SEGMENT INFORMATION

3 Months Ended

Mar. 31, 2018

We evaluate performance and allocate resources based on the operating income of each operating segment. The operating income of each operating segment includes the revenues of the segment less expenses that are directly related to those revenues. Operating overhead, shared costs and certain compensation costs are included in Corporate in the following table. Interest and other income, interest and other expense and provision for income taxes are not allocated to the individual segments. We do not evaluate the performance of or allocate resources to our operating segments using asset data. The accounting policies of the reportable operating segments are the same as those described in our Annual Report on Form 10-K for the year ended December 31, 2017 and our summary of significant accounting policies in "Note 1—Basis of Presentation and Summary of Significant Accounting Policies."

Information on segments and reconciliations to consolidated revenues and consolidated operating income was as follows for the three months ended March 31, 2018 and March 31, 2017:



	Three Months Ended
	March 31, 2018			March 31, 2017

	(in thousands)

Revenues^{(1) (2)}:
North America	$	594,029		$	687,044
Europe	143,277			165,549
Asia-Pacific	57,671			67,169
Consolidated revenues	$	794,977		$	919,762

Operating income (loss)⁽²⁾:
North America	$	125,404		$	94,083
Europe	70,548			54,507
Asia-Pacific	23,774			19,754
Corporate⁽³⁾	(63,556		)	(63,374		)
Consolidated operating income	$	156,170		$	104,970

Depreciation and amortization⁽²⁾:
North America	$	102,525		$	92,708
Europe	12,745			11,576
Asia-Pacific	4,632			3,275
Corporate	1,841			1,474
Consolidated depreciation and amortization	$	121,743		$	109,033

⁽¹⁾As more fully described in "Note 1—Basis of Presentation and Summary of Significant Accounting Policies" and "Note 3—Revenues," we adopted a new revenue accounting standard on January 1, 2018 that results in revenue being presented net of certain fees that we paid to third parties. This change in presentation affected our reported revenues and operating expenses during the three months ended March 31, 2018 by the same amount and had no effect on operating income.

⁽²⁾ Revenues, operating income and depreciation and amortization reflect the effect of acquired businesses from the respective dates of acquisition. For further discussion, see "Note 2—Acquisitions."

⁽³⁾ During the three months ended March 31, 2018 and March 31, 2017, respectively, operating loss for Corporate included integration expenses of $18.3 million and $26.1 million.