|
General (Details 3) (USD $)
In Millions, unless otherwise specified |
3 Months Ended | |
|---|---|---|
|
Mar. 31, 2013
|
Mar. 31, 2012
|
|
| Derivative Instruments | ||
| Period for which certain forecasted foreign currency rent and salary payments are hedged | 12 months | |
| Notional amount of foreign currency forward contracts and options outstanding | $ 11.6 | |
| Net fair value balance of foreign currency forward contracts and options outstanding | 0.5 | |
| Fair value asset balance of foreign currency forward contracts and options outstanding | 0.6 | |
| Fair value liability balance of foreign currency forward contracts and options outstanding | 0.1 | |
| Period expected to be recognized in results of operations | 12 months | |
| Gain on hedging activities | 0.2 | 0 |
| Cash in banks with counterparty | $ 1.6 | |