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Commitments and Contingencies (Narrative) (Details) $ in Millions | 1 Months Ended | 3 Months Ended | 12 Months Ended |
--- | --- | --- | --- | ---
Aug. 30, 2016 | Mar. 16, 2017 plaintiff | Mar. 31, 2017 USD ($) | Mar. 31, 2016 USD ($) | Mar. 31, 2015 USD ($) | Dec. 08, 2016 USD ($)
Other Commitments [Line Items] |  |  |  |  |  |
Dissenting shareholders' liability |  |  | $ 812.9 | $ 0.0 |  |
Redeemable noncontrolling interest |  |  | 93.8 | 90.5 | $ 0.0 |
Operating leases, rental expense |  |  | $ 15.6 | 14.2 | 13.5 |
Multiemployer benefit plans, funded status |  |  | At least 80 percent |  |  |
Multiemployer benefit plans, period contributions |  |  | $ 35.5 | $ 38.0 | $ 20.5 |
Contingencies, putative class action complaints filed, number | 7 |  |  |  |  |
Petitions for appraisal filed | plaintiff |  | 5 |  |  |  |
Starz | Starz Dissenting Shareholders |  |  |  |  |  |
Other Commitments [Line Items] |  |  |  |  |  |
Dissenting shareholders' liability |  |  | $ 812.9 |  |  | $ 797.3

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- Definition Amount of contributions made to multiemployer plans by the employer. A multiemployer plan is a pension or postretirement benefit plan to which two or more unrelated employers contribute where assets contributed by one participating employer may be used to provide benefits to employees of other participating employers. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 80 -Section 50 -Paragraph 11 -URI http://asc.fasb.org/extlink&oid=65877416&loc=SL14450702-114947 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 80 -Section 50 -Paragraph 9 -URI http://asc.fasb.org/extlink&oid=65877416&loc=SL14450691-114947 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 80 -Section 50 -Paragraph 5 -Subparagraph (e)(1) -URI http://asc.fasb.org/extlink&oid=65877416&loc=SL14450657-114947 + Details
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