Income Taxes (Details) - USD ($)	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2015	Dec. 31, 2015
Income Tax Disclosure [Abstract]
Effective tax rate (percent)	32.00%	32.00%
Unrecognized tax benefits			$ 33,900,000
Unrecognized tax benefits adjusted			30,000,000
Amount of unrecognized tax benefits where significant change is reasonably possible			3,500,000
Accrued income tax interest and penalties			$ 8,600,000
Increase (decrease) in accrued income tax interest and penalties	$ 0