Income Taxes - Narrative (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
Operating Loss Carryforwards [Line Items]
Statutory rate of income taxes	21.00%	21.00%
Separate Return Limitation Year Tax Rules
Operating Loss Carryforwards [Line Items]
Operating loss carryforwards subject to SRLY tax rules will expire unutilized at December 31, 2021	$ 27