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Commitments And Contingencies (Tables)
 9 Months Ended
Sep. 30, 2018
Commitments and Contingencies Disclosure [Abstract]  
Environmental The following table summarizes environmental remediation activity during the nine months ended September 30, 2018 and 2017.
 
2018

 
2017

Beginning balance – January 1

$524

 

$562

Reductions for payments made
(17
)
 
(25
)
Changes in estimates
61

 
6

Ending balance – September 30

$568

 

$543
Product Warranties The following table summarizes product warranty activity recorded during the nine months ended September 30, 2018 and 2017.
 
2018

 
2017

Beginning balance – January 1

$1,211

 

$1,414

Additions for current year deliveries
176

 
183

Reductions for payments made
(135
)
 
(193
)
Changes in estimates
(151
)
 
(213
)
Ending balance – September 30

$1,101

 

$1,191
Financing Commitments The estimated earliest potential funding dates for these commitments as of September 30, 2018 are as follows:
  
Total

October through December 2018

$326

2019
2,736

2020
3,559

2021
2,796

2022
1,567

Thereafter
8,760

 

$19,744