Basis of Presentation - Schedule of Inventory (Details) - USD ($) $ in Thousands	Aug. 31, 2019	May 31, 2019
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Raw materials	$ 16,541	$ 17,812
Work in process	25,618	28,820
Finished goods	294,131	287,957
Inventories, net	$ 336,290	$ 334,589

Carrying amount, net of valuation reserves and adjustments, as of the balance sheet date of merchandise or goods held by the company that are readily available for sale.

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Amount after valuation and LIFO reserves of inventory expected to be sold, or consumed within one year or operating cycle, if longer.

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Carrying amount, net of valuation reserves and adjustments, as of the balance sheet date of unprocessed items to be consumed in the manufacturing or production process.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 330
-SubTopic 10
-Section S99
-Paragraph 2
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Carrying amount, net of reserves and adjustments, as of the balance sheet date of merchandise or goods which are partially completed. This inventory is generally comprised of raw materials, labor and factory overhead costs, which require further materials, labor and overhead to be converted into finished goods, and which generally require the use of estimates to determine percentage complete and pricing.

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-SubTopic 10
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