Other comprehensive income (loss) and accumulated other comprehensive items (Tables)

9 Months Ended

Sep. 30, 2017

Comprehensive Income (Loss), Net of Tax, Attributable to Parent [Abstract]

Summary of other comprehensive income (loss) and the changes in accumulated other comprehensive items

The following tables summarize other comprehensive income (loss) and the changes in accumulated other comprehensive items for the three and nine months ended September 30, 2017:

	Unrealized Gains/(Losses) On Marketable Securities, net of tax			Foreign Currency Translation		Total Accumulated Other Comprehensive Items
Balance at June 30, 2017	$	(234	)	$	2,233	$	1,999
Other comprehensive income before reclassifications	31			983		1,014
Amounts reclassified from other comprehensive items	—			—		—
Other comprehensive income	31			983		1,014
Balance at September 30, 2017	$	(203	)	$	3,216	$	3,013

	Unrealized Gains/(Losses) On Marketable Securities, net of tax			Foreign Currency Translation			Total Accumulated Other Comprehensive Items
Balance at December 31, 2016	$	(203	)	$	(1,282	)	$	(1,485	)
Other comprehensive income before reclassifications	—			4,498			4,498
Amounts reclassified from other comprehensive items	—			—			—
Other comprehensive income	—			4,498			4,498
Balance at September 30, 2017	$	(203	)	$	3,216		$	3,013