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Funds Held for Clients and Corporate Investments | 3 Months Ended
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Aug. 31, 2018
Funds Held for Clients and Corporate Investments [Abstract] |
Funds Held for Clients and Corporate Investments | Note F: Funds Held for Clients and Corporate Investments ﻿ Funds held for clients and corporate investments are as follows: ﻿ ﻿
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﻿ |  |  |  |  |  |  |  |  |  |  |  |
﻿ |  |  |  |  |  |  |  |  |  |  |  |
﻿ |  | August 31, 2018
﻿ |  |  |  |  | Gross |  | Gross |  |  |
﻿ |  | Amortized |  | unrealized |  | unrealized |  | Fair
﻿In millions |  | cost |  | gains |  | losses |  | value
﻿Type of issue: |  |  |  |  |  |  |  |  |  |  |  |
﻿Funds held for clients' money market securities and other cash equivalents |  | $ | 1,179.8 |  | $ | — |  | $ | — |  | $ | 1,179.8
﻿Available-for-sale securities: |  |  |  |  |  |  |  |  |  |  |  |
﻿Corporate bonds |  |  | 367.7 |  |  | 0.3 |  |  | (7.3) |  |  | 360.7
﻿General obligation municipal bonds |  |  | 1,149.8 |  |  | 1.3 |  |  | (9.7) |  |  | 1,141.4
﻿Pre-refunded municipal bonds(1) |  |  | 45.7 |  |  | 0.2 |  |  | (0.1) |  |  | 45.8
﻿Revenue municipal bonds |  |  | 767.5 |  |  | 1.0 |  |  | (7.1) |  |  | 761.4
﻿U.S. government agency securities |  |  | 454.5 |  |  | 0.1 |  |  | (14.6) |  |  | 440.0
﻿Variable rate demand notes |  |  | 162.3 |  |  | — |  |  | — |  |  | 162.3
﻿Total available-for-sale securities |  |  | 2,947.5 |  |  | 2.9 |  |  | (38.8) |  |  | 2,911.6
﻿Other |  |  | 17.4 |  |  | 2.5 |  |  | — |  |  | 19.9
﻿Total funds held for clients and corporate investments |  | $ | 4,144.7 |  | $ | 5.4 |  | $ | (38.8) |  | $ | 4,111.3
﻿ ﻿ ﻿
﻿ |  |  |  |  |  |  |  |  |  |  |  |
﻿ |  |  |  |  |  |  |  |  |  |  |  |
﻿ |  | May 31, 2018
﻿ |  |  |  |  | Gross |  | Gross |  |  |
﻿ |  | Amortized |  | unrealized |  | unrealized |  | Fair
﻿In millions |  | cost |  | gains |  | losses |  | value
﻿Type of issue: |  |  |  |  |  |  |  |  |  |  |  |
﻿Funds held for clients' money market securities and other cash equivalents |  | $ | 1,942.3 |  | $ | — |  | $ | — |  | $ | 1,942.3
﻿Available-for-sale securities: |  |  |  |  |  |  |  |  |  |  |  |
﻿Corporate bonds |  |  | 328.6 |  |  | 0.1 |  |  | (7.3) |  |  | 321.4
﻿General obligation municipal bonds |  |  | 1,231.6 |  |  | 1.3 |  |  | (11.2) |  |  | 1,221.7
﻿Pre-refunded municipal bonds(1) |  |  | 50.9 |  |  | 0.1 |  |  | (0.1) |  |  | 50.9
﻿Revenue municipal bonds |  |  | 813.5 |  |  | 0.9 |  |  | (8.0) |  |  | 806.4
﻿U.S. government agency securities |  |  | 410.2 |  |  | — |  |  | (14.1) |  |  | 396.1
﻿Variable rate demand notes |  |  | 308.3 |  |  | — |  |  | — |  |  | 308.3
﻿Total available-for-sale securities |  |  | 3,143.1 |  |  | 2.4 |  |  | (40.7) |  |  | 3,104.8
﻿Other |  |  | 16.1 |  |  | 2.1 |  |  | — |  |  | 18.2
﻿Total funds held for clients and corporate investments |  | $ | 5,101.5 |  | $ | 4.5 |  | $ | (40.7) |  | $ | 5,065.3
﻿ (1) Pre-refunded municipal bonds are secured by an escrow fund of U.S. government obligations. ﻿ Included in money market securities and other cash equivalents as of August 31, 2018 and May 31, 2018 were bank demand deposit accounts, time deposits, commercial paper, and money market funds. In addition, as of August 31, 2018, certain U.S. government agency securities with maturities of 90 days or less at acquisition were also included in money market securities and other cash equivalents. ﻿ Classification of investments on the Consolidated Balance Sheets is as follows: ﻿ ﻿
﻿ |  |  |  |  |  |
﻿ |  |  |  |  |  |
﻿ |  | August 31, |  | May 31,
﻿In millions |  | 2018 |  | 2018
﻿Funds held for clients |  | $ | 3,763.8 |  | $ | 4,703.8
﻿Corporate investments |  |  | 82.9 |  |  | 66.0
﻿Long-term corporate investments |  |  | 264.6 |  |  | 295.5
﻿Total funds held for clients and corporate investments |  | $ | 4,111.3 |  | $ | 5,065.3
﻿ The Company’s available-for-sale securities reflected net unrealized losses of $35.9 million and $38.3 million as of August 31, 2018 and May 31, 2018, respectively. Included in the net unrealized loss totals as of August 31, 2018 and May 31, 2018, were 916 and 970 available-for-sale securities in an unrealized loss position, respectively. The available-for-sale securities in an unrealized loss position were as follows: ﻿ ﻿
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﻿ |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
﻿ |  | August 31, 2018
﻿ |  | Securities in an unrealized loss position for less than twelve months |  | Securities in an unrealized loss position for more than twelve months |  | Total
﻿ |  | Gross |  |  |  |  | Gross |  |  |  |  | Gross |  |  |
﻿ |  | unrealized |  | Fair |  | unrealized |  | Fair |  | unrealized |  | Fair
﻿In millions |  | losses |  | value |  | losses |  | value |  | losses |  | value
﻿Type of issue: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
