Accounting Policies (Policy)	3 Months Ended
Accounting Policies (Policy)	Mar. 31, 2016
Accounting Policies [Abstract]
Presentation of Deferred Taxes	In November 2015, the Financial Accounting Standards Board (“FASB”) issued Accounting Standards Update (“ASU”) 2015-17, which requires presentation of deferred tax assets and liabilities as non-current in the balance sheet, which simplifies the current guidance. Effective January 1, 2016, we early-adopted the guidance and retrospectively adjusted the December 31, 2015 presentation by reclassifying $28.0 million of current deferred tax assets into the non-current liability “Deferred income taxes”.

Disclosure of accounting policy for income taxes, which may include its accounting policies for recognizing and measuring deferred tax assets and liabilities and related valuation allowances, recognizing investment tax credits, operating loss carryforwards, tax credit carryforwards, and other carryforwards, methodologies for determining its effective income tax rate and the characterization of interest and penalties in the financial statements.