Income Taxes Schedule of Capital Loss Carryforwards (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2012
Capital Loss Carryforwards [Line Items]
Capital loss carryforward amount, federal	9,903
Capital loss carryforward amount, state	10,035
Minimum [Member]
Capital Loss Carryforwards [Line Items]
Capital loss carryforwards, expiration dates	12/31/2013
Maximum [Member]
Capital Loss Carryforwards [Line Items]
Capital loss carryforwards, expiration dates	12/31/2016