v2.4.1.9
Inventory (Details) (USD $)
Mar. 31, 2015
Dec. 31, 2014
Inventory [Abstract]    
Raw materials $ 12,077,000us-gaap_InventoryRawMaterialsNetOfReserves $ 10,617,000us-gaap_InventoryRawMaterialsNetOfReserves
Finished goods 59,983,000us-gaap_InventoryFinishedGoodsNetOfReserves 58,860,000us-gaap_InventoryFinishedGoodsNetOfReserves
Inventory 72,060,000us-gaap_InventoryNet 69,477,000us-gaap_InventoryNet
Finished goods held by distributors 1,000,000ftnt_InventoryFinishedGoodsNetofReservesHeldbyDistributors 1,200,000ftnt_InventoryFinishedGoodsNetofReservesHeldbyDistributors
Materials at contract manufacturers $ 4,600,000ftnt_InventoryRawMaterialsNetofReservesatContractManufacturers $ 4,800,000ftnt_InventoryRawMaterialsNetofReservesatContractManufacturers