Unaudited Condensed Consolidated Statements of Comprehensive Income (Loss) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2016	Dec. 31, 2015
Net income	$ 5,100	$ 2,286	$ 12,054	$ 8,544
Foreign currency translation adjustments	(6,015)	(3,027)	(8,403)	534
Changes in market value of investments:
Changes in unrealized gains (losses), net of income taxes of $(44) and $32 for the three and nine months ended December 31, 2016, respectively, and net of income taxes of $(24) and $(226) for the three and nine months ended December 31, 2015, respectively	(66)	(35)	66	(337)
Reclassification adjustment for net losses (gains) realized in net income, net of income taxes of $0 and $(19) for the three and nine months ended December 31, 2016, respectively, and net of income taxes of $3 and $185 for the three and nine months ended December 31, 2015, respectively		4	(31)	276
Net change in market value of investments	(66)	(31)	35	(61)
Total comprehensive income (loss)	$ (981)	$ (772)	$ 3,686	$ 9,017