Income Taxes (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended	6 Months Ended
	Jun. 30, 2012	Jun. 30, 2012
Income Taxes (Textual) [Abstract]
Future taxable income		$ 4.8
Net operating loss carryforwards expire in 2031		5.2
Net operating loss carryforwards expire in 2032		11.9
Net operating loss carryforwards, Expiration date one		2030
Net operating loss carryforwards, Expiration date two		2031
Net operating loss carryforwards, Expiration date three		2032
Net deferred tax assets	33.7	33.7
Projected future taxable income period		3 years
Projected cumulative tax losses period		2 years
Period for net unrealized pre-acquisition built-in losses		5 years
Future utilization of built-in losses	53	53
Limited future utilization of built-in losses	1.1	1.1
Expiration period for net unrealized pre-acquisition built-in losses		Oct. 07, 2015
Income tax provision	3.5	4.0
Maximum [Member]
Operating Loss Carryforwards [Line Items]
Estimated unrealized built-in losses	9.0	9.0
Minimum [Member]
Operating Loss Carryforwards [Line Items]
Estimated unrealized built-in losses	8.0	8.0
Domestic Tax Authority [Member]
Operating Loss Carryforwards [Line Items]
Federal taxable net operating losses	14.1	11.9
Federal net operating loss carryforwards	21.9	21.9
Income Taxes (Textual) [Abstract]
Net operating loss carryforwards expire in 2032	$ 21.9	$ 21.9