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Restructuring
 12 Months Ended
Dec. 31, 2019
Restructuring and Related Activities [Abstract]  
Restructuring Restructuring
During 2019, 2018 and 2017, we initiated and continued execution of certain business restructuring initiatives aimed at reducing our fixed cost structure and realigning our business. Initiatives during the years ended December 31, 2019, 2018 and 2017 included a reduction in hourly and salaried headcount of approximately 375 employees, 300 employees and 250 employees, respectively.
Restructuring related costs included in Selling, general and administrative expenses in the Consolidated Statements of Operations and Comprehensive Income included costs for severance and other restructuring costs as follows:
 
Years ended December 31
In millions
2019
2018
2017
Severance and related costs
$
11.7

$
13.2

$
27.3

Other
2.3

27.4

0.9

Total restructuring costs
$
14.0

$
40.6

$
28.2


Other restructuring costs primarily consist of asset impairment and various contract termination costs.
Restructuring costs by reportable segment were as follows:
 
Years ended December 31
In millions
2019
2018
2017
Aquatic Systems
$
4.2

$
15.3

$
3.6

Filtration Solutions
4.7

14.6

13.0

Flow Technologies
2.7

9.3

7.0

Other
2.4

1.4

4.6

Consolidated
$
14.0

$
40.6

$
28.2


Activity related to accrued severance and related costs recorded in Other current liabilities in the Consolidated Balance Sheets is summarized as follows:
 
Years ended December 31
In millions
2019
2018
Beginning balance
$
27.1

$
34.5

Costs incurred
11.7

13.2

Cash payments and other
(22.6
)
(20.6
)
Ending balance
$
16.2

$
27.1