GAIN Capital 10-Q 12 May 14 2014 Q1 Quarterly report Financial data

Document_and_Entity_Informatio

Document and Entity Information	3 Months Ended
	Mar. 31, 2014	7-May-14
Document Documentand Entity Information [Abstract]	'	'
Entity Registrant Name	'GAIN CAPITAL HOLDINGS, INC.	'
Trading Symbol	'GCAP	'
Entity Central Index Key	'0001444363	'
Current Fiscal Year End Date	'--12-31	'
Entity Filer Category	'Accelerated Filer	'
Document Type	'10-Q	'
Document Period End Date	31-Mar-14	'
Document Fiscal Year Focus	'2014	'
Document Fiscal Period Focus	'Q1	'
Amendment Flag	'false	'
Entity Common Stock, Shares Outstanding	'	39,964,772

Condensed_Consolidated_Balance

Condensed Consolidated Balance Sheet (USD $)	Mar. 31, 2014	Dec. 31, 2013
In Thousands, unless otherwise specified
ASSETS:	'	'
Cash and cash equivalents	$39,976	$39,871
Cash and securities held for customers	805,930	739,318
Short term investments, at fair value	752	788
Receivables from banks and brokers, ($10,730) and ($9,784), respectively, at fair value	211,434	227,630
Property and equipment, net of accumulated depreciation	16,973	17,118
Prepaid assets	7,988	8,790
Goodwill	26,114	14,183
Intangible assets, net	41,830	34,828
Other assets, net	35,823	28,609
Total assets	1,186,820	1,111,135
Liabilities	'	'
Payables to customers, brokers, dealers, FCMs and other regulated entities	805,930	739,318
Accrued compensation and benefits	6,230	12,985
Accrued expenses and other liabilities	55,511	55,268
Income tax payable	5,508	3,803
Convertible senior notes	66,474	65,360
Total liabilities	939,653	876,734
Redeemable noncontrolling interest	8,433	0
GAIN Capital Holdings, Inc. Shareholders' equity	'	'
Common stock ($0.00001 par value; 60 million shares authorized; 42,460,155 shares issued and 39,964,772 shares outstanding as of March 31, 2014; 41,921,609 shares issued and 39,425,434 shares outstanding as of December 31, 2013)	0	0
Accumulated other comprehensive (loss)/income	3,878	2,576
Additional paid-in capital	142,064	138,691
Treasury stock, at cost (2,496,175 shares at March 31, 2014 and 2,496,175 at December 31, 2013, respectively)	-15,469	-15,469
Retained earnings	108,261	108,603
Total GAIN Capital Holdings, Inc. Shareholders' equity	238,734	234,401
Total liabilities and shareholders' equity	$1,186,820	$1,111,135

Condensed_Consolidated_Balance1

Condensed Consolidated Balance Sheet (Parenthetical) (USD $)	Mar. 31, 2014	Mar. 31, 2013
In Thousands, except Share data, unless otherwise specified
Statement of Financial Position [Abstract]	'	'
Receivables from banks and brokers, Fair Value	$10,848	$9,784
Common Stock, par value	$0.00	$0.00
Common Stock, shares authorized	60,000,000	60,000,000
Common Stock, shares issued	42,460,155	41,921,609
Common Stock, shares outstanding	39,963,980	39,425,434
Treasury stock, shares	2,496,175	2,496,175

Condensed_Consolidated_Stateme

Condensed Consolidated Statements of Operations and Comprehensive Income (USD $)	3 Months Ended
In Thousands, except Share data, unless otherwise specified	Mar. 31, 2014	Mar. 31, 2013
REVENUE:	'	'
Trading revenue	$47,050	$35,313
Commission revenue	29,800	10,833
Other revenue	83	3,608
Total non-interest revenue	76,933	49,754
Interest revenue	363	118
Interest expense	-1,512	-107
Total net interest revenue (expense)	-1,149	11
Net revenue	75,784	49,765
EXPENSES:	'	'
Employee compensation and benefits	21,842	15,028
Selling and marketing	6,116	5,440
Trading expenses and commissions	6,307	3,790
Referral fees	19,640	10,186
General and administrative	9,207	5,510
Depreciation and amortization	2,710	1,613
Purchased intangible amortization	1,039	636
Communications and technology	3,994	2,235
Bad debt provision	580	187
Acquisition expense	426	0
Restructuring	359	0
Integration	1,450	0
Total	73,670	44,625
INCOME BEFORE INCOME TAX EXPENSE	2,114	5,140
Income tax expense	438	861
NET INCOME	1,676	4,279
Net income attributable to non-controlling interest	38	0
NET INCOME APPLICABLE TO GAIN CAPITAL HOLDINGS, INC.	1,638	4,279
Other comprehensive income, net of tax:	'	'
Foreign currency translation adjustment	1,302	-3,133
NET COMPREHENSIVE INCOME APPLICABLE TO GAIN CAPITAL HOLDINGS, INC.	$2,940	$1,146
Earnings per common share:	'	'
Basic (usd per share)	$0.04	$0.12
Diluted (usd per share)	$0.04	$0.11
Weighted average common shares outstanding used in computing earnings per common share:	'	'
Basic (shares)	39,543,586	35,052,375
Diluted (shares)	42,627,628	37,331,592

Condensed_Consolidated_Stateme1

Condensed Consolidated Statement of Changes in Shareholders' Equity (USD $)	Total	Common Stock	Treasury Stock	Additional Paid in Capital	Accumulated Retained Earnings	Accumulated Other Comprehensive Income/(loss)
In Thousands, except Share data, unless otherwise specified	USD ($)		USD ($)	USD ($)	USD ($)	USD ($)
BEGINNING BALANCE at Dec. 31, 2013	$234,401	'	($15,469)	$138,691	$108,603	$2,576
BEGINNING BALANCE (in shares) at Dec. 31, 2013	'	39,425,434	'	'	'	'
Increase (Decrease) in Stockholders' Equity [Roll Forward]	'	'	'	'	'	'
Exercise of options (in shares)	'	101,208	'	'	'	'
Exercise of options	211	'	'	211	'	'
Common Stock, Shares, Issued	42,460,155	116,801	'	'	'	'
Additional Paid in Capital	1,241	'	'	1,241	'	'
Conversion of restricted stock into common stock (in shares)	'	321,329	'	'	'	'
Conversion of restricted stock into common stock	0	'	'	'	'	'
Stock compensation expense	1,005	'	'	1,005	'	'
Foreign currency translation adjustment	1,302	'	'	'	'	1,302
Tax benefit of stock options exercises	916	'	'	916	'	'
Dividend payment (usd per share)	-1,980	'	'	'	-1,980	'
Net income	1,638	'	'	'	1,638	'
ENDING BALANCE at Mar. 31, 2014	$238,734	'	($15,469)	$142,064	$108,261	$3,878
ENDING BALANCE (in shares) at Mar. 31, 2014	'	39,964,772	'	'	'	'

Condensed_Consolidated_Stateme2

Condensed Consolidated Statement of Changes in Shareholders' Equity (Parenthetical) (USD $)	3 Months Ended
	Mar. 31, 2014
Statement of Stockholders' Equity [Abstract]	'
Dividend payment, per share	$0.05

Condensed_Consolidated_Stateme3

Condensed Consolidated Statements of Cash Flows (USD $)	3 Months Ended
In Thousands, unless otherwise specified	Mar. 31, 2014	Mar. 31, 2013
Statement of Cash Flows [Abstract]	'	'
Net Income (Loss), Including Portion Attributable to Noncontrolling Interest	$1,676	$4,279
Adjustments to reconcile net income to cash provided by operating activities	'	'
Loss/(Gain) on foreign currency exchange rates	634	-2,556
Depreciation and amortization	4,910	2,249
Deferred taxes	-1,990	-1,093
Interest income	0	28
Amortization of deferred financing costs	88	0
Convertible note discount amortization	524	0
Bad debt provision	-580	-187
Stock compensation expense	1,005	856
Changes in operating assets and liabilities:	'	'
Cash and securities held for customers	-71,893	-4,915
Receivables from banks and brokers	16,764	-34,229
Prepaid assets	565	304
Other assets	-5,554	-1,636
Payables to customers, brokers, dealers, FCMs and other regulated entities	71,893	4,915
Accrued compensation and benefits	-6,747	-600
Accrued expenses and other liabilities	-4,088	-1,713
Income tax payable	1,728	1,692
Cash provided by/(used for) operating activities	10,095	-32,232
CASH FLOWS FROM INVESTING ACTIVITIES:	'	'
Purchases of property and equipment	-3,164	-1,040
Sale of treasury bills	63	0
Payments to Acquire Businesses, Net of Cash Acquired	-6,501	0
Cash used for investing activities	-9,602	-1,040
CASH FLOWS FROM FINANCING ACTIVITIES:	'	'
Contractual payments for acquired assets	0	-208
Proceeds from Notes Payable	0	10,000
Proceeds from exercise of stock options	211	587
Proceeds from employee stock purchase plan	0	58
Purchase of treasury stock	0	-636
Tax benefit from employee stock option exercises	916	11
Dividend payment	-1,980	-1,776
Proceeds from (Payments for) Other Financing Activities	0	-78
Cash (used for)/provided by financing activities	-853	7,958
Effect of exchange rate changes on cash and cash equivalents	465	556
INCREASE/(DECREASE) IN CASH AND CASH EQUIVALENTS	105	-24,758
CASH AND CASH EQUIVALENTS-Beginning of period	39,871	36,820
CASH AND CASH EQUIVALENTS-End of period	39,976	'
Cash (paid) / received during the year for:	'	'
Interest	0	-25
Taxes	-2,493	-213
Non-cash investing activities:	'	'
Purchase of fixed assets in accrued expense and other liabilities	0	297
Common stock issued as consideration for GAA	$1,241	$0

DESCRIPTION_OF_BUSINESS_AND_BA

DESCRIPTION OF BUSINESS AND BASIS OF PRESENTATION	3 Months Ended
	Mar. 31, 2014
Accounting Policies [Abstract]	'
DESCRIPTION OF BUSINESS AND BASIS OF PRESENTATION	'
	DESCRIPTION OF BUSINESS AND BASIS OF PRESENTATION
	Description of Business
	GAIN Capital Holdings, Inc., together with its subsidiaries (the “Company”), is a Delaware corporation formed and incorporated on March 24, 2006. GAIN Holdings, LLC is a wholly-owned subsidiary of GAIN Capital Holdings, Inc., and owns all outstanding membership units in GAIN Capital Group, LLC (“Group, LLC”), the primary regulated entity in the United States of America.
	Group, LLC is a retail foreign exchange dealer (“RFED”) and a registered Futures Commission Merchant (“FCM”) with the Commodity Futures Trading Commission (“CFTC”). As such, it is subject to the regulations of the CFTC, an agency of the U.S. Government, and the rules of the National Futures Association (“NFA”), an industry self-regulatory organization.
	The following list includes each of the Company’s significant U.S. and international regulated subsidiaries:
	GAIN Capital Group, LLC
	GAIN Capital-Forex.com U.K., Ltd.
	Forex.com Japan Co., Ltd.
	GAIN Capital Forex.com Australia Pty. Ltd.
	GAIN Capital-Forex.com Hong Kong Ltd.
	GAIN Capital-Forex.com Canada, Ltd.
	GAIN GTX, LLC
	GAIN GTX SEF, LLC
	Global Futures & Forex, Ltd.
	GFT Global Markets UK Ltd.
	GFT Global Markets Asia Pte., Ltd.
	In March 2014, the Company acquired controlling interests in Global Asset Advisors, LLC ("GAA") and Top Third Ag Marketing LLC ("TT").
	In September 2013, the Company purchased all of the outstanding share capital of Global Futures & Forex, Ltd., a Michigan corporation ("GFT").
	See note 5 "Acquisitions" for further details related to these acquisitions.
	Basis of Presentation and Principles of Consolidation
	The accompanying unaudited condensed consolidated financial statements reflect all adjustments, all of which are normal recurring adjustments that, in the opinion of management, are necessary for a fair presentation of the financial statements for the interim periods. The unaudited condensed consolidated financial statements have been prepared in accordance with the regulations of the Securities and Exchange Commission ("SEC") for interim financial statements, and, in accordance with SEC rules, omit or condense certain information and footnote disclosures. Results for the interim periods are not necessarily indicative of results to be expected for any other interim period or for the full year. These financial statements should be read in conjunction with the consolidated financial statements and related notes included in the Company’s Annual Report on Form 10-K for the year ended December 31, 2013 filed with the SEC on March 17, 2014 (the “2013 Form 10-K”). There have been no changes in the significant accounting policies from those included in the 2013 Form 10-K. The unaudited condensed consolidated financial statements include the accounts of the Company and its wholly-owned subsidiaries, after the elimination of inter-company transactions and balances.
	In an effort to align the presentation of expenses with competitors in the industry in order to enable easier comparisons, the Company has presented commissions paid to employees, previously presented in "Trading expenses and commissions" under "Employee compensation and benefits." Additionally, the Company has presented compensation paid to its white label partners and introducing brokers, which was also previously presented in "Trading expenses and commissions," under the new caption of "Referral fees." The remaining items that were previously presented in "Trading expenses and commissions," including exchange fees, fees for news services and prime broker fees, are now presented under a new caption, "Trading expenses." These changes in presentation had no effect on the total expenses.

