Retirement Savings Plan	12 Months Ended
Dec. 31, 2020
Retirement Benefits [Abstract]
Retirement Savings Plan	Retirement Savings Plan The Company sponsors a defined contribution 401(k) retirement plan (the "401(k) Plan") covering all employees who meet certain age and service requirements. Employees may contribute a percentage of their eligible compensation into the 401(k) Plan, subject to certain limitations imposed by the Internal Revenue Code. Through December 31, 2020, the Company matched employees' contributions at a rate of 100% of employees' contributions up to the first 5.0% of the employees' compensation contributed to the 401(k) Plan. The Company's matching contributions were $5.3 million, $5.1 million and $5.2 million in 2020, 2019 and 2018, respectively.

The entire disclosure for an entity's employee compensation and benefit plans, including, but not limited to, postemployment and postretirement benefit plans, defined benefit pension plans, defined contribution plans, non-qualified and supplemental benefit plans, deferred compensation, share-based compensation, life insurance, severance, health care, unemployment and other benefit plans.

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-Publisher FASB
-Name Accounting Standards Codification
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-Publisher FASB
-Name Accounting Standards Codification
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Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
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