Retirement Savings Plan (Details) - USD ($) $ in Thousands		12 Months Ended
Jan. 01, 2019	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Retirement Benefits [Abstract]
Employer contribution matching percentage	3.00%		3.00%
Employee vesting period in the retirement saving plan	2 years		3 years
Company defined contribution plan		$ 913	$ 647	$ 764

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