RETIREMENT AND DEFERRED COMPENSATION PLANS (Tables)

9 Months Ended

Sep. 30, 2018

RETIREMENT AND DEFERRED COMPENSATION PLANS

Components of net periodic benefit cost

	Domestic Plans				Foreign Plans
Three Months Ended September 30,	2018		2017		2018		2017
Service cost	$	2,853	$	2,426	$	1,457	$	1,447
Interest cost		1,713		1,752		445		459
Expected return on plan assets		(2,803)		(2,470)		(645)		(627)
Amortization of net loss		1,214		801		422		493
Amortization of prior service cost		—		—		122		104
Net periodic benefit cost	$	2,977	$	2,509	$	1,801	$	1,876

	Domestic Plans				Foreign Plans
Nine Months Ended September 30,	2018		2017		2018		2017
Service cost	$	8,546	$	7,279	$	4,479	$	4,166
Interest cost		5,139		5,257		1,374		1,321
Expected return on plan assets		(8,409)		(7,409)		(1,982)		(1,781)
Amortization of net loss		3,642		2,403		1,301		1,400
Amortization of prior service cost		—		—		376		296
Net periodic benefit cost	$	8,918	$	7,530	$	5,548	$	5,402