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Retirement Plan
12 Months Ended
Dec. 31, 2020
Retirement Benefits [Abstract]  
Retirement Plan Retirement plan:The Company sponsors a defined contribution retirement plan under Section 401(k) of the Internal Revenue Code. The plan covers all employees who meet certain eligibility and participation requirements. Participants may contribute up to 90% of their eligible earnings, as limited by law. The Company makes a matching contribution equal to 100% on the first 5% of participant contributions to the plan. The Company made contributions of approximately $1.1 million, $1.0 million and $0.8 million in years, 2020, 2019 and 2018.