Goodwill, Long-lived Assets and Other Intangibles Goodwill, Long-lived Assets and Other Intangibles (Notes)	3 Months Ended
	Apr. 30, 2017
Goodwill and Intangible Assets Disclosure [Abstract]
Goodwill Impairment Loss and Other Charges	GOODWILL, LONG-LIVED ASSETS, AND OTHER INTANGIBLES Goodwill Management assesses goodwill for impairment annually during the fourth quarter and between annual tests whenever a triggering event indicates there may be an impairment. Impairment tests of goodwill are done at the reporting unit level. Management performed an assessment in fiscal 2018 first quarter and determined that no triggering events had occurred for any of the Company's reporting units. There were no goodwill impairment losses reported in the three-month period ended April 30, 2017. During the first quarter of fiscal 2017 which ended April 30, 2016, management implemented managerial and financial operations and reporting changes within Vista and Aerostar to further integrate Vista into the Aerostar Division. Integration actions included leadership re-alignment, including selling and business development functions; re-deployment of employees across the division; and consolidation of administrative functions, among other actions. Based on the changes made, the Company consolidated the two separate reporting units within the Aerostar Division that were in existence at that time, into one reporting unit for purposes of goodwill impairment review. As such, as of April 30, 2016, the Company had three reporting units: Engineered Films Division, Applied Technology Division, and Aerostar Division. The Company reviewed the quantitative and qualitative factors associated with the change in reporting units and determined there were no indicators of impairment at the time of the reporting unit change. There were no goodwill impairment losses reported in the three-month period ended April 30, 2016. Long-lived Assets and Other Intangibles The Company assesses the recoverability of long-lived assets, including definite-lived intangibles, equity investments, and property plant and equipment if events or changes in circumstances indicate that an asset might be impaired. For long-lived and intangible assets, the Company performs impairment reviews by asset groups. When performing long-lived asset testing, the fair values of assets are determined based on valuation techniques using the best available information. Such valuations are derived from valuation techniques in which one or more significant inputs are not observable (Level 3 fair value measures). An impairment loss is recognized when the carrying amount of an asset is below the estimated undiscounted cash flows used in determining the fair value of the asset. The Company determined that the investment in AgEagle, further described in Note 5 Acquisitions of and Investments in Businesses and Technologies, was impaired due to lower than expected cash flows. This impairment was determined to be other-than-temporary and an accelerated equity investment loss of $72 was reported in "Other (expense), net" in the Consolidated Statements of Income and Comprehensive Income for the three-month period ended April 30, 2017. The Company also determined the customer relationship intangible asset related to the Ag Eagle exclusive distribution agreement was fully impaired. The total impairment loss related to this intangible asset was $259 and was reported in "Long-lived asset impairment loss" in the Consolidated Statements of Income and Comprehensive Income for the three-month period ended April 30, 2017. There were no long-lived asset impairments or accelerated equity method losses reported in the three-month period ended April 30, 2016.

The entire disclosure for the aggregate amount of goodwill and a description of intangible assets, which may include (a) for amortizable intangible assets (also referred to as finite-lived intangible assets), the carrying amount, the amount of any significant residual value, and the weighted-average amortization period, (b) for intangible assets not subject to amortization (also referred to as indefinite-lived intangible assets), the carrying amount, and (c) the amount of research and development assets acquired and written off in the period, including the line item in the income statement in which the amounts written off are aggregated, if not readily apparent from the income statement. Also discloses (a) for amortizable intangibles assets in total and by major class, the gross carrying amount and accumulated amortization, the total amortization expense for the period, and the estimated aggregate amortization expense for each of the five succeeding fiscal years, (b) for intangible assets not subject to amortization the carrying amount in total and by major class, and (c) for goodwill, in total and for each reportable segment, the changes in the carrying amount of goodwill during the period (including the aggregate amount of goodwill acquired, the aggregate amount of impairment losses recognized, and the amount of goodwill included in the gain (loss) on disposal of a reporting unit). If any part of goodwill has not been allocated to a reportable segment, discloses the unallocated amount and the reasons for not allocating. For each impairment loss recognized related to an intangible asset (excluding goodwill), discloses: (a) a description of the impaired intangible asset and the facts and circumstances leading to the impairment, (b) the amount of the impairment loss and the method for determining fair value, (c) the caption in the income statement or the statement of activities in which the impairment loss is aggregated, and (d) the segment in which the impaired intangible asset is reported. For each goodwill impairment loss recognized, discloses: (a) a description of the facts and circumstances leading to the impairment, (b) the amount of the impairment loss and the method of determining the fair value of the associated reporting unit, and (c) if a recognized impairment loss is an estimate not finalized and the reasons why the estimate is not final. May also disclose the nature and amount of any significant adjustments made to a previous estimate of an impairment loss.