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Investments (Summarized Statement Of Income) (Details) - USD ($) $ in Millions | 3 Months Ended | 6 Months Ended
--- | --- | ---
Sep. 30, 2018 | Sep. 30, 2017 | Sep. 30, 2018 | Sep. 30, 2017
Reconciliation of net income (loss) reported by investee to equity interest income (loss): |  |  |  |
Total equity interest income (loss) recorded | $ (11.7) | $ (12.7) | $ (17.8) | $ (21.0)
Other |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |
Revenues | 30.7 | 49.3 | 53.4 | 88.1
Expenses: |  |  |  |
Gross profit | 15.3 | 9.3 | 19.6 | 18.0
Reconciliation of net income (loss) reported by investee to equity interest income (loss): |  |  |  |
Net income (loss) | (34.9) | (32.5) | (55.3) | (62.4)
Total equity interest income (loss) recorded | (11.4) | (13.2) | (16.7) | (22.5)
Pop |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |
Revenues | 25.9 | 28.3 | 51.5 | 53.0
Expenses: |  |  |  |
Cost of services | 12.4 | 13.8 | 25.5 | 30.8
Selling, marketing and general and administrative expenses | 11.5 | 11.1 | 23.4 | 23.2
Depreciation and amortization | 2.0 | 2.0 | 4.0 | 4.0
Operating income (loss) | 0.0 | 1.4 | (1.4) | (5.0)
Interest expense, net | 0.5 | 0.4 | 0.9 | 0.5
Accretion of redeemable preferred stock units | 22.6 | 19.3 | 44.4 | 37.9
Total interest expense, net | 23.1 | 19.7 | 45.3 | 38.4
Reconciliation of net income (loss) reported by investee to equity interest income (loss): |  |  |  |
Net income (loss) | $ (23.1) | $ (18.3) | $ (46.7) | $ (43.4)
Ownership interest in investee | 50.00% | 50.00% | 50.00% | 50.00%
The Company's share of net income (loss) | $ (11.6) | $ (9.2) | $ (23.4) | $ (21.7)
Accretion of dividend and interest income of redeemable preferred stock units | 11.3 | 9.7 | 22.2 | 19.0
Eliminations of the Company's share of profits on licensing sales to investee | (0.1) | (0.1) | (0.2) | (0.2)
Realization of the Company's share of profits on licensing sales to investee | 0.1 | 0.1 | 0.3 | 0.4
Total equity interest income (loss) recorded | $ (0.3) | $ 0.5 | $ (1.1) | $ (2.5)

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