The components of accumulated other comprehensive income (loss) are as follows (in thousands):

							Total
	Net Unrealized Gain			Cumulative			Accumulated
	(Loss) on Marketable			Translation			Other Comprehensive
	Investments			Adjustment			Income (Loss)
Balance at January 1, 2017	$	(83	)	$	(7,490	)	$	(7,573	)
Foreign currency translation		—			3,304			3,304
Unrealized gain on investments, net of tax of $15		24			—			24
Balance at June 30, 2017	$	(59	)	$	(4,186	)	$	(4,245	)

							Total
	Net Unrealized Gain			Cumulative			Accumulated
	(Loss) on Marketable			Translation			Other Comprehensive
	Investments			Adjustment			Income (Loss)
Balance at April 1, 2017	$	(66	)	$	(6,700	)	$	(6,766	)
Foreign currency translation		—			2,514			2,514
Unrealized gain on investments, net of tax of $4		7			—			7
Balance at June 30, 2017	$	(59	)	$	(4,186	)	$	(4,245	)

							Total
	Net Unrealized Gain			Cumulative			Accumulated
	(Loss) on Marketable			Translation			Other Comprehensive
	Investments			Adjustment			Income (Loss)
Balance at January 1, 2016	$	(100	)	$	(4,726	)	$	(4,826	)
Foreign currency translation		—			52			52
Unrealized gain on investments, net of tax of $79		120			—			120
Balance at June 30, 2016	$	20		$	(4,674	)	$	(4,654	)

						Total
	Net Unrealized Gain		Cumulative			Accumulated
	(Loss) on Marketable		Translation			Other Comprehensive
	Investments		Adjustment			Income (Loss)
Balance at April 1, 2016	$	17	$	(3,245	)	$	(3,228	)
Foreign currency translation		—		(1,429	)		(1,429	)
Unrealized gain on investments, net of tax of $3		3		—			3
Balance at June 30, 2016	$	20	$	(4,674	)	$	(4,654	)