-Lived Assets [Line Items] |  |  |
Property and equipment, net | 5,296 |  | 4,065
Australia |  |  |
Revenues from External Customers and Long-Lived Assets [Line Items] |  |  |
Property and equipment, net | 4,257 |  | 4,426
Other |  |  |
Revenues from External Customers and Long-Lived Assets [Line Items] |  |  |
Property and equipment, net | 5,422 |  | 5,468
Asia Pacific Region |  |  |
Revenues from External Customers and Long-Lived Assets [Line Items] |  |  |
Property and equipment, net | $ 14,975 |  | $ 13,959

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