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Summary of Significant Accounting Policies (Policies) | 6 Months Ended
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Jun. 30, 2014
Use of Estimates in Preparation of Financial Statements | Use of Estimates in Preparation of Financial Statements. The preparation of the accompanying Financial Statements in conformity with 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 revenues and expenses during the reporting periods. Actual results could differ from those estimates.
Reclassifications | Reclassifications. Maintenance revenues, as well as the cost of maintenance revenues, previously included in software, maintenance and service revenues and software, maintenance and services costs of revenues, respectively, have been presented separately in our Condensed Consolidated Statements of Income (“Income Statements” or “Income Statement”) for the quarter and six months ended June 30, 2013. In addition, certain other 2013 amounts have been reclassified to conform to the 2014 presentation.
Cash and Cash Equivalents | 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 June 30, 2014 and December 31, 2013, our cash equivalents consist primarily of institutional money market funds, commercial paper, and time deposits held at major banks. As of June 30, 2014 and December 31, 2013, we had $4.9 million and $4.5 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 | Short-term Investments and Other Financial Instruments. Our financial instruments as of June 30, 2014 and December 31, 2013 include cash and cash equivalents, short-term investments, accounts receivable, accounts payable, an interest rate swap contract, 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 June 30, 2014 and December 31, 2013 have contractual maturities of less than two years from the time of acquisition. Our short-term investments as of June 30, 2014 and December 31, 2013 consisted almost entirely of fixed income securities. Proceeds from the sale/maturity of short-term investments for the six months ended June 30, 2014 and 2013 were $109.1 million and $41.4 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 and liabilities measured at fair value (in thousands):
|  | June 30, 2014 |  |  | December 31, 2013 |
|  | Level 1 |  |  |  | Level 2 |  |  |  | Total |  |  | Level 1 |  |  | Level 2 |  |  | Total |
Assets: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Cash equivalents: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Money market funds |  | $ | 18,771 |  |  | $ | — |  |  | $ | 18,771 |  |  | $ | 13,761 |  |  | $ | — |  |  | $ | 13,761 |
Commercial paper |  |  | — |  |  |  | 9,649 |  |  |  | 9,649 |  |  |  | — |  |  |  | 19,629 |  |  |  | 19,629 |
Short-term investments: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Corporate debt securities |  |  | — |  |  |  | 50,892 |  |  |  | 50,892 |  |  |  | — |  |  |  | 76,786 |  |  |  | 76,786 |
Municipal bonds |  |  | — |  |  |  | 24,920 |  |  |  | 24,920 |  |  |  | — |  |  |  | 29,106 |  |  |  | 29,106 |
U.S. government agency bonds |  |  | — |  |  |  | 14,033 |  |  |  | 14,033 |  |  |  | — |  |  |  | 18,050 |  |  |  | 18,050 |
Asset-backed securities |  |  | — |  |  |  | 13,616 |  |  |  | 13,616 |  |  |  |  |  |  |  | 4,209 |  |  |  | 4,209 |
Total |  | $ | 18,771 |  |  | $ | 113,110 |  |  | $ | 131,881 |  |  | $ | 13,761 |  |  | $ | 147,780 |  |  | $ | 161,541 |
Liabilities: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Interest rate swap contract (1) |  | $ | — |  |  | $ | — |  |  | $ | — |  |  | $ | — |  |  | $ | 154 |  |  | $ | 154 |
Total |  | $ | — |  |  | $ | — |  |  | $ | — |  |  | $ | — |  |  | $ | 154 |  |  | $ | 154 |
(1) | As of December 31, 2013, the fair value of the interest rate swap contract was classified on our Balance Sheet in other current liabilities.
Valuation inputs used to measure the fair values of our money market funds 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 and estimated fair value of our debt as of the indicated periods (in thousands):
| June 30, 2014 |  |  | December 31, 2013 |
| Carrying Value |  |  | Fair Value |  |  | Carrying Value |  |  | Fair Value |
Credit Agreement (carrying value including current maturities) | $ | 127,500 |  |  | $ | 127,500 |  |  | $ | 135,000 |  |  | $ | 135,000 |
Convertible debt (par value) |  | 150,000 |  |  |  | 188,145 |  |  |  | 150,000 |  |  |  | 199,800 |
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.
Accounting Pronouncement Issued but Not yet Effective | Accounting Pronouncement Issued But Not Yet Effective. In May 2014, the Financial Accounting Standards Board (“FASB”) issued Accounting Standards Update (“ASU”) 2014-09, Revenue from Contracts with Customers (Topic 606). This ASU is a single comprehensive model which supersedes nearly all existing revenue recognition guidance under U.S. GAAP. Under the new guidance, revenue is recognized when promised goods or services are transferred to customers in an amount that reflects the consideration that is expected to be received for those goods or services. The ASU also requires additional disclosure about the nature, amount, timing, and uncertainty of revenue and cash flows arising from customer contracts, including significant judgments and changes in judgments and assets recognized from costs incurred to obtain or fulfill a contract. The updated accounting guidance is effective for annual and interim reporting periods in fiscal years beginning after December 15, 2016. Early adoption is not permitted. An entity may choose to adopt this ASU either retrospectively or through a cumulative effect adjustment as of the start of the first period for which it applies the standard. We are currently in the process of evaluating the impact that this new guidance will have on our consolidated financial statements and our method of adoption.

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- Definition Disclosure of accounting policy for cash and cash equivalents, including the policy for determining which items are treated as cash equivalents. Other information that may be disclosed includes (1) the nature of any restrictions on the entity's use of its cash and cash equivalents, (2) whether the entity's cash and cash equivalents are insured or expose the entity to credit risk, (3) the classification of any negative balance accounts (overdrafts), and (4) the carrying basis of cash equivalents (for example, at cost) and whether the carrying amount of cash equivalents approximates fair value. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=6367646&loc=d3e18780-107790 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Cash -URI http://asc.fasb.org/extlink&oid=6506951 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Cash Equivalents -URI http://asc.fasb.org/extlink&oid=6507016 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 1 -Article 5 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 305 -SubTopic 10 -URI http://asc.fasb.org/subtopic&trid=2122427 Reference 6: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6367179&loc=d3e4273-108586 Reference 7: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Financial Reporting Release (FRR) -Number 203 -Paragraph 02-03 + Details
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- Definition The entire disclosure for classifying current financial statements, which may be different from classifications in the prior year's financial statements. Disclose any material changes in classification including an explanation of the reason for the change and the areas impacted. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 04 -Article 3 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 205 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6359566&loc=d3e326-107755 + Details
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