Annual report pursuant to Section 13 and 15(d)

INCOME TAXES - Schedule of Components of Deferred Tax Assets and Liabilities (Details)

v2.4.1.9
INCOME TAXES - Schedule of Components of Deferred Tax Assets and Liabilities (Details) (USD $)
In Thousands, unless otherwise specified
Mar. 31, 2015
Mar. 31, 2014
Deferred tax assets:    
Inventory valuation method $ 1,588us-gaap_DeferredTaxAssetsInventory $ 1,742us-gaap_DeferredTaxAssetsInventory
Accrued warranty expense 1,624us-gaap_DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsWarrantyReserves 2,336us-gaap_DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsWarrantyReserves
Distribution reserves 4,283qtm_DeferredTaxAssetsTaxDistributionReserves 1,950qtm_DeferredTaxAssetsTaxDistributionReserves
Loss carryforwards 75,262us-gaap_DeferredTaxAssetsOperatingLossCarryforwards 81,012us-gaap_DeferredTaxAssetsOperatingLossCarryforwards
Tax credits 185,578us-gaap_DeferredTaxAssetsOperatingLossCarryforwardsForeign 191,372us-gaap_DeferredTaxAssetsOperatingLossCarryforwardsForeign
Restructuring charge accruals 1,866us-gaap_DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsRestructuringCharges 3,191us-gaap_DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsRestructuringCharges
Other accruals and reserves not currently deductible for tax purposes 34,490us-gaap_DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsOther 32,465us-gaap_DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsOther
Deferred tax asset, gross 304,691us-gaap_DeferredTaxAssetsGross 314,068us-gaap_DeferredTaxAssetsGross
Less valuation allowance (252,475)us-gaap_DeferredTaxAssetsValuationAllowance (261,337)us-gaap_DeferredTaxAssetsValuationAllowance
Deferred tax asset 52,216us-gaap_DeferredTaxAssetsNet 52,731us-gaap_DeferredTaxAssetsNet
Deferred tax liabilities:    
Depreciation (4,302)us-gaap_DeferredTaxLiabilitiesPropertyPlantAndEquipment (3,570)us-gaap_DeferredTaxLiabilitiesPropertyPlantAndEquipment
Acquired intangibles (4,920)us-gaap_DeferredTaxLiabilitiesGoodwillAndIntangibleAssetsIntangibleAssets (2,794)us-gaap_DeferredTaxLiabilitiesGoodwillAndIntangibleAssetsIntangibleAssets
Tax on unremitted foreign earnings (15,968)us-gaap_DeferredTaxLiabilitiesUndistributedForeignEarnings (17,245)us-gaap_DeferredTaxLiabilitiesUndistributedForeignEarnings
Other (26,093)us-gaap_DeferredTaxLiabilitiesOther (28,330)us-gaap_DeferredTaxLiabilitiesOther
Deferred tax liability (51,283)us-gaap_DeferredTaxLiabilities (51,939)us-gaap_DeferredTaxLiabilities
Net deferred tax asset $ 933us-gaap_DeferredTaxAssetsLiabilitiesNet $ 792us-gaap_DeferredTaxAssetsLiabilitiesNet