Acquisition (Details) - Systron Donner Inertial, Inc. - USD ($) shares in Thousands, $ in Millions		3 Months Ended	6 Months Ended
Jun. 07, 2019	Mar. 31, 2020	Mar. 31, 2020
Business Acquisition [Line Items]
Total purchase price	$ 25.0
Payments to acquire business	$ 22.0
Net revenue from acquisition date		$ 6.3	$ 14.4
Net income (loss) from acquisition date		$ 0.9	$ 0.8
Common Stock
Business Acquisition [Line Items]
Common stock issues (shares)	811,000
Common stock issued	$ 3.0

Number of shares of equity interests issued or issuable to acquire entity.

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Amount of consideration transferred, consisting of acquisition-date fair value of assets transferred by the acquirer, liabilities incurred by the acquirer, and equity interest issued by the acquirer.

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The cash outflow associated with the acquisition of business during the period. The cash portion only of the acquisition price.

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