XML 54 R40.htm IDEA: XBRL DOCUMENT v3.10.0.1
Postretirement benefits (Tables) - Other Postretirement Benefit Plans, Defined Benefit [Member]
 12 Months Ended
Dec. 31, 2018
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]  
Schedule of Net Funded Status [Table Text Block]
Changes in benefit obligation and plan assets, and a reconciliation of the funded status at December 31, 2018 and 2017, are as follows: 
(in millions)
 
2018
 
2017
Change in Benefit Obligation
 
 

 
 

Benefit obligation at the beginning of the year
 
$
2.3

 
$
4.2

Interest cost
 
0.1

 
0.2

Participant contributions
 
0.6

 
0.6

Plan amendments
 
(0.2
)
 
—

Actuarial gain
 
(0.3
)
 
(1.8
)
Benefits paid
 
(0.8
)
 
(0.9
)
Benefit obligation at the end of the year
 
$
1.7

 
$
2.3

 
 
 
 
 
Change in Plan Assets
 
 

 
 

Fair value of plan assets at the beginning of the year
 
$
—

 
$
—

Participant contributions
 
0.6

 
0.6

Employer contributions
 
0.2

 
0.3

Benefits paid
 
(0.8
)
 
(0.9
)
Fair value of plan assets at the end of the year
 
$
—

 
$
—

 
 
 
 
 
Unfunded status at year end:
 
$
(1.7
)
 
$
(2.3
)

(in millions)
 
2018
 
2017
Amount recognized in consolidated balance sheet consists of:
 
 

 
 

Accrued benefit liability, current
 
$
(0.2
)
 
$
(0.3
)
Accrued benefit liability, non-current
 
(1.5
)
 
(2.0
)
Sub-total
 
(1.7
)
 
(2.3
)
Deferred tax liability
 
(1.3
)
 
(2.5
)
Accumulated other comprehensive income
 
(4.0
)
 
(3.7
)
Net amount related to postretirement benefit plans
 
$
(7.0
)
 
$
(8.5
)
 
Schedule of Net Periodic Benefit Cost Not yet Recognized [Table Text Block]
Accumulated other comprehensive income related to other postretirement benefit plans is as follows: 
(in millions)
 
2018
 
2017
Unrecognized net actuarial gains
 
$
(5.0
)
 
$
(5.8
)
Net prior service credits
 
(0.3
)
 
(0.4
)
Tax expense
 
1.3

 
2.5

Accumulated other comprehensive income, end of year
 
$
(4.0
)
 
$
(3.7
)