Organization and Summary of Significant Accounting Policies - Narrative (Details)	12 Months Ended
	Dec. 31, 2019 USD ($) segment shares	Dec. 31, 2018 USD ($) shares	Jan. 01, 2019 USD ($)
Accounting Policies [Abstract]
Number of operating segments | segment	1
Concentration Risk [Line Items]
Lease liabilities—total (discounted)	$ 22,513,000
Right of use lease asset	$ 21,491,000
Revenues, percent	100.00%	100.00%
Share-based compensation arrangement by share-based payment award, award requisite service period	4 years
Common stock, shares authorized | shares	500,000,000	500,000,000
Preferred stock, shares authorized | shares	10,000,000	10,000,000
Share-based compensation arrangement by share-based payment award, number of shares authorized | shares	18,014,777
Restricted cash	$ 0	$ 0
Accounts receivable, allowance for credit loss	3,400,000	1,300,000
Accounts receivable, allowance for credit loss, writeoff	$ (3,300,000)	$ (600,000)
Customer one | Customer concentration risk, accounts receivable
Concentration Risk [Line Items]
Revenues, percent	23.00%	21.00%
Customer two | Customer concentration risk, accounts receivable
Concentration Risk [Line Items]
Revenues, percent	17.00%	13.00%
Measurement input, expected dividend payment
Concentration Risk [Line Items]
Alternative investment, measurement input	0
Accounting Standards Update 2016-02
Concentration Risk [Line Items]
Lease liabilities—total (discounted)			$ 15,600,000
Right of use lease asset			$ 14,300,000