The estimated maximum amount of possible loss from the contingency.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 450
-SubTopic 20
-Section 50
-Paragraph 4
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=25496072&loc=d3e14435-108349

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 450
-SubTopic 20
-Section 50
-Paragraph 9
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=25496072&loc=d3e14557-108349

Name:	us-gaap_LossContingencyRangeOfPossibleLossMaximum
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

Legal Proceedings - Additional Information (Detail) - USD ($) $ in Millions	Apr. 01, 2016	Dec. 23, 2014	Oct. 14, 2014	Jan. 23, 2012
Seagate Technology LLC [Member]
Loss Contingencies [Line Items]
Disputed Post Award Interest		$ 29.0
Judicial Ruling [Member] \| Seagate Technology LLC [Member]
Loss Contingencies [Line Items]
Amount of total award issued by the arbitrator				$ 630.4
Final Arbitration Award			$ 773.4
Unfavorable Regulatory Action [Member] \| ZPÜ [Member]
Loss Contingencies [Line Items]
Loss Contingency, Range of Possible Loss, Maximum	$ 119.0