Employee Benefit Plans Employee Benefit Plans (Narrative) (Details) (USD $) In Millions, unless otherwise specified	1 Months Ended	3 Months Ended		1 Months Ended
	May 07, 2013	Mar. 31, 2014	Mar. 31, 2013	May 08, 2014 Subsequent Event [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined benefit plan, employer contributions	$ 1.8			$ 2.1
Defined contribution plan, compensation expense		$ 0.9	$ 1.0