﻿Corporate bonds |  | $ | (5.8) |  | $ | 272.9 |  | $ | (1.5) |  | $ | 39.7 |  | $ | (7.3) |  | $ | 312.6
﻿General obligation municipal bonds |  |  | (7.4) |  |  | 745.1 |  |  | (2.3) |  |  | 64.1 |  |  | (9.7) |  |  | 809.2
﻿Pre-refunded municipal bonds |  |  | (0.1) |  |  | 12.8 |  |  | — |  |  | 0.5 |  |  | (0.1) |  |  | 13.3
﻿Revenue municipal bonds |  |  | (5.2) |  |  | 445.1 |  |  | (1.9) |  |  | 55.6 |  |  | (7.1) |  |  | 500.7
﻿U.S. government agency securities |  |  | (7.0) |  |  | 232.8 |  |  | (7.6) |  |  | 176.7 |  |  | (14.6) |  |  | 409.5
﻿Total |  | $ | (25.5) |  | $ | 1,708.7 |  | $ | (13.3) |  | $ | 336.6 |  | $ | (38.8) |  | $ | 2,045.3
﻿
﻿ |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
﻿ |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
﻿ |  | May 31, 2018
﻿ |  | Securities in an unrealized loss position for less than twelve months |  | Securities in an unrealized loss position for more than twelve months |  | Total
﻿ |  | Gross |  |  |  |  | Gross |  |  |  |  | Gross |  |  |
﻿ |  | unrealized |  | Fair |  | unrealized |  | Fair |  | unrealized |  | Fair
﻿In millions |  | losses |  | value |  | losses |  | value |  | losses |  | value
﻿Type of issue: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
﻿Corporate bonds |  | $ | (6.0) |  | $ | 271.5 |  | $ | (1.3) |  | $ | 34.6 |  | $ | (7.3) |  | $ | 306.1
﻿General obligation municipal bonds |  |  | (8.7) |  |  | 856.4 |  |  | (2.5) |  |  | 68.9 |  |  | (11.2) |  |  | 925.3
﻿Pre-refunded municipal bonds |  |  | (0.1) |  |  | 18.5 |  |  | — |  |  | 0.5 |  |  | (0.1) |  |  | 19.0
﻿Revenue municipal bonds |  |  | (6.3) |  |  | 540.9 |  |  | (1.7) |  |  | 50.9 |  |  | (8.0) |  |  | 591.8
﻿U.S. government agency securities |  |  | (6.4) |  |  | 219.7 |  |  | (7.7) |  |  | 176.4 |  |  | (14.1) |  |  | 396.1
﻿Total |  | $ | (27.5) |  | $ | 1,907.0 |  | $ | (13.2) |  | $ | 331.3 |  | $ | (40.7) |  | $ | 2,238.3
﻿ The Company regularly reviews its investment portfolios to determine if any investment is other-than-temporarily impaired due to changes in credit risk or other potential valuation concerns. The Company believes that the investments held as of August 31, 2018 that had gross unrealized losses of $38.8 million were not other-than-temporarily impaired. The Company believes that it is probable that the principal and interest will be collected in accordance with contractual terms, and that the unrealized losses on these securities were due to changes in interest rates and were not due to increased credit risk or other valuation concerns. A majority of the securities in an unrealized loss position as of August 31, 2018 and May 31, 2018 held an AA rating or better. The Company does not intend to sell these investments until the recovery of their amortized cost basis or maturity, and further believes that it is not more-likely-than-not that it will be required to sell these investments prior to that time. The Company’s assessment that an investment is not other-than-temporarily impaired could change in the future due to new developments or changes in the Company’s strategies or assumptions related to any particular investment. ﻿ Realized gains and losses on the sales of securities are determined by specific identification of the amortized cost basis of each security. On the Consolidated Statements of Income and Comprehensive Income, realized gains and losses from funds held for clients are included in interest on funds held for clients and realized gains and losses from corporate investments are included in investment income, net. Realized gains were insignificant for the three months ended August 31, 2018 and August 31, 2017. There were no realized losses for the three months ended August 31, 2018 and August 31, 2017. ﻿ The amortized cost and fair value of available-for-sale securities that had stated maturities as of August 31, 2018 are shown below by contractual maturity. Expected maturities can differ from contractual maturities because borrowers may have the right to prepay obligations without prepayment penalties. ﻿ ﻿
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﻿ |  | August 31, 2018
﻿ |  |  |  |  |  |
﻿ |  | Amortized |  | Fair
﻿In millions |  | cost |  | value
﻿Maturity date: |  |  |  |  |  |
﻿Due in one year or less |  | $ | 382.8 |  | $ | 382.4
﻿Due after one year through three years |  |  | 788.0 |  |  | 784.6
﻿Due after three years through five years |  |  | 979.8 |  |  | 965.6
﻿Due after five years |  |  | 796.9 |  |  | 779.0
﻿Total |  | $ | 2,947.5 |  | $ | 2,911.6
﻿ Variable rate demand notes are primarily categorized as due after five years in the table above as the contractual maturities on these securities are typically 20 to 3 0 years. Although these securities are issued as long-term securities, they are priced and traded as short-term instruments because of the liquidity provided through the tender feature.

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