Acquisitions (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015
Business Acquisition [Line Items]
Goodwill acquired	$ 2,047	$ 2,323
Other goodwill adjustments [Abstract]
Goodwill impairment charges	2,600
Third Party Administrators, Inc. [Member]
Business Acquisition [Line Items]
Total consideration paid		4,100
Goodwill acquired		$ 2,300
Actuarial Designs & Solutions, Inc [Member]
Business Acquisition [Line Items]
Total consideration paid	3,000
Goodwill acquired	1,300
Columbia Ridge Capital Management, Inc [Member]
Business Acquisition [Line Items]
Total consideration paid	1,300
Goodwill acquired	$ 800