RECENT_ACCOUNTING_PRONOUNCEMEN

RECENT ACCOUNTING PRONOUNCEMENTS	3 Months Ended
	Mar. 31, 2014
Accounting Changes and Error Corrections [Abstract]	'
RECENT ACCOUNTING PRONOUNCEMENTS	'
	RECENT ACCOUNTING PRONOUNCEMENTS
	In July 2013, the Financial Accounting Standards Board, ("FASB") issued Accounting Standards Update (“ASU”) No. 2013-11, Income Taxes (Topic 740): Presentation of an Unrecognized Tax Benefit When a Net Operating Loss Carryforward, a Similar Tax Loss, or a Tax Credit Carryforward Exists. ASU 2013-11 requires presenting unrecognized tax benefits netted against deferred tax assets, if such assets are sufficient and expected to replace cash payment, should an uncertain tax position not be sustained. This update is currently in effect. The Company has applied this update in 2014. The Company believes that it does not materially affect the three months ending March 31, 2014.

ADDITIONAL_FINANCIAL_INFORMATI

ADDITIONAL FINANCIAL INFORMATION	3 Months Ended
	Mar. 31, 2014
Organization, Consolidation and Presentation of Financial Statements [Abstract]	'
ADDITIONAL FINANCIAL INFORMATION	'
	ADDITIONAL FINANCIAL INFORMATION
	Fair Value Measurement
	The following table presents the Company’s assets and liabilities that are measured at fair value on a recurring basis during the period and the related hierarchy levels (amounts in thousands):
		Fair Value Measurements on a Recurring Basis
		as of March 31, 2014
		Level 1				Level 2			Level 3			Total
	Financial Assets/(Liabilities):
	Money market accounts	$	29,720			$	—		$	—		$	29,720
	Open contracts and other positions	—				(10,858		)	—			(10,858		)
	CIBC treasury bills	670				—			—			670
	Certificates of deposit	82				—			—			82
	Investment in gold	128				—			—			128
	Customer and broker open contracts and other positions	—				125,257			—			125,257
	Total	$	30,600			$	114,399		$	—		$	144,999
		Fair Value Measurements on a Recurring Basis
		as of December 31, 2013
		Level 1				Level 2			Level 3			Total
	Financial Assets:
	Money market accounts	$	21,019			$	—		$	—		$	21,019
	Open contracts and other positions	—				(9,904		)	—			(9,904		)
	CIBC treasury bills	706				—			—			706
	Certificates of deposit	82				—			—			82
	Investment in gold	120				—			—			120
	Customer and broker open contracts and other positions	—				129,224			—			129,224
	Total	$	21,927			$	119,320		$	—		$	141,247
	The Company has not changed its valuation techniques in measuring the fair value of any financial assets and liabilities during the period.
	Level 1 Financial Assets
	The Company has money market accounts, certificates of deposit, CIBC treasury bills and an investment in gold that are Level 1 financial instruments that are recorded based upon listed or quoted market rates. The money market accounts are recorded in Cash and cash equivalents and Cash and securities held for customers, the treasury bills are recorded in Cash and cash equivalents and Short term investments, based upon their maturity, the certificates of deposit are recorded in Short term investments and the investment in gold is recorded in Receivables from banks and brokers.
	Level 2 Financial Assets and Liabilities
	The Company has open contracts and other positions that are Level 2 financial instruments that are recorded in Receivables from banks and brokers.
	The Company has customer and broker open contracts and other positions that are Level 2 financial instruments that are recorded in Payable to customers, brokers, dealers, FCMs and other regulated entities.
	These Level 2 financial instruments are based upon directly observable values for underlying instruments.
	Financial Instruments Not Measured at Fair Value
	The table below presents the carrying value, fair value, and fair value hierarchy category of certain financial instruments that are not measured at fair value in the Condensed Consolidated Balance Sheet (amounts in thousands). The carrying value of Receivables from banks and brokers not measured at fair value approximates fair value because of the relatively short period of time between their origination and expected maturity. The carrying value of Payables to customers, brokers, dealers, FCMs, and other regulated entities includes amounts deposited by these customers and financial institutions in order for the Company to act as a clearing broker. The carrying value of Payables to customers, brokers, dealers, FCMs, and other regulated entities includes cash and open positions. The carrying value of Convertible senior notes represents the notes’ principal amounts net of unamortized discount (see note 7). We assessed the notes' fair value against prevailing interest rates as of the balance sheet date. The carrying value of Accrued expense and other liabilities includes $20.0 million, referred to as the Holdback Amount, to be paid net of an amount required to settle certain liabilities of GFT after the closing date of the acquisition (see note 5). The carrying values of Accrued expense and other liabilities not measured at fair value approximate fair value because of the relatively short period of time between their origination and expected settlement date.
		As of March 31, 2014							Fair Value Measurements using:
		Carrying Value				Fair Value			Quoted Prices		Significant				Significant
									in Active		Observable				Unobservable
									Markets for		Inputs				Inputs
									Identical Assets		(Level 2)				(Level 3)
									(Level 1)
	Financial Assets:
	Receivables from banks and brokers	$	222,164			$	222,164		—		$	222,164			—
	Financial Liabilities:
	Payables to customers, brokers, dealers, FCMs and other regulated entities	$	931,187			$	931,187		—		$	931,187			—
	Convertible senior notes	$	66,474			$	66,382		—		$	66,382			—
	Accrued expense and other liabilities	$	20,000			$	20,000		—		$	20,000			—
		As of December 31, 2013							Fair Value Measurements using:
		Carrying Value				Fair Value			Quoted Prices		Significant				Significant
									in Active		Observable				Unobservable
									Markets for		Inputs				Inputs
									Identical Assets		(Level 2)				(Level 3)
									(Level 1)
	Financial Assets:
	Receivables from banks and brokers	$	237,414			$	237,414		—		$	237,414			—
	Financial Liabilities:
	Payables to customers, brokers, dealers, FCMs and other regulated entities	$	868,542			$	868,542		—		$	868,542			—
	Convertible senior notes	$	65,360			$	64,372		—		64,372				—
	Accrued expense and other liabilities	$	20,000			$	20,000		—		20,000				—
	Receivables from Banks and Brokers
	Amounts receivable from banks and brokers consisted of the following as of (amounts in thousands):
		31-Mar-14				31-Dec-13
	Required collateral	$	123,417			$	148,731
	Excess from futures broker - Restricted	13,456				4,575
Cash in excess of required collateral	85,291				84,108
Open positions	(10,858		)		(9,904		)
Investment in spot gold	128				120
	$	211,434			$	227,630
The Company has posted funds with banks and brokers as collateral required by agreements for holding trading positions. In addition, the Company has deposited with such banks and brokers cash in excess of required collateral. These amounts are reflected as Receivables from banks and brokers on the Condensed Consolidated Balance Sheets.
Derivatives
The Company's contracts with its customers and its liquidity providers are deemed to be derivative instruments. The table below represents the fair values of the Company’s derivative instruments reported within Receivables from banks and brokers and Payables to customers, brokers, dealers, FCMs and other regulated entities on the accompanying Condensed Consolidated Balance Sheet (amounts in thousands):
	March 31, 2014
	Gross amounts of				Gross amount of			Net amounts of
	assets for				liabilities for			assets/liabilities
	derivative open				derivative open			for derivative
	positions at fair				positions at fair			open positions at
	value				value			fair value
Derivative Instruments:
Foreign currency exchange contracts	$	240,940			$	141,147		$	99,793
CFD contracts	41,337				34,584			6,753
Metals contracts	12,757				4,904			7,853
Total	$	295,034			$	180,635		$	114,399
	31-Mar-14
	Cash Collateral				Net amounts of			Net amounts of
					assets/liabilities			assets/liabilities
					for derivative			presented in the
					open positions at			balance sheet
					fair value
Derivative Assets/Liabilities:
Receivables from bank and brokers1	$	222,164			$	(10,858	)	$	211,434
Payables to customers, brokers, dealers, FCMs and other regulated entities	$	931,187			$	125,257		$	805,930
	December 31, 2013
	Gross amounts of				Gross amount of			Net amounts of
	assets for				liabilities for			assets/liabilities
	derivative open				derivative open			for derivative
	positions at fair				positions at fair			open positions at
	value				value			fair value
Derivative Instruments:
Foreign currency exchange contracts	$	152,326			$	47,631		$	104,695
CFD contracts	50,169				45,735			4,434
Metals contracts	16,485				6,294			10,191
Total	$	218,980			$	99,660		$	119,320
	31-Dec-13
	Cash Collateral				Net amounts of			Net amounts of
					assets/liabilities			assets/liabilities
					for derivative			presented in the
					open positions at			balance sheet
					fair value
Derivative Assets/Liabilities:
Receivables from bank and brokers1	$	237,414			$	(9,904	)	$	227,630
Payables to customers, brokers, dealers, FCMs and other regulated entities	$	868,542			$	129,224		$	739,318
1. The amount on the unaudited condensed consolidated balance sheets include the Company's investment in gold, which is neither a derivative nor collateral.
The Company’s derivatives include different underlyings, which vary in price. Foreign exchange contracts typically have prices less than two dollars, while certain metals contracts and contracts for difference can be considerably higher priced. The table below represents the number of contracts reported within Receivables from banks and brokers and Payables to customers, brokers, dealers, FCMs and other regulated entities on the accompanying Condensed Consolidated Balance Sheet (amounts in thousands):
	March 31, 2014
	Total contracts in long positions			Total contracts in short positions
Derivative Instruments:
Foreign currency exchange contracts	3,176,785			3,742,539
CFD contracts	611,108			27,460
Metals contracts	927			208
Total	3,788,820			3,770,207
	31-Dec-13
	Total contracts in long positions			Total contracts in short positions
Derivative Instruments:
Foreign currency exchange contracts	3,031,742			4,000,937
CFD contracts	514,058			19,201
Metals contracts	1,069			680
Total	3,546,869			4,020,818
The Company did not designate any of its derivatives as hedging instruments. Net gains with respect to derivative instruments reflected in Trading Revenue in the accompanying Condensed Consolidated Statements of Operations and Comprehensive Income for the three months ended March 31, 2014 and the three months ended March 31, 2013 were as follows (amounts in thousands):
Derivative Instruments:	March 31, 2014				31-Mar-13
Foreign currency exchange contracts	$	36,585			$	27,204
Metals contracts	6,261				5,610
CFD contracts	4,204				2,499
Total	$	47,050			$	35,313
Property and Equipment
Property and equipment, including leasehold improvements and capitalized software development costs, consisted of the following as of (amounts in thousands):
	31-Mar-14				31-Dec-13
Software	$	28,797			$	25,913
Computer equipment	6,874				6,649
Leasehold improvements	6,562				6,560
Telephone equipment	721				714
Office equipment	2,100				1,994
Furniture and fixtures	1,122				1,108
Web site development costs	646				626
	46,822				43,564
Less: Accumulated depreciation and amortization	(29,849		)		(26,446		)
Property and equipment, net	$	16,973			$	17,118
As mentioned in Note 1 above, in March, 2014, the Company purchased controlling interests in Global Assets Advisors, LLC ("GAA") and Top Third Ag Marketing LLC ("TT"); in September 2013, the Company purchased all of the outstanding share capital of GFT.
The preliminary purchase price allocations to property and equipment are detailed below in Note 5, “Acquisition”.
Depreciation and amortization expense for property and equipment was $2.7 million and $1.6 million for the three months ended March 31, 2014 and 2013, respectively. In the three months ended March 31, 2014, $1.2 million was included in integration costs.
Intangible Assets
The Company's various finite-lived intangible assets consisted of the following as of (amounts in thousands):
	31-Mar-14							31-Dec-13
	Cost				Accumulated			Cost			Accumulated
					Amortization						Amortization
Customer list1	$	18,873			$	(4,392	)	$	21,556		$	(13,594	)
Technology	26,960				(1,611		)	26,930			(910		)
Trademark	1,010				(173		)	650			(173		)
Non-compete agreement1	103				(96		)	1,859			(1,852		)
	$	46,946			$	(6,272	)	$	50,995		$	(16,529	)
1. Fully amortized intangible assets have been removed from both the cost and accumulated amortization columns at March 31, 2014.
As mentioned in Note 1 above, in March 2014, the Company purchased controlling interests in GAA and TT; in September 2013, the Company purchased all of the outstanding share capital of GFT.
The preliminary purchase price allocations to intangible assets are detailed below in Note 5, “Acquisition”.
In 2003, the Company acquired the Forex.com domain name for $0.2 million, and in 2004, the foreignexchange.com domain name was purchased for $0.1 million. Because the rights to use these domain names require the payment of a nominal annual renewal fee, management determined that there was no legal, regulatory or technological limitation on their useful lives. Accordingly, these indefinite-lived assets are not amortized. In accordance with ASC 350-10, the Company tests intangible assets for impairment on an annual basis in the fourth quarter and on an interim basis when conditions indicate impairment may have occurred.
Amortization expense for the purchased intangibles was $1.0 million and $0.6 million for the three months ended March 31, 2014 and 2013, respectively.
Goodwill
Goodwill is calculated as the difference between the cost of acquisition and the fair value     of the net identifiable assets of an acquired business. As of March 31, 2014 and December 31, 2013, the Company had recorded goodwill of approximately $26.1 million and $14.2, respectively.
Goodwill increased $5.5 million as a result of the GAA acquisition, $4.7 million as a result of the TT acquisition, and $6.2 million as a result of the acquisition of GFT. The $6.2 million arising from the GFT acquisition was adjusted from the amount reported at December 31, 2013, as part of preliminary purchase accounting.
Other Assets
Other assets consisted of the following as of (amounts in thousands):
	31-Mar-14				31-Dec-13
Vendor and security deposits	$	3,765			$	3,344
Current tax receivable	8,354				4,547
Deferred tax assets	6,342				4,922
Investment in Kapitall, Inc.	50				50
Indemnification asset	8,596				8,596
GTX Trade Receivables	5,803				4,704
Miscellaneous receivables	2,913				2,446
	$	35,823			$	28,609
The Company has recorded a liability of $5.4 million in Accrued expenses and other liabilities. This represents the Company's best estimate for the settlement of certain liabilities that were incurred as a result of ordinary course of operations in GFT prior to its acquisition. $3.2 million of these liabilities have been settled between acquisition date and March 31, 2014. The actual amount required to settle the remaining liabilities may vary from this estimate.
Under the terms of the acquisition of GFT, the selling stockholder of GFT has agreed to indemnify the Company for these liabilities that are expected to be settled after September 24, 2013. Based on the Company's best estimate of the amounts necessary to settle such liabilities, the Company recorded an indemnification asset of $8.6 million at March 31, 2014. This is included within Other current assets in the preliminary purchase price allocation of GFT, refer to note 5.

