Segment Information (Schedule Of Revenue, Operating Income And Identifiable Assets By Segment) (Detail) (USD $) In Thousands, unless otherwise specified	3 Months Ended
Mar. 29, 2013	Mar. 30, 2012	Dec. 28, 2012
Segment Reporting Information [Line Items]
Segment revenue	$ 556,111	$ 502,267
Operating income (loss)	120,557	113,135
Accounts receivable	388,850		323,477
Inventories	260,596		240,529
Goodwill	1,837,937		1,815,699
Engineering And Construction [Member]
Segment Reporting Information [Line Items]
Segment revenue	266,871	248,885
Operating income (loss)	42,973	40,077
Accounts receivable	186,909		171,580
Inventories	167,070		148,241
Goodwill	949,887		958,103
Field Solutions [Member]
Segment Reporting Information [Line Items]
Segment revenue	147,481	147,499
Operating income (loss)	59,526	62,361
Accounts receivable	112,239		71,465
Inventories	45,458		44,738
Goodwill	67,769		68,684
Mobile Solutions [Member]
Segment Reporting Information [Line Items]
Segment revenue	110,164	78,383
Operating income (loss)	11,573	7,358
Accounts receivable	67,224		59,720
Inventories	30,328		30,598
Goodwill	795,105		763,386
Advanced Devices [Member]
Segment Reporting Information [Line Items]
Segment revenue	31,595	27,500
Operating income (loss)	6,485	3,339
Accounts receivable	22,478		20,712
Inventories	17,740		16,952
Goodwill	$ 25,176		$ 25,526

Carrying amount as of the balance sheet date, which is the cumulative amount paid and (if applicable) the fair value of any noncontrolling interest in the acquiree, adjusted for any amortization recognized prior to the adoption of any changes in generally accepted accounting principles (as applicable) and for any impairment charges, in excess of the fair value of net assets acquired in one or more business combination transactions.

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-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

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-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009.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

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-Name Accounting Standards Codification

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Reference 3: http://www.xbrl.org/2003/role/presentationRef

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-Name Accounting Standards Codification

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-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

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-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 5: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 141R

-Paragraph 34

-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 6: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 142

-Paragraph 43

-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 7: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 142

-Paragraph 45

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-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 8: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 141R

-Paragraph 72

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-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.

+ Details