Consolidated Statements of Comprehensive Income - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Net Income (Loss) Attributable to Parent [Abstract]
NET INCOME	$ 56,463	$ 39,133	$ 92,277	$ 73,072
Other comprehensive income (loss), net of taxes:
Foreign currency translation adjustment	(24,186)	4,462	(16,315)	8,600
Unrealized gain (loss) on interest rate risk management activities, net of tax	3,778	(581)	13,183	2,076
Unrealized gain (loss) arising during the period, net of tax benefit (provision) of ($1,078), $1,542, ($3,570), and $1,308, respectively	3,414	(2,570)	11,305	(2,180)
OTHER COMPREHENSIVE INCOME (LOSS), NET OF TAXES	(20,408)	3,881	(3,132)	10,676
COMPREHENSIVE INCOME	36,055	43,014	89,145	83,748
SG&A
Other comprehensive income (loss), net of taxes:
Reclassification adjustment for loss included in interest expense, net of tax benefit of $336, $1,193, $813, and $2,554, respectively	(698)	0	(698)	0
Interest Expense
Other comprehensive income (loss), net of taxes:
Reclassification adjustment for loss included in interest expense, net of tax benefit of $336, $1,193, $813, and $2,554, respectively	$ 1,062	$ 1,989	$ 2,576	$ 4,256