Stockholders' Equity And Stock-Based Compensation (Tables)	12 Months Ended
Dec. 31, 2021
Stockholders' Equity [Line Items]
Summary Of Stock Warrant Activity	Weighted Average Weighted Remaining Number of Average Contractual Shares Exercise Price Life (in Years)Warrants outstanding at December 31, 2020 612,310 $ 6.40 0.26 Issued — — Exercised (585,069) 6.47 Expired/Redeemed (27,241) 3.56 Warrants outstanding and exercisable at December 31, 2021 — $ — —
Summary Of Stock-Based Compensation Expense	Year Ended December 31, 2021 2020 2019Cost of revenues $ 129 $ — $ —Research and development 5,211 4,013 3,821Sales and marketing 2,749 1,187 883General and administrative 6,512 4,875 6,583Total stock-based compensation expense $ 14,601 $ 10,075 $ 11,287
Summary Of Stock-Based Compensation Expense By Type	Year Ended December 31, 2021 2020 2019Time-based options $ 9,235 $ 8,739 $ 10,895Performance options 4,840 133 100RSU — 86 —ESPP 526 1,117 292Total stock-based compensation expense $ 14,601 $ 10,075 $ 11,287
Time-Based Options [Member]
Stockholders' Equity [Line Items]
Summary Of Stock Option Activity	Stock Options Outstanding Number ‎of shares Weighted‎average‎exercise price Weighted‎average‎remaining life‎(in years)Balances — December 31, 2020 4,055,352 $15.04 6.37 Options granted 1,023,333 22.04 Options exercised (53,731) 11.47 Options canceled (162,975) 16.94 Options expired (65,263) 19.92 Balances — December 31, 2021 4,796,716 $16.44 7.05 Exercisable — December 31, 2021 3,018,902 $16.38 6.05
Performance Shares [Member]
Stockholders' Equity [Line Items]
Summary Of Stock Option Activity	Stock Options Outstanding Number ‎of shares Weighted‎average‎exercise price Weighted‎average‎remaining life‎(in years)Balances — December 31, 2020 983,842 $11.06 8.25 Options granted 216,255 22.41 Options exercised — — Options canceled — — Options expired — — Balances — December 31, 2021 1,200,097 $13.11 8.44 Exercisable — December 31, 2021 293,172 $11.64 8.08
Stock Options [Member]
Stockholders' Equity [Line Items]
Summary Of Stock Option Activity	Weighted Weighted Average Average Remaining Number of Exercise Contractual Shares Price Life (in Years)Balances - December 31, 2020 5,039,194 $ 14.26 7.83 Options granted 1,239,588 22.10 Options exercised (53,731) 11.47 Options canceled (162,975) 16.94 Options expired (65,263) 19.92 Balances - December 31, 2021 5,996,813 $ 15.77 7.33Stock options exercisable at December 31, 2021 3,312,074 $ 15.96 6.23
Schedule Of Fair Value Of Employee Stock Options	Year Ended December 31, 2021 2020 2019Expected term in years 5.3 - 6.1 5.3 - 6.1 0.4 - 6.1Expected volatility 78% 70% 70%Risk-free interest rate 0.9 - 1.4% 0.3 - 0.5% 1.4 - 2.6%Dividend yield — — —
2017 Employee Stock Purchase Plan [Member]
Stockholders' Equity [Line Items]
Schedule Of Fair Value Of Employee Stock Options	Year Ended December 31, 2021 2020 2019Expected term in years 0.5 - 1.0 0.5 - 1.0 0.5 - 1.0Expected volatility 78% 70% 70%Risk-free interest rate 0.06% - 0.1% 0.1% - 1.0% 1.7% - 2.6%Dividend yield — — —

Stockholders' Equity [Line Items]

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Tabular disclosure of cost recognized for award under share-based payment arrangement by plan. Includes, but is not limited to, related tax benefit.

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Tabular disclosure of allocation of amount expensed and capitalized for award under share-based payment arrangement to statement of income or comprehensive income and statement of financial position. Includes, but is not limited to, corresponding line item in financial statement.

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Tabular disclosure of activity for award under share-based payment arrangement. Includes, but is not limited to, outstanding award at beginning and end of year, granted, exercised, forfeited, and weighted-average grant date fair value.

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Tabular disclosure of the significant assumptions used during the year to estimate the fair value of stock options, including, but not limited to: (a) expected term of share options and similar instruments, (b) expected volatility of the entity's shares, (c) expected dividends, (d) risk-free rate(s), and (e) discount for post-vesting restrictions.

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Tabular disclosure of warrants or rights issued. Warrants and rights outstanding are derivative securities that give the holder the right to purchase securities (usually equity) from the issuer at a specific price within a certain time frame. Warrants are often included in a new debt issue to entice investors by a higher return potential. The main difference between warrants and call options is that warrants are issued and guaranteed by the company, whereas options are exchange instruments and are not issued by the company. Also, the lifetime of a warrant is often measured in years, while the lifetime of a typical option is measured in months. Disclose the title of issue of securities called for by warrants and rights outstanding, the aggregate amount of securities called for by warrants and rights outstanding, the date from which the warrants or rights are exercisable, and the price at which the warrant or right is exercisable.

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