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Income Taxes (Tables)
 9 Months Ended
Sep. 30, 2013
Income Tax Disclosure [Abstract]  
Reconciliation of Statutory Federal Income Tax Rate to Effective Income Tax Rate
The statutory federal income tax rate is reconciled to our effective income tax rate below:

Effective tax rate
Nine months ended
  
Sept. 30, 2013

Sept. 30, 2012

Federal rate
35.0
 %
35.0
 %
State and local income taxes, net of federal income tax benefit
3.0

2.3

Tax-exempt income
(2.8
)
(3.6
)
Foreign operations
(4.5
)
(5.1
)
Tax credits
(3.4
)
(5.0
)
Tax litigation
19.8

—

Other - net
(1.6
)
(0.3
)
Effective rate
45.5
 %
23.3
 %