Operating Expenses (Tables)

6 Months Ended

Jun. 30, 2017

Operating Expenses [Abstract]

Schedule of Direct Operating Expenses

	Three months ended				Six months ended
	June 30,				June 30,
Six months ended June 30,		2017		2016		2017		2016
Employee compensation expenses	$	8,813	$	8,880	$	14,289	$	15,138
Buildings, facilities and technology expenses		2,401		2,011		3,947		4,306
Travel, advertising and promotion expenses		7,426		7,359		12,082		13,296
Other costs of services		2,951		1,508		4,086		2,331
	$	21,591	$	19,758	$	34,404	$	35,071

Schedule of Selling, General and Administrative Expenses

	Three months ended				Six months ended
	June 30,				June 30,
Six months ended June 30,		2017		2016		2017		2016
Employee compensation expenses	$	47,405		46,989	$	91,860	$	91,000
Buildings, facilities and technology expenses		13,319		12,969		25,594		24,205
Travel, advertising and promotion expenses		6,201		6,792		12,781		12,322
Professional fees		3,224		3,083		6,324		5,849
Other SG&A expenses		4,228		4,159		8,393		7,726
	$	74,377	$	73,992	$	144,952	$	141,102

Schedule of Acquisition Related Costs

	Three months ended				Six months ended
	June 30,				June 30,
Six months ended June 30,		2017		2016		2017		2016
IronPlanet: (note 22)
Stock option compensation
expense (note 20)	$	4,752	$	-	$	4,752	$	-
Legal costs		3,480		-		8,596		-
Other acquisition-related costs		13,955		-		16,530		-
Mascus: (note 22)
Continuing employment costs		121		266		277		439
Other acquisition-related costs		23		32		23		750
Xcira:
Continuing employment costs		284		305		666		611
Petrowsky: (note 22)
Continuing employment costs		208		-		420		-
Other acquisition-related costs		4		-		4		-
Kramer: (note 22)
Continuing employment costs		114		-		228		-
Other acquisition-related costs		7		-		79		-
	$	22,948	$	603	$	31,575	$	1,800

Schedule of Depreciation and Amortization Expenses

	Three months ended				Six months ended
	June 30,				June 30,
Six months ended June 30,		2017		2016		2017		2016
Depreciation expense	$	6,793	$	7,932	$	13,585	$	15,715
Amortization expense		5,079		2,352		8,625		4,649
	$	11,872	$	10,284	$	22,210	$	20,364