Employee Benefit Plans (Details) - 401K Plan $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2019 USD ($)	Sep. 30, 2018 USD ($)	Sep. 30, 2019 USD ($)	Sep. 30, 2018 USD ($)
Defined Contribution Plan Disclosure [Line Items]
Employer match of first tier of employee contribution (as a percent)			100
First tier percentage of compensation eligible for match			3
Employer match of second tier of employee contribution (as a percent)			50
Second tier percentage of compensation eligible for match			4
Employer matching contributions	$ 0.8	$ 1.0	$ 2.5	$ 2.6
Employer non-elective contribution			$ 0.1