RELATED_PARTY_TRANSACTIONS

RELATED PARTY TRANSACTIONS	3 Months Ended
	Mar. 31, 2014
Related Party Transactions [Abstract]	'
RELATED PARTY TRANSACTIONS	'
	RELATED PARTY TRANSACTIONS
	Certain officers and directors of the Company have personal funds on deposit in separate customer accounts with the Company, which are recorded in Payables to customers, brokers, dealers, FCMs and other regulated entities on the Condensed Consolidated Balance Sheets. The aggregate amount of these funds was $3.2 million and $3.0 million at March 31, 2014 and December 31, 2013, respectively.

ACQUISITIONS

ACQUISITIONS	3 Months Ended
	Mar. 31, 2014
Business Combinations [Abstract]	'
ACQUISITIONS	'
	ACQUISITIONS
	Global Assets Advisors, LLC
	In March, 2014, the Company acquired a 55% interest in GAA. The purchase price was $5.5 million. This acquisition was made to strengthen the Company's futures business.
	The preliminary purchase price was derived as follows (amounts in thousands):
	Cash	$	4,270
	Common Stock issued	1,241
	Total purchase price	$	5,511
	The preliminary purchase price of GAA was allocated to the fair value of various assets and liabilities as follows (amounts in thousands):
	Non-controlling interest	$	4,509
	Cash and cash equivalents acquired	$	934
	Receivable from brokers	438
	Property and equipment	184
	Prepaid assets	157
	Other current assets	3
	Total tangible assets	1,716
	Total liabilities assumed	561
	Net assets	1,155
	Identifiable intangible assets:
	Customer list	3,100
	Trade name	270
	Intangible assets, net	3,370
	Goodwill	$	5,495
	The foregoing purchase price allocation is preliminary. The final allocation will be based on final analyses of identifiable intangible assets, property and equipment, contingent liabilities and income taxes and will be finalized after the data necessary to complete the analyses of fair values of assets and liabilities is obtained and analyzed.
	Top Third Ag Marketing LLC
	In March, 2013, the Company acquired a 55% interest in TT. The purchase prices was $4.7 million. This acquisition was made as part of the Company's strategy to diversify its revenue base.
	Cash	$	3,178
	Funds payable	1,571
	Total purchase price	$	4,749
	The preliminary purchase price of TT was allocated to the fair value of various assets and liabilities as follows (amounts in thousands):
	Non-controlling interest	$	3,886
	Cash and cash equivalents acquired	$	13
	Receivable from brokers	300
	Total tangible assets	313
	Total liabilities assumed	364
	Net assets	(51		)
	Identifiable intangible assets:
	Customer list	3,900
	Trade name	90
	Intangible assets, net	3,990
	Goodwill	$	4,696
	The foregoing purchase price allocation is preliminary. The final allocation will be based on final analyses of identifiable intangible assets, property and equipment, contingent liabilities and income taxes and will be finalized after the data necessary to complete the analyses of fair values of assets and liabilities is obtained and analyzed.
	Global Futures & Forex, Ltd
	On September 24, 2013, GAIN Capital Holdings, Inc., entered into an Amended and Restated Stock Purchase Agreement with Gary L. Tilkin, a natural person (the “Seller”), and GFT, pursuant to which the Company purchased all of the issued and outstanding share capital of GFT from the Seller. The acquisition was made as part of the Company's strategy to increase its offering of products and to expand its retail and institutional businesses into new markets and geographies.
	The preliminary purchase price of GFT, which has been updated since December 31, 2013, was derived as follows (amounts in thousands):
	Cash	$	40,000
	Payment for excess cash adjustment	2,160
	Loan payable	33,200
	Common Stock issued	34,771
	Total purchase price	$	110,131
	The preliminary purchase price was allocated to the fair value of various assets and liabilities as follows (amounts in thousands):
	Cash and cash equivalents acquired	$	15,781
	Cash and cash equivalents held for customers acquired	228,419
	Receivable from brokers	61,028
	Property and equipment	7,515
	Other current assets	15,002
	Total tangible assets	327,745
	Total liabilities assumed	252,258
	Net assets	75,487
	Consideration less net assets	34,644
	Identifiable intangible assets:
	Software	25,300
	Customer relationships	3,150
	Intangible assets, net	28,450
Goodwill	$	6,194
The foregoing purchase price and its allocation are preliminary. The final allocation will be based on final analyses of identifiable intangible assets, property and equipment, contingent liabilities and income taxes and will be finalized after the data necessary to complete the analyses of fair values of assets and liabilities is obtained and analyzed.
Pro Forma Information:
The following unaudited pro forma operating data is presented as if the acquisition of GFT had occurred on January 1, 2013. The unaudited pro forma data does not include the impact of forecasted operating expense synergies
The unaudited pro forma data is provided for informational purposes only and may not necessarily be indicative of future results of operations or what the results of operations would have been had the Company and GFT operated as a combined entity for the periods presented.
Unaudited pro forma income statement line items for the three months ended March 31, 2013 were as follows (amounts in thousands):
	For the Three Months Ended March 31,
	2013
REVENUE:
Total non-interest revenue	82,054
Interest revenue	202
Interest Expense	110
Total net interest revenue	92
Net revenue	82,146
EXPENSES:
Depreciation and amortization	2,137
Purchased intangible amortization	1,426
Other expense items	75,062
Total	78,625
INCOME BEFORE INCOME TAX EXPENSE	3,521
Income tax expense	1,320
Net income	$	2,201
Restructuring
The Company incurred Restructuring expenses, which reflected the cost of reducing global headcount following the GFT acquisition.
These expenses are recorded in Restructuring expense in the Condensed Consolidated Statements of Operations and Comprehensive Income.
	For the Three Months Ended March 31,
	2014
Restructuring liability as of January 1, 2014	$	584
2014 restructuring expenses	359
Payments made in 2014	468
Liability as of March 31, 2014	$	475

NONCONTROLLING_INTEREST_Notes

NON-CONTROLLING INTEREST (Notes)	3 Months Ended
	Mar. 31, 2014
Noncontrolling Interest [Abstract]	'
Non-Controlling Interest	'
	NON-CONTROLLING INTEREST
	Non-controlling interests
	In March 2014, the Company acquired controlling interests in GAA and TT. The Company purchased 55% of each entity, and the respective sellers maintained a 45% interest in each entity. The 45% interests are redeemable at prices determined by applying a contractually agreed upon formula to the respective acquired company's financial results. The Company owns immediately vested call options to purchase the remaining interests in each company. The minority owners hold put options, which vest in 2017 or upon the occurrence of certain events, to compel the Company to purchase the remaining interests.
	The non-controlling interests are not classified as liabilities, because redemption is not mandatory or at fixed prices. They are not classified as equity, because their redemption is not exclusively in the Company's control. Therefore, the non-controlling interests are held in temporary equity in the Condensed Consolidated Balance Sheets.
	The non-controlling interests' carrying value is determined by the Company's purchase prices and the non-controlling interests' share of the Company's subsequent net income. This value is benchmarked against the redemption value of the sellers' put options. The carrying value is adjusted to the latter, provided that it does not fall below the initial carrying values, as determined by the Company's purchase prices allocation. The Company has made a policy election to reflect any changes caused by such an adjustment in retained earnings, rather than in current earnings. The Company recorded no such adjustment for the three months ended March 31, 2014.
	The table below reflects the non-controlling interests effects on the Company's financial statements:
		Redeemable non-controlling interests
	December 31, 2013	—
	Non-controlling interests related to 2014 acquisitions	8,395
	Net income attributable to non-controlling interests	38
	March 31, 2014	8,433

CONVERTIBLE_SENIOR_NOTES_Conve

CONVERTIBLE SENIOR NOTES Convertible Senior Notes	3 Months Ended
	Mar. 31, 2014
Debt Disclosure [Abstract]	'
CONVERTIBLE SENIOR NOTES	'
	CONVERTIBLE SENIOR NOTES
	Convertible Senior Notes due 2018
	On November 27, 2013, the Company issued $80.0 million aggregate principal amount of its 4.125% Convertible Senior Notes maturing on
	December 1, 2018. The Company received net proceeds of $77.9 million, after deducting the initial purchasers' discount. The
	Convertible Notes pay interest semi-annually on June 1 and December 1 at a rate of 4.125% per year, commencing June 1,
	2014
	Under ASC 470, an entity must separately account for the liability and equity components of a convertible debt instruments that
	may be settled entirely or partially in cash upon conversion. The separate accounting must reflect the issuer's economic interest
	cost.
	The balances of the liability and equity components as of March 31, 2014, and December 31, 2013 were as follows, with amounts in thousands:
		March 31,			December 31,
		2014			2013
	Liability component - principal	$	80,000		$	80,000
	Deferred bond discount	(13,526		)	(14,640		)
	Liability component - net carrying value	$	66,474		$	65,360
	Additional paid in capital	$	12,572		$	12,572
	Discount attributable to equity	(425		)	(425		)
	Equity component	$	12,147		$	12,147
	Interest expense related to the Convertible Senior Notes, included in Interest on borrowings in the condensed consolidated statements of operations was as follows, with amounts in thousands:
		Three Months Ended
		March 31,
		2014
	Interest expense - stated coupon rate	$	825
	Interest expense - amortization of deferred bond discount and costs	612
	Total interest expense - convertible note	$	1,437

