ACCUMULATED OTHER COMPREHENSIVE INCOME (LOSS)

12 Months Ended

Dec. 31, 2020

ACCUMULATED OTHER COMPREHENSIVE INCOME (LOSS) [ABSTRACT]

ACCUMULATED OTHER COMPREHENSIVE INCOME (LOSS)

(17)ACCUMULATED OTHER COMPREHENSIVE INCOME (LOSS)

The following table presents changes in the accumulated balance for each component of Other comprehensive income (loss), including current period other comprehensive income (loss) and reclassifications out of accumulated other comprehensive income (loss) (in thousands):

	Foreign
	Currency		Derivative
	Translation		Valuation, Net		Other, Net
	Adjustment		of Tax		of Tax		Totals
Accumulated other comprehensive income (loss) at December 31, 2017	$	(84,100)	$	(15,746)	$	(2,458)	$	(102,304)
Other comprehensive income (loss) before reclassifications		(30,068)		20,278		712		(9,078)
Amounts reclassified from accumulated other comprehensive income (loss)		—		(12,810)		(404)		(13,214)
Net current period other comprehensive (income) loss		(30,068)		7,468		308		(22,292)
Accumulated other comprehensive income (loss) at December 31, 2018	$	(114,168)	$	(8,278)	$	(2,150)	$	(124,596)
Accumulated other comprehensive income (loss) at December 31, 2018	$	(114,168)	$	(8,278)	$	(2,150)	$	(124,596)
Other comprehensive income (loss) before reclassifications		6,688		15,545		(588)		21,645
Amounts reclassified from accumulated other comprehensive income (loss)		—		(3,085)		(198)		(3,283)
Net current period other comprehensive income (loss)		6,688		12,460		(786)		18,362
Accumulated other comprehensive income (loss) at December 31, 2019	$	(107,480)	$	4,182	$	(2,936)	$	(106,234)
Accumulated other comprehensive income (loss) at December 31, 2019	$	(107,480)	$	4,182	$	(2,936)	$	(106,234)
Other comprehensive income (loss) before reclassifications		9,722		2,321		1,016		13,059
Amounts reclassified from accumulated other comprehensive income (loss)		19,619		1,928		(528)		21,019
Net current period other comprehensive income (loss)		29,341		4,249		488		34,078
Accumulated other comprehensive income (loss) at December 31, 2020	$	(78,139)	$	8,431	$	(2,448)	$	(72,156)

The following table presents the classification and amount of the reclassifications from Accumulated other comprehensive income (loss) to the Statement of Comprehensive Income (Loss) (in thousands):

							Statement of
	For the Year Ended December 31,						Comprehensive Income
	2020		2019		2018		(Loss) Classification
Derivative valuation
Loss on foreign currency forward exchange contracts	$	2,618	$	(4,228)	$	(17,548)	Revenue
Tax effect		(690)		1,143		4,738	Provision for income taxes
	$	1,928	$	(3,085)	$	(12,810)	Net income (loss)
Other
Actuarial loss on defined benefit plan	$	(588)	$	(221)	$	(446)	Cost of services
Tax effect		60		23		42	Provision for income taxes
	$	(528)	$	(198)	$	(404)	Net income (loss)