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Acquisitions (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Business Acquisitions [Abstract]
Goodwill acquired	$ 5,772	$ 0
Alliance Benefit Group of Illinois, Inc. [Member]
Business Acquisitions [Abstract]
Total consideration paid	9,100
Goodwill acquired	5,800
Contingent consideration, liability	$ 5,100
Retirement Plan Services, LLC [Member]
Business Acquisitions [Abstract]
Total consideration paid			$ 13,000
Goodwill acquired			6,700
Contingent consideration, liability			$ 5,100

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- Definition

Amount of consideration transferred, consisting of acquisition-date fair value of assets transferred by the acquirer, liabilities incurred by the acquirer, and equity interest issued by the acquirer.

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Amount of liability recognized arising from contingent consideration in a business combination.

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