A summary of prepaid expenses and other current assets as of December 31 follows:


	2023		2022
Income taxes receivable	$	126.3	$	214.0
Prepaid expenses	123.0		114.3
Inventories	97.3		96.6
Other non-trade receivables	63.2		59.8
Reinsurance receivable	35.4		31.9
Prepaid fees for cloud-based hosting arrangements, current	17.0		14.4
Derivative and hedging assets	4.2		—
Other current assets	6.2		5.5
Total	$	472.6	$	536.5

A summary of other assets as of December 31 follows:


	2023		2022
Investments	$	469.4	$	281.4
Operating right-of-use lease assets	238.1		275.1
Deferred compensation plan	112.7		100.6
Deferred contract costs and sales commissions	82.5		80.2
Reinsurance receivable	92.1		84.1
Derivative and hedging assets	74.1		105.8
Prepaid fees and capitalized implementation costs for cloud-based hosting arrangements	67.6		51.4
Amounts recoverable for capping, closure and post-closure obligations	21.9		20.5
Deferred financing costs	3.6		5.1
Other	21.9		21.3
Total	$	1,183.9	$	1,025.5