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Commitments and Contingencies (Tables)
 12 Months Ended
Dec. 31, 2018
Commitments and Contingencies Disclosure [Abstract]  
Rollforward of Tank Recall Reserve
The following table represents changes in our consolidated warranty reserve:
 
Year Ended December 31,
 
2018
 
2017
 
2016
Beginning Balance
$
11.6

 
$
11.6

 
$
9.2

Issued - Warranty Expense
5.1

 
3.1

 
5.9

Acquired - Warranty Reserve
—

 
0.9

 
—

Change in Estimate - Warranty Expense
(1.6
)
 
1.5

 
1.1

Warranty Usage
(6.2
)
 
(5.5
)
 
(4.6
)
Ending Balance
$
8.9

 
$
11.6

 
$
11.6

The following table represents the establishment of and changes in the aluminum cryobiological tank recall reserve:
Recall reserve - established April 2018
$
3.8

Reserve usage
(3.9
)
Change in estimate - expense
0.2

Balance at December 31, 2018
$
0.1