CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) $ in Thousands	3 Months Ended
	Jun. 30, 2017	Jun. 30, 2016
Income Statement [Abstract]
Revenues	$ 212,514	$ 214,801
Cost of revenue	113,960	122,819
Gross profit	98,554	91,982
Operating expenses:
Research and development	23,563	18,652
Sales and marketing	48,440	37,348
General and administrative	32,356	27,506
Gains, losses and other items, net	(98)	314
Total operating expenses	104,261	83,820
Income (loss) from operations	(5,707)	8,162
Other income (expense):
Interest expense	(2,342)	(1,812)
Other, net	(672)	307
Total other expense	(3,014)	(1,505)
Income (loss) before income taxes	(8,721)	6,657
Income taxes (benefit)	(7,421)	2,681
Net earnings (loss)	$ (1,300)	$ 3,976
Basic earnings (loss) per share:
Basic earnings (loss) per share	$ (0.02)	$ 0.05
Diluted earnings (loss) per share:
Diluted earnings (loss) per share	$ (0.02)	$ 0.05