|
Significant Accounting Policies (Details) (USD $)
In Thousands, unless otherwise specified |
12 Months Ended | ||
|---|---|---|---|
|
Dec. 31, 2013
|
Dec. 31, 2012
|
Dec. 31, 2011
|
|
| Beginning Balance | $ 117,953 | $ 107,432 | $ 77,560 |
| Redemptions | (4,270) | (16,712) | (9,068) |
| Granted | 0 | 4,189 | 15,318 |
| Changes in redemption value | 35,689 | 22,912 | 24,532 |
| Currency translation adjustments | (838) | 132 | (910) |
| Ending Balance | $ 148,534 | $ 117,953 | $ 107,432 |