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Subsequent Events	12 Months Ended
Subsequent Events	Dec. 31, 2018
Subsequent Events [Abstract]
Subsequent Events	Subsequent Events On March 20, 2019, a class action was filed in the Superior Court of the State of California, Santa Clara County, by the Lincolnshire Police Pension Fund, individually and on behalf of all others similarly situated (“Plaintiff”), against the Company, certain of its directors and officers, and the underwriters of the Company’s IPO in July 2018. The Plaintiff alleges violations of Sections 11 and 15 of the Securities Act of 1933, as amended, in connection with the purchase of the Company’s common stock pursuant or traceable to the Form S-1 Registration Statement and Prospectus issued in connection with the Company’s IPO. There have been no other subsequent events that occurred during the period subsequent to the date of these financial statements that would require adjustment to or disclosure in the financial statements as presented.