ACCUMULATED OTHER COMPREHENSIVE LOSS (Tables)

12 Months Ended

Dec. 31, 2018

Equity [Abstract]

Summary of Changes in Accumulated Other Comprehensive Income (Loss) Included Within Shareholders' Equity

A summary of changes in accumulated other comprehensive loss included within shareholders’ equity is as follows (in thousands):

	Twelve Months Ended December 31, 2018														Twelve Months Ended December 31, 2017
	Foreign Currency Translation Adjustments			Foreign Currency Hedge		Defined benefit pension plans			Tax Provision			Total			Foreign Currency Translation Adjustments			Foreign Currency Hedge			Defined benefit pension plans			Tax Provision			Total
Balance at beginning of year	$	(21,366	)	$	3,246	$	(7,221	)	$	5,545		$	(19,796	)	$	(31,973	)	$	5,048		$	(10,518	)	$	8,443		$	(29,000	)
Other comprehensive income (loss)	(9,241		)	658		(638		)	(3,045		)	(12,266		)	10,607			(1,802		)	3,297			(2,898		)	9,204
Adoption of new accounting principle	—			—		—			(2,330		)	(2,330		)	—			—			—			—			—
Balance at end of year	$	(30,607	)	$	3,904	$	(7,859	)	$	170		$	(34,392	)	$	(21,366	)	$	3,246		$	(7,221	)	$	5,545		$	(19,796	)

Related Tax Effects Allocated to Each Component of Accumulated Other Comprehensive Income

The following table represents the related tax effects allocated to each component of other comprehensive income (loss) (in thousands):

	Twelve Months Ended December 31,
	2018									2017									2016
	Gross Amount			Tax Effect			Net Amount			Gross Amount			Tax Effect			Net Amount			Gross Amount			Tax Effect			Net Amount
Foreign currency translation adjustments	$	(9,241	)	$	(2,923	)	$	(12,164	)	$	10,607		$	(2,919	)	$	7,688		$	(3,849	)	$	1,351		$	(2,498	)
Foreign currency hedge	658			(162		)	496			(1,802		)	688			(1,114		)	481			(181		)	300
Defined benefit pension plans	(638		)	40			(598		)	3,297			(667		)	2,630			(10,518		)	2,090			(8,428		)
Total	$	(9,221	)	$	(3,045	)	$	(12,266	)	$	12,102		$	(2,898	)	$	9,204		$	(13,886	)	$	3,260		$	(10,626	)