SHARE_BASED_COMPENSATION

SHARE BASED COMPENSATION	3 Months Ended
	Mar. 31, 2014
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]	'
SHARE BASED COMPENSATION	'
	SHARE BASED COMPENSATION
	During the three months ended March 31, 2014, 0.4 million shares of restricted stock and approximately 0.1 million options to purchase common stock, valued at $3.7 million and $0.4 million, respectively, were granted to employees and non-employee members of the Board of Directors, compared to 0.8 million shares of restricted stock and 0.3 million options to purchase common stock, valued at $3.6 million and $0.6 million, respectively during the three months ended March 31, 2013.
	The Company determines the fair value of restricted stock units and awards at the date of grant based on the value of the Company’s common stock. The Company determines the fair value of our stock option awards at the date of grant using a Black-Scholes valuation model. This model requires assumptions and judgments on the expected volatility, dividend yield, the risk-free interest rate and the expected term of the stock options. The following assumptions were used for stock options granted in the period:
		For the Three Months Ended March 31,
		2014	2013
	Valuation Assumptions
	Risk-free rate	1.40%	0.80%
	Expected volatility	51.80%	48.80%
	Expected term (years)	4.75	4.75
	Dividend yield	2.00%	4.90%

EARNINGS_PER_COMMON_SHARE

EARNINGS PER COMMON SHARE	3 Months Ended
	Mar. 31, 2014
Earnings Per Share [Abstract]	'
EARNINGS PER COMMON SHARE	'
	EARNINGS PER COMMON SHARE
	Basic and diluted earnings per common share are computed by dividing net income by the weighted average number of common shares outstanding during the period. Diluted earnings per share includes the determinants of basic net income per share and, in addition, gives effect to the potential dilution that would occur if securities or other contracts to issue common stock were exercised, vested or converted into common stock, unless they are anti-dilutive. Diluted weighted average common shares include vested and unvested stock options, vested restricted stock units which are to be delivered as soon as administratively practicable on or after December 31, 2014, unvested restricted stock units and unvested restricted stock awards. Approximately 1.1 million and 0.6 million stock options were excluded from the calculation of diluted earnings per share for the three months ended March 31, 2014 and the three months ended March 31, 2013, respectively, as they were anti-dilutive.
	The following table sets forth the computation of earnings per share (amounts in thousands except share and per share data):
		For the Three Months Ended March 31,
		2014		2013
	Net income applicable to GAIN Capital Holdings, Inc.	$	1,638	$	4,279
	Adjustment(1)	—		(154		)
	Net income applicable to GAIN common shareholders	$	1,638	$	4,125
	Weighted average common shares outstanding:
	Basic weighted average common shares outstanding	39,543,586		35,052,375
	Effect of dilutive securities:
	Stock options	956,445		851,451
	RSUs/RSAs	2,127,597		1,427,766
	Diluted weighted average common shares outstanding	42,627,628		37,331,592
	Earnings per common share
	Basic	$	0.04	$	0.12
	Diluted	$	0.04	$	0.11
	-1	During the period an adjustment to retained earnings was made, reflecting the amounts deemed uncollectible associated with previously issued preferred stock, which was converted to common stock immediately prior to the IPO.

LEGAL

LEGAL	3 Months Ended
	Mar. 31, 2014
Commitments and Contingencies Disclosure [Abstract]	'
LEGAL	'
	LEGAL
	From time to time the Company becomes involved in legal proceedings and in each case the Company assesses the likely liability and/or the amount of damages as appropriate. Where available information indicates that it is probable a liability had been incurred at the date of the condensed consolidated financial statements and the Company can reasonably estimate the amount of that loss, the Company accrues the estimated loss by a charge to income. In many proceedings, however, it is inherently difficult to determine whether any loss is probable or even possible or to estimate the amount of any loss. In addition, even where loss is possible or an exposure to loss exists in excess of the liability already accrued with respect to a previously recognized loss contingency, it is often not possible to reasonably estimate the size of the possible loss or range of loss.
	For certain legal proceedings, the Company can estimate possible losses, additional losses, ranges of loss or ranges of additional loss in excess of amounts accrued. For certain other legal proceedings, the Company cannot reasonably estimate such losses, if any, since the Company cannot predict if, how or when such proceedings will be resolved or what the eventual settlement, fine, penalty or other relief, if any, may be, particularly for proceedings that are in their early stages of development or where plaintiffs seek substantial or indeterminate damages. Numerous issues must be developed, including the need to discover and determine important factual matters and the need to address novel or unsettled legal questions relevant to the proceedings in question, before a loss or additional loss or range of loss or additional loss can be reasonably estimated for any proceeding.
	Litigation
	On February 16, 2012, the Company received a Letter of Claim on behalf of certain individuals who had lost money in an investment scheme operated by a third-party money management firm, incorporated in the United Kingdom, which has since been closed down by the United Kingdom’s Financial Services Authority. The investment firm, Cameron Farley Ltd, had opened a corporate account with the Company and invested the individuals’ money, representing such funds as its own, while operating a fraudulent scheme. Though a complaint has been filed and served on the Company, the claimants requested, and the Company agreed, to follow the United Kingdom’s Pre-Action Protocol, a pre-litigation process intended to resolve matters without the need to engage in formal litigation. The Company submitted a Response to the Letter before Claim on July 4, 2012. On July 5, 2012 the Company received a substantially similar Letter of Claim on behalf of further individuals. Subsequently, the parties agreed to consolidate claims by those other similarly situated individuals with the pending Pre-Action Protocol process. The parties agreed it would be more appropriate for the proceedings to be dealt with in the Commercial Court and the matters were transferred pursuant to Consent Orders dated March 14, 2013. The Company subsequently filed an application for strike out and/or summary judgment in respect of all claims on March 15, 2013. The claimants filed an answer to the Company's motion on June 2, 2013 and subsequently the Company filed a response to this answer on July 15, 2013. A hearing was held on the Company's application for strike out and/or summary judgment on September 18 and 19, 2013.  After the hearing, the judge asked the claimants to respond in writing to his additional questions from the hearing.  The complaints had until October 11, 2013 to provide answers and the Company was given until November 1, 2013 to respond.  On February 26, 2014, the judge denied the Company's motion for strike out/ summary judgment. The Company can provide no assurances that this matter will be successfully resolved. This matter is currently pending. As of the date of this report, a potential loss or a potential range of loss cannot be reasonably estimated.
	Through the Company's acquisition of OEC, the Company became the subject of a patent infringement lawsuit originally filed against OEC on February 9, 2010 in the U.S. District Court for the Northern District of Illinois by Trading Technologies International, Inc. seeking injunctive relief and unspecified damages. As reflected in a Second Amended Complaint filed on June 15, 2011, plaintiff alleges infringement of 12 patents relating to real-time display of price quotes and market depth on OEC's electronic trading interfaces. The case was consolidated with 11 related cases in February 2011, and the parties have exchanged infringement, non-infringement and invalidity contentions for several of the disputed patents. In June 2011, the court stayed discovery to allow summary judgment briefing on the ramifications of a recent Federal Circuit decision. On February 9, 2012, the court issued an order, which granted defendants' motions for summary judgment, resulting in a substantial narrowing of the scope of plaintiff's claims. Plaintiff filed a motion for reconsideration of that ruling on March 8, 2012. Plaintiff also filed a motion for certification of judgment for interlocutory appeal. The court denied plaintiff's motion for reconsideration but granted plaintiff's motion for certification of judgments of patent invalidity with respect to four of the asserted patents. On August 30, 2013, the Federal Circuit issued its opinion vacating and remanding the court's judgment of patent invalidity regarding four of the asserted patents. On remand, defendants renewed their motion for summary judgment of patent invalidity. In April 2014, the court deferred its consideration of defendants' renewed motion for summary judgment and signaled its intent to re-start the litigation by requesting that the parties submit a proposed pre-trial schedule. Plaintiff's complaint does not specify the amount of damages sought. As of the date of this report, a potential loss or a potential range of loss cannot be reasonably estimated.

INCOME_TAXES

INCOME TAXES	3 Months Ended
	Mar. 31, 2014
Income Tax Disclosure [Abstract]	'
INCOME TAXES	'
	INCOME TAXES
	The Company’s provision for income taxes was approximately $0.4 million and $0.9 million for the three months ended March 31, 2014 and the three months ended March 31, 2013, respectively. These amounts reflect effective tax rates of 20.7% and 16.9%, respectively. The Company's effective tax rate of 20.7% for the three months ended March 31, 2014 reflects the Company's estimate of the annual effective tax rate adjusted for certain discrete items. For the three months ended March 31, 2014 there was a $0.6 million reduction in the provision for income taxes resulting from the conclusion of a NJ State tax audit.
	Deferred income taxes reflect the net tax effects of temporary differences between the financial reporting and tax basis of assets and liabilities and are measured using the enacted tax rates and laws that will be in effect when such differences are expected to reverse. The Company’s net deferred tax assets are included in Other assets on the Condensed Consolidated Balance Sheet.

REGULATORY_REQUIREMENTS

REGULATORY REQUIREMENTS	3 Months Ended
	Mar. 31, 2014
Banking and Thrift [Abstract]	'
REGULATORY REQUIREMENTS	'
	REGULATORY REQUIREMENTS
	The following table illustrates the minimum regulatory capital our subsidiaries were required to maintain as of March 31, 2014 and the actual amounts of capital that were maintained (amounts in millions):
	Entity Name	Minimum		Capital		Excess		Percent  of
		Regulatory		Levels		Net		Requirement
		Capital		Maintained		Capital		Maintained
		Requirements
	GFT Global Markets UK Ltd.	$	10.8	$	47.6	$	36.8	442	%
	GAIN Capital Group, LLC	24.7		35.4		10.7		143	%
	GAIN Capital-Forex.com U.K., Ltd.	28.8		35.7		6.9		124	%
	Forex.com Japan Co., Ltd.	3.1		9.2		6.1		297	%
	GAIN Capital-Forex.com Hong Kong, Ltd.	1.9		3.8		1.9		197	%
	GFT Global Markets Asia Pte., Ltd.	—		2		2		—	%
	Global Futures & Forex, Ltd.	1		7		6		700	%
	GAIN Capital Forex.com Australia, Pty. Ltd.	0.9		2.7		1.8		297	%
	GAIN Capital-Forex.com Canada Ltd.	0.2		1.7		1.5		736	%
	GAIN Capital Securities, Inc.	0.1		0.5		0.4		966	%
	GAIN Global Markets, Inc.	0.1		0.3		0.2		306	%
	Global Assets Advisors, LLC	0.1		0.2		0.1		174	%
	Total	$	71.7	$	146.1	$	74.4	204	%
	As compared to amounts reported in the Company’s Annual Report on Form 10-K filed on March 17, 2014, regulatory requirements decreased approximately $12.5 million, primarily related to due capital charges at the Company's UK regulated affiliates.

SEGMENT_INFORMATION

SEGMENT INFORMATION	3 Months Ended
	Mar. 31, 2014
Segment Reporting [Abstract]	'
SEGMENT INFORMATION	'
	SEGMENT INFORMATION
	ASC 280, Disclosures about Segments of an Enterprise and Related Information, establishes standards for reporting information about operating segments. Operating segments are defined as components of an enterprise about which separate financial information is available that is evaluated regularly by the chief operating decision-maker, or decision making group, in deciding how to allocate resources and in assessing performance. Reportable segments are defined as an operating segment that either (a) exceeds 10% of revenue, or (b) reported profit or loss in absolute amount exceeds 10% of profit of all operating segments that did not report a loss or (c) exceeds 10% of the combined assets of all operating segments. The Company’s operations relate to global trading services and solutions. Based on the Company’s management strategies, and common production, marketing, development and client coverage teams, the Company has concluded that it operates in a single operating segment.

SUBSEQUENT_EVENTS

SUBSEQUENT EVENTS	3 Months Ended
	Mar. 31, 2014
Subsequent Events [Abstract]	'
SUBSEQUENT EVENTS	'
	SUBSEQUENT EVENTS
	In May 2014, the Company announced the payment of a $0.05 dividend per share of Common Stock payable on June 20, 2014 to stockholders of record on June 12, 2014.
	On April 7, 2014, the Company announced that it had entered into an agreement to acquire Galvan Research and Trading Limited, a UK CFD advisory business. The closing of the transaction is subject to regulatory approval and customary closing conditions.

