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Derivatives (Tranzact Interest Rate Swap) (Details) - Tranzact [Member] - USD ($)
$ in Millions
Sep. 30, 2015
Jun. 30, 2015
Dec. 31, 2014
Oct. 10, 2014
Tranzact Bank Facility [Member]        
Derivative [Line Items]        
Line of Credit Facility, Fair Value of Amount Outstanding $ 93.8   $ 67.4  
Long-term Debt, Percentage Bearing Variable Interest, Percentage Rate   4.697%    
Notional amount $ 101.0     $ 70.0
Minimum | Tranzact Bank Facility [Member]        
Derivative [Line Items]        
LIBOR rate   4.50%    
Interest Rate Swap [Member]        
Derivative [Line Items]        
Derivative, Fixed Interest Rate   1.34%    
Derivative, Variable Interest Rate   0.198%   0.1518%
Debt Instrument, Interest Rate, Effective Percentage   6.04%    
Derivative, fair value, net   $ (0.8)