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Provision for Income Taxes
3 Months Ended
Mar. 31, 2016
Income Tax Disclosure [Abstract]  
Provision for Income Taxes
Income Taxes 
Each year the company files hundreds of tax returns in the various national, state and local income taxing jurisdictions in which it operates. These tax returns are subject to examination and possible challenge by the tax authorities. Positions challenged by the tax authorities may be settled or appealed by the company. As a result, there is an uncertainty in income taxes recognized in the company’s financial statements in accordance with accounting for income taxes and accounting for uncertainty in income taxes. It is reasonably possible that net reductions to the company’s global unrecognized tax benefits could be in the range of $100 to $120 within the next twelve months with the majority due to the settlement of uncertain tax positions with various tax authorities.