Income Taxes

3 Months Ended

Mar. 31, 2013

Income Tax Disclosure [Abstract]

Income Taxes

Income Taxes

We are subject to income tax in the U.S. federal jurisdiction and various state and foreign jurisdictions and have identified our federal tax return and tax returns in California and Massachusetts as “major” tax filings. U.S. federal tax examinations through 2009 have been concluded. Our U.S. federal tax returns for 2010 and subsequent years remain open to examination. Our California and Massachusetts tax returns for 2008 and subsequent years remain open to examination.

At March 31, 2013, our unrecognized tax benefit was $0.5 million, the recognition of which would reduce our income tax expense by $0.3 million. We do not expect that our unrecognized tax benefit will materially change in the next 12 months.