Employee Benefit Plans (Details) - USD ($) $ in Thousands	12 Months Ended
Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
401(k) Employee Savings and Profit Sharing Plan [Member]
Defined Contribution Plan [Abstract]
Company's contribution to the plan	$ 3,274	$ 3,213	$ 3,486

Amount of discretionary contributions made by an employer to a defined contribution plan.

No definition available.

Name:	us-gaap_DefinedContributionPlanEmployerDiscretionaryContributionAmount
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration