10-Q

United States

Securities and Exchange Commission

Washington, D.C. 20549

Form 10-Q

QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d)

OF THE SECURITIES EXCHANGE ACT OF 1934

For the quarterly period ended March 31, 2014

Commission file number 000-24498

DIAMOND HILL INVESTMENT GROUP, INC.

(Exact name of registrant as specified in its charter)

Ohio	65-0190407
(State of incorporation)	(I.R.S. Employer Identification No.)

325 John H. McConnell Blvd, Suite 200, Columbus, Ohio 43215

(Address, including Zip Code, of principal executive offices)

(614) 255-3333

(Registrant’s telephone number, including area code)

Indicate by check mark whether the registrant (1) has filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during the preceding 12 months, and (2) has been subject to such filing requirements for the past 90 days.     Yes:  x    No:  ¨

Indicate by check mark whether the registrant has submitted electronically and posted on its corporate Web site, if any, every Interactive Data File required to be submitted and posted pursuant to Rule 405 of Regulation S-T during the preceding 12 months (or for such shorter period that the registrant was required to submit and post such files).     Yes  x    No  ¨

Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, or a smaller reporting company. See the definitions of “large accelerated filer,” “accelerated filer” and “smaller reporting company” in Rule 12b-2 of the Exchange Act.

Large accelerated filer	¨	Accelerated filer	x
Non-accelerated filer	¨	Smaller reporting company	¨

Indicate by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the Exchange Act).     Yes:  