Acquisitions Carl Kliem S.A. (Details) - USD ($) $ in Millions	9 Months Ended	12 Months Ended
	Jun. 30, 2019	Sep. 30, 2019	Nov. 30, 2018
Business Acquisition [Line Items]
Business Combination, Bargain Purchase, Gain Recognized, Amount	$ 5.4
Carl Kliem S.A. [Member]
Business Acquisition [Line Items]
Business Combination, Consideration Transferred		$ 2.1
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Cash and Equivalents			$ 1.7
Business Combination, Acquired Receivables, Gross Contractual Amount			1.1
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Property, Plant, and Equipment			0.1
Business Combination, Acquired Receivable, Fair Value			0.1
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Liabilities, Accounts Payable			0.6
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Financial Liabilities			$ 0.2
Business Combination, Bargain Purchase, Gain Recognized, Amount		0.1
Business Combination, Pro Forma Information, Revenue of Acquiree since Acquisition Date, Actual		4.2
Business Combination, Pro Forma Information, Earnings or Loss of Acquiree since Acquisition Date, Actual		$ 2.3