2.4.0.8155 - Disclosure - Schedule of Estimate Amortization Expense over Each of the Next Five Years (Detail)truefalseIn Thousands, unless otherwise specifiedfalse1false USDfalsefalse$eol_PE715633--1310-Q0007_STD_0_20130630_0http://www.sec.gov/CIK0001369786instant2013-06-30T00:00:000001-01-01T00:00:00iso4217_USDStandardhttp://www.xbrl.org/2003/iso4217USDiso42170USDUSD$1true 3us-gaap_FiniteLivedIntangibleAssetsLineItemsus-gaap_truenadurationfalsefalsefalsefalsefalsefalsefalsefalseterseLabel1falsefalsefalse00falsefalsefalsexbrli:stringItemTypestringfalse0Finite-Lived Intangible Assets [Line Items]2false 4us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseNextRollingTwelveMonthsus-gaap_truedebitinstantfalsefalsefalsefalsefalsefalsefalsefalseterseLabel1truefalsefalse19830001983USD$falsetruefalsexbrli:monetaryItemTypemonetaryAmount of amortization expense expected to be recognized in the next rolling twelve months following the latest balance sheet presented for assets, excluding financial assets and goodwill, lacking physical substance with a finite life.No definition available.false2For the year ending, June 30, 20143false 4us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseRollingYearTwous-gaap_truedebitinstantfalsefalsefalsefalsefalsefalsefalsefalseterseLabel1truefalsefalse265000265falsefalsefalsexbrli:monetaryItemTypemonetaryAmount of amortization expense expected to be recognized in the second rolling twelve months following the latest balance sheet presented for assets, excluding financial assets and goodwill, lacking physical substance with a finite life.No definition available.false2For the year ending, June 30, 20154false 4us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseRollingYearThreeus-gaap_truedebitinstantfalsefalsefalsefalsefalsefalsefalsefalseterseLabel1truefalsefalse145000145falsefalsefalsexbrli:monetaryItemTypemonetaryAmount of amortization expense expected to be recognized in the third rolling twelve months following the latest balance sheet presented for assets, excluding financial assets and goodwill, lacking physical substance with a finite life.No definition available.false2For the year ending, June 30, 20165false 4us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseRollingYearFourus-gaap_truedebitinstantfalsefalsefalsefalsefalsefalsefalsefalseterseLabel1truefalsefalse9900099falsefalsefalsexbrli:monetaryItemTypemonetaryAmount of amortization expense expected to be recognized in the fourth rolling twelve months following the latest balance sheet presented for assets, excluding financial assets and goodwill, lacking physical substance with a finite life.No definition available.false2For the year ending, June 30, 20176false 4us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseRollingYearFiveus-gaap_truedebitinstantfalsefalsefalsefalsefalsefalsefalsefalseterseLabel1truefalsefalse9900099USD$falsetruefalsexbrli:monetaryItemTypemonetaryAmount of amortization expense expected to be recognized in the fifth rolling twelve months following the latest balance sheet presented for assets, excluding financial assets and goodwill, lacking physical substance with a finite life.No definition available.false2For the year ending, June 30, 2018falseSchedule of Estimate Amortization Expense over Each of the Next Five Years (Detail) (USD $)ThousandsUnKnownUnKnownUnKnowntruefalsefalseSheethttp://www.sagentpharma.com/taxonomy/role/DisclosureScheduleOfEstimateAmortizationExpenseOverEachOfTheNextFiveYears16