Income Taxes Unrecognized Benefits (Details) - USD ($)	Mar. 31, 2020	Dec. 31, 2019
Income Tax Disclosure [Abstract]
Unrecognized tax benefit - Permanent tax positions	$ 3,800,000	$ 3,700,000
Unrecognized tax benefit - Temporary tax positions	1,500,000	1,500,000
Total unrecognized tax benefit	5,300,000	5,200,000
NOL and tax credit carryforwards	4,600,000	4,400,000
Related NOLs and tax credit carryforwards	(1,600,000)	(1,400,000)
Reasonably possible decrease in unrecognized tax benefits	3,700,000
Penalties related to unrecognized tax benefits	$ 0	$ 0