Subsequent Events - Additional Information (Detail) (Forecast) In Thousands, unless otherwise specified	3 Months Ended	9 Months Ended
Jun. 27, 2015 USD ($)	Jun. 27, 2015 JPY (¥)	Dec. 27, 2014 USD ($)	Dec. 27, 2014 JPY (¥)	Jun. 27, 2015 USD ($)	Jun. 27, 2015 JPY (¥)
Subsequent Event [Line Items]
Cash proceeds from sale of business	$ 2,400	¥ 250,000	$ 15,600	¥ 1,600,000	$ 18,000	¥ 1,850,000

The cash inflow associated with the amount received from the sale of a portion of the company's business, for example a segment, division, branch or other business, during the period.

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Glossary Investing Activities

-URI http://asc.fasb.org/extlink&oid=6516133

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 230

-SubTopic 10

-Section 45

-Paragraph 12

-Subparagraph (b)

-URI http://asc.fasb.org/extlink&oid=31042434&loc=d3e3179-108585

Name:	us-gaap_ProceedsFromDivestitureOfBusinesses
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration