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Business Segment Information - Schedule of External Net Sales by SBU Reporting Segment (Detail) (USD $)
In Thousands, unless otherwise specified
3 Months Ended 12 Months Ended
Dec. 31, 2013
Sep. 30, 2013
Jun. 30, 2013
Mar. 31, 2013
Dec. 31, 2012
Sep. 30, 2012
Jun. 30, 2012
Mar. 31, 2012
Dec. 31, 2013
Dec. 31, 2012
Dec. 31, 2011
Sales Information [Line Items]                      
Percent of Total Net Sales                 100.00% 100.00% 100.00%
Net sales $ 106,143 $ 92,738 $ 98,280 $ 103,373 $ 117,365 $ 107,857 $ 113,423 $ 108,936 $ 400,534 $ 447,581 $ 441,971
BioStim [Member]
                     
Sales Information [Line Items]                      
Percent of Total Net Sales                 37.00% 41.00% 43.00%
Net sales                 147,910 181,959 188,136
Biologics [Member]
                     
Sales Information [Line Items]                      
Percent of Total Net Sales                 13.00% 12.00% 10.00%
Net sales                 53,769 53,730 42,919
Spine Fixation [Member]
                     
Sales Information [Line Items]                      
Percent of Total Net Sales                 24.00% 22.00% 20.00%
Net sales                 95,470 99,883 91,395
Extremity Fixation [Member]
                     
Sales Information [Line Items]                      
Percent of Total Net Sales                 26.00% 25.00% 27.00%
Net sales                 $ 103,385 $ 112,009 $ 119,521