Basis of Presentation and Summary of Significant Accounting Policies (Policies)	6 Months Ended
	Jun. 30, 2016
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Basis of Presentation	Basis of Presentation The accompanying unaudited consolidated financial statements of the Company should be read in conjunction with the Company’s Annual Report on Form 10-K for the year ended December 31, 2015. Significant accounting policies disclosed therein have not changed. The accompanying consolidated financial statements are unaudited; however, in the opinion of management, they include all normal recurring adjustments necessary for a fair presentation of the consolidated financial position of the Company as of June 30, 2016 and December 31, 2015 and the consolidated results of the Company's operations, comprehensive income (loss), consolidated cash flows and changes in equity for the three and six months ended June 30, 2016 and 2015. Results of operations reported for interim periods are not necessarily indicative of results for the entire year due in part to the seasonality of certain business units.
Use of Estimates	Use of Estimates The preparation of financial statements in conformity with accounting principles generally accepted in the United States requires management to make estimates and assumptions that affect the amounts reported in the unaudited consolidated financial statements and accompanying notes. Actual results could differ from those estimates.
Revenue Recognition	Revenue Recognition The majority of the Company’s revenues are comprised of: 1) transaction-based fees, which typically constitute a percentage of dollar volume processed; 2) fees per transaction processed; 3) fees per account on file during the period; or 4) some combination thereof. The Company’s arrangements with clients often consist of multiple services and products (multiple-element arrangements). In accounting for these multiple-element arrangements, the Company assesses the elements of the contract and whether each element has standalone value and allocates revenue to the various elements based on their estimated selling price as a component of total consideration for the arrangement. The selling price is based on current selling prices offered by the Company or another party for current products or management's best estimate of a selling price. In the case of contracts that the Company owns and manages, revenue is comprised of fees charged to the client, net of interchange fees and assessments charged by the credit card associations, and is recognized at the time the client accepts a point of sale transaction. The fees charged to the client are a percentage of the credit card and signature-based debit card transaction’s dollar value, a fixed amount, or a combination of the two. Personal identification number based debit (PIN-debit) network fees are recognized in “Reimbursable PIN debit fees, postage, and other” revenues and expenses in the unaudited consolidated statements of operations. STAR Network access fees charged to clients are assessed on a per transaction basis.
Deferred Revenue	The Company records deferred revenue when it receives payments in advance of the delivery of products or the performance of services. The deferred revenue is recognized into earnings when underlying performance obligations are achieved.
New Accounting Guidance	New Accounting Guidance In May 2014, the Financial Accounting Standards Board (FASB) issued guidance that requires companies to recognize revenue to depict the transfer of goods or services to customers in amounts that reflect the consideration to which the company expects to be entitled in an exchange for those goods or services. It also requires enhanced disclosures about revenue, provides guidance for transactions that were not previously addressed comprehensively, and improves guidance for multiple-element arrangements. The guidance applies to any entity that either enters into contracts with customers to transfer goods or services or enters into contracts for the transfer of nonfinancial assets unless those contracts are within the scope of other standards. As amended in August 2015, the guidance is effective for public companies for annual periods beginning after December 15, 2017 as well as interim periods within those annual periods using either the full retrospective approach or modified retrospective approach. The FASB also permitted early adoption of the standard, but not before December 15, 2016. The Company is currently evaluating the impacts of the new guidance on its consolidated financial statements. In February 2016, the FASB issued guidance which requires lessees to put most leases on their balance sheets. The guidance also modifies the classification criteria and the accounting for sales-type and direct financing leases for lessors and provides new presentation and disclosure requirements for both lessees and lessors. The standard is effective for financial statements issued for fiscal years beginning after December 15, 2018, and interim periods within those fiscal years. Early adoption is permitted in any interim or annual period subsequent to adoption of the proceeding revenue recognition guidance. The Company is currently evaluating the impact of adoption of the new guidance on its consolidated financial statements. In March 2016, the FASB issued guidance that will change some aspects of the accounting for stock-based payments to employees. Under the new guidance, companies will be required to record all excess tax benefits and tax deficiencies as income tax expense or benefit in the income statement and to present excess tax benefits as an operating activity on the statement of cash flows. The guidance may also change how companies account for forfeitures and an employee’s use of shares to satisfy the employer’s statutory income tax withholding obligation. The new guidance will be effective for public companies for fiscal years beginning after December 15, 2016 as well as interim periods within those annual periods. Early adoption is permitted in any interim or annual period. The Company is currently evaluating the impact of the new guidance on its consolidated financial statements. In June 2016, the FASB issued guidance that will change the accounting for credit impairment. Under the new guidance, companies are required to measure all expected credit losses for financial instruments held at the reporting date based on historical experience, current conditions and reasonable supportable forecasts. This replaces the existing incurred loss model and is applicable to the measurement of credit losses on financial assets measured at amortized cost and applies to some off-balance sheet credit exposures. This new guidance will be effective for public companies for fiscal years beginning after December 15, 2019, including interim periods within those fiscal years. Early adoption is permitted for fiscal years beginning after December 15, 2018. The Company is currently evaluating the impact of the new guidance on its consolidated financial statements.