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Employee Benefit Plans (Narrative) (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended
	Mar. 31, 2015
Defined Benefit Plan Disclosure [Line Items]
Annual benefits paid to retired participants	$ 0.3us-gaap_DefinedBenefitPlanBenefitsPaid
Pension Benefit Plan [Member]
Defined Benefit Plan Disclosure [Line Items]
Benfit plan, cash contributions	0.5
Expected cash contributions	3.3
Other Benefits Plan [Member]
Defined Benefit Plan Disclosure [Line Items]
Benfit plan, cash contributions	0.2
Expected cash contributions	$ 1.7

The amount of payments made for which participants are entitled under a pension plan, including pension benefits, death benefits, and benefits due on termination of employment. Also includes payments made under a postretirement benefit plan, including prescription drug benefits, health care benefits, life insurance benefits, and legal, educational and advisory services. This item represents a periodic decrease to the plan obligations and a decrease to plan assets.

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