Income Taxes (Details) (USD $)			3 Months Ended
	Mar. 31, 2014	Dec. 31, 2013	Mar. 31, 2014 Internal Revenue Service (IRS)	Sep. 30, 2012 Internal Revenue Service (IRS)	Mar. 31, 2014 State Jurisdiction (Texas)
Tax Audits [Abstract]
Year(s) no longer subject to audit as statute of limitations has expired			2008
Earliest year subject to examination			2009		2009
Year(s) under examination				2010 and 2011
Tax Adjustments, Settlements, and Unusual Provisions			$ 10,000,000
Unrecognized Tax Benefits [Abstract]
Unrecognized tax benefit - Permanent tax positions	200,000	1,200,000
Unrecognized tax benefit - Temporary tax positions	2,300,000	2,900,000
Total unrecognized tax benefit	2,500,000	4,100,000
NOL and tax credit carryforwards	(1,300,000)	(2,400,000)
Amounts accrued for penalties related to unrecognized tax benefits	$ 0	$ 0