Guarantee Arrangements (Tables)

12 Months Ended

Dec. 31, 2022

Non-Contingent Portion

Guarantor Obligations [Line Items]

Schedule of Provision for Losses on Customer Guarantees

Changes in the Company’s stand ready obligation (non-contingent) to perform under guarantees were as follows (in millions):

	Year Ended December 31,			Three Months Ended December 31, (transition period)			Year Ended September 30,
	2022			2021			2021			2020
Balance at beginning of period	$	12.1		$	14.1		$	15.5		$	15.8
Adoption of ASC 326		—			—			(0.6	)		—
Provision for new credit guarantees		3.0			0.4			2.4			4.9
Changes for pre-existing guarantees, net		(1.5	)		0.3			(0.5	)		(0.5	)
Amortization of previous guarantees		(1.2	)		(2.7	)		(2.8	)		(5.0	)
Foreign currency translation		(0.2	)		—			0.1			0.3
Balance at end of period	$	12.2		$	12.1		$	14.1		$	15.5

Contingent Portion

Guarantor Obligations [Line Items]

Schedule of Provision for Losses on Customer Guarantees

Changes in the Company’s off-balance sheet credit loss exposure (contingent) related to its guarantees were as follows (in millions):

	Year Ended December 31,			Three Months Ended December 31, (transition period)			Year Ended September 30,
	2022			2021			2021
Balance at beginning of period	$	4.0		$	7.3		$	—
Adoption of ASC 326		—			—			7.1
Provision for new credit guarantees		1.6			0.1			2.1
Changes in allowance for pre-existing guarantees, net		1.0			(3.4	)		(2.0	)
Foreign currency translation		(0.3	)		—			0.1
Balance at end of period	$	6.3		$	4.0		$	7.3