Commitments and Contingencies - Additional Information (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended				12 Months Ended		0 Months Ended	1 Months Ended	3 Months Ended	1 Months Ended	3 Months Ended	0 Months Ended	1 Months Ended	0 Months Ended
	Mar. 31, 2014	Mar. 31, 2013	Jun. 30, 2004 Scient'x [Member]	Jul. 31, 2005 Surgiview [Member]	Dec. 31, 2007 Eurosurgical [Member]	Dec. 31, 2006 Eurosurgical [Member]	Feb. 10, 2014 Eurosurgical [Member] Scient'x [Member]	May 31, 2008 Healthpoint Capital [Member] Scient'x [Member]	Mar. 31, 2014 Minimum [Member]	May 31, 2008 Minimum [Member] Healthpoint Capital [Member] Scient'x [Member]	Mar. 31, 2014 Maximum [Member]	Mar. 15, 2014 Orthotec LLC, Litigation Settlement [Member]	Mar. 31, 2014 Orthotec LLC, Litigation Settlement [Member]	Mar. 15, 2014 Orthotec LLC, Litigation Settlement [Member] Healthpoint Capital [Member]	Mar. 15, 2014 Beginning Fourth Quarter of 2014 [Member] Orthotec LLC, Litigation Settlement [Member]	Jan. 08, 2014 Healthpoint Capital [Member]	Apr. 10, 2014 Subsequent Event [Member] Orthotec LLC, Litigation Settlement [Member]
Loss Contingencies [Line Items]
Capital leases expire date	Jun. 30, 2017
Lease interest rate									6.60%		9.60%
Rent expense	$ 1.0	$ 1.0
Judgment assessed by court					30.0	9.0						49.0			31.5
Litigation Settlement, Expense													1.75				15.75
Business acquisition, percentage of interest acquired			33.10%	73.00%
Loss Contingency, Damages Sought, Value							47.9	39.0		70.0
Litigation settlement, quarterly installments, amount															1.1
Litigation settlement, contribution by entity involved, amount														5
Litigation settlement interest rate															7.00%
Litigation settlement interest, quarterly installments, amount												1.1
Attorneys' fees paid by insurance carriers																$ 5.25