RETIREMENT AND DEFERRED COMPENSATION PLANS (Tables)

3 Months Ended

Mar. 31, 2019

RETIREMENT AND DEFERRED COMPENSATION PLANS

Components of net periodic benefit cost

	Domestic Plans				Foreign Plans
Three Months Ended March 31,	2019		2018		2019		2018
Service cost	$	2,773	$	2,849	$	1,460	$	1,531
Interest cost		1,845		1,720		501		472
Expected return on plan assets		(3,094)		(2,814)		(592)		(679)
Amortization of net loss		489		1,218		363		446
Amortization of prior service cost		—		—		113		129
Net periodic benefit cost	$	2,013	$	2,973	$	1,845	$	1,899