Income Taxes

6 Months Ended

Jun. 30, 2013

Income Tax Disclosure [Abstract]

INCOME TAXES

INCOME TAXES

The Company's provision for income taxes in interim periods is based on an estimated annual effective income tax rate derived, in part, from estimated annual pre-tax results from ordinary operations. The annual effective income tax rate is reviewed and, if necessary, adjusted on a quarterly basis.

The Company's income tax expense (benefit) consisted of the following:

	Three Months Ended					Six Months Ended
	June 30,					June 30,
	2013		2012			2013		2012
Income (loss) before provision for income taxes	$	23,528	$	5,128		$	21,512	$	(6,054	)
Income tax expense (benefit) using estimated annual effective income tax rate	9,575		1,904			8,755		(2,247		)
Changes in effective tax rates	321		98			—		—
Out-of-period adjustment related to non-deductible expenses in 2011	—		—			—		757
Impact of discrete items, net	121		(769		)	927		(769		)
Income tax expense (benefit)	$	10,017	$	1,233		$	9,682	$	(2,259	)

The discrete item for the three months ended June 30, 2013 is related to the accrual of an unrecognized tax benefit and the discrete items for the six months ended June 30, 2013 is related to the impact of the Company's loss on the extinguishment of the 11% Senior Secured Notes due to the differences in the Company's marginal tax rate and its anticipated effective annual income tax rate at June 30, 2013 and the accrual of an unrecognized tax benefit. The discrete item for the three and six months ended June 30, 2012 is related to the conversion of the Company's 3.875% Senior Convertible Debentures due 2026. The out-of-period adjustment for the six months ended June 30, 2012 is related to a non-accrual of a non-deductible expense related to permanent difference for income taxes in the fourth quarter of 2011.