OTHER ASSETS, NET - Schedule of other assets, net (Details) - USD ($) $ in Millions	3 Months Ended
Mar. 31, 2020	Mar. 31, 2019	Dec. 31, 2019
Finite-Lived Intangible Assets
Less accumulated depreciation and amortization	$ (57.9)		$ (57.2)
Data processing software, net	28.3		29.7
Other assets	28.1		21.9
Data processing software and other assets, net	56.4		51.6
Notes receivable	15.3		9.2
Amortization	32.5	$ 37.5
Software development work in progress
Finite-Lived Intangible Assets
Software	0.3		2.6
Data processing software
Finite-Lived Intangible Assets
Software	85.9		$ 84.3
Amortization	$ 1.8	$ 3.5

The aggregate expense charged against earnings to allocate the cost of intangible assets (nonphysical assets not used in production) in a systematic and rational manner to the periods expected to benefit from such assets. As a noncash expense, this element is added back to net income when calculating cash provided by or used in operations using the indirect method.

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For each balance sheet presented, the amount of accumulated amortization for capitalized computer software costs.

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Amount before accumulated amortization of capitalized costs for computer software, including but not limited to, acquired and internally developed computer software.

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The carrying amount of capitalized computer software costs net of accumulated amortization as of the balance sheet date.

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Amount, after allowance for credit loss, of accounts and financing receivables, classified as noncurrent. Includes, but is not limited to, notes and loan receivable.

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Amount of other miscellaneous assets expected to be realized or consumed after one year or normal operating cycle, if longer.

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