Other Current Liabilities and Other Liabilities (Details 2) (USD $)			3 Months Ended
	Mar. 31, 2013	Dec. 31, 2012	Mar. 31, 2013 IRS	Jun. 30, 2013 IRS
Unrecognized tax benefits
Income tax accrued	$ 4,826,000	$ 125,000	$ 4,700,000
Long term uncertain tax position	1,456,000		1,500,000
Interest expense related to tax provision			600,000
Expected payment of income tax expense				4,700,000
Income tax accrued		$ 0