Inventories	9 Months Ended
Oct. 31, 2016
Inventories
Inventories	Note 4.Inventories Inventories, made up of finished goods, consist primarily of aerospace fasteners and consumables. The Company values inventories at the lower of cost or market, using first‑in, first‑out or weighted average cost method. The Company reviews inventory quantities on hand and records a provision for excess and obsolete inventory based primarily on historical demand, estimated product demand to support contractual supply agreements with its customers and the age of the inventory, among other factors. Demand for the Company’s products can fluctuate from period to period depending on customer activity. In accordance with industry practice, inventories include amounts relating to long-term contracts with long production cycles, some of which are not expected to be realized within one year. In addition, the Company supports a substantial portion of the global fleet of aircraft in service, and in its capacity as a stocking distributor will acquire and hold inventories for aircraft maintenance at periodic intervals as mandated by the Federal Aviation Administration (“FAA”) or similar regulatory agencies. Based on historical experience, the support of the aftermarket activities with products such as those which the Company sells will necessitate holding inventory in excess of the amount required to support new build production activity contracts. Obsolescence has historically been immaterial for the Company due to the long life of an aircraft and nature of the products sold by the Company. Inventory with a limited shelf life is continually monitored and reserved for in advance of expiration. The annual provision for inventory with limited shelf life has historically been immaterial. Reserves for excess and obsolete inventory were approximately $47.8 and $40.4 as of October 31, 2016 and January 31, 2016, respectively.

Note 4.Inventories

Inventories, made up of finished goods, consist primarily of aerospace fasteners and consumables. The Company values inventories at the lower of cost or market, using first‑in, first‑out or weighted average cost method. The Company reviews inventory quantities on hand and records a provision for excess and obsolete inventory based primarily on historical demand, estimated product demand to support contractual supply agreements with its customers and the age of the inventory, among other factors. Demand for the Company’s products can fluctuate from period to period depending on customer activity. In accordance with industry practice, inventories include amounts relating to long-term contracts with long production cycles, some of which are not expected to be realized within one year. In addition, the Company supports a substantial portion of the global fleet of aircraft in service, and in its capacity as a stocking distributor will acquire and hold inventories for aircraft maintenance at periodic intervals as mandated by the Federal Aviation Administration (“FAA”) or similar regulatory agencies. Based on historical experience, the support of the aftermarket activities with products such as those which the Company sells will necessitate holding inventory in excess of the amount required to support new build production activity contracts. Obsolescence has historically been immaterial for the Company due to the long life of an aircraft and nature of the products sold by the Company. Inventory with a limited shelf life is continually monitored and reserved for in advance of expiration. The annual provision for inventory with limited shelf life has historically been immaterial. Reserves for excess and obsolete inventory were approximately $47.8 and $40.4 as of October 31, 2016 and January 31, 2016, respectively.