Income Taxes Net Operating Loss Carryforwards (Details) $ in Thousands	Dec. 31, 2015 USD ($)
State and Local Jurisdiction [Member]
Operating Loss Carryforwards [Line Items]
Operating Loss Carryforwards	$ 8,100
Expiring beginning in 2028 [Member] | Internal Revenue Service (IRS) [Member]
Operating Loss Carryforwards [Line Items]
Operating Loss Carryforwards	20,700
Federal Tax Credit Carryforward, Amount	9,400
Expiring between 2020 and 2027 [Member] | State and Local Jurisdiction [Member]
Operating Loss Carryforwards [Line Items]
Operating Loss Carryforwards	3,000
Expiring between 2028 and 2033 [Member] | State and Local Jurisdiction [Member]
Operating Loss Carryforwards [Line Items]
Operating Loss Carryforwards	$ 5,100