Employee Benefit Plans - Components of Net Periodic Pension Cost (Details) - Pension Plans [Member] - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Defined Benefit Plan Disclosure [Line Items]
Service costs	$ 0.4	$ 0.4	$ 0.4
Interest cost	0.8	1.2	1.2
Expected return on plan assets	(0.3)	(0.3)	(0.2)
Amortization of unrecognized gains and losses	0.3	0.0	0.1
Pension expense	$ 1.2	$ 1.3	$ 1.5