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Goodwill and Other Intangible Assets - Additional Information (Details) - USD ($)
3 Months Ended 9 Months Ended
Sep. 30, 2016
Sep. 30, 2016
Goodwill and Intangible Assets Disclosure [Abstract]    
Goodwill impairment   $ 0
Software | Electronic Funds Source LLC    
Finite-Lived Intangible Assets [Line Items]    
Accelerated amortization of intangible assets $ 5,900,000