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Subsequent Events (Details) (USD $)
1 Months Ended 9 Months Ended 0 Months Ended 9 Months Ended 0 Months Ended 9 Months Ended
Nov. 10, 2014
Sep. 30, 2014
Sep. 30, 2013
Dec. 31, 2013
Dec. 31, 2012
Aug. 05, 2014
Secured Syndicated Credit Facility [Member]
Regions Bank [Member]
Apr. 26, 2012
Secured Syndicated Credit Facility [Member]
Citi Bank [Member]
Aug. 05, 2014
Revolving Credit Facility [Member]
Secured Syndicated Credit Facility [Member]
Regions Bank [Member]
Apr. 26, 2012
Revolving Credit Facility [Member]
Secured Syndicated Credit Facility [Member]
Citi Bank [Member]
Aug. 05, 2014
Minimum [Member]
Secured Syndicated Credit Facility [Member]
Regions Bank [Member]
Apr. 26, 2012
Minimum [Member]
Secured Syndicated Credit Facility [Member]
Citi Bank [Member]
Aug. 05, 2014
Mid-range [Member]
Secured Syndicated Credit Facility [Member]
Regions Bank [Member]
Sep. 30, 2014
Mid-range [Member]
Secured Syndicated Credit Facility [Member]
Citi Bank [Member]
Aug. 05, 2014
Maximum [Member]
Secured Syndicated Credit Facility [Member]
Regions Bank [Member]
Apr. 26, 2012
Maximum [Member]
Secured Syndicated Credit Facility [Member]
Citi Bank [Member]
Nov. 03, 2014
Vertex [Member]
Sep. 30, 2014
Planetsoft [Member]
Subsequent Event [Line Items]                                  
Debt instrument, face amount           $ 150,000,000 $ 100,000,000                    
Line of Credit Facility, Expansion               200,000,000 10,000,000                
Credit agreement, maximum borrowing capacity               150,000,000 45,000,000                
Line of credit facility, term                 4 years                
Basis spread on variable interest rate                   1.75% 1.50% 1.94% 1.65% 2.25% 2.00%    
Stock Redeemed or Called During Period, Shares                                 209,656
Temporary Equity, Redemption Price Per Share                                 $ 16.86
Derivative, Fixed Interest Rate                                 20.00%
Financial Instruments Subject to Mandatory Redemption, Settlement Terms, Share Value, Amount, Current                                 3,600,000
Stock Repurchased During Period, Shares 473,910                                
Payments for Repurchase of Common Stock 6,500,000 16,482,000 2,492,000                            
Common Stock, Dividends, Per Share, Cash Paid $ 13.71                                
Payments to Acquire Businesses, Gross                               27,000,000  
Derivative Liability   $ 10,850,000   $ 14,420,000 $ 17,495,000                     $ 2,000,000