Income Taxes	6 Months Ended
Jun. 30, 2015
Income Tax Disclosure [Abstract]
Income Taxes	11. Income Taxes In calculating the provision for income taxes, the Company uses an estimate of the annual effective tax rate based upon the facts and circumstances at each interim period. On a quarterly basis, the estimated annual effective tax rate is adjusted, as appropriate, based upon changes in facts and circumstances, if any, as compared to those forecasted at the beginning of the fiscal year and each interim period thereafter. The provision for income taxes reflected U.S. federal, state and local taxes at an estimated effective tax rate of 39.4% and 38.6% for the six months ended June 30, 2015 and 2014, respectively. The increase in the estimated effective tax rate was primarily due to changes in the valuation allowances related to market adjustments on the Company’s marketable securities.

Income Taxes

6 Months Ended

Jun. 30, 2015

11. Income Taxes

In calculating the provision for income taxes, the Company uses an estimate of the annual effective tax rate based upon the facts and circumstances at each interim period. On a quarterly basis, the estimated annual effective tax rate is adjusted, as appropriate, based upon changes in facts and circumstances, if any, as compared to those forecasted at the beginning of the fiscal year and each interim period thereafter.

The provision for income taxes reflected U.S. federal, state and local taxes at an estimated effective tax rate of 39.4% and 38.6% for the six months ended June 30, 2015 and 2014, respectively. The increase in the estimated effective tax rate was primarily due to changes in the valuation allowances related to market adjustments on the Company’s marketable securities.