Supplemental cash flow information (Tables)

3 Months Ended

Mar. 31, 2021

Supplemental cash flow information

Schedule of Net Changes in Operating Assets and Liabilities

Three months ended March 31,	2021		2020
Trade and other receivables	$	(160,435)	$	(113,115)
Inventory		12,420		1,297
Advances against auction contracts		(1,085)		4,923
Prepaid expenses and deposits		(2,569)		(597)
Income taxes receivable		(1,624)		(1,217)
Auction proceeds payable		304,261		72,687
Trade and other payables		(16,623)		(3,138)
Income taxes payable		(13,720)		(5,030)
Operating lease obligation		(2,274)		(2,310)
Other		(496)		(210)
Net changes in operating assets and liabilities	$	117,855	$	(46,710)

Schedule of Supplemental Cash Flow

Three months ended March 31,	2021		2020
Interest paid, net of interest capitalized	$	14,914	$	15,171
Interest received		303		778
Net income taxes paid		23,681		12,442
Non-cash purchase of property, plant and equipment under finance lease		2,084		3,502
Non-cash right of use assets obtained (reassessed) in exchange for new lease obligations		6,234		(1,001)

Schedule of Cash, Cash Equivalents and Restricted Cash

	March 31,		December 31,
	2021		2020
Cash and cash equivalents	$	294,380	$	278,766
Restricted cash		147,240		28,129
Cash, cash equivalents, and restricted cash	$	441,620	$	306,895