|
Earnings Per Share (Details) 2 (Anti-dilutive Stock Options and RSU)
|
3 Months Ended | |
|---|---|---|
|
Mar. 31, 2013
|
Mar. 31, 2012
|
|
|
Anti-dilutive Stock Options and RSU
|
||
| Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items] | ||
| Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount | 503,379 | 393,693 |