Summary of Significant Accounting Policies | 2. SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES Use of Estimates in Preparation of Financial Statements. The preparation of the accompanying Financial Statements in conformity with U.S. GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the date of our Financial Statements, and the reported amounts of revenue and expenses during the reporting periods. Actual results could differ from those estimates. Revenue. The majority of our future revenue is related to our revenue management solution client contracts that include variable consideration dependent upon a series of monthly volumes and/or daily usage of services and have contractual terms ending from 2020 through 2028. Our client contracts may also include guaranteed minimums and fixed monthly or annual fees. As of March 31, 2020, our aggregate amount of the transaction price allocated to the remaining performance obligations is approximately $1 billion, which is made up of fixed fee consideration and guaranteed minimums expected to be recognized in the future related to performance obligations that are unsatisfied (or partially unsatisfied). We expect to recognize approximately 75% of this amount by the end of 2022, with the remaining amount recognized by the end of 2028. We have excluded from this amount variable consideration expected to be recognized in the future related to performance obligations that are unsatisfied. The nature, amount, timing and uncertainty of our revenue and how revenue and cash flows are affected by economic factors is most appropriately depicted by geographic region (using the location of the client as the basis of attributing revenue to the individual regions) as follows (in thousands): Quarter Ended March 31, 2020 2019 Americas (principally the U.S.) $ 216,997 $ 210,729 Europe, Middle East, and Africa 21,032 24,626 Asia Pacific 7,588 9,438 Total revenue $ 245,617 $ 244,793 Deferred revenue recognized in the first quarter of 2020 was $17.7 million. Cash and Cash Equivalents. We consider all highly liquid investments with original maturities of three months or less at the date of the purchase to be cash equivalents. As of March 31, 2020 and December 31, 2019, our cash equivalents consist primarily of institutional money market funds, commercial paper, and time deposits held at major banks. As of March 31, 2020 and December 31, 2019, we had $2.6 million and $2.7 million, respectively, of restricted cash that serves to collateralize outstanding letters of credit. This restricted cash is included in cash and cash equivalents in our Condensed Consolidated Balance Sheets (“Balance Sheets” or “Balance Sheet”). Short-term Investments and Other Financial Instruments . Our financial instruments as of March 31, 2020 and December 31, 2019 include cash and cash equivalents, short-term investments, accounts receivable, accounts payable, and debt. Because of their short maturities, the carrying amounts of cash equivalents, accounts receivable, and accounts payable approximate their fair value. Our short-term investments and certain of our cash equivalents are considered “available-for-sale” and are reported at fair value in our Balance Sheets, with unrealized gains and losses, net of the related income tax effect, excluded from earnings and reported in a separate component of stockholders’ equity. Realized and unrealized gains and losses were not material in any period presented. Primarily all short-term investments held by us as of March 31, 2020 and December 31, 2019 have contractual maturities of less than two years from the time of acquisition. Our short-term investments as of March 31, 2020 and December 31, 2019 consisted almost entirely of fixed income securities. Proceeds from the sale/maturity of short-term investments for the three months ended March 31, 2020 and 2019 were $18.7 million and $19.6 million, respectively. Our short-term investments as of March 31, 2020 and December 31, 2019 were $23.5 million and $26.1 million, respectively. The following table represents the fair value hierarchy based upon three levels of inputs, of which Levels 1 and 2 are considered observable and Level 3 is unobservable, for our financial assets measured at fair value (in thousands): March 31, 2020 December 31, 2019 Level 1 Level 2 Total Level 1 Level 2 Total Cash equivalents: Money market funds $ 4,150 $ — $ 4,150 $ 4,847 $ — $ 4,847 Commercial paper — 9,393 9,393 — 26,964 26,964 Short-term investments: Corporate debt securities — 19,595 19,595 — 22,159 22,159 Asset-backed securities — 3,934 3,934 — 3,950 3,950 Total $ 4,150 $ 32,922 $ 37,072 $ 4,847 $ 53,073 $ 57,920 Valuation inputs used to measure the fair values of our money market funds and corporate equity securities were derived from quoted market prices. The fair values of all other financial instruments are based upon pricing provided by third-party pricing services. These prices were derived from observable market inputs. We have chosen not to measure our debt at fair value, with changes recognized in earnings each reporting period. The following table indicates the carrying value (par value for convertible debt) and estimated fair value of our debt as of the indicated periods (in thousands): March 31, 2020 December 31, 2019 Carrying Fair Carrying Fair Value Value Value Value 2018 Credit Agreement (carrying value including current maturities) $ 135,000 $ 135,000 $ 136,875 $ 136,875 2016 Convertible Debt (par value) 230,000 236,325 230,000 262,775 The fair value for our credit agreement was estimated using a discounted cash flow methodology, while the fair value for our convertible debt was estimated based upon quoted market prices or recent sales activity, both of which are considered Level 2 inputs. Equity Method Investment. As of March 31, 2020, we held an 8% noncontrolling interest in a payment technology and services company with a carrying value of $6.6 million. |