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SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Tables)

12 Months Ended

Dec. 31, 2019

Schedule of changes in accumulated other comprehensive income (loss), by component

Changes in accumulated other comprehensive income (loss), by component, were as follows (in thousands):

​

​

​

​

​

​

​

​

​

​

​

​

​

​

​

​

Projected

​

​

​

​

​

​

​

​

​

​

Pension

​

​

​

​

​

​

​

​

​

​

​

​

​

Benefit

​

Translation

​

​

​

​

​

​

​

​

​

Obligation

​

Adjustment

​

Other

​

Total

​

​

​

​

​

​

​

​

​

​

​

​

​

​

​

Balance at December 31, 2016

​

​

$

1,770

​

$

(910)

​

$

868

​

$

1,728

​

Adjust funded status of pension plans, net of tax of $0.7 million

​

​

1,357

​

​

—

​

​

—

​

​

1,357

​

Foreign currency translation adjustment

​

​

—

​

​

1,265

​

​

—

​

​

1,265

​

Reclassifications of gains on sale of marketable securities to net income

​

​

​

—

​

​

—

​

​

(1,044)

​

​

(1,044)

​

Unrealized gain on marketable securities

​

​

​

—

​

​

—

​

​

440

​

​

440

​

Balance at December 31, 2017

​

​

$

3,127

​

$

355

​

$

264

​

$

3,746

​

Adjust funded status of pension plans, net of tax of $0.6 million

​

​

​

(840)

​

​

—

​

​

—

​

​

(840)

​

Foreign currency translation adjustment

​

​

​

—

​

​

(4,390)

​

​

—

​

​

(4,390)

​

Adoption of ASU 2016-01

​

​

​

—

​

​

—

​

​

(203)

​

​

(203)

​

Interest rate swap

​

​

​

—

​

​

—

​

​

78

​

​

78

​

Balance at December 31, 2018

​

​

​

2,287

​

​

(4,035)

​

​

139

​

​

(1,609)

​

Adjust funded status of pension plan, net of tax of $0.1 million

​

​

​

(445)

​

​

—

​

​

—

​

​

(445)

​

Foreign currency translation adjustment

​

​

​

—

​

​

(1,041)

​

​

—

​

​

(1,041)

​

Interest rate swap

​

​

​

—

​

​

—

​

​

(187)

​

​

(187)

​

Balance at December 31, 2019

​

​

$

1,842

​

$

(5,076)

​

$

(48)

​

$

(3,282)

​

​

Schedule of reclassification from accumulated other comprehensive income

Amounts reclassified from accumulated other comprehensive income to net income were as follows (in thousands):

​	​	​	​	​	​	​	​	​	​	​
​	​	​	​	2019	​	​	2018	​	​	2017
Pension and other postretirement benefit plans	​	​	$	(64)	​	$	54	​	$	716
Realized gains on marketable securities	​	​	​	—	​	​	—	​	​	(1,044)
Total	​	​	$	(64)	​	$	54	​	$	(328)

​

Schedule of assets and liabilities of the Company measured at fair value on a recurring basis

​

​

​

​

​

​

​

​

​

​

​

​

​

​

​

​

December 31, 2019

​

​

Significant Other

​

​

Quoted Prices in

​

Observable

​

Unobservable

​

​

​

​

​

Active Markets

​

Inputs

​

Inputs

​

​

​

Description

​

(Level 1)

​

(Level 2)

​

(Level 3)

​

Total

Certificates of deposit

​

$

—

​

$

380

​

$

—

​

$

380

Money market funds

​

​

2,329

​

​

—

​

​

—

​

​

2,329

Short term investments

​

​

416

​

​

—

​

​

—

​

​

416

Other investments

​

​

—

​

​

—

​

​

12,700

​

​

12,700

Interest rate swap

​

​

—

​

​

(56)

​

​

—

​

​

(56)

Total assets and liabilities measured at fair value

​

$

2,745

​

$

324

​

$

12,700

​

$

15,769

​

​	​	​	​	​	​	​	​	​	​
​	​	December 31, 2018
	​	Significant Other
​	​	Quoted Prices in		​	Observable		​	​	​
​	​	Active Markets		​	Inputs		​	​	​
Description	​	(Level 1)		​	(Level 2)		​	Total
Certificates of deposit	​	$	—	​	$	380	​	$	380
Money market funds	​	​	2,266	​	​	—	​	​	2,266
Short term investments	​	​	393	​	​	—	​	​	393
Commercial paper	​	​	—	​	​	13,972	​	​	13,972
Interest rate swap	​	​	—	​	​	140	​	​	140
Total assets and liabilities measured at fair value	​	$	2,659	​	$	14,492	​	$	17,151

Schedule of reconciliation from basic to diluted weighted average common shares outstanding

The reconciliation from basic to diluted weighted average shares of Common Stock outstanding is as follows (in thousands):

​	​	​	​	​	​	​	​
​	​	Year ended December 31,					​
​		2019		2018		2017
Basic weighted-average shares of common stock outstanding		15,983	​	15,988	​	16,138	​
Stock options		—	​	54	​	72	​
Diluted weighted-average shares of common stock outstanding		15,983	​	16,042	​	16,210	​

Accounting Standards Update 2016-15 and 2018-18

Summary of changes to the Company's financial statements as a result of the adoption

​

​	​	​	​	​	​	​	​	​	​
​	​	Statement of Cash flows							​
​	​	​	​	​	​	​	​	​	​
​	​	Year ended December 31, 2017							​
​	​	Reported	​	​	Change	​	​	Under previous guidance	​
Net cash provided by operating activities	$	145,725	​	$	—	​	$	145,725	​
Net cash used in investing activities	​	(172,318)	​	​	5,525	​	​	(166,793)	​
Net cash used in financing activities	​	(42,101)	​	​	1,178	​	​	(40,923)	​
Effect of foreign currency exchange rates on total cash	​	226	​	​	—	​	​	226	​
Net change in total cash	$	(68,468)	​	$	6,703	​	$	(61,765)	​
Total cash, beginning of period	​	288,358	​	​	(18,637)	​	​	269,721	​
Total cash, end of period	$	219,890	​	$	(11,934)	​	$	207,956	​
​	​	​	​	​	​	​	​	​	​

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