Amount of expenses associated with exit or disposal activities pursuant to an authorized plan. Excludes expenses related to a discontinued operation or an asset retirement obligation.

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Restructuring Reserve - Additional Information (Details) - USD ($) $ in Thousands	1 Months Ended	3 Months Ended	6 Months Ended
	Apr. 30, 2018	Nov. 30, 2018	Aug. 31, 2018
Restructuring Reserve [Line Items]
Restructuring Charges			$ 1,178
St Louis
Restructuring Reserve [Line Items]
Restructuring Charges	$ 1,200	$ 200