Income Taxes Unrecognized Tax Benefits - Annual (Details) - USD ($)	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Income Tax Contingency [Line Items]
Unrecognized Tax Benefits	$ 299,000	$ 3,947,000	$ 0
Unrecognized Tax Benefits, Increase Resulting from Acquisition	0	2,847,000
Unrecognized Tax Benefits, Decrease Resulting from Current Period Tax Positions	(3,648,000)
Unrecognized Tax Benefits, Increase Resulting from Current Period Tax Positions		$ 1,100,000
Unrecognized Tax Benefits that Would Impact Effective Tax Rate	(1,700,000)
Unrecognized Tax Benefits, Interest on Income Taxes Expense	300,000
New York State Division of Taxation and Finance [Member]
Income Tax Contingency [Line Items]
Unrecognized Tax Benefits	$ 1,200,000