Acquisition - Narrative (Details) € in Millions					1 Months Ended	3 Months Ended		6 Months Ended
	Dec. 01, 2020 USD ($)	Oct. 01, 2020 USD ($)	Jan. 31, 2020 USD ($)	Jan. 02, 2020 EUR (€)	Feb. 05, 2021 USD ($)	Mar. 31, 2021 USD ($)	Mar. 31, 2020 USD ($)	Mar. 31, 2022 USD ($)	Mar. 31, 2021 USD ($)	Mar. 31, 2020 USD ($)
Business Acquisition [Line Items]
Payments to acquire business									$ 67,100,000	$ 4,500,000
Earnout payment period (in years)			3 years						3 years
Earnings related to transition service agreements						$ 0	$ (100,000)		$ 0	(400,000)
Loss related to the hedge contract						0	0		0	2,200,000
Acquisition and integration costs						16,800,000	16,900,000		35,100,000	36,200,000
Gain on sale of assets										1,000,000.0
Selling, general and administrate expense
Business Acquisition [Line Items]
Acquisition and integration costs						8,600,000	8,100,000		19,000,000.0	19,200,000
Research and Development Expense
Business Acquisition [Line Items]
Acquisition and integration costs						900,000	600,000		1,000,000.0	1,000,000.0
Acquisition and integration costs						900,000	600,000		1,000,000.0	1,000,000.0
Other Items, Net
Business Acquisition [Line Items]
Pre-tax expenses									100,000
Acquisition and integration costs						0	(100,000)		100,000	800,000
Costs of products sold
Business Acquisition [Line Items]
Acquisition and integration costs						7,300,000	8,300,000		15,000,000.0	15,200,000
USD Restricted Cash Held in European Euro Functional Entity | Other Items, Net
Business Acquisition [Line Items]
Favorable movement in escrowed USD restricted cash										2,200,000
Disposal Group, Disposed of by Sale, Not Discontinued Operations
Business Acquisition [Line Items]
Initial cash proceeds				€ 180.0			6,900,000			6,900,000
Vendor Relationships
Business Acquisition [Line Items]
Useful life (in years)			3 years
CAE
Business Acquisition [Line Items]
Payments to acquire business			$ 1,900,000			3,900,000
CAE | Certain Financial Metrics
Business Acquisition [Line Items]
Initial cash paid including estimated working capital adjustments			9,900,000
CAE | Certain Financial Metrics | Vendor Relationships
Business Acquisition [Line Items]
Initial cash paid including estimated working capital adjustments								$ 9,900,000
Business Combination, Provisional Information, Initial Accounting Incomplete, Adjustment, Intangibles			$ 8,000,000.0
Battery Acquisition and Auto Care Acquisition
Business Acquisition [Line Items]
Acquisition and integration costs						16,800,000	16,900,000		35,100,000	36,200,000
Battery Acquisition and Auto Care Acquisition | Selling, general and administrate expense
Business Acquisition [Line Items]
Acquisition and integration costs						8,600,000	$ 8,100,000		19,000,000.0	$ 19,200,000
Formulations Acquisition
Business Acquisition [Line Items]
Total potential payments recognized						$ 1,100,000			$ 1,100,000
Payments to acquire business	$ 51,200,000
Intangible asset acquired	20,500,000
Net assets acquired	51,200,000
Business Combination, Contingent Consideration, Asset	$ 35,000,000.0
FDK Indonesia Acquisition [Member]
Business Acquisition [Line Items]
Payments to acquire business					$ 16,900,000
Initial cash paid including estimated working capital adjustments					$ 700,000
Acquisition purchase price		$ 18,200,000
Net assets acquired		$ 17,600,000