ADDITIONAL_FINANCIAL_INFORMATI1

ADDITIONAL FINANCIAL INFORMATION (Tables)	3 Months Ended
	Mar. 31, 2014
Organization, Consolidation and Presentation of Financial Statements [Abstract]	'
Assets and Liabilities Measured at Fair Value on Recurring Basis	'
	The following table presents the Company’s assets and liabilities that are measured at fair value on a recurring basis during the period and the related hierarchy levels (amounts in thousands):
		Fair Value Measurements on a Recurring Basis
		as of March 31, 2014
		Level 1				Level 2			Level 3			Total
	Financial Assets/(Liabilities):
	Money market accounts	$	29,720			$	—		$	—		$	29,720
	Open contracts and other positions	—				(10,858		)	—			(10,858		)
	CIBC treasury bills	670				—			—			670
	Certificates of deposit	82				—			—			82
	Investment in gold	128				—			—			128
	Customer and broker open contracts and other positions	—				125,257			—			125,257
	Total	$	30,600			$	114,399		$	—		$	144,999
		Fair Value Measurements on a Recurring Basis
		as of December 31, 2013
		Level 1				Level 2			Level 3			Total
	Financial Assets:
	Money market accounts	$	21,019			$	—		$	—		$	21,019
	Open contracts and other positions	—				(9,904		)	—			(9,904		)
	CIBC treasury bills	706				—			—			706
	Certificates of deposit	82				—			—			82
	Investment in gold	120				—			—			120
	Customer and broker open contracts and other positions	—				129,224			—			129,224
	Total	$	21,927			$	119,320		$	—		$	141,247
Carrying Value and Fair Value and Fair Value Hierarchy Category of Financial Instruments Not Measured at Fair Value in Condensed Consolidated Statements of Financial Condition	'
		As of March 31, 2014							Fair Value Measurements using:
		Carrying Value				Fair Value			Quoted Prices		Significant				Significant
									in Active		Observable				Unobservable
									Markets for		Inputs				Inputs
									Identical Assets		(Level 2)				(Level 3)
									(Level 1)
	Financial Assets:
	Receivables from banks and brokers	$	222,164			$	222,164		—		$	222,164			—
	Financial Liabilities:
	Payables to customers, brokers, dealers, FCMs and other regulated entities	$	931,187			$	931,187		—		$	931,187			—
	Convertible senior notes	$	66,474			$	66,382		—		$	66,382			—
	Accrued expense and other liabilities	$	20,000			$	20,000		—		$	20,000			—
		As of December 31, 2013							Fair Value Measurements using:
		Carrying Value				Fair Value			Quoted Prices		Significant				Significant
									in Active		Observable				Unobservable
									Markets for		Inputs				Inputs
									Identical Assets		(Level 2)				(Level 3)
									(Level 1)
	Financial Assets:
	Receivables from banks and brokers	$	237,414			$	237,414		—		$	237,414			—
	Financial Liabilities:
	Payables to customers, brokers, dealers, FCMs and other regulated entities	$	868,542			$	868,542		—		$	868,542			—
	Convertible senior notes	$	65,360			$	64,372		—		64,372				—
	Accrued expense and other liabilities	$	20,000			$	20,000		—		20,000				—
Receivable from Brokers	'
	Amounts receivable from banks and brokers consisted of the following as of (amounts in thousands):
		31-Mar-14				31-Dec-13
	Required collateral	$	123,417			$	148,731
	Excess from futures broker - Restricted	13,456				4,575
	Cash in excess of required collateral	85,291				84,108
	Open positions	(10,858		)		(9,904		)
	Investment in spot gold	128				120
		$	211,434			$	227,630
Fair Values of Derivative Instruments	'
		March 31, 2014
		Gross amounts of				Gross amount of			Net amounts of
		assets for				liabilities for			assets/liabilities
		derivative open				derivative open			for derivative
		positions at fair				positions at fair			open positions at
		value				value			fair value
	Derivative Instruments:
	Foreign currency exchange contracts	$	240,940			$	141,147		$	99,793
	CFD contracts	41,337				34,584			6,753
	Metals contracts	12,757				4,904			7,853
	Total	$	295,034			$	180,635		$	114,399
		31-Mar-14
		Cash Collateral				Net amounts of			Net amounts of
						assets/liabilities			assets/liabilities
						for derivative			presented in the
						open positions at			balance sheet
						fair value
	Derivative Assets/Liabilities:
	Receivables from bank and brokers1	$	222,164			$	(10,858	)	$	211,434
	Payables to customers, brokers, dealers, FCMs and other regulated entities	$	931,187			$	125,257		$	805,930
		December 31, 2013
		Gross amounts of				Gross amount of			Net amounts of
		assets for				liabilities for			assets/liabilities
		derivative open				derivative open			for derivative
		positions at fair				positions at fair			open positions at
		value				value			fair value
	Derivative Instruments:
	Foreign currency exchange contracts	$	152,326			$	47,631		$	104,695
	CFD contracts	50,169				45,735			4,434
	Metals contracts	16,485				6,294			10,191
	Total	$	218,980			$	99,660		$	119,320
		31-Dec-13
		Cash Collateral				Net amounts of			Net amounts of
						assets/liabilities			assets/liabilities
						for derivative			presented in the
						open positions at			balance sheet
						fair value
	Derivative Assets/Liabilities:
	Receivables from bank and brokers1	$	237,414			$	(9,904	)	$	227,630
	Payables to customers, brokers, dealers, FCMs and other regulated entities	$	868,542			$	129,224		$	739,318
Notional Values of Derivative Instruments	'
		March 31, 2014
		Total contracts in long positions			Total contracts in short positions
	Derivative Instruments:
	Foreign currency exchange contracts	3,176,785			3,742,539
	CFD contracts	611,108			27,460
	Metals contracts	927			208
	Total	3,788,820			3,770,207
		31-Dec-13
		Total contracts in long positions			Total contracts in short positions
	Derivative Instruments:
	Foreign currency exchange contracts	3,031,742			4,000,937
	CFD contracts	514,058			19,201
	Metals contracts	1,069			680
	Total	3,546,869			4,020,818
Net Gains (Losses) With Respect to Derivative Instruments Which are Reflected in Trading Revenue	'
	Net gains with respect to derivative instruments reflected in Trading Revenue in the accompanying Condensed Consolidated Statements of Operations and Comprehensive Income for the three months ended March 31, 2014 and the three months ended March 31, 2013 were as follows (amounts in thousands):
	Derivative Instruments:	March 31, 2014				31-Mar-13
	Foreign currency exchange contracts	$	36,585			$	27,204
	Metals contracts	6,261				5,610
	CFD contracts	4,204				2,499
	Total	$	47,050			$	35,313
Property and Equipment Including Leasehold Improvements and Capitalized Software Development Costs	'
	Property and equipment, including leasehold improvements and capitalized software development costs, consisted of the following as of (amounts in thousands):
		31-Mar-14				31-Dec-13
	Software	$	28,797			$	25,913
	Computer equipment	6,874				6,649
	Leasehold improvements	6,562				6,560
	Telephone equipment	721				714
	Office equipment	2,100				1,994
	Furniture and fixtures	1,122				1,108
	Web site development costs	646				626
		46,822				43,564
	Less: Accumulated depreciation and amortization	(29,849		)		(26,446		)
	Property and equipment, net	$	16,973			$	17,118
Intangible Assets	'
	The Company's various finite-lived intangible assets consisted of the following as of (amounts in thousands):
		31-Mar-14							31-Dec-13
		Cost				Accumulated			Cost			Accumulated
						Amortization						Amortization
	Customer list1	$	18,873			$	(4,392	)	$	21,556		$	(13,594	)
	Technology	26,960				(1,611		)	26,930			(910		)
	Trademark	1,010				(173		)	650			(173		)
	Non-compete agreement1	103				(96		)	1,859			(1,852		)
		$	46,946			$	(6,272	)	$	50,995		$	(16,529	)
Other Assets	'
	Other assets consisted of the following as of (amounts in thousands):
		31-Mar-14				31-Dec-13
	Vendor and security deposits	$	3,765			$	3,344
	Current tax receivable	8,354				4,547
	Deferred tax assets	6,342				4,922
	Investment in Kapitall, Inc.	50				50
	Indemnification asset	8,596				8,596
	GTX Trade Receivables	5,803				4,704
	Miscellaneous receivables	2,913				2,446
		$	35,823			$	28,609

ACQUISITIONS_Tables

ACQUISITIONS (Tables)	3 Months Ended
	Mar. 31, 2014
Business Acquisition, Pro Forma Information, Nonrecurring Adjustment [Line Items]	'
Pro Forma Information	'
	Unaudited pro forma income statement line items for the three months ended March 31, 2013 were as follows (amounts in thousands):
		For the Three Months Ended March 31,
		2013
	REVENUE:
	Total non-interest revenue	82,054
	Interest revenue	202
	Interest Expense	110
	Total net interest revenue	92
	Net revenue	82,146
	EXPENSES:
	Depreciation and amortization	2,137
	Purchased intangible amortization	1,426
	Other expense items	75,062
	Total	78,625
	INCOME BEFORE INCOME TAX EXPENSE	3,521
	Income tax expense	1,320
	Net income	$	2,201
Schedule of Restructuring Costs	'
		For the Three Months Ended March 31,
		2014
	Restructuring liability as of January 1, 2014	$	584
	2014 restructuring expenses	359
	Payments made in 2014	468
	Liability as of March 31, 2014	$	475
Global Assets Advisors, LLC	'
Business Acquisition, Pro Forma Information, Nonrecurring Adjustment [Line Items]	'
Preliminary Purchase Price	'
	The preliminary purchase price was derived as follows (amounts in thousands):
	Cash	$	4,270
	Common Stock issued	1,241
	Total purchase price	$	5,511
Schedule of Recognized Identified Assets Acquired and Liabilities Assumed	'
	Cash	$	4,270
	Common Stock issued	1,241
	Total purchase price	$	5,511
	The preliminary purchase price of GAA was allocated to the fair value of various assets and liabilities as follows (amounts in thousands):
	Non-controlling interest	$	4,509
	Cash and cash equivalents acquired	$	934
	Receivable from brokers	438
	Property and equipment	184
	Prepaid assets	157
	Other current assets	3
	Total tangible assets	1,716
	Total liabilities assumed	561
	Net assets	1,155
	Identifiable intangible assets:
	Customer list	3,100
	Trade name	270
	Intangible assets, net	3,370
	Goodwill	$	5,495
Top Third Ag Marketing, LLC	'
Business Acquisition, Pro Forma Information, Nonrecurring Adjustment [Line Items]	'
Preliminary Purchase Price	'
	Cash	$	3,178
	Funds payable	1,571
	Total purchase price	$	4,749
Schedule of Recognized Identified Assets Acquired and Liabilities Assumed	'
	The preliminary purchase price of TT was allocated to the fair value of various assets and liabilities as follows (amounts in thousands):
	Non-controlling interest	$	3,886
	Cash and cash equivalents acquired	$	13
	Receivable from brokers	300
	Total tangible assets	313
	Total liabilities assumed	364
	Net assets	(51		)
	Identifiable intangible assets:
	Customer list	3,900
	Trade name	90
	Intangible assets, net	3,990
	Goodwill	$	4,696
Global Futures & Forex Ltd	'
Business Acquisition, Pro Forma Information, Nonrecurring Adjustment [Line Items]	'
Preliminary Purchase Price	'
	The preliminary purchase price of GFT, which has been updated since December 31, 2013, was derived as follows (amounts in thousands):
	Cash	$	40,000
	Payment for excess cash adjustment	2,160
	Loan payable	33,200
	Common Stock issued	34,771
	Total purchase price	$	110,131
Schedule of Recognized Identified Assets Acquired and Liabilities Assumed	'
	The preliminary purchase price was allocated to the fair value of various assets and liabilities as follows (amounts in thousands):
	Cash and cash equivalents acquired	$	15,781
	Cash and cash equivalents held for customers acquired	228,419
	Receivable from brokers	61,028
	Property and equipment	7,515
	Other current assets	15,002
	Total tangible assets	327,745
	Total liabilities assumed	252,258
	Net assets	75,487
	Consideration less net assets	34,644
	Identifiable intangible assets:
	Software	25,300
	Customer relationships	3,150
	Intangible assets, net	28,450
	Goodwill	$	6,194

