Accumulated Other Comprehensive Income (Loss) (Tables)

3 Months Ended

Mar. 31, 2017

Equity [Abstract]

Schedule of Components of Accumulated Other Comprehensive Income (Loss)

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

							Total
	Net UnrealizedGain			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		—			790			790
Unrealized gain on investments, net of tax of $11		17			—			17
Balance at March 31, 2017	$	(66	)	$	(6,700	)	$	(6,766	)

							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		—			1,481			1,481
Unrealized gain on investments, net of tax of $76		117			—			117
Balance at March 31, 2016	$	17		$	(3,245	)	$	(3,228	)