OTHER ASSETS, NET

6 Months Ended

Jun. 30, 2018

OTHER ASSETS, NET

OTHER ASSETS, NET

8.   OTHER ASSETS, NET

Other assets, net consisted of the following as of June 30, 2018 and December 31, 2017 (in millions):

	June 30,		December 31,
	2018		2017
Software development work in progress	$	7.1	$	10.2
Data processing software		217.5		220.0
Less accumulated depreciation and amortization		(187.1)		(189.6)
Data processing software, net		37.5		40.6
Other assets (1)		22.1		18.9
Other assets, net	$	59.6	$	59.5

(1) At December 31, 2017 and June 30, 2018, the majority of the balance included long-term prepaid assets and notes receivable.

Amortization expense related to data processing software was $4.6 million and $4.4 million for the three months ended June 30, 2018 and 2017, respectively, and $9.7 million and $8.5 million for the six months ended June 30, 2018 and 2017, respectively.