Segment and Geographic Information (Tables)

12 Months Ended

Dec. 31, 2013

Segment Reporting [Abstract]

Reconciliation of Adjusted EBITDA to Net Income

The following table is a reconciliation of Adjusted EBITDA to net income, the most directly comparable financial measure calculated and presented in accordance with GAAP, for the periods presented:

	Year Ended December 31,
	2013			2012			2011
	(in thousands)
Adjusted EBITDA	$	378,753		$	352,474		$	322,918
Depreciation (1)		(29,495	)		(19,966	)		(18,362	)
OIBA (2)		349,258			332,508			304,556
Amortization of intangible assets		(5,731	)		(6,110	)		(7,523	)
Stock-based compensation		(48,953	)		(30,102	)		(17,344	)
Spin-Off costs		—			—			(6,932	)
Other expense, net		(9,872	)		(14,321	)		(863	)
Provision for income taxes		(79,259	)		(87,387	)		(94,103	)
Net income		205,443			194,588			177,791

(1) Includes amortization of internal use software and website development costs.

(2) We define OIBA as net income (loss) plus: (1) provision for income taxes; (2) other (income) expense, net; (3) amortization of intangible assets; (4) stock-based compensation; and (5) non-recurring expenses. This operating metric is only used by our management to calculate our annual obligation for our charitable foundation. Refer to “Note 12—Commitments and Contingencies” above for a discussion of our charitable foundation.

Summary of Total Revenue by Product

The following table presents revenue by product for the periods presented:

	Year Ended December 31,
	2013		2012		2011
	(in thousands)
Click-based advertising	$	696,046	$	587,781	$	499,993
Display-based advertising		118,964		94,147		85,736
Subscription, transaction and other		129,651		81,038		51,334
Total revenue	$	944,661	$	762,966	$	637,063

Summary of Revenue by Geographic Area

The following table presents revenue by geographic area, the United States, the United Kingdom and all other countries, based on the geographic location of our websites for the periods presented:

	Year Ended December 31,
	2013		2012		2011
	(in thousands)
Revenue
United States	$	462,920	$	386,211	$	348,066
United Kingdom		119,041		110,213		99,646
All other countries		362,700		266,542		189,351
	$	944,661	$	762,966	$	637,063

Property and Equipment, Net

The following table presents property and equipment, net for the United States and all other countries based on the geographic location of the assets for the periods presented:

	December 31,
	2013		2012
	(in thousands)
Property and equipment, net
United States	$	67,275	$	36,255
All other countries		14,253		7,547
	$	81,528	$	43,802