Commitment and Contingencies - Additional Information (Details) $ in Millions	12 Months Ended
	Dec. 31, 2019 USD ($) Client
Loss Contingencies [Line Items]
Percentage of identified clients	0.50%
Refund of additional amount charged to clients | $	$ 2.5
Maximum [Member]
Loss Contingencies [Line Items]
Number of identified clients | Client	250