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Corporate Investments and Funds Held For Clients (Tables) | 6 Months Ended
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Dec. 31, 2017
Corporate Investments And Funds Held For Clients [Abstract] |
Available-for-sale Securities | Corporate investments and funds held for clients at December 31, 2017 and June 30, 2017 were as follows:
| December 31, 2017
| Amortized Cost |  | Gross Unrealized Gains |  | Gross Unrealized Losses |  | Fair Market Value (A)
Type of issue: |  |  |  |  |  |  |
Money market securities, cash and other cash equivalents | $ | 13,859.8 |  |  | $ | — |  |  | $ | — |  |  | $ | 13,859.8 |
Available-for-sale securities: |  |  |  |  |  |  |
Corporate bonds | 9,435.9 |  |  | 57.7 |  |  | (39.7 | ) |  | 9,453.9 |
Asset-backed securities | 4,445.0 |  |  | 4.7 |  |  | (22.0 | ) |  | 4,427.7 |
U.S. government agency securities | 2,913.6 |  |  | 10.6 |  |  | (22.8 | ) |  | 2,901.4 |
U.S. Treasury securities | 2,481.4 |  |  | 1.0 |  |  | (38.6 | ) |  | 2,443.8 |
Canadian government obligations and Canadian government agency obligations | 1,148.3 |  |  | 0.9 |  |  | (20.1 | ) |  | 1,129.1 |
Canadian provincial bonds | 760.8 |  |  | 8.3 |  |  | (3.3 | ) |  | 765.8 |
Municipal bonds | 586.0 |  |  | 6.3 |  |  | (2.0 | ) |  | 590.3 |
Other securities | 661.2 |  |  | 5.0 |  |  | (2.7 | ) |  | 663.5 |
Total available-for-sale securities | 22,432.2 |  |  | 94.5 |  |  | (151.2 | ) |  | 22,375.5 |
Total corporate investments and funds held for clients | $ | 36,292.0 |  |  | $ | 94.5 |  |  | $ | (151.2 | ) |  | $ | 36,235.3 |
(A) Included within available-for-sale securities are corporate investments with fair values of $10.6 million and funds held for clients with fair values of $22,364.9 million. All available-for-sale securities were included in Level 2 of the fair value hierarchy.
| June 30, 2017
| Amortized Cost |  | Gross Unrealized Gains |  | Gross Unrealized Losses |  | Fair Market Value (B)
Type of issue: |  |  |  |  |  |  |  |  |  |  |
Money market securities, cash and other cash equivalents | $ | 8,181.6 |  |  | $ | — |  |  | $ | — |  |  | $ | 8,181.6 |
Available-for-sale securities: |  |  |  |  |  |  |  |  |  |  |
Corporate bonds | 9,325.3 |  |  | 98.8 |  |  | (22.0 | ) |  | 9,402.1 |
Asset-backed securities | 4,453.1 |  |  | 16.9 |  |  | (8.6 | ) |  | 4,461.4 |
U.S. government agency securities | 3,557.7 |  |  | 22.2 |  |  | (13.4 | ) |  | 3,566.5 |
U.S. Treasury securities | 1,585.9 |  |  | 2.6 |  |  | (14.3 | ) |  | 1,574.2 |
Canadian government obligations and Canadian government agency obligations | 1,053.6 |  |  | 2.9 |  |  | (11.4 | ) |  | 1,045.1 |
Canadian provincial bonds | 746.9 |  |  | 14.3 |  |  | (1.4 | ) |  | 759.8 |
Municipal bonds | 582.5 |  |  | 11.3 |  |  | (1.3 | ) |  | 592.5 |
Other securities | 493.6 |  |  | 7.3 |  |  | (1.4 | ) |  | 499.5 |
Total available-for-sale securities | 21,798.6 |  |  | 176.3 |  |  | (73.8 | ) |  | 21,901.1 |
Total corporate investments and funds held for clients | $ | 29,980.2 |  |  | $ | 176.3 |  |  | $ | (73.8 | ) |  | $ | 30,082.7 |
(B) Included within available-for-sale securities are corporate investments with fair values of $10.8 million and funds held for clients with fair values of $21,890.3 million. All available-for-sale securities were included in Level 2 of the fair value hierarchy.
Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value | The unrealized losses and fair values of available-for-sale securities that have been in an unrealized loss position for a period of less than and greater than 12 months as of December 31, 2017, are as follows:
| December 31, 2017
| Securities in Unrealized Loss Position Less Than 12 Months |  | Securities in Unrealized Loss Position Greater Than 12 Months |  | Total
| Gross Unrealized Losses |  | Fair Market Value |  | Gross Unrealized Losses |  | Fair Market Value |  | Gross Unrealized Losses |  | Fair Market Value
Corporate bonds | $ | (18.3 | ) |  | $ | 3,437.6 |  |  | $ | (21.4 | ) |  | $ | 1,186.2 |  |  | $ | (39.7 | ) |  | $ | 4,623.8 |
Asset-backed securities | (10.8 | ) |  | 2,463.5 |  |  | (11.2 | ) |  | 1,065.1 |  |  | (22.0 | ) |  | 3,528.6 |
U.S. government agency securities | (9.6 | ) |  | 1,390.0 |  |  | (13.2 | ) |  | 656.1 |  |  | (22.8 | ) |  | 2,046.1 |
U.S. Treasury securities | (17.1 | ) |  | 1,412.9 |  |  | (21.5 | ) |  | 982.1 |  |  | (38.6 | ) |  | 2,395.0 |
Canadian government obligations and Canadian government agency obligations | (20.1 | ) |  | 895.3 |  |  | — |  |  | — |  |  | (20.1 | ) |  | 895.3 |
Canadian provincial bonds | (2.7 | ) |  | 315.1 |  |  | (0.6 | ) |  | 55.4 |  |  | (3.3 | ) |  | 370.5 |
Municipal bonds | (1.4 | ) |  | 189.2 |  |  | (0.6 | ) |  | 17.8 |  |  | (2.0 | ) |  | 207.0 |
Other securities | (1.9 | ) |  | 269.2 |  |  | (0.8 | ) |  | 41.6 |  |  | (2.7 | ) |  | 310.8 |
| $ | (81.9 | ) |  | $ | 10,372.8 |  |  | $ | (69.3 | ) |  | $ | 4,004.3 |  |  | $ | (151.2 | ) |  | $ | 14,377.1 |
The unrealized losses and fair values of available-for-sale securities that have been in an unrealized loss position for a period of less than and greater than 12 months as of June 30, 2017, are as follows:
| June 30, 2017
| Securities in Unrealized Loss Position Less Than 12 Months |  | Securities in Unrealized Loss Position Greater Than 12 Months |  | Total
| Gross Unrealized Losses |  | Fair Market Value |  | Gross Unrealized Losses |  | Fair Market Value |  | Gross Unrealized Losses |  | Fair Market Value
Corporate bonds | $ | (22.0 | ) |  | $ | 2,619.9 |  |  | $ | — |  |  | $ | 7.4 |  |  | $ | (22.0 | ) |  | $ | 2,627.3 |
Asset-backed securities | (8.5 | ) |  | 1,916.1 |  |  | (0.1 | ) |  | 11.3 |  |  | (8.6 | ) |  | 1,927.4 |
U.S. government agency securities | (13.4 | ) |  | 1,935.3 |  |  | — |  |  | — |  |  | (13.4 | ) |  | 1,935.3 |
U.S. Treasury securities | (14.3 | ) |  | 1,317.8 |  |  | — |  |  | 1.0 |  |  | (14.3 | ) |  | 1,318.8 |
Canadian government obligations and Canadian government agency obligations | (11.4 | ) |  | 699.6 |  |  | — |  |  | — |  |  | (11.4 | ) |  | 699.6 |
Canadian provincial bonds | (1.4 | ) |  | 179.8 |  |  | — |  |  | — |  |  | (1.4 | ) |  | 179.8 |
Municipal bonds | (1.2 | ) |  | 98.8 |  |  | (0.1 | ) |  | 1.2 |  |  | (1.3 | ) |  | 100.0 |
Other securities | (1.3 | ) |  | 148.0 |  |  | (0.1 | ) |  | 8.9 |  |  | (1.4 | ) |  | 156.9 |
| $ | (73.5 | ) |  | $ | 8,915.3 |  |  | $ | (0.3 | ) |  | $ | 29.8 |  |  | $ | (73.8 | ) |  | $ | 8,945.1 |
Classification Of Corporate Investments On The Consolidated Balance Sheets | Classification of corporate investments on the Consolidated Balance Sheets is as follows:
|  | December 31, |  | June 30,
|  | 2017 |  | 2017
Corporate investments: |  |  |  |
Cash and cash equivalents |  | $ | 1,773.4 |  |  | $ | 2,780.4 |
Short-term marketable securities (a) |  | 3.2 |  |  | 3.2 |
Long-term marketable securities (b) |  | 7.4 |  |  | 7.6 |
Total corporate investments |  | $ | 1,784.0 |  |  | $ | 2,791.2 |
Schedule Of Investment Of Funds Held For Clients | Funds held for clients have been invested in the following categories:
|  | December 31, |  | June 30,
|  | 2017 |  | 2017
Funds held for clients: |  |  |  |
Restricted cash and cash equivalents held to satisfy client funds obligations |  | $ | 12,086.4 |  |  | $ | 5,401.2 |
Restricted short-term marketable securities held to satisfy client funds obligations |  | 2,285.3 |  |  | 2,918.5 |
Restricted long-term marketable securities held to satisfy client funds obligations |  | 20,079.6 |  |  | 18,971.8 |
Total funds held for clients |  | $ | 34,451.3 |  |  | $ | 27,291.5 |
Expected Maturities Of Available-For-Sale Securities | Expected maturities of available-for-sale securities at December 31, 2017 are as follows:
One year or less | $ | 2,288.5 |
One year to two years | 4,112.2 |
Two years to three years | 5,290.8 |
Three years to four years | 4,556.3 |
After four years | 6,127.7 |
Total available-for-sale securities | $ | 22,375.5 |

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- Definition Tabular disclosure of available-for-sale securities which includes, but is not limited to, changes in the cost basis and fair value, fair value and gross unrealized gain (loss), fair values by type of security, contractual maturity and classification, amortized cost basis, contracts to acquire securities to be accounted for as available-for-sale, debt maturities, transfers to trading, change in net unrealized holding gain (loss) net of tax, continuous unrealized loss position fair value, aggregate losses qualitative disclosures, other than temporary impairment (OTTI) losses or other disclosures related to available for sale securities. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 320 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6957658&loc=d3e62557-112803 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 7 -URI http://asc.fasb.org/extlink&oid=73527792&loc=d3e27337-111563 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=73527792&loc=d3e27198-111563 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 320 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=6957658&loc=d3e62586-112803 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=73527792&loc=d3e27161-111563 Reference 6: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 9 -URI http://asc.fasb.org/extlink&oid=73527792&loc=d3e27357-111563 Reference 7: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 6 -URI http://asc.fasb.org/extlink&oid=73527792&loc=d3e27290-111563 + Details
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