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401(k) Profit Sharing, Deferred Compensation and Long-term Incentive Plans (Tables)
12 Months Ended
Dec. 31, 2019
Postemployment Benefits [Abstract]  
Schedule of Long-term Incentive Plan

The following is a summary related to our SERP (in millions):
Year Ended December 31,
 
2019
 
2018
 
2017
Compensation expense
 
$
0.9

 
$
1.3

 
$
1.1

Total discretionary contribution
 
$
0.3

 
$
0.8

 
$
1.7

Guaranteed annual return
 
5.00
%
 
5.00
%
 
5.00
%