NONCONTROLLING_INTEREST_Tables

NON-CONTROLLING INTEREST (Tables)	3 Months Ended
	Mar. 31, 2014
Noncontrolling Interest [Abstract]	'
Summary of redeemable noncontrolling interest treatment	'
	The table below reflects the non-controlling interests effects on the Company's financial statements:
		Redeemable non-controlling interests
	December 31, 2013	—
	Non-controlling interests related to 2014 acquisitions	8,395
	Net income attributable to non-controlling interests	38
	March 31, 2014	8,433

CONVERTIBLE_SENIOR_NOTES_Conve1

CONVERTIBLE SENIOR NOTES Convertible Senior Notes (Tables)	3 Months Ended
	Mar. 31, 2014
Debt Disclosure [Abstract]	'
Schedule of Liability and Equity Components of Convertible Debt	'
	The balances of the liability and equity components as of March 31, 2014, and December 31, 2013 were as follows, with amounts in thousands:
		March 31,			December 31,
		2014			2013
	Liability component - principal	$	80,000		$	80,000
	Deferred bond discount	(13,526		)	(14,640		)
	Liability component - net carrying value	$	66,474		$	65,360
	Additional paid in capital	$	12,572		$	12,572
	Discount attributable to equity	(425		)	(425		)
	Equity component	$	12,147		$	12,147
Schedule of Interest Expense	'
	Interest expense related to the Convertible Senior Notes, included in Interest on borrowings in the condensed consolidated statements of operations was as follows, with amounts in thousands:
		Three Months Ended
		March 31,
		2014
	Interest expense - stated coupon rate	$	825
	Interest expense - amortization of deferred bond discount and costs	612
	Total interest expense - convertible note	$	1,437

SHARE_BASED_COMPENSATION_Table

SHARE BASED COMPENSATION (Tables)	3 Months Ended
	Mar. 31, 2014
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]	'
Assumptions for Stock Options Granted	'
	The following assumptions were used for stock options granted in the period:
		For the Three Months Ended March 31,
		2014	2013
	Valuation Assumptions
	Risk-free rate	1.40%	0.80%
	Expected volatility	51.80%	48.80%
	Expected term (years)	4.75	4.75
	Dividend yield	2.00%	4.90%

EARNINGS_PER_COMMON_SHARE_Tabl

EARNINGS PER COMMON SHARE (Tables)	3 Months Ended
	Mar. 31, 2014
Earnings Per Share [Abstract]	'
Computation of Earnings Per Share	'
	The following table sets forth the computation of earnings per share (amounts in thousands except share and per share data):
		For the Three Months Ended March 31,
		2014		2013
	Net income applicable to GAIN Capital Holdings, Inc.	$	1,638	$	4,279
	Adjustment(1)	—		(154		)
	Net income applicable to GAIN common shareholders	$	1,638	$	4,125
	Weighted average common shares outstanding:
	Basic weighted average common shares outstanding	39,543,586		35,052,375
	Effect of dilutive securities:
	Stock options	956,445		851,451
	RSUs/RSAs	2,127,597		1,427,766
	Diluted weighted average common shares outstanding	42,627,628		37,331,592
	Earnings per common share
	Basic	$	0.04	$	0.12
	Diluted	$	0.04	$	0.11
	-1	During the period an adjustment to retained earnings was made, reflecting the amounts deemed uncollectible associated with previously issued preferred stock, which was converted to common stock immediately prior to the IPO.

REGULATORY_REQUIREMENTS_Tables

REGULATORY REQUIREMENTS (Tables)	3 Months Ended
	Mar. 31, 2014
Banking and Thrift [Abstract]	'
Minimum Regulatory Capital Subsidiaries Required to Maintain	'
	The following table illustrates the minimum regulatory capital our subsidiaries were required to maintain as of March 31, 2014 and the actual amounts of capital that were maintained (amounts in millions):
	Entity Name	Minimum		Capital		Excess		Percent  of
		Regulatory		Levels		Net		Requirement
		Capital		Maintained		Capital		Maintained
		Requirements
	GFT Global Markets UK Ltd.	$	10.8	$	47.6	$	36.8	442	%
	GAIN Capital Group, LLC	24.7		35.4		10.7		143	%
	GAIN Capital-Forex.com U.K., Ltd.	28.8		35.7		6.9		124	%
	Forex.com Japan Co., Ltd.	3.1		9.2		6.1		297	%
	GAIN Capital-Forex.com Hong Kong, Ltd.	1.9		3.8		1.9		197	%
	GFT Global Markets Asia Pte., Ltd.	—		2		2		—	%
	Global Futures & Forex, Ltd.	1		7		6		700	%
	GAIN Capital Forex.com Australia, Pty. Ltd.	0.9		2.7		1.8		297	%
	GAIN Capital-Forex.com Canada Ltd.	0.2		1.7		1.5		736	%
	GAIN Capital Securities, Inc.	0.1		0.5		0.4		966	%
	GAIN Global Markets, Inc.	0.1		0.3		0.2		306	%
	Global Assets Advisors, LLC	0.1		0.2		0.1		174	%
	Total	$	71.7	$	146.1	$	74.4	204	%

ADDITIONAL_FINANCIAL_INFORMATI2

ADDITIONAL FINANCIAL INFORMATION - Assets and Liabilities Measured at Fair Value on Recurring Basis (Detail) (USD $)	Mar. 31, 2014	Dec. 31, 2013
In Thousands, unless otherwise specified
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]	'	'
Assets	$144,999	$141,247
Money market accounts	'	'
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]	'	'
Assets	29,720	21,019
Open contracts and other positions	'	'
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]	'	'
Liabilities	-10,858	-9,904
CIBC treasury bills	'	'
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]	'	'
Assets	670	706
Certificates of deposit	'	'
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]	'	'
Assets	82	82
Investment in gold	'	'
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]	'	'
Assets	128	120
Customer and broker open contracts and other positions	'	'
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]	'	'
Assets	125,257	129,224
Level 1	'	'
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]	'	'
Assets	30,600	21,927
Level 1 | Money market accounts	'	'
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]	'	'
Assets	29,720	21,019
Level 1 | Open contracts and other positions	'	'
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]	'	'
Liabilities	0	0
Level 1 | CIBC treasury bills	'	'
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]	'	'
Assets	670	706
Level 1 | Certificates of deposit	'	'
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]	'	'
Assets	82	82
Level 1 | Investment in gold	'	'
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]	'	'
Assets	128	120
Level 1 | Customer and broker open contracts and other positions	'	'
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]	'	'
Assets	0	0
Level 2	'	'
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]	'	'
Assets	114,399	119,320
Level 2 | Money market accounts	'	'
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]	'	'
Assets	0	0
Level 2 | Open contracts and other positions	'	'
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]	'	'
Liabilities	-10,858	-9,904
Level 2 | CIBC treasury bills	'	'
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]	'	'
Assets	0	0
Level 2 | Certificates of deposit	'	'
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]	'	'
Assets	0	0
Level 2 | Investment in gold	'	'
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]	'	'
Assets	0	0
Level 2 | Customer and broker open contracts and other positions	'	'
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]	'	'
Assets	125,257	129,224
Level 3	'	'
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]	'	'
Assets	0	0
Level 3 | Money market accounts	'	'
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]	'	'
Assets	0	0
Level 3 | Open contracts and other positions	'	'
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]	'	'
Liabilities	0	0
Level 3 | CIBC treasury bills	'	'
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]	'	'
Assets	0	0
Level 3 | Certificates of deposit	'	'
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]	'	'
Assets	0	0
Level 3 | Investment in gold	'	'
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]	'	'
Assets	0	0
Level 3 | Customer and broker open contracts and other positions	'	'
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]	'	'
Assets	$0	$0

ADDITIONAL_FINANCIAL_INFORMATI3

ADDITIONAL FINANCIAL INFORMATION - Carrying Value and Fair Value and Fair Value Hierarchy Category of Financial Instruments Not Measured at Fair Value in Condensed Consolidated Statements of Financial Condition (Detail) (USD $)	Mar. 31, 2014	Dec. 31, 2013
In Thousands, unless otherwise specified
Financial Assets:	'	'
Receivable from banks and brokers	$211,434	$227,630
Financial Liabilities:	'	'
Payables to customers, brokers, dealers, FCMs and other regulated entities	805,930	739,318
Convertible senior notes	66,474	65,360
Derivative Assets	'	'
Financial Assets:	'	'
Receivable from banks and brokers	211,434	227,630
Cash Collateral	222,164	237,414
Derivative Assets | Level 2	'	'
Financial Assets:	'	'
Receivable from banks and brokers	222,164	237,414
Derivative Assets | Carrying Value	'	'
Financial Assets:	'	'
Receivable from banks and brokers	222,164	'
Cash Collateral	'	237,414
Derivative Assets | Fair Value	'	'
Financial Assets:	'	'
Receivable from banks and brokers	222,164	'
Cash Collateral	'	237,414
Derivative Liabilities	'	'
Financial Liabilities:	'	'
Derivative, Collateral, Obligation to Return Cash	'	868,542
Derivative Liabilities | Level 2	'	'
Financial Liabilities:	'	'
Derivative, Collateral, Obligation to Return Cash	931,187	868,542
Convertible senior notes	66,382	64,372
Accrued Liabilities, Current	20,000	20,000
Derivative Liabilities | Carrying Value	'	'
Financial Liabilities:	'	'
Derivative, Collateral, Obligation to Return Cash	931,187	868,542
Convertible senior notes	66,474	65,360
Accrued Liabilities, Current	20,000	20,000
Derivative Liabilities | Carrying Value | Level 2	'	'
Financial Liabilities:	'	'
Derivative, Collateral, Obligation to Return Cash	931,187	'
Derivative Liabilities | Fair Value	'	'
Financial Liabilities:	'	'
Derivative, Collateral, Obligation to Return Cash	931,187	868,542
Convertible senior notes	66,382	64,372
Accrued Liabilities, Current	$20,000	$20,000

ADDITIONAL_FINANCIAL_INFORMATI4

ADDITIONAL FINANCIAL INFORMATION - Receivable from Brokers (Detail) (USD $)	Mar. 31, 2014	Dec. 31, 2013
In Thousands, unless otherwise specified
Receivables from Brokerage Clients [Line Items]	'	'
Receivable from banks and brokers	$211,434	$227,630
Required collateral	'	'
Receivables from Brokerage Clients [Line Items]	'	'
Receivable from banks and brokers	123,417	148,731
Excess From Futures Broker - Restricted [Member]	'	'
Receivables from Brokerage Clients [Line Items]	'	'
Receivable from banks and brokers	13,456	4,575
Cash in excess of required collateral	'	'
Receivables from Brokerage Clients [Line Items]	'	'
Receivable from banks and brokers	85,291	84,108
Open Position	'	'
Receivables from Brokerage Clients [Line Items]	'	'
Receivable from banks and brokers	-10,858	-9,904
Investment in spot gold	'	'
Receivables from Brokerage Clients [Line Items]	'	'
Receivable from banks and brokers	$128	$120

ADDITIONAL_FINANCIAL_INFORMATI5

ADDITIONAL FINANCIAL INFORMATION - Fair Values of Derivative Instruments (Detail) (USD $)	Mar. 31, 2014	Dec. 31, 2013
In Thousands, unless otherwise specified
Derivatives, Fair Value [Line Items]	'	'
Gross amounts of assets for derivative open positions at fair value	$295,034	$218,980
Gross amounts of liability for derivative open positions at fair value	180,635	99,660
Net amounts of assets/liabilities for derivative open positions at fair value	114,399	119,320
Receivable from banks and brokers	211,434	227,630
Net amounts of assets/liabilities presented in the balance sheet	805,930	739,318
Cash and securities held for customers	805,930	739,318
Derivative Assets	'	'
Derivatives, Fair Value [Line Items]	'	'
Cash Collateral	222,164	237,414
Net amounts of assets/liabilities for derivative open positions at fair value	-10,858	-9,904
Receivable from banks and brokers	211,434	227,630
Derivative Liabilities	'	'
Derivatives, Fair Value [Line Items]	'	'
Cash Collateral	'	868,542
Net amounts of assets/liabilities for derivative open positions at fair value	125,257	129,224
Foreign currency exchange contracts	'	'
Derivatives, Fair Value [Line Items]	'	'
Gross amounts of assets for derivative open positions at fair value	240,940	152,326
Gross amounts of liability for derivative open positions at fair value	141,147	47,631
Net amounts of assets/liabilities for derivative open positions at fair value	99,793	104,695
CFD contracts	'	'
Derivatives, Fair Value [Line Items]	'	'
Gross amounts of assets for derivative open positions at fair value	41,337	50,169
Gross amounts of liability for derivative open positions at fair value	34,584	45,735
Net amounts of assets/liabilities for derivative open positions at fair value	6,753	4,434
Metal contracts	'	'
Derivatives, Fair Value [Line Items]	'	'
Gross amounts of assets for derivative open positions at fair value	12,757	16,485
Gross amounts of liability for derivative open positions at fair value	4,904	6,294
Net amounts of assets/liabilities for derivative open positions at fair value	7,853	10,191
Fair Value, Inputs, Level 2 [Member] | Derivative Assets	'	'
Derivatives, Fair Value [Line Items]	'	'
Receivable from banks and brokers	222,164	237,414
Fair Value, Inputs, Level 2 [Member] | Derivative Liabilities	'	'
Derivatives, Fair Value [Line Items]	'	'
Cash Collateral	$931,187	$868,542

