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Contingencies - Additional Information (Detail) (USD $)
 0 Months Ended 12 Months Ended 12 Months Ended 1 Months Ended
Oct. 29, 2012
Jun. 06, 2012
May 24, 2012
Dec. 31, 2013
Dec. 31, 2012
Jul. 31, 2012
Dec. 31, 2011
Dec. 31, 2013
Litigation related to Promeca [Member]
Jul. 31, 2012
Litigation Related to Breg [Member]
Commitment And Contingencies [Line Items]                  
Imputed Interest settlement against the charge               $ 5,200,000  
Amount of fine 7,800,000             2,200,000  
Deferred prosecution agreement term       3 years          
Amount approved to be paid under the agreement   34,200,000              
Interest rate on settlement amount approved to be paid under the agreement (as a percent)       3.00%          
Settlement agreement description       The Company agreed to pay $34.2 million (plus interest at a rate of 3% from May 5, 2011 through the day before payment was made)          
Mandatory special assessment 400                
Amount paid to settlement of claims 32,000,000                
Amount used from escrow fund through acquisition of Blackstone for legal settlement 32,000,000                
Charges accrued in connection with litigation     4,200,000            
Judgments and settlement costs       6,700,000 6,800,000   1,800,000    
Compensatory damages to plaintiff                 2,100,000
Exemplary damages                 7,000,000
Discontinued operations for compensatory damages and exemplary damages           $ 4,200,000