OTHER ASSETS, NET

6 Months Ended

Jun. 30, 2021

7. OTHER ASSETS, NET

Other assets, net consisted of the following as of June 30, 2021 and December 31, 2020 (in millions):


	June 30,		December 31,
	2021		2020
Software development work in progress	$	8.6	$	8.4
Data processing software		96.3		92.6
Less accumulated depreciation and amortization		(66.9)		(63.5)
Data processing software, net		38.0		37.5
Other assets (1)		55.1		38.8
Other assets, net	$	93.1	$	76.3

(1)

At June 30, 2021 and December 31, 2020, the majority of the balance included long-term prepaid assets and notes receivable. See Note 6 (“Credit Losses”) for more information on the notes receivable included within other assets, net on the condensed consolidated balance sheets. As of June 30, 2021 and December 31, 2020, the notes receivable, net balance was $49.2 million and $32.6 million, respectively.

Amortization expense related to data processing software was $1.8 million and $1.7 million for the three months ended June 30, 2021 and 2020, respectively, and $3.5 million and $3.5 million for the six months ended June 30, 2021 and 2020, respectively.