ADDITIONAL_FINANCIAL_INFORMATI6

ADDITIONAL FINANCIAL INFORMATION - Notional Values of Derivative Instruments (Detail) (USD $)	Mar. 31, 2014	Dec. 31, 2013
In Thousands, unless otherwise specified
Notional amounts of derivative open long positions	'	'
Derivative [Line Items]	'	'
Notional amounts of derivative open long positions	$3,788,820	$3,546,869
Notional amounts of derivative open long positions | Foreign currency exchange contracts	'	'
Derivative [Line Items]	'	'
Notional amounts of derivative open long positions	3,176,785	3,031,742
Notional amounts of derivative open long positions | CFD contracts	'	'
Derivative [Line Items]	'	'
Notional amounts of derivative open long positions	611,108	514,058
Notional amounts of derivative open long positions | Metal contracts	'	'
Derivative [Line Items]	'	'
Notional amounts of derivative open long positions	927	1,069
Notional amounts of derivative open short positions	'	'
Derivative [Line Items]	'	'
Notional amounts of derivative open long positions	3,770,207	4,020,818
Notional amounts of derivative open short positions | Foreign currency exchange contracts	'	'
Derivative [Line Items]	'	'
Notional amounts of derivative open long positions	3,742,539	4,000,937
Notional amounts of derivative open short positions | CFD contracts	'	'
Derivative [Line Items]	'	'
Notional amounts of derivative open long positions	27,460	19,201
Notional amounts of derivative open short positions | Metal contracts	'	'
Derivative [Line Items]	'	'
Notional amounts of derivative open long positions	$208	$680

ADDITIONAL_FINANCIAL_INFORMATI7

ADDITIONAL FINANCIAL INFORMATION - Net Gains Losses with Respect to Derivative Instruments (Detail) (USD $)	3 Months Ended
In Thousands, unless otherwise specified	Mar. 31, 2014	Mar. 31, 2013
Derivative [Line Items]	'	'
Net gains (losses) on derivative instruments, total	$47,050	$35,313
Foreign currency exchange contracts	'	'
Derivative [Line Items]	'	'
Net gains (losses) on derivative instruments	36,585	27,204
CFD contracts	'	'
Derivative [Line Items]	'	'
Net gains (losses) on derivative instruments	6,261	5,610
Metal contracts	'	'
Derivative [Line Items]	'	'
Net gains (losses) on derivative instruments	$4,204	$2,499

ADDITIONAL_FINANCIAL_INFORMATI8

ADDITIONAL FINANCIAL INFORMATION - Property and Equipment Including Leasehold Improvements and Capitalized Software Development Costs (Detail) (USD $)	Mar. 31, 2014	Dec. 31, 2013
In Thousands, unless otherwise specified
Property, Plant and Equipment [Line Items]	'	'
Property and equipment	$46,822	$43,564
Less: Accumulated depreciation and amortization	-29,849	-26,446
Property and equipment, net	16,973	17,118
Software	'	'
Property, Plant and Equipment [Line Items]	'	'
Property and equipment	28,797	25,913
Computer equipment	'	'
Property, Plant and Equipment [Line Items]	'	'
Property and equipment	6,874	6,649
Leasehold improvements	'	'
Property, Plant and Equipment [Line Items]	'	'
Property and equipment	6,562	6,560
Telephone equipment	'	'
Property, Plant and Equipment [Line Items]	'	'
Property and equipment	721	714
Office equipment	'	'
Property, Plant and Equipment [Line Items]	'	'
Property and equipment	2,100	1,994
Furniture and fixtures	'	'
Property, Plant and Equipment [Line Items]	'	'
Property and equipment	1,122	1,108
Website development costs	'	'
Property, Plant and Equipment [Line Items]	'	'
Property and equipment	$646	$626

ADDITIONAL_FINANCIAL_INFORMATI9

ADDITIONAL FINANCIAL INFORMATION - Additional Information (Detail) (USD $)

3 Months Ended

12 Months Ended

3 Months Ended

6 Months Ended

Mar. 31, 2014

Mar. 31, 2013

Dec. 31, 2004

Dec. 31, 2003

Dec. 31, 2013

Mar. 31, 2014

Mar. 31, 2014

Mar. 31, 2014

Mar. 31, 2014

Sep. 24, 2013

Sep. 24, 2013

Mar. 31, 2014

Global Assets Advisors, LLC

Top Third Ag Marketing, LLC

Global Futures & Forex Ltd

Global Futures & Forex Ltd

Global Futures & Forex Ltd

Global Futures & Forex Ltd

Global Futures & Forex Ltd

Accrued Expenses and Other Liabilities

Other Current Assets

Business Acquisition [Line Items]

'

'

'

'

'

'

'

'

'

'

'

'

Business Combination, Contingent Consideration, Liability

'

'

'

'

'

'

'

$20,000,000

$20,000,000

'

'

'

Increase in goodwill

'

'

'

'

'

5,500,000

4,700,000

6,200,000

'

'

'

'

Total liabilities assumed

'

'

'

'

'

561,000

364,000

'

'

252,258,000

5,400,000

'

Liabilities paid

'

'

'

'

'

'

'

'

3,200,000

'

'

'

Indemnification Asset

'

'

'

'

'

'

'

'

'

'

'

8,600,000

Depreciation and amortization expense

2,710,000

1,613,000

'

'

'

'

'

'

'

'

'

'

Domain name acquired amount

'

'

100,000

200,000

'

'

'

'

'

'

'

'

Purchased intangible amortization

1,039,000

636,000

'

'

'

'

'

'

'

'

'

'

Goodwill

$26,114,000

'

'

'

$14,183,000

$5,495,000

$4,696,000

'

'

$6,194,000

'

'

Recovered_Sheet1

ADDITIONAL FINANCIAL INFORMATION - Definite-Lived Intangible Assets (Detail) (USD $)	Mar. 31, 2014	Dec. 31, 2013
In Thousands, unless otherwise specified
Intangible Assets by Major Class [Line Items]	'	'
Cost	$46,946	$50,995
Accumulated Amortization	6,272	16,529
Customer list	'	'
Intangible Assets by Major Class [Line Items]	'	'
Cost	18,873	21,556
Accumulated Amortization	4,392	13,594
Technology	'	'
Intangible Assets by Major Class [Line Items]	'	'
Cost	26,960	26,930
Accumulated Amortization	1,611	910
Trademark	'	'
Intangible Assets by Major Class [Line Items]	'	'
Cost	1,010	650
Accumulated Amortization	173	173
Non-compete agreement	'	'
Intangible Assets by Major Class [Line Items]	'	'
Cost	103	1,859
Accumulated Amortization	$96	$1,852

Recovered_Sheet2

ADDITIONAL FINANCIAL INFORMATION - Other Assets (Detail) (USD $)	Mar. 31, 2014	Dec. 31, 2013
In Thousands, unless otherwise specified
Deferred Costs, Capitalized, Prepaid, and Other Assets Disclosure [Abstract]	'	'
Business Combination, Indemnification Assets, Amount as of Acquisition Date	$8,596	$8,596
Accounts Receivable, Net	5,803	4,704
Vendor and security deposits	3,765	3,344
Current tax receivable	8,354	4,547
Deferred tax assets	6,342	4,922
Investment in Kapitall, Inc.	50	50
Miscellaneous receivables	2,913	2,446
Other assets, net	$35,823	$28,609

RELATED_PARTY_TRANSACTIONS_Add

RELATED PARTY TRANSACTIONS - Additional Information (Detail) (Management, USD $)	Mar. 31, 2014	Dec. 31, 2013
In Millions, unless otherwise specified
Management	'	'
Related Party Transaction [Line Items]	'	'
Payables to customers	$3.20	$3

ACQUISITIONS_Additional_Inform

ACQUISITIONS - Additional Information (Details) (USD $)	1 Months Ended
In Thousands, unless otherwise specified	Mar. 31, 2014
Global Assets Advisors, LLC	'
Business Acquisition [Line Items]	'
Percentage of company acquired	55.00%
Total purchase price	$5,511
Top Third Ag Marketing, LLC	'
Business Acquisition [Line Items]	'
Percentage of company acquired	55.00%
Total purchase price	$4,749

ACQUISITIONS_Schedule_of_Purch

ACQUISITIONS - Schedule of Purchase Price (Detail) (USD $)	3 Months Ended		1 Months Ended		0 Months Ended
In Thousands, unless otherwise specified	Mar. 31, 2014	Mar. 31, 2013	Mar. 31, 2014	Mar. 31, 2014	Sep. 24, 2013
			Global Assets Advisors, LLC	Top Third Ag Marketing, LLC	Global Futures & Forex Ltd
Business Acquisition [Line Items]	'	'	'	'	'
Cash	'	'	$4,270	$3,178	$40,000
Payment for excess cash adjustment	'	'	'	'	2,160
Loan payable	'	'	'	1,571	33,200
Common stock issued as consideration for GAA	1,241	0	1,241	'	34,771
Total purchase price	'	'	$5,511	$4,749	$110,131

ACQUISITIONS_Allocation_of_Pur

ACQUISITIONS - Allocation of Purchase Price to Fair Value of Assets and Liabilities (Detail) (USD $)	Mar. 31, 2014	Dec. 31, 2013	Mar. 31, 2014	Mar. 31, 2014	Mar. 31, 2014	Mar. 31, 2014	Mar. 31, 2014	Mar. 31, 2014	Sep. 24, 2013	Sep. 24, 2013	Sep. 24, 2013
In Thousands, unless otherwise specified			Global Assets Advisors, LLC	Global Assets Advisors, LLC	Global Assets Advisors, LLC	Top Third Ag Marketing, LLC	Top Third Ag Marketing, LLC	Top Third Ag Marketing, LLC	Global Futures & Forex Ltd	Global Futures & Forex Ltd	Global Futures & Forex Ltd
				Customer list	Trade name		Customer list	Trade name		Software	Customer relationships
Business Acquisition [Line Items]	'	'	'	'	'	'	'	'	'	'	'
Non-controlling interest	'	'	$4,509	'	'	$3,886	'	'	'	'	'
Cash and cash equivalents acquired	'	'	934	'	'	13	'	'	15,781	'	'
Cash and cash equivalents held for customers acquired	'	'	'	'	'	'	'	'	228,419	'	'
Receivable from brokers	'	'	438	'	'	300	'	'	61,028	'	'
Property and equipment	'	'	184	'	'	'	'	'	7,515	'	'
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Assets, Prepaid Expense and Other Assets	'	'	157	'	'	'	'	'	'	'	'
Other current assets	'	'	3	'	'	'	'	'	15,002	'	'
Total tangible assets	'	'	1,716	'	'	313	'	'	327,745	'	'
Total liabilities assumed	'	'	561	'	'	364	'	'	252,258	'	'
Net assets	'	'	1,155	'	'	-51	'	'	75,487	'	'
Consideration less net assets	'	'	'	'	'	'	'	'	34,644	'	'
Identifiable intangible assets	'	'	3,370	3,100	270	3,990	3,900	90	28,450	25,300	3,150
Goodwill	$26,114	$14,183	$5,495	'	'	$4,696	'	'	$6,194	'	'

