Operating expenses

6 Months Ended

Jun. 30, 2022

Operating expenses

Operating expenses

8.    Operating expenses

Costs of services

	Three months ended				Six months ended
	June 30,				June 30,
	2022		2021		2022		2021
Employee compensation expenses	$	17,045	$	14,953	$	32,966	$	29,483
Ancillary and logistical service expenses		13,446		14,819		24,201		27,088
Travel, advertising and promotion expenses		7,200		5,299		12,372		9,817
Other costs of services		4,323		3,926		7,636		7,774
Buildings, facilities and technology expenses		3,025		2,304		6,879		5,005
	$	45,039	$	41,301	$	84,054	$	79,167

Selling, general and administrative

	Three months ended				Six months ended
	June 30,				June 30,
	2022		2021		2022		2021
Wages, salaries and benefits	$	84,301	$	67,932	$	161,787	$	144,889
Share-based compensation expense		13,640		7,540		19,026		11,318
Buildings, facilities and technology expenses		23,327		17,479		43,412		34,822
Travel, advertising and promotion expenses		9,392		6,824		17,366		11,986
Professional fees		7,616		5,202		17,363		10,234
Other selling, general and administrative		6,001		4,583		11,929		10,550
	$	144,277	$	109,560	$	270,883	$	223,799

Acquisition-related costs

	Three months ended				Six months ended
	June 30,				June 30,
	2022		2021		2022		2021
SmartEquip:
Share-based continuing employment costs	$	668	$	—	$	1,326	$	—
Other acquisition-related costs		—		—		516		—
Euro Auctions:
Other acquisition-related costs		1,317		—		8,012		—
Rouse:
Share-based continuing employment costs		1,414		2,678		2,887		5,231
Other acquisition-related costs		—		371		295		740
	$	3,399	$	3,049	$	13,036	$	5,971

Depreciation and amortization

	Three months ended				Six months ended
	June 30,				June 30,
	2022		2021		2022		2021
Depreciation	$	7,889	$	8,345	$	15,636	$	16,182
Amortization		16,409		13,590		32,887		26,823
	$	24,298	$	21,935	$	48,523	$	43,005