ACCUMULATED OTHER COMPREHENSIVE LOSS (Tables)

3 Months Ended

Mar. 31, 2020

Accumulated Other Comprehensive Income Loss Net Of Tax [Abstract]

Schedule of Accumulated Other Comprehensive Loss

Amounts related to the changes in accumulated other comprehensive loss were as follows (in thousands):

	Unrealized Gain (Loss) on Available-for-Sale Securities		Net Unrealized Gain (Loss) on Retirement Plan (2)			Change in Cumulative Foreign Currency Translation Adjustment			Total			Affected Line Items in the Consolidated Statements of Income
Balance December 31, 2019, net of tax	$	191	$	(17,167	)	$	(21	)	$	(16,997	)
Other comprehensive gain    before reclassification		1,855		—			(33	)		1,822
Reclassification to net income (1)		—		638			—			638		Selling, general and administrative, research and development and cost of sales
Change during period		1,855		638			(33	)		2,460
Balance March 31, 2020, net of tax	$	2,046	$	(16,529	)	$	(54	)	$	(14,537	)

	Unrealized Gain (Loss) on Available-for-Sale Securities		Net Unrealized Gain (Loss) on Retirement Plan (2)			Change in Cumulative Foreign Currency Translation Adjustment			Total			Affected Line Items in the Consolidated Statements of Income
Balance December 31, 2018, net of tax	$	10	$	(16,198	)	$	(46	)	$	(16,234	)
Other comprehensive gain (loss)    before reclassification		47		—			33			80
Reclassification to net income (1)		—		634			—			634		Selling, general and administrative, research and development and cost of sales
Change during period		47		634			33			714
Balance March 31, 2019, net of tax	$	57	$	(15,564	)	$	(13	)	$	(15,520	)

(1) The Company reclassified amortization of prior service cost and actuarial loss for its retirement plan from accumulated other comprehensive loss to net income of $638,000 and $634,000 for the three months ended March 31, 2020 and 2019, respectively.

(2) Refer to Note 14: Supplemental Executive Retirement Plan.