Compensation Guarantees Payable

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- Definition

Loans with Contingent Obligation, Number of Loans

+ References

No definition available.

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- Definition

Period of time between issuance and maturity of debt instrument, in PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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No definition available.

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- Definition

Amount of rent expense incurred for leased assets, including but not limited to, furniture and equipment, that is not directly or indirectly associated with the manufacture, sale or creation of a product or product line.

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No definition available.

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- Definition

The total amount of the contingent obligation under letters of credit outstanding as of the reporting date.

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No definition available.

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Weighted average interest rate of long-term debt outstanding.

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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No definition available.

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- Definition

Amount of loss contingency liability.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 450
-SubTopic 20
-Section 50
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=25496072&loc=d3e14326-108349

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- Definition

Reflects the estimated amount of loss from the specified contingency as of the balance sheet date.

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Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 450
-SubTopic 20
-Section 50
-Paragraph 4
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=25496072&loc=d3e14435-108349

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 450
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-Section 50
-Paragraph 9
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-URI http://asc.fasb.org/extlink&oid=25496072&loc=d3e14557-108349

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Commitments and Contingent Liabilities - Additional Information (Details)	12 Months Ended
	Dec. 31, 2016 USD ($) loan	Dec. 31, 2015 USD ($)	Dec. 31, 2014 USD ($)	Jul. 08, 2016 EUR (€)
Loss Contingencies [Line Items]
Compensation guarantees payable		$ 0
Occupancy and Equipment Rentals
Loss Contingencies [Line Items]
Rental expense under the office leases	$ 25,200,000	$ 17,800,000	$ 19,700,000
Revolving Credit Facility
Loss Contingencies [Line Items]
Weighted average interest rate	3.93%
Debt term	3 years
Trading Activities on Euronext
Loss Contingencies [Line Items]
Loss contingency reserve \| €				€ 400,000
Guarantee Obligation
Loss Contingencies [Line Items]
Letters of credit obligation	$ 11,100,000
Indemnification Agreement
Loss Contingencies [Line Items]
Number of loans with contingent potential obligation \| loan	40
Indemnification Agreement \| Maximum
Loss Contingencies [Line Items]
Potential losses on loans	$ 8,500,000.0