Property and Equipment (Tables)

12 Months Ended

Dec. 31, 2016

Property, Plant and Equipment [Abstract]

Schedule of properties and related accumulated depreciation

Property and equipment and related accumulated depreciation are as follows (in millions):

	December 31,
	2016		2015
Land	$	34.2	$	35.9
Buildings	160.3		181.5
Technology equipment	213.0		200.5
Software	508.2		489.4
Furniture, fixtures and other equipment	122.1		138.0
Leasehold improvements	76.4		72.2
Construction-in-progress	18.3		13.6
	1,132.5		1,131.1
Less accumulated depreciation and amortization	896.8		874.4
Properties, net	$	235.7	$	256.7

Summary of software development and maintenance costs

The following table summarizes software development costs for our proprietary systems and software products (in millions):

	Year Ended December 31,
	2016		2015		2014
Capitalized software development costs	$	21.5	$	23.3	$	28.8
Amortization of capitalized software development costs	22.9		25.5		25.3