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Summary of Significant Accounting Policies (Tables)
 12 Months Ended
Dec. 31, 2019
Accounting Policies [Abstract]  
Changes in Partnership's Capitalized Dry Docking Costs
The following table summarizes the change in the Partnership’s capitalized dry docking costs, from January 1, 2017 to December 31, 2019:

 
 
Year Ended
December 31,
2019
$
 
Year Ended
December 31,
2018
$
 
Year Ended
December 31,
2017
$
Balance at January 1,
 
40,365

 
39,144

 
33,538

Cost incurred for dry docking
 
11,000

 
15,259

 
22,283

Write-downs and sales of vessels
 
—

 
(2,448
)
 
(2,782
)
Dry-dock amortization
 
(12,601
)
 
(11,590
)
 
(13,895
)
Balance at December 31,
 
38,764

 
40,365

 
39,144