ACQUISITIONS_Pro_Forma_Revenue

ACQUISITIONS - Pro Forma Revenue and Net Income (Details) (USD $)	3 Months Ended
In Thousands, unless otherwise specified	Mar. 31, 2014	Mar. 31, 2013
Business Acquisition, Pro Forma Information, Nonrecurring Adjustment [Line Items]	'	'
Total non-interest revenue	$76,933	$49,754
Interest revenue	363	118
Interest Expense	1,512	107
Total net interest revenue	-1,149	11
Depreciation and amortization	2,710	1,613
Purchased intangible amortization	1,039	636
Total	73,670	44,625
INCOME BEFORE INCOME TAX EXPENSE	2,114	5,140
Income tax expense	438	861
Global Futures & Forex, Ltd.	'	'
Business Acquisition, Pro Forma Information, Nonrecurring Adjustment [Line Items]	'	'
Total non-interest revenue	'	82,054
Interest revenue	'	202
Interest Expense	'	110
Total net interest revenue	'	92
Net revenue	'	82,146
Depreciation and amortization	'	2,137
Purchased intangible amortization	'	1,426
Other expense items	'	75,062
Total	'	78,625
INCOME BEFORE INCOME TAX EXPENSE	'	3,521
Income tax expense	'	1,320
Net income	'	$2,201

ACQUISITIONS_Restructuring_Det

ACQUISITIONS - Restructuring (Details) (USD $)	3 Months Ended
In Thousands, unless otherwise specified	Mar. 31, 2014	Mar. 31, 2013
Restructuring Reserve [Roll Forward]	'	'
2014 restructuring expenses	$359	$0
Global Futures & Forex Ltd	'	'
Restructuring Reserve [Roll Forward]	'	'
Restructuring liability as of January 1, 2014	584	'
2014 restructuring expenses	359	'
Payments made in 2014	468	'
Liability as of March 31, 2014	$475	'

NONCONTROLLING_INTEREST_Detail

NON-CONTROLLING INTEREST (Details) (USD $)	3 Months Ended
In Thousands, unless otherwise specified	Mar. 31, 2014
Increase (Decrease) in Temporary Equity [Roll Forward]	'
Redeemable noncontrolling interest, beginning balance	$0
Noncontrolling interests related to acquisitions	8,395
Net income attributable to noncontrolling interests	38
Redeemable noncontrolling interest, ending balance	$8,433
Top Third Ag Marketing, LLC	'
Redeemable Noncontrolling Interest [Line Items]	'
Percentage of company acquired	55.00%
Redeemable noncontrolling interest retained by noncontrolling owners	45.00%
Global Assets Advisors, LLC	'
Redeemable Noncontrolling Interest [Line Items]	'
Percentage of company acquired	55.00%
Redeemable noncontrolling interest retained by noncontrolling owners	45.00%

CONVERTIBLE_SENIOR_NOTES_Addit

CONVERTIBLE SENIOR NOTES - Additional Information (Details) (Convertible Debt [Member], USD $)	0 Months Ended
	Nov. 27, 2013
Convertible Debt [Member]	'
Debt Instrument [Line Items]	'
Debt Instrument, Face Amount	$80,000,000
Debt Instrument, Interest Rate, Stated Percentage	4.13%
Proceeds from Convertible Debt	$77,900,000

CONVERTIBLE_SENIOR_NOTES_Sched

CONVERTIBLE SENIOR NOTES - Schedule of Liability and Equity Components (Details) (Convertible Debt [Member], USD $)	Mar. 31, 2014	Dec. 31, 2013
In Thousands, unless otherwise specified
Convertible Debt [Member]	'	'
Debt Instrument [Line Items]	'	'
Liability component - principal	$80,000	$80,000
Deferred bond discount	-13,526	-14,640
Liability component - net carrying value	66,474	65,360
Additional paid in capital	12,572	12,572
Discount attributable to equity	-425	-425
Equity component	$12,147	$12,147

CONVERTIBLE_SENIOR_NOTES_Sched1

CONVERTIBLE SENIOR NOTES - Schedule of Interest Expense (Details) (USD $)	3 Months Ended
In Thousands, unless otherwise specified	Mar. 31, 2014	Mar. 31, 2013
Debt Instrument [Line Items]	'	'
Interest expense - amortization of deferred bond discount and costs	$88	$0
Convertible Debt [Member]	'	'
Debt Instrument [Line Items]	'	'
Interest expense - stated coupon rate	825	'
Interest expense - amortization of deferred bond discount and costs	612	'
Total interest expense - convertible note	$1,437	'

SHARE_BASED_COMPENSATION_Addit

SHARE BASED COMPENSATION - Additional Information (Detail) (Employees And Non Employee Directors, USD $)	3 Months Ended
In Millions, unless otherwise specified	Mar. 31, 2014	Mar. 31, 2013
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]	'	'
Stock options, shares granted	0.1	0.3
Stock options, values granted	$0.40	$0.60
Restricted Stock	'	'
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]	'	'
Restricted stock, shares granted	0.4	0.8
Restricted stock, values granted	$3.70	$3.60

SHARE_BASED_COMPENSATION_Assum

SHARE BASED COMPENSATION - Assumptions for Stock Options Granted (Detail)	3 Months Ended
	Mar. 31, 2014	Mar. 31, 2013
Valuation Assumptions	'	'
Risk-free rate	1.39%	0.80%
Expected volatility	51.75%	48.80%
Expected term (years)	'4 years 9 months	'4 years 9 months
Dividend yield	2.01%	4.90%

EARNINGS_PER_COMMON_SHARE_Addi

EARNINGS PER COMMON SHARE - Additional Information (Detail)	3 Months Ended
In Millions, unless otherwise specified	Mar. 31, 2014	Mar. 31, 2013
Earnings Per Share [Abstract]	'	'
Anti-dilutive stock options excluded from calculation of diluted earnings per share	1.1	0.6

EARNINGS_PER_COMMON_SHARE_Comp

EARNINGS PER COMMON SHARE - Computation of Earnings Per Share (Detail) (USD $)	3 Months Ended
In Thousands, except Share data, unless otherwise specified	Mar. 31, 2014		Mar. 31, 2013
Earnings Per Share [Abstract]	'		'
Net income	$1,638		$4,279
Adjustment	0	[1]	-154	[1]
Net income applicable to GAIN common shareholders	$1,638		$4,125
Weighted average common shares outstanding:	'		'
Basic weighted average common shares outstanding	39,543,586		35,052,375
Effect of dilutive securities:	'		'
Stock options (in shares)	956,445		851,451
RSUs/RSAs (in shares)	2,127,597		1,427,766
Diluted weighted average common shares outstanding	42,627,628		37,331,592
Earnings per common share	'		'
Basic (usd per share)	$0.04		$0.12
Diluted (usd per share)	$0.04		$0.11
[1]	During the period an adjustment to retained earnings was made, reflecting the amounts deemed uncollectible associated with previously issued preferred stock, which was converted to common stock immediately prior to the IPO.

LEGAL_Additional_Information_D

LEGAL - Additional Information (Detail)	Feb. 28, 2011	Jun. 15, 2011	Aug. 30, 2013
	cases	Open E Cry Limited Liability Company	Patent Infringement [Member]
		patents	patents
Long-term Purchase Commitment [Line Items]	'	'	'
Number of alleged patent infringement lawsuit against the company	11	12	'
Loss Contingency, Number of Patents Vacated and Remanded	'	'	4

INCOME_TAXES_Additional_Inform

INCOME TAXES - Additional Information (Detail) (USD $)	3 Months Ended
	Mar. 31, 2014	Mar. 31, 2013
Income Tax Disclosure [Abstract]	'	'
Provision for income taxes expense (benefit)	$438,000	$861,000
Effective income tax rates	20.70%	16.90%
Reduction of provision for income taxes	$600,000	'

REGULATORY_REQUIREMENTS_Minimu

REGULATORY REQUIREMENTS - Minimum Regulatory Capital Subsidiaries Required to Maintain (Detail) (USD $)	3 Months Ended
In Millions, unless otherwise specified	Mar. 31, 2014
Schedule Of Compliance With Regulatory Capital Requirements For Broker Dealer [Line Items]	'
Minimum Regulatory Capital Requirements	$71.70
Capital Levels Maintained	146.1
Excess Net Capital	74.4
Percent of Requirement Maintained	204.00%
Decrease in regulatory requirement	12.5
GFT Global Markets UK Ltd.	'
Schedule Of Compliance With Regulatory Capital Requirements For Broker Dealer [Line Items]	'
Minimum Regulatory Capital Requirements	10.8
Capital Levels Maintained	47.6
Excess Net Capital	36.8
Percent of Requirement Maintained	442.00%
GAIN Capital Group, LLC	'
Schedule Of Compliance With Regulatory Capital Requirements For Broker Dealer [Line Items]	'
Minimum Regulatory Capital Requirements	24.7
Capital Levels Maintained	35.4
Excess Net Capital	10.7
Percent of Requirement Maintained	143.00%
GAIN Capital-Forex.com U.K., Ltd.	'
Schedule Of Compliance With Regulatory Capital Requirements For Broker Dealer [Line Items]	'
Minimum Regulatory Capital Requirements	28.8
Capital Levels Maintained	35.7
Excess Net Capital	6.9
Percent of Requirement Maintained	124.00%
Forex.com Japan Co., Ltd.	'
Schedule Of Compliance With Regulatory Capital Requirements For Broker Dealer [Line Items]	'
Minimum Regulatory Capital Requirements	3.1
Capital Levels Maintained	9.2
Excess Net Capital	6.1
Percent of Requirement Maintained	297.00%
GAIN Capital-Forex.com Hong Kong, Ltd.	'
Schedule Of Compliance With Regulatory Capital Requirements For Broker Dealer [Line Items]	'
Minimum Regulatory Capital Requirements	1.9
Capital Levels Maintained	3.8
Excess Net Capital	1.9
Percent of Requirement Maintained	197.00%
GFT Global Markets Asia Pte., Ltd.	'
Schedule Of Compliance With Regulatory Capital Requirements For Broker Dealer [Line Items]	'
Minimum Regulatory Capital Requirements	0
Capital Levels Maintained	2
Excess Net Capital	2
Percent of Requirement Maintained	0.00%
Global Futures & Forex, Ltd.	'
Schedule Of Compliance With Regulatory Capital Requirements For Broker Dealer [Line Items]	'
Minimum Regulatory Capital Requirements	1
Capital Levels Maintained	7
Excess Net Capital	6
Percent of Requirement Maintained	700.00%
GAIN Capital Forex.com Australia, Pty. Ltd.	'
Schedule Of Compliance With Regulatory Capital Requirements For Broker Dealer [Line Items]	'
Minimum Regulatory Capital Requirements	0.9
Capital Levels Maintained	2.7
Excess Net Capital	1.8
Percent of Requirement Maintained	297.00%
GAIN Capital-Forex.com Canada Ltd.	'
Schedule Of Compliance With Regulatory Capital Requirements For Broker Dealer [Line Items]	'
Minimum Regulatory Capital Requirements	0.2
Capital Levels Maintained	1.7
Excess Net Capital	1.5
Percent of Requirement Maintained	736.00%
GAIN Capital Securities, Inc.	'
Schedule Of Compliance With Regulatory Capital Requirements For Broker Dealer [Line Items]	'
Minimum Regulatory Capital Requirements	0.1
Capital Levels Maintained	0.5
Excess Net Capital	0.4
Percent of Requirement Maintained	966.00%
GAIN Global Markets, Inc.	'
Schedule Of Compliance With Regulatory Capital Requirements For Broker Dealer [Line Items]	'
Minimum Regulatory Capital Requirements	0.1
Capital Levels Maintained	0.3
Excess Net Capital	0.2
Percent of Requirement Maintained	306.00%
Global Assets Advisors, LLC	'
Schedule Of Compliance With Regulatory Capital Requirements For Broker Dealer [Line Items]	'
Minimum Regulatory Capital Requirements	0.1
Capital Levels Maintained	0.2
Excess Net Capital	$0.10
Percent of Requirement Maintained	174.00%

SEGMENT_INFORMATION_Additional

SEGMENT INFORMATION - Additional Information (Detail)	3 Months Ended
	Mar. 31, 2014
	Segment
Segment Reporting [Abstract]	'
Number of operating segments	1

SUBSEQUENT_EVENTS_Additional_I

SUBSEQUENT EVENTS - Additional Information (Detail) (Subsequent event, USD $)	0 Months Ended
	9-May-14
Subsequent event	'
Subsequent Event [Line Items]	'
Common stock dividend declared per share	$0.05