Summary of Significant Accounting Policies - Schedule of Revenue and Accounts Receivable for Each Significant Customer (Details) - Customer Concentration Risk	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017
Revenue | Customer A
Concentration risk
Concentration risk percentage	13.00%	16.00%
Revenue | Customer B
Concentration risk
Concentration risk percentage	11.00%
Revenue | Customer B | Maximum
Concentration risk
Concentration risk percentage		10.00%
Revenue | Customer C
Concentration risk
Concentration risk percentage	10.00%
Revenue | Customer C | Maximum
Concentration risk
Concentration risk percentage		10.00%
Revenue | Customer D
Concentration risk
Concentration risk percentage		15.00%
Revenue | Customer D | Maximum
Concentration risk
Concentration risk percentage	10.00%
Revenue | Customer E | Maximum
Concentration risk
Concentration risk percentage	10.00%	10.00%
Revenue | Customer F | Maximum
Concentration risk
Concentration risk percentage	10.00%	10.00%
Revenue | Customer G | Maximum
Concentration risk
Concentration risk percentage	10.00%	10.00%
Revenue | Customer H | Maximum
Concentration risk
Concentration risk percentage	10.00%	10.00%
Revenue | Customer I | Maximum
Concentration risk
Concentration risk percentage	10.00%	10.00%
Accounts Receivable, net | Customer A | Maximum
Concentration risk
Concentration risk percentage	10.00%	10.00%
Accounts Receivable, net | Customer B | Maximum
Concentration risk
Concentration risk percentage	10.00%	10.00%
Accounts Receivable, net | Customer C
Concentration risk
Concentration risk percentage		11.00%
Accounts Receivable, net | Customer C | Maximum
Concentration risk
Concentration risk percentage	10.00%
Accounts Receivable, net | Customer D | Maximum
Concentration risk
Concentration risk percentage	10.00%	10.00%
Accounts Receivable, net | Customer E
Concentration risk
Concentration risk percentage	23.00%
Accounts Receivable, net | Customer E | Maximum
Concentration risk
Concentration risk percentage		10.00%
Accounts Receivable, net | Customer F
Concentration risk
Concentration risk percentage	21.00%
Accounts Receivable, net | Customer F | Maximum
Concentration risk
Concentration risk percentage		10.00%
Accounts Receivable, net | Customer G
Concentration risk
Concentration risk percentage	11.00%	15.00%
Accounts Receivable, net | Customer H
Concentration risk
Concentration risk percentage	11.00%
Accounts Receivable, net | Customer H | Maximum
Concentration risk
Concentration risk percentage		10.00%
Accounts Receivable, net | Customer I
Concentration risk
Concentration risk percentage		10.00%
Accounts Receivable, net | Customer I | Maximum
Concentration risk
Concentration risk percentage	10.00%