Annual report pursuant to Section 13 and 15(d)

Selected Quarterly Financial Data (Details)

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Selected Quarterly Financial Data (Details) - USD ($)
$ / shares in Units, $ in Thousands
3 Months Ended 12 Months Ended
Dec. 31, 2019
Sep. 30, 2019
Jun. 30, 2019
Mar. 31, 2019
Dec. 31, 2018
Sep. 30, 2018
Jun. 30, 2018
Mar. 31, 2018
Dec. 31, 2019
Dec. 31, 2018
Dec. 31, 2017
Quarterly Financial Information Disclosure [Abstract]                      
Net revenue $ 70,018 $ 80,020 $ 82,507 $ 84,635 $ 87,627 $ 85,010 $ 101,533 $ 110,827 $ 317,180 $ 384,997 $ 420,318
Gross profit 36,624 41,904 44,080 45,077 45,900 43,876 56,330 62,668 167,685 208,774 207,963
Net loss $ (8,104) $ (4,714) $ (2,229) $ (4,851) $ 311 $ (13,935) $ (14,422) $ 1,847 $ (19,898) $ (26,199) $ (9,187)
Earnings Per Share, Basic $ (0.11) $ (0.07) $ (0.03) $ (0.07) $ 0.00 $ (0.20) $ (0.21) $ 0.03 $ (0.28) $ (0.38) $ (0.14)
Earnings Per Share, Diluted $ (0.11) $ (0.07) $ (0.03) $ (0.07) $ 0.00 $ (0.20) $ (0.21) $ 0.03 $ (0.28) $ (0.38) $ (0.14)