Income Taxes Net Operating Loss Carryforwards (Details) (USD $) In Thousands, unless otherwise specified	Sep. 30, 2012
State and Local Jurisdiction [Member]
Operating Loss Carryforwards [Line Items]
Operating Loss Carryforwards	$ 15,737
Expiring beginning in 2028 [Member] | Internal Revenue Service (IRS) [Member]
Operating Loss Carryforwards [Line Items]
Operating Loss Carryforwards	83,191
Federal Tax Credit Carryforward, Amount	3,868
Expiring between 2020 and 2027 [Member] | State and Local Jurisdiction [Member]
Operating Loss Carryforwards [Line Items]
Operating Loss Carryforwards	8,615
Expiring between 2028 and 2033 [Member] | State and Local Jurisdiction [Member]
Operating Loss Carryforwards [Line Items]
Operating Loss Carryforwards	$ 7,122