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Segment Information (Purchase Accounting and Related Adjustments) (Details) - Corporate and reconciling items - USD ($) $ in Millions		3 Months Ended
		Jun. 30, 2017	Jun. 30, 2016
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Purchase accounting and related adjustments	[1]	$ 47.0	$ 6.4
Direct operating
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Purchase accounting and related adjustments		15.9	4.3
General and administrative expense
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Purchase accounting and related adjustments		1.2	1.3
Depreciation and amortization expense
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Purchase accounting and related adjustments		$ 29.9	$ 0.8
[1] Purchase accounting and related adjustments represent the amortization of non-cash fair value adjustments to the assets and liabilities acquired in the acquisition of Starz and Pilgrim Media Group. The following sets forth the amounts included in each line item in the financial statements:

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The amortization of non-cash fair value adjustments to the assets and liabilities acquired in the acquisition of businesses.

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