Income Taxes - Narrative (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2015	Dec. 31, 2015
Operating Loss Carryforwards [Line Items]
Effective income tax rate	33.20%	62.40%
Federal statutory tax rate	35.00%
Tax credit carryforwards			$ 19.5
Liability for uncertain tax positions from continuing operations	$ 0.3		0.3
Liability for uncertain tax positions from discontinued operations	1.1		1.1
Liability for uncertain tax positions	$ 1.4		1.4
Foreign Income Tax Credit | Foreign Tax Authority
Operating Loss Carryforwards [Line Items]
Tax credit carryforwards			$ 9.2
Tax credit carryforward expiration period	10 years
Tax credit carryforward expiration year	2020