Revenue - Schedule of Disaggregation of Revenue by Reporting Unit and Timing of Revenue Recognition (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
Total net sales	$ 229.6	$ 255.2
U.S.
Total net sales	202.8	213.1
International
Total net sales	26.8	42.1
Point in time
Total net sales	186.6	213.5
Point in time | U.S.
Total net sales	165.5	175.6
Point in time | International
Total net sales	21.1	37.9
Over time
Total net sales	43.0	41.7
Over time | U.S.
Total net sales	37.3	37.5
Over time | International
Total net sales	5.7	4.2
Capital Markets | U.S.
Total net sales	109.7	117.5
Capital Markets | Point in time | U.S.
Total net sales	85.0	93.5
Capital Markets | Over time | U.S.
Total net sales	24.7	24.0
Investment Markets | U.S.
Total net sales	93.1	89.5
Investment Markets | Point in time | U.S.
Total net sales	80.5	76.0
Investment Markets | Over time | U.S.
Total net sales	$ 12.6	13.5
Language Solutions | U.S.
Total net sales		6.1
Language Solutions | Point in time | U.S.
Total net sales		6.1
Language Solutions | Over time | U.S.
Total net sales		$ 0.0