XML 32 R28.htm IDEA: XBRL DOCUMENT
v2.4.0.8

Stock-Based Compensation Plans (Tables) | 6 Months Ended
--- | ---
Jun. 30, 2014
Disclosure of Compensation Related Costs, Share-based Payments [Abstract] |
Restricted Stock Awards | A summary of the awards as of June 30, 2014, along with the changes during the six months then ended, is as follows:
|  | Awards |  | Weighted Average Grant Date Fair Value
Nonvested at December 31, 2013 |  | 933,740 |  |  | $ | 49.87 |
Granted |  | 249,440 |  |  | 66.28 |
Vested |  | (148,965 | ) |  | 46.71 |
Forfeited |  | (40,310 | ) |  | 51.52 |
Nonvested at June 30, 2014 |  | 993,905 |  |  | $ | 54.39 |

X
- Details
Name: | us-gaap_DisclosureOfCompensationRelatedCostsSharebasedPaymentsAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Disclosure of the number and weighted-average grant date fair value for restricted stock and restricted stock units that were outstanding at the beginning and end of the year, and the number of restricted stock and restricted stock units that were granted, vested, or forfeited during the year. + References No definition available. + Details
Name: | us-gaap_ScheduleOfSharebasedCompensationRestrictedStockAndRestrictedStockUnitsActivityTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration