v2.4.0.8

Segment Information (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2013 operating_segment reportable_segment business_activity Segment_Managers	Dec. 31, 2012	Dec. 31, 2011
Segment Reporting Information [Line Items]
Business activity (in business activities)	1
Segment managers responsible for operations (in segment managers)	0
Number of operating segments (in operating segments)	1
Number of reportable segments (in reportable segments)	1
Revenue	$ 615,297	$ 533,639	$ 433,576
Property and equipment - net	36,652	25,638
Americas [Member]
Segment Reporting Information [Line Items]
Revenue	252,786	217,056	172,494
Property and equipment - net	33,751	23,227
United States
Segment Reporting Information [Line Items]
Revenue	162,327	145,369	120,456
Property and equipment - net	29,334	18,764
Canada [Member]
Segment Reporting Information [Line Items]
Property and equipment - net	4,372	4,376
Other Americas [Member]
Segment Reporting Information [Line Items]
Revenue	90,459	71,687	52,038
Property and equipment - net	45	87
EMEA [Member]
Segment Reporting Information [Line Items]
Revenue	208,979	184,175	152,385
Property and equipment - net	1,273	1,213
APAC [Member]
Segment Reporting Information [Line Items]
Revenue	153,532	132,408	108,697
Property and equipment - net	$ 1,628	$ 1,198

X

- Definition

Number of business activities

+ References

No definition available.

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X

- Definition

Number of Segment Managers Responsible for Operations

+ References

No definition available.

+ Details

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X

- Definition

Number of operating segments. An operating segment is a component of an enterprise: (a) that engages in business activities from which it may earn revenues and incur expenses (including revenues and expenses relating to transactions with other components of the same enterprise), (b) whose operating results are regularly reviewed by the enterprise's chief operating decision maker to make decisions about resources to be allocated to the segment and assess its performance, and (c) for which discrete financial information is available. An operating segment may engage in business activities for which it has yet to earn revenues, for example, start-up operations may be operating segments before earning revenues.

+ References

No definition available.

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X

- Definition

Number of segments reported by the entity. A reportable segment is a component of an entity for which there is an accounting requirement to report separate financial information on that component in the entity's financial statements.

+ References

No definition available.

+ Details

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X

- Definition

Amount after accumulated depreciation, depletion and amortization of physical assets used in the normal conduct of business to produce goods and services and not intended for resale. Examples include, but are not limited to, land, buildings, machinery and equipment, office equipment, and furniture and fixtures.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 360

-SubTopic 10

-Section 50

-Paragraph 1

-URI http://asc.fasb.org/extlink&oid=6391035&loc=d3e2868-110229



Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 210

-SubTopic 10

-Section S99

-Paragraph 1

-Subparagraph (SX 210.5-02.13)

-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682



Reference 3: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 02

-Paragraph 13

-Subparagraph a

-Article 5



Reference 4: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 03

-Paragraph 8

-Article 7

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Balance Type:	debit
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X

- Definition

Total revenue from sale of goods and services rendered during the reporting period, in the normal course of business, reduced by sales returns and allowances, and sales discounts.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 225

-SubTopic 10

-Section S99

-Paragraph 2

-Subparagraph (SX 210.5-03.1)

-URI http://asc.fasb.org/extlink&oid=26872669&loc=d3e20235-122688



Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 03

-Paragraph 1

-Article 5

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