Income Taxes Income Taxes Details 7 (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017
Operating Loss Carryforwards [Line Items]
Year One	$ 119,956
Year Two	174,507
Year Three	152,788
Year Four	80,831
Thereafter	2,167,841
Operating Loss Carryforwards	2,695,923
Loss and tax credit carry-forwards	153,688	$ 170,979
Valuation allowance	120,931	$ 141,154
Federal
Operating Loss Carryforwards [Line Items]
Year One	0
Year Two	0
Year Three	0
Year Four	0
Thereafter	3,652
Operating Loss Carryforwards	3,652
Loss and tax credit carry-forwards	767
Valuation allowance	0
State
Operating Loss Carryforwards [Line Items]
Year One	119,956
Year Two	174,507
Year Three	152,788
Year Four	80,831
Thereafter	2,152,860
Operating Loss Carryforwards	2,680,942
Valuation Allowance, Deferred Tax Asset, Increase (Decrease), Amount	4,000
Loss and tax credit carry-forwards	146,275
Valuation allowance	100,625
Foreign
Operating Loss Carryforwards [Line Items]
Year One	0
Year Two	0
Year Three	0
Year Four	0
Thereafter	11,329
Operating Loss Carryforwards	11,329
Valuation Allowance, Deferred Tax Asset, Increase (Decrease), Amount	16,200
Loss and tax credit carry-forwards	6,646
Valuation allowance	$ 20,306