Annual report pursuant to Section 13 and 15(d)

UNAUDITED QUARTERLY FINANCIAL DATA (Details)

v3.4.0.3
UNAUDITED QUARTERLY FINANCIAL DATA (Details) - USD ($)
$ / shares in Units, $ in Thousands
3 Months Ended 12 Months Ended
Mar. 31, 2016
Dec. 31, 2015
Sep. 30, 2015
Jun. 30, 2015
Mar. 31, 2015
Dec. 31, 2014
Sep. 30, 2014
Jun. 30, 2014
Mar. 31, 2016
Mar. 31, 2015
Mar. 31, 2014
Quarterly Financial Information Disclosure [Abstract]                      
Revenue $ 120,029 $ 128,048 $ 117,025 $ 110,856 $ 147,798 $ 142,063 $ 135,106 $ 128,128 $ 475,958 $ 553,095 $ 553,165
Gross margin 54,773 56,697 46,317 46,965 62,164 65,067 61,929 55,526 204,752 244,686 239,620
Net income (loss) $ (52,402) $ (299) $ (11,227) $ (10,755) $ 12,905 $ 6,931 $ 1,248 $ (4,324) $ (74,683) $ 16,760 $ (21,474)
Basic and diluted net loss per share $ (0.20) $ 0.00 $ (0.04) $ (0.04)              
Basic net income (loss) per share         $ 0.05 $ 0.03 $ 0.00 $ (0.02) $ (0.28) $ 0.07 $ (0.09)
Diluted net income (loss) per share         $ 0.04 $ 0.03 $ 0.00 $ (0.02) $ (0.28) $ 0.06 $ (0.09)