|
Schedule of Tangible Long-Lived Assets by Geographic Area (Details) (USD $)
In Thousands, unless otherwise specified |
Mar. 31, 2014
|
Dec. 31, 2013
|
|---|---|---|
| Revenues from External Customers and Long-Lived Assets | ||
| Long-lived Assets | $ 593,867 | $ 546,651 |
|
United States
|
||
| Revenues from External Customers and Long-Lived Assets | ||
| Long-lived Assets | 456,219 | 418,869 |
|
United Kingdom
|
||
| Revenues from External Customers and Long-Lived Assets | ||
| Long-lived Assets | 88,420 | 77,827 |
|
Other countries
|
||
| Revenues from External Customers and Long-Lived Assets | ||
| Long-lived Assets | $ 49,228 | $ 49,955 |