Equity (Details) - USD ($)
$ / shares in Units, $ in Thousands |
|
12 Months Ended |
|
|
|
|
|
Jul. 20, 2018 |
Dec. 31, 2018 |
Jun. 30, 2018 |
Apr. 30, 2018 |
Feb. 28, 2018 |
Jan. 31, 2018 |
Dec. 31, 2017 |
| Equity |
|
|
|
|
|
|
|
| Common stock, authorized (in shares) |
150,000,000
|
150,000,000
|
79,000,000
|
78,800,000
|
75,000,000
|
65,000,000
|
65,000,000
|
| Shares authorized |
160,000,000
|
|
|
|
|
|
|
| Common stock, par value (in dollars per share) |
$ 0.001
|
$ 0.001
|
|
|
|
|
$ 0.001
|
| Preferred stock, share authorized (in shares) |
10,000,000
|
10,000,000
|
|
|
|
|
0
|
| Preferred stock, par value (in dollars per share) |
$ 0.001
|
$ 0.001
|
|
|
|
|
$ 0.001
|
| Net proceeds after deducting underwriting discounts and commissions and other offering costs |
|
$ 257,866
|
|
|
|
|
|
| Common stock |
|
|
|
|
|
|
|
| Equity |
|
|
|
|
|
|
|
| Stock Issued During Period, Shares, New Issues |
|
12,055,450
|
|
|
|
|
|
| Number of shares converted into number of common stock |
51,845,438
|
|
|
|
|
|
|
| IPO |
|
|
|
|
|
|
|
| Equity |
|
|
|
|
|
|
|
| Stock Issued During Period, Shares, New Issues |
12,055,450
|
|
|
|
|
|
|
| Net proceeds after deducting underwriting discounts and commissions and other offering costs |
$ 254,300
|
|
|
|
|
|
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| Overallotment |
|
|
|
|
|
|
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| Equity |
|
|
|
|
|
|
|
| Stock Issued During Period, Shares, New Issues |
1,572,450
|
|
|
|
|
|
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