Income Taxes (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2015
Income Tax Disclosure [Abstract]
Effective tax rate (percent)	35.20%	31.60%
Unrecognized tax benefits, interest and penalties accrued	$ 1.5
Unrecognized tax benefits	13.2
Unrecognized tax benefits that would decrease the effective tax rate if recognized	13.1
Unrecognized tax benefits that could be recognized within 12 months	$ 9.1