Income Taxes	9 Months Ended
Sep. 30, 2013
Income Tax Disclosure [Abstract]
Income Taxes	NOTE 4 — INCOME TAXES The Company’s effective tax rate from continuing operations for the nine months ended September 30, 2013 and 2012 was 36% and 38%, respectively. The effective tax rate for the nine months ended September 30, 2013 was greater than the Federal statutory rate due to state income taxes, certain expenses that are not deductible for tax purposes and the impact of adjustments made during the recently concluded Internal Revenue Service ("IRS") audit of the 2009 to 2011 fiscal years. These expenses were partially offset by benefits from 2012 and 2013 research tax credits, the recognition of 2012 provision to return adjustments, and the recognition of previously uncertain tax positions. The effective tax rate for the nine months ended September 30, 2012 was greater than the Federal statutory rate due to state income taxes and certain expenses that are not deductible for tax purposes. Certain tax authorities may periodically audit the Company, and the Company may occasionally be assessed interest and penalties by tax jurisdictions. The Company recognizes accrued interest from uncertain income tax benefits in its income tax provision, while penalties are accrued in selling, general and administrative expenses. During the nine months ended September 30, 2013, the Company accrued less than $0.1 million of interest expense related to uncertain income tax benefits and had gross uncertain tax benefits of $0.4 million as of September 30, 2013. If these benefits had been recognized, there would have been a $0.3 million effect to annual income tax expense. The Company recently settled with the IRS on an uncertain tax position related to the timing of taxation of the Horse Racing Equity Trust Fund ("HRE Trust Fund") proceeds recognized by the Company in 2011. The settlement resulted in a reduction to the uncertain tax positions of $6.8 million for Federal taxes. The Company filed amended state income tax returns and paid an additional $0.6 million of uncertain tax benefits related to state income taxes on the HRE Trust Fund income. The Company anticipates a decrease in its unrecognized tax positions of approximately $0.1 million during the next twelve months. The expected reduction in the unrecognized tax positions over the next twelve months is due to the expiration of statutes of limitations. During October 2012, the Company funded a $2.9 million income tax payment to the State of Illinois related to a dispute over state income tax apportionment methodology which was recorded as an other asset. The Company filed its state income tax returns related to the years 2002 through 2005 following the methodology prescribed by Illinois statute; however, the State of Illinois has taken a contrary tax position. The Company filed a formal protest with the State of Illinois during the fourth quarter of 2012. The Company does not expect this issue to have a material adverse effect on its business, financial condition and results of operations.

NOTE 4 — INCOME TAXES

The Company’s effective tax rate from continuing operations for the nine months ended September 30, 2013 and 2012 was 36% and 38%, respectively. The effective tax rate for the nine months ended September 30, 2013 was greater than the Federal statutory rate due to state income taxes, certain expenses that are not deductible for tax purposes and the impact of adjustments made during the recently concluded Internal Revenue Service ("IRS") audit of the 2009 to 2011 fiscal years. These expenses were partially offset by benefits from 2012 and 2013 research tax credits, the recognition of 2012 provision to return adjustments, and the recognition of previously uncertain tax positions. The effective tax rate for the nine months ended September 30, 2012 was greater than the Federal statutory rate due to state income taxes and certain expenses that are not deductible for tax purposes.

Certain tax authorities may periodically audit the Company, and the Company may occasionally be assessed interest and penalties by tax jurisdictions. The Company recognizes accrued interest from uncertain income tax benefits in its income tax provision, while penalties are accrued in selling, general and administrative expenses. During the nine months ended September 30, 2013, the Company accrued less than $0.1 million of interest expense related to uncertain income tax benefits and had gross uncertain tax benefits of $0.4 million as of September 30, 2013. If these benefits had been recognized, there would have been a $0.3 million effect to annual income tax expense.

The Company recently settled with the IRS on an uncertain tax position related to the timing of taxation of the Horse Racing Equity Trust Fund ("HRE Trust Fund") proceeds recognized by the Company in 2011. The settlement resulted in a reduction to the uncertain tax positions of $6.8 million for Federal taxes. The Company filed amended state income tax returns and paid an additional $0.6 million of uncertain tax benefits related to state income taxes on the HRE Trust Fund income. The Company anticipates a decrease in its unrecognized tax positions of approximately $0.1 million during the next twelve months. The expected reduction in the unrecognized tax positions over the next twelve months is due to the expiration of statutes of limitations.

During October 2012, the Company funded a $2.9 million income tax payment to the State of Illinois related to a dispute over state income tax apportionment methodology which was recorded as an other asset. The Company filed its state income tax returns related to the years 2002 through 2005 following the methodology prescribed by Illinois statute; however, the State of Illinois has taken a contrary tax position. The Company filed a formal protest with the State of Illinois during the fourth quarter of 2012. The Company does not expect this issue to have a material adverse effect on its business, financial condition and results of operations.