The net result for the period of deducting operating expenses from operating revenues.

No definition available.

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- Definition

Aggregate revenue recognized during the period (derived from goods sold, services rendered, insurance premiums, or other activities that constitute an entity's earning process). For financial services companies, also includes investment and interest income, and sales and trading gains.

+ References

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

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Article 5

-Section 03

-Paragraph 1

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 225

-SubTopic 10

-Section S99

-Paragraph 2

-Subparagraph (SX 210.5-03.1)

-URI http://asc.fasb.org/extlink&oid=6880815&loc=d3e20235-122688

+ Details

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- Definition

Amount of revenue from transactions with other operating segments of the same entity.

+ References

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

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 131

-Paragraph 27

-Subparagraph b

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009.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

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Operating Segments and Related Information (Details 2) (USD $) In Thousands, unless otherwise specified	3 Months Ended								12 Months Ended
	Dec. 31, 2012	Sep. 30, 2012	Jun. 30, 2012	Mar. 31, 2012	Dec. 31, 2011	Sep. 30, 2011	Jun. 30, 2011	Mar. 31, 2011	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Segment Reporting, Revenue Reconciling Item [Line Items]
Revenue - External Customers	$ 386,385	$ 332,230	$ 338,291	$ 348,452	$ 405,212	$ 371,327	$ 391,554	$ 375,969	$ 1,405,358	$ 1,544,062	$ 1,388,437
Revenue - Intersegments									0	0	0
Earnings (loss) from operations									303,330	313,195	360,311
Thermal Vision and Measurement
Segment Reporting, Revenue Reconciling Item [Line Items]
Revenue - External Customers									628,019	660,256	574,852
Revenue - Intersegments									15,204	18,553	16,670
Earnings (loss) from operations									171,280	194,674	163,664
Raymarine
Segment Reporting, Revenue Reconciling Item [Line Items]
Revenue - External Customers									158,183	171,489	104,089
Revenue - Intersegments									7	7	0
Earnings (loss) from operations									11,173	11,855	8,284
Surveillance
Segment Reporting, Revenue Reconciling Item [Line Items]
Revenue - External Customers									486,355	577,552	671,250
Revenue - Intersegments									23,013	32,266	28,284
Earnings (loss) from operations									160,219	208,510	256,208
Detection
Segment Reporting, Revenue Reconciling Item [Line Items]
Revenue - External Customers									63,312	79,918	23,554
Revenue - Intersegments									4,233	3,394	0
Earnings (loss) from operations									1,089	(5,568)	(2,541)
Integrated Systems
Segment Reporting, Revenue Reconciling Item [Line Items]
Revenue - External Customers									69,489	54,847	14,692
Revenue - Intersegments									1,537	6,639	0
Earnings (loss) from operations									5,168	1,659	32
Eliminations
Segment Reporting, Revenue Reconciling Item [Line Items]
Revenue - Intersegments									43,994	60,859	44,954
Other
Segment Reporting, Revenue Reconciling Item [Line Items]
Earnings (loss) from operations									$ (45,599)	$ (97,935)	$ (65,336)