Condensed Statement of Operations Information (Detail) (USD $) In Thousands, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2013	Jun. 30, 2012	Jun. 30, 2013	Jun. 30, 2012
Sagent Agila LLC
Schedule of Equity Method Investments [Line Items]
Net revenues	$ 5,083	$ 6,066	$ 10,712	$ 11,755
Gross profit	1,279	2,299	2,723	3,745
Net (income) loss	1,360	2,087	2,444	3,343
KSCP
Schedule of Equity Method Investments [Line Items]
Net (income) loss	$ (1,327)	$ (1,854)	$ (2,805)	$ (3,307)