Amount after accumulated impairment loss of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

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Goodwill - Schedule of Changes in Net Carrying Amount of Goodwill (Detail) (USD $) In Thousands, unless otherwise specified	6 Months Ended		12 Months Ended
	Dec. 31, 2013	Jun. 30, 2013	Dec. 31, 2013	Dec. 31, 2014
Goodwill [Line Items]
Beginning balance	$ 72,758us-gaap_Goodwill	$ 74,388us-gaap_Goodwill	$ 74,388us-gaap_Goodwill	$ 53,565us-gaap_Goodwill
Foreign currency		(1,630)us-gaap_GoodwillTranslationAdjustments
Impairment	(19,193)us-gaap_GoodwillImpairmentLoss		(19,193)us-gaap_GoodwillImpairmentLoss
Ending balance	53,565us-gaap_Goodwill	72,758us-gaap_Goodwill	53,565us-gaap_Goodwill	53,565us-gaap_Goodwill
Spine [Member]
Goodwill [Line Items]
Beginning balance	41,401	41,564	41,564
Foreign currency		(163)
Reallocation	(41,401)
Ending balance		41,401
Orthopedics [Member]
Goodwill [Line Items]
Beginning balance	31,357	32,824	32,824
Foreign currency		(1,467)
Reallocation	(31,357)
Ending balance		31,357
BioStim [Member]
Goodwill [Line Items]
Beginning balance				42,678
Reallocation	42,678
Ending balance	42,678		42,678	42,678
Biologics [Member]
Goodwill [Line Items]
Beginning balance				10,887
Reallocation	10,887
Ending balance	10,887		10,887	10,887
Extremity Fixation [Member]
Goodwill [Line Items]
Reallocation	9,825
Impairment	(9,825)
Spine Fixation [Member]
Goodwill [Line Items]
Reallocation	9,368
Impairment	$ (9,368)