Accumulated Other Comprehensive Income (Loss) (Tables)

6 Months Ended

Jun. 30, 2018

Equity [Abstract]

Accumulated Other Comprehensive Income (Loss)

The following table summarizes the changes in accumulated other comprehensive income (loss) by component:

				Unrealized Holding Gains (Losses), Net of Tax
	Foreign Currency Translation Adjustment			On Available-For-Sale Debt Securities			On Equity Securities			On Foreign Currency Forward Contracts			Total
	(in thousands)
Balance at December 31, 2017	$	(21,031	)	$	(594	)	$	25,069		$	(15,016	)	$	(11,572	)
Other comprehensive income before reclassifications	6,141			(87		)	—			15,352			21,406
Amounts reclassified from accumulated other comprehensive income (loss)	—			—			—			9,681			9,681
Net current period other comprehensive income (loss)	$	6,141		$	(87	)	$	—		$	25,033		$	31,087
Amounts reclassified to accumulated deficit pursuant to adoption of new accounting standard	949			—			(25,069		)	—			(24,120		)
Balance at June 30, 2018	$	(13,941	)	$	(681	)	$	—		$	10,017		$	(4,605	)

				Unrealized Holding Gains (Losses), Net of Tax
	Foreign Currency Translation Adjustment			On Available-For-Sale Debt Securities			On Equity Securities			On Foreign Currency Forward Contracts			Total
	(in thousands)
Balance at December 31, 2016	$	(7,862	)	$	(10	)	$	17,531		$	11,514		$	21,173
Other comprehensive (loss) income before reclassifications	(7,253		)	(236		)	(13,511		)	(17,215		)	(38,215		)
Amounts reclassified from accumulated other comprehensive income (loss)	—			—			—			(4,711		)	(4,711		)
Net current period other comprehensive (loss) income	$	(7,253	)	$	(236	)	$	(13,511	)	$	(21,926	)	$	(42,926	)
Balance at June 30, 2017	$	(15,115	)	$	(246	)	$	4,020		$	(10,412	)	$	(21,753	)