Quarterly report pursuant to Section 13 or 15(d)

Acquisitions (Pro Forma) (Details)

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Acquisitions (Pro Forma) (Details) - KMS Financial Services, Inc. and Securities Service Network, Inc. (SSN) - USD ($)
$ / shares in Units, $ in Thousands
3 Months Ended 9 Months Ended
Sep. 30, 2014
Sep. 30, 2015
Sep. 30, 2014
Business Acquisition [Line Items]      
Revenue $ 278,763   $ 835,779
Net (loss) income (4,241)   410
Net loss available to common shareholders $ (9,069)   $ (11,310)
Basic and diluted loss per share available to common shareholders $ (0.05)   $ (0.06)
Weighted average common shares outstanding:      
Basic and diluted 185,257,947   185,486,802
Stock issued in acquisition, shares   3,981,684