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Supplemental Cash Flow Information
 12 Months Ended
Dec. 31, 2019
Supplemental Cash Flow Elements [Abstract]  
Supplemental Cash Flow Information
Supplemental Cash Flow Information
a.
The changes in non-cash working capital items related to operating activities for the years ended December 31, 2019, 2018 and 2017 are as follows:
 
Year Ended December 31,
 
2019
 
2018
 
2017
Accounts receivable, including other current assets
(171,342
)
 
(16,020
)
 
14,603

Pool receivables from affiliates
56,549

 
(40,999
)
 
16,193

Due from affiliates
38,966

 
9,440

 
17,562

Bunker and lube oil inventory
(28,628
)
 
(15,564
)
 
8,322

Prepaid expenses
119

 
57

 
445

Accounts payable and accrued liabilities
83,244

 
9,778

 
(13,996
)
Due to affiliates
(16,431
)
 
(1,147
)
 
(32,641
)
Deferred revenue
7,485

 
(557
)
 
(3,898
)
Other
(394
)
 
60

 
—

Change in operating assets and liabilities
(30,432
)
 
(54,952
)

6,590



b.
Cash interest paid (including interest paid by the Entities under Common Control) during the years ended December 31, 2019, 2018, and 2017 totaled $61.8 million, $47.6 million, and $26.4 million, respectively.
c.
In November 2017, the Company acquired the outstanding shares of TIL through issuing 11.1 million Class A common shares, which was treated as a non-cash transaction in the Company's consolidated statement of cash flows. As a result of this transaction, the Company acquired $37.6 million in cash and paid $6.9 million in transaction costs (note 24).
d.
The Company maintains restricted cash deposits relating to certain contracts which were assumed as part of the acquisition of the ship-to-ship transfer business in 2015, LNG terminal management and for certain freight forward agreements (note 13). Attached to these contracts are certain performance guarantees required by the Company. The Company also maintains restricted cash deposits for the purposes of the margin requirements of the Company's obligations related to certain finance leases (note 12). Total cash, cash equivalents and restricted cash, including cash, cash equivalents and restricted cash held for sale are as follows:
    
 
As at December 31, 2019
 
As at December 31, 2018
 
As at December 31, 2017
 
As at December 31, 2016
 
$
 
$
 
$
 
$
Cash and cash equivalents
88,824

 
54,917

 
71,439

 
94,157

Restricted cash - current
3,071

 
2,153

 
1,599

 
750

Restricted cash - long-term
3,437

 
3,437

 
2,672

 
—

Cash and cash equivalents held for sale
1,121

 
—

 
—

 
—

Restricted cash held for sale - current
337

 
—

 
—

 
—

 
96,790

 
60,507

 
75,710

 
94,907



Non-cash items related to operating lease right-of-use assets and operating lease liabilities are as follows:
 
As at December 31, 2019
As at December 31, 2018
 
$
$
Leased assets obtained in exchange for new operating lease liabilities
23,725

—