Business Combinations (Schedule Of Pro Forma Financial Information) (Details) (USD $) In Thousands, except Per Share data, unless otherwise specified	12 Months Ended
Dec. 28, 2012
Business Acquisition, Pro Forma Information, Nonrecurring Adjustment [Line Items]
Total revenues	$ 2,132,918
Net income	193,837
Net income attributable to Trimble Navigation Ltd	$ 195,181
Basic earnings per share	$ 1.55
Diluted earnings per share	$ 1.52

Business acquisition, pro forma net income (loss) attributable to parent.

No definition available.

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- Definition

The pro forma basic net income per share for a period as if the business combination or combinations had been completed at the beginning of a period.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 805

-SubTopic 10

-Section 50

-Paragraph 2

-Subparagraph (h)(2)-(3)

-URI http://asc.fasb.org/extlink&oid=25497992&loc=d3e1392-128463

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- Definition

The pro forma diluted net income per share for a period as if the business combination or combinations had been completed at the beginning of a period.

+ References

+ Details

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- Definition

The pro forma net Income or Loss for the period as if the business combination or combinations had been completed at the beginning of a period.

+ References

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- Definition

The pro forma revenue for a period as if the business combination or combinations had been completed at the beginning of the period.

+ References

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