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SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Tables)

12 Months Ended

Dec. 31, 2018

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, 2015			$	(3,481)		$	(223)		$	—		$	(3,704)
Adjust funded status of pension plan, net of tax of $0.7 million				5,251			—			—			5,251
Foreign currency translation adjustment				—			(687)			—			(687)
Unrealized gain on marketable securities				—			—			868			868
Balance at December 31, 2016				1,770			(910)			868			1,728
Adjust funded status of pension plan, 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 plan, 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)

Schedule of reclassification from accumulated other comprehensive income

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

				2018			2017			2016
Pension and other postretirement benefit plans			$	54		$	716		$	1,300
Realized gains on marketable securities				—			(1,044)			—
Total			$	54		$	(328)		$	1,300

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

					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

		December 31, 2017
					Significant Other
		Quoted Prices in			Observable
		Active Markets			Inputs
Description		(Level 1)			(Level 2)			Total
Certificates of deposit		$	—		$	391		$	391
Money market funds			2,894			—			2,894
Short term investments			555			6,521			7,076
Commercial paper			—			49,954			49,954
Interest rate swap			—			52			52
Total assets and liabilities measured at fair value		$	3,449		$	56,918		$	60,367

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,
		2018		2017		2015
Basic weighted-average shares of common stock outstanding		15,988		16,138		16,131
Stock options		54		72		96
Diluted weighted-average shares of common stock outstanding		16,042		16,210		16,227

Schedule of anti-dilutive potential shares that were excluded from the computation of diluted weighted average shares outstanding

The following notes the number of potential shares of common stock not included in the above calculation because the effects of such were anti‑dilutive (in thousands of shares):

		For the Year Ended
		December 31,
		2018		2017		2016
Stock options		5		7		5
Total		5		7		5

Accounting Standards Update 2016-15 and 2018-18

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

The adoption of ASU 2016-15 and ASU 2016-18 impacted the Company’s cash flows for the years ended December 31, 2017 and December 31, 2016 as indicated below (amounts in thousands):

		Statement of Cash flows
		Year ended December 31, 2017							Year ended December 31, 2016
		Reported		Change		Under previous guidance			Reported		Change		Under previous guidance
Net cash provided by operating activities	$	145,725	$	—	$	145,725		$	111,656	$	—	$	111,656
Net cash used in investing activities		(172,318)		5,525		(166,793)			(296,580)		(12,108)		(308,688)
Net cash used in financing activities		(42,101)		1,178		(40,923)			75,334		—		75,334
Effect of foreign currency exchange rates on total cash		226		—		226			(626)		—		(626)
Net change in total cash	$	(68,468)	$	6,703	$	(61,765)		$	(110,216)	$	(12,108)	$	(122,324)
Total cash, beginning of period		288,358		(18,637)		269,721			398,574		(6,529)		392,045
Total cash, end of period	$	219,890	$	(11,934)	$	207,956		$	288,358	$	(18,637)	$	269,721

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