Consolidated Balance Sheets - USD ($) $ in Thousands	Dec. 31, 2017	Dec. 31, 2016
Current Assets:
Cash and cash equivalents	$ 267,910	$ 207,867
Restricted cash (note 11)	63,206	50,222
Trade and other receivables (note 13)	92,105	52,979
Inventory (note 14)	38,238	28,491
Advances against auction contracts (note 15)	7,336	5,621
Prepaid expenses and deposits (note 16)	19,690	19,005
Assets held for sale (note 17)	584	632
Income taxes receivable	19,418	13,181
Total Current Assets	508,487	377,998
Property, plant and equipment (note 18)	526,581	515,030
Equity-accounted investments (note 22)	7,408	7,326
Restricted cash (note 11)		500,000
Other non-current assets (note 19)	24,146	20,244
Intangible assets (note 20)	261,094	72,304
Goodwill (note 21)	670,922	97,537
Deferred tax assets (note 8)	18,674	9,094
Total Assets	2,017,312	1,599,533
Current liabilities:
Auction proceeds payable	199,245	98,873
Trade and other payables (note 23)	164,553	124,694
Income taxes payable	732	5,355
Short-term debt (note 25)	7,018	23,912
Current portion of long-term debt (note 25)	16,907
Total Current Liabilities	388,455	252,834
Long-term debt (note 25)	795,985	595,706
Other non-current liabilities (note 26)	46,773	38,088
Deferred tax liabilities (note 8)	32,334	17,125
Total Liabilities	1,263,547	903,753
Contingencies (note 30)
Contingently redeemable performance share units (note 28)	9,014	3,950
Share capital:
Common stock; no par value, unlimited shares authorized, issued and outstanding shares: 107,269,783 (December 31, 2016: 106,822,001)	138,582	125,474
Additional paid-in capital	41,005	27,638
Retained earnings	602,609	601,071
Accumulated other comprehensive loss	(42,514)	(67,126)
Stockholders' equity	739,682	687,057
Non-controlling interest	5,069	4,773
Total Equity	744,751	691,830
Total Liabilities and Equity	$ 2,017,312	$ 1,599,533