Summary of Significant Accounting Policies Equity Incentive Awards (Tables)

3 Months Ended

Mar. 31, 2017

Schedule of Share-based Payment Award, Stock Options, Valuation Assumptions [Abstract]

Schedule of Share-based Payment Award, Stock Options, Valuation Assumptions [Table Text Block]

	Expected Volatility		Risk-free Interest Rate		Expected Term	Dividend Rate
March 31, 2017:
Employees	62	%	1.7	%	4	—	%
Officers and non-employee directors	71	%	2.3	%	8	—	%
March 31, 2016:
Employees	63	%	1.1	%	4	—	%
Officers and non-employee directors	83	%	1.6	%	8	—	%

Schedule of Share-based Compensation, Stock Options, Activity [Table Text Block]

	Options		Weighted Average Exercise Price
	(in thousands)
Outstanding at December 31, 2016	4,834		$	11.24
Granted	709		14.43
Exercised	(96	)	11.53
Expired	(120	)	27.58
Forfeited	(3	)	15.80
Outstanding at March 31, 2017	5,324		11.29
Exercisable at March 31, 2017	2,875		$	11.48

Schedule of Nonvested Restricted Stock Units Activity [Table Text Block]

	Shares		Weighted Average Grant Date Fair Value
	(in thousands)
Outstanding at December 31, 2016	875		$	8.13
Granted	418		14.44
Vested	(286	)	8.78
Forfeited	(4	)	10.37
Outstanding at March 31, 2017	1,003		$	10.56