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Discontinued Operation - Additional Information (Detail) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2009	Jun. 12, 2009
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Effective tax rate for the discontinued operations	105.00%
Federal statutory income tax rate	35.00%
Empi Therapy Solutions (ETS)
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Proceed from sale of discontinued operation		$ 21.8
Pre-tax gain on disposal of discontinued operations	6.6
Goodwill associated with discontinued operations	$ 12.0

Amount of gain (loss), before tax expense or benefit and not previously recognized, resulting from the sale of a business component.

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- Definition

The domestic federal statutory tax rate applicable under enacted tax laws to the Company's pretax income from continuing operations for the period. The "statutory" tax rate is the regular tax rate if there are alternative tax systems.

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