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Income Taxes
6 Months Ended
Jun. 30, 2016
Income Tax Disclosure [Abstract]  
Income Taxes
Income Taxes
The Company uses an estimated annual effective tax rate based upon a projection of its annual fiscal year results to measure the income tax benefit or expense recognized in each interim period. The Company’s effective tax rate, including the impact of discrete benefit items, was 37% and 39% for the three months ended June 30, 2016 and 2015, respectively, and 38% for each six month period ended June 30, 2016 and 2015.

The Company's 2012 through 2015 tax periods are open to examination by the Internal Revenue Service and the 2011 through 2015 tax periods are open to examination by most state tax authorities. Inventus's federal income tax return for fiscal year 2013 is currently under examination by the Internal Revenue Service and at this time, although the outcome is subject to significant uncertainty, the Company believes it has valid positions supporting its tax return and does not expect that proposed adjustments, if any, would be material to the Company's consolidated financial statements.