Represents the expense recognized during the period arising from equity-based compensation arrangements (for example, shares of stock, unit, stock options or other equity instruments) with employees, directors and certain consultants qualifying for treatment as employees.

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Securities (including those issuable pursuant to contingent stock agreements) that could potentially dilute basic earnings per share (EPS) or earnings per unit (EPU) in the future that were not included in the computation of diluted EPS or EPU because to do so would increase EPS or EPU amounts or decrease loss per share or unit amounts for the period presented.

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-Glossary Antidilution

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-Glossary Diluted Earnings Per Share

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-Glossary Contingent Stock Agreement

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Unrecognized cost of unvested share-based compensation awards.

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Number of options outstanding, including both vested and non-vested options.

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An excess of the fair value of the modified award over the fair value of the award immediately before the modification.

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NET INCOME PER SHARE - Narrative (Detail) - USD ($) shares in Millions, $ in Millions		3 Months Ended		9 Months Ended
	Jul. 02, 2015	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Stock options, shares outstanding (in shares)		1.1	1.4	1.1	1.4
Stock Compensation Plan
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Shares excluded from computation as their effect would be anti-dilutive		0.5	0.2	0.6	0.2
SeaSpine Inc. \| Spinoff
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Incremental increase in stock based award expense after spinoff	$ 4.4
Allocated Share-based Compensation Expense		$ 3.0
Total unrecognized compensation costs		$ 1.4		$ 1.4