Defined Contribution Retirement Plan	12 Months Ended
	Dec. 31, 2020
Retirement Benefits [Abstract]
Defined Contribution Retirement Plan	Defined Contribution Retirement PlanThe Company maintains a 401(k) defined contribution retirement plan covering substantially all of its employees. The plan provides for matching and discretionary contributions by the Company. Contributions were $1.7 million, $1.5 million and $1.3 million for the years ended December 31, 2020, 2019 and 2018, respectively.