BENEFIT PLANS: (Tables)

9 Months Ended

Sep. 30, 2019

Post retirement defined benefit plans and defined contribution plan

Components of net periodic benefit costs

Schedule of the components of net periodic benefit costs

The components of net periodic benefit costs for the nine months ended September 30, 2019 and 2018 are as follows (in millions):

(in millions)	2019		2018
Service cost	$	0.8	$	0.8
Interest cost		1.3		1.2
Expected return on plan assets		(2.6)		(2.7)
Amortization of prior service cost / (credit)		0.2		0.2
Amortization of net loss/(gain)		0.1		0.1
Net periodic benefit cost	$	(0.2)	$	(0.4)

Post-retirement Health care plans

Components of net periodic benefit costs

Schedule of the components of net periodic benefit costs

The components of net periodic benefit cost for the nine months ended September 30, 2019 and 2018 are as follows (in millions):

(in millions)	2019		2018
Interest cost	$	0.7	$	0.7
Amortization of net loss (gain)		(0.2)		(0.2)
Amortization of prior service cost/ (credit)		(*)		(*)
Net periodic benefit cost	$	0.5	$	0.5

(*) amount is lower than $0.1 million