ACCUMULATED OTHER COMPREHENSIVE LOSS (Tables)

12 Months Ended

Dec. 31, 2017

Equity [Abstract]

Schedule of Reclassification of Accumulated Other Comprehensive Income (Loss)

The changes in accumulated other comprehensive loss by component and related tax effects for the years ended December 31, 2017, 2016 and 2015 were as follows (in thousands):    

	Foreign Currency Translation Adjustments			Unrealized (Losses) Gains on Available-for-Sale Securities			Unfunded Pension Liability			Total
Balance at January 1, 2015	$	(108,889	)	$	—		$	(1,953	)	$	(110,842	)
Other comprehensive loss before reclassifications	(144,050		)	—			(7		)	(144,057		)
Amounts reclassified out of accumulated other comprehensive loss	—			—			—			—
Tax effects	—			—			7			7
Other comprehensive loss	(144,050		)	—			—			(144,050		)
Balance at December 31, 2015	$	(252,939	)	$	—		$	(1,953	)	$	(254,892	)
Other comprehensive income (loss) before reclassifications	23,967			(535		)	216			23,648
Amounts reclassified out of accumulated other comprehensive loss	—			—			—			—
Tax effects	16,761			214			(57		)	16,918
Other comprehensive income (loss)	40,728			(321		)	159			40,566
Balance at December 31, 2016	$	(212,211	)	$	(321	)	$	(1,794	)	$	(214,326	)
Other comprehensive income before reclassifications	41,636			184			146			41,966
Amounts reclassified out of accumulated other comprehensive loss	—			222			—			222
Tax effects	—			(231		)	(38		)	(269		)
Other comprehensive income	41,636			175			108			41,919
Balance at December 31, 2017	$	(170,575	)	$	(146	)	$	(1,686	)	$	(172,407	)

The amounts reclassified out of accumulated other comprehensive loss into the consolidated statement of operations, with presentation location, during the year ended December 31, 2017 were as follows (in thousands):

Other Comprehensive Income Components	December 31, 2017			Location
Unrealized (losses) gains on available-for-sale securities	$	(222	)	Other (expense) income, net