Income Taxes	6 Months Ended
Jun. 30, 2015
Income Tax Disclosure [Abstract]
INCOME TAXES	INCOME TAXES The Company had an effective tax rate of 36.3% and 35.8% for the three and six months ended June 30, 2015, respectively. The Company had an effective tax rate of 36.8% and 36.8% for the three and six months ended June 30, 2014, respectively. Total income tax benefit or provision for the three and six months ended June 30, 2015 and 2014 differed from amounts computed by applying the U.S. federal statutory tax rate to income (loss) before income taxes due primarily to state tax apportionments and nondeductible expenses. The total income tax benefit of $89.4 million and $115.7 million for the three and six months ended June 30, 2015 included $82.7 million and $107.0 million, respectively, of deferred income tax benefit resulting from full-cost ceiling impairments. Based upon its projections during 2014, the Company anticipated incurring a small alternative minimum tax (“AMT”) liability for the year ending December 31, 2014, the proportionate share of which was recorded as the current income tax provision for the three and six months ended June 30, 2014.

Income Taxes

6 Months Ended

Jun. 30, 2015

The Company had an effective tax rate of 36.3% and 35.8% for the three and six months ended June 30, 2015, respectively. The Company had an effective tax rate of 36.8% and 36.8% for the three and six months ended June 30, 2014, respectively. Total income tax benefit or provision for the three and six months ended June 30, 2015 and 2014 differed from amounts computed by applying the U.S. federal statutory tax rate to income (loss) before income taxes due primarily to state tax apportionments and nondeductible expenses. The total income tax benefit of $89.4 million and $115.7 million for the three and six months ended June 30, 2015 included $82.7 million and $107.0 million, respectively, of deferred income tax benefit resulting from full-cost ceiling impairments. Based upon its projections during 2014, the Company anticipated incurring a small alternative minimum tax (“AMT”) liability for the year ending December 31, 2014, the proportionate share of which was recorded as the current income tax provision for the three and six months ended June 30, 2014.