Commitments and Contingencies (Details) $ in Millions	1 Months Ended	12 Months Ended
	May 31, 2011	Dec. 31, 2016 USD ($) Installment
Contractual Commitments [Abstract]
Term of applications and technology services outsourcing agreement	10 years
Sharecare [Member]
Contractual Commitments [Abstract]
Remaining payment obligation responsibility percentage		66.67%
Aggregate payments related to acquisition		$ 4.2
Number of quarterly installments | Installment		5
Payment obligation included in accrued liabilities		$ 3.3