Basis of Presentation and Summary of Significant Accounting and Financial Reporting Policies New Accounting Pronouncement, Early Adoption Narrative (Details) - USD ($) $ in Millions	Sep. 30, 2016	Jan. 01, 2016	Dec. 31, 2015
New Accounting Pronouncement, Early Adoption [Line Items]
Deferred income taxes	$ 717.0		$ 714.3
New Accounting Pronouncement, Early Adoption, Effect [Member]
New Accounting Pronouncement, Early Adoption [Line Items]
Deferred income taxes		$ 70.4
Deferred Tax Assets, Gross, Noncurrent		90.9
Deferred Tax Assets, Valuation Allowance, Noncurrent		20.5
Restatement Adjustment [Member] | New Accounting Pronouncement, Early Adoption, Effect [Member]
New Accounting Pronouncement, Early Adoption [Line Items]
Deferred Tax Assets, Gross, Noncurrent		0.3
Deferred Tax Assets, Valuation Allowance, Noncurrent		$ 2.2