The carrying amount as of the balance sheet date of the combined total of loss contingency liabilities.

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

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 5

-Paragraph 9, 10, 11, 12

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 450

-SubTopic 20

-Section 50

-Paragraph 1

-URI http://asc.fasb.org/extlink&oid=6952336&loc=d3e14326-108349

Name:	us-gaap_LossContingencyAccrualAtCarryingValue
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

Legal Proceedings (Details)	Dec. 31, 2011 USD ($)	Oct. 31, 2011 Project	Dec. 31, 2010 USD ($)	Apr. 19, 2010 Project	Mar. 31, 2010 USD ($)	Mar. 31, 2010 ILS
Legal Proceedings (Textual) [Abstract]
Amount of ex-parte judgment					$ 1,700,000	6,300,000
Infringements of number of patents held by Arris		2		4
Liabilities subject to compromise accounts payable and accrued liabilities	$ 0		$ 1,300,000