Employee Benefit Plans (Narrative) (Details) - USD ($) $ in Millions	6 Months Ended
Oct. 02, 2016	Sep. 27, 2015	Apr. 03, 2016
Deferred Compensation Arrangement with Individual, Postretirement Benefits [Line Items]
Cost recognized for matching contributions	$ 1.6	$ 1.5
United States Postretirement Benefit Plan of US Entity
Deferred Compensation Arrangement with Individual, Postretirement Benefits [Line Items]
Participant balances percent vested (percent)	100.00%
Deferred compensation plan obligations	$ 14.8		$ 13.1
Deferred compensation plan assets	15.3		14.6
United States Postretirement Benefit Plan of US Entity \| Fox Enterprises
Deferred Compensation Arrangement with Individual, Postretirement Benefits [Line Items]
Deferred compensation plan assets	0.4		0.4
Deferred compensation liability	0.9		0.9
International Employee Benefit Plan
Deferred Compensation Arrangement with Individual, Postretirement Benefits [Line Items]
Deferred compensation liability	$ 0.7		$ 0.8

Deferred Compensation, Participant Balances, Percent Vested

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- Definition

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+ References

No definition available.

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- Definition

Aggregate carrying value as of the balance sheet date of the liabilities for deferred compensation arrangements payable after one year (or the normal operating cycle, if longer). Represents currently earned compensation under cash arrangements (such as a profit-sharing plan, rabbi trust, and employee contract--excluding equity-based arrangements) that is not actually paid until a later date.

+ References

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- Definition

Aggregate carrying value as of the balance sheet date of the liabilities for all deferred compensation arrangements. Represents currently earned compensation under compensation arrangements that is not actually paid until a later date.

+ References

No definition available.

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- Definition

Carrying amount as of the balance sheet date of assets held under deferred compensation agreements.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.17)
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

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- Definition

The amount of the cost recognized during the period for defined contribution plans.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 715
-SubTopic 70
-Section 50
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=49170846&loc=d3e28014-114942

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