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ACCUMULATED OTHER COMPREHENSIVE LOSS (Tables)
 12 Months Ended
Dec. 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 January 1, 2018,

   net of tax

 

$

(258

)

 

$

(11,169

)

 

$

(37

)

 

$

(11,464

)

 

 

Other comprehensive gain (loss)

   before reclassification

 

 

268

 

 

 

(6,690

)

 

 

(9

)

 

 

(6,431

)

 

 

 

Reclassification to net income (1)

 

 

—

 

 

 

1,661

 

 

 

—

 

 

 

1,661

 

 

Selling, general and administrative,

research and development and

cost of sales

Change during period

 

 

268

 

 

 

(5,029

)

 

 

(9

)

 

 

(4,770

)

 

 

Balance December 31, 2018,

   net of tax

 

 

10

 

 

 

(16,198

)

 

 

(46

)

 

 

(16,234

)

 

 

Other comprehensive gain (loss)

   before reclassification

 

 

181

 

 

 

(3,492

)

 

 

—

 

 

 

(3,311

)

 

 

 

 

Reclassification to net income (1)

 

 

—

 

 

 

2,523

 

 

 

25

 

 

 

2,548

 

 

Selling, general and administrative,

research and development and

cost of sales

Change during period

 

 

181

 

 

 

(969

)

 

 

25

 

 

 

(763

)

 

 

Balance December 31, 2019,

   net of tax

 

 

191

 

 

 

(17,167

)

 

 

(21

)

 

 

(16,997

)

 

 

Other comprehensive loss

   before reclassification

 

 

(100

)

 

 

(21,464

)

 

 

(14

)

 

 

(21,578

)

 

 

 

 

Reclassification to net income (1)

 

 

—

 

 

 

2,556

 

 

 

—

 

 

 

2,556

 

 

Selling, general and administrative,

research and development and

cost of sales

Change during period

 

 

(100

)

 

 

(18,908

)

 

 

(14

)

 

 

(19,022

)

 

 

Balance December 31, 2020,

   net of tax

 

$

91

 

 

$

(36,075

)

 

$

(35

)

 

$

(36,019

)

 

 

 

(1)

The Company reclassified amortization of prior service cost, actuarial loss and plan amendment cost for its retirement plan from accumulated other comprehensive loss to net income of $2.6 million, $2.5 million and $1.7 million for the years ended December 31, 2020, 2019 and 2018, respectively.

(2)

Refer to Note 15: Employee Retirement Plans