Income Taxes	6 Months Ended
Jun. 30, 2013
Income Taxes
Income Taxes	4. Income Taxes The difference between the U.S. federal statutory tax rate of 35% and the Company's effective tax rates for the three and six months ended June 30, 2013 and 2012 was principally due to state income taxes. The Company had unrecognized tax benefits of approximately $1.0 million and $0.8 million as of June 30, 2013 and December 31, 2012, respectively, which were included in other liabilities in the accompanying consolidated balance sheets. The Company's policy is to recognize interest and penalties related to income tax liabilities as a component of income tax expense in the consolidated statements of operations. The amount of interest and penalties charged to income tax expense because of the unrecognized tax benefits was less than $0.1 million for each of the three and six month periods ended June 30, 2013 and 2012. The Company is subject to taxation in various jurisdictions. The Company's federal tax returns for 2009 and 2010 are currently under examination by the Internal Revenue Service. The Company remains subject to examination by U.S. federal authorities for the remaining open tax year (2011) and by various state authorities for the years 2008 through 2011.

Income Taxes

6 Months Ended

Jun. 30, 2013

4. Income Taxes

The difference between the U.S. federal statutory tax rate of 35% and the Company's effective tax rates for the three and six months ended June 30, 2013 and 2012 was principally due to state income taxes.

The Company had unrecognized tax benefits of approximately $1.0 million and $0.8 million as of June 30, 2013 and December 31, 2012, respectively, which were included in other liabilities in the accompanying consolidated balance sheets.

The Company's policy is to recognize interest and penalties related to income tax liabilities as a component of income tax expense in the consolidated statements of operations. The amount of interest and penalties charged to income tax expense because of the unrecognized tax benefits was less than $0.1 million for each of the three and six month periods ended June 30, 2013 and 2012.

The Company is subject to taxation in various jurisdictions. The Company's federal tax returns for 2009 and 2010 are currently under examination by the Internal Revenue Service. The Company remains subject to examination by U.S. federal authorities for the remaining open tax year (2011) and by various state authorities for the years 2008 through 2011.