Supplemental Financial Information (Details 3) (Successor [Member], USD $)	9 Months Ended
Jun. 29, 2012	Sep. 30, 2011
Successor [Member]
Black-Scholes-Merton valuation model using inputs
Exercise price	$ 16.74	$ 16.74
Fair market value of Mindspeed stock	$ 2.46	$ 5.20
Warrants, Expected life (years)	1 year	1 year 9 months
Expected volatility	59.00%	64.00%
Risk-free rate	0.21%	0.22%
Dividend yield

Period the instrument, asset or liability is expected to be outstanding, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 820

-SubTopic 10

-Section 50

-Paragraph 2

-Subparagraph (e)

-URI http://asc.fasb.org/extlink&oid=7578670&loc=d3e19207-110258

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