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Components of Accumulated Other Comprehensive Loss
6 Months Ended
Jun. 30, 2020
Accumulated Other Comprehensive Income (Loss), Net of Tax [Abstract]  
Components of Accumulated Other Comprehensive Loss Components of Accumulated Other Comprehensive Loss
Components of AOCL:
June 30, 2020
December 31, 2019
Defined benefit plan liabilities
$(113.1) $(115.9) 
Unrealized gain (loss) on financial instruments
2.2  2.3  
Other comprehensive loss before income tax effect
(110.9) (113.6) 
Income tax effect (1)
3.3  3.8  
Accumulated other comprehensive loss
$(107.6) $(109.8) 
(1) The allocation of the income tax effect to the components of other comprehensive loss is as follows:
June 30, 2020
December 31, 2019
Defined benefit plan liabilities$3.7  $4.3  
Unrealized loss on financial instruments(0.4) (0.4) 

The following table summarizes the changes in the accumulated balances for each component of AOCL:
Defined benefit plan and other postretirement liabilitiesUnrealized gain (loss) on financial instrumentsTotal, net of tax
Balance, April 1, 2020
$(110.3) $1.9  $(108.4) 
Net amount reclassified to net income (loss)0.8  —  0.8  
Balance, June 30, 2020
$(109.5) $1.9  $(107.6) 
Balance, April 1, 2019
$(101.7) $2.0  $(99.7) 
Net amount reclassified to net income1.0  0.0  1.0  
Balance, June 30, 2019
$(100.7) $2.0  $(98.7) 
Balance, December 31, 2019$(111.7) $1.9  $(109.8) 
Net amount reclassified to net loss2.2  0.0  2.2  
Balance, June 30, 2020
$(109.5) $1.9  $(107.6) 
Balance, December 31, 2018
$(100.7) $2.0  $(98.7) 
Impact of ASU 2018-02 (1)
(1.3) —  (1.3) 
Net amount reclassified to net income (loss)1.3  (0.1) 1.3  
Balance, June 30, 2019
$(100.7) $2.0  $(98.7) 
(1) ASU 2018-02. See Note 7. Income Taxes for further information regarding our adoption of ASU 2018-02.
Reclassifications out of AOCL were included in the consolidated statements of operations as follows:
Three months ended June 30,
Six months ended June 30,
AOCL ComponentsLocation
2020
2019
2020
2019
Defined benefit plan and other postretirement liabilitiesCost of goods sold$0.4  $0.3  $1.5  $0.9  
Selling, general and administrative expenses0.2  (0.2) 0.4  (0.6) 
Other operating expense, net0.5  1.2  0.9  1.5  
Income tax effect(0.3) (0.3) (0.6) (0.5) 
Net of tax$0.8  $1.0  $2.2  $1.3  
Unrealized loss on financial instrumentsCost of goods sold$0.0  $0.0  $0.0  $(0.1) 
Income tax effect0.0  0.0  0.0  0.0  
Net of tax$0.0  $0.0  $0.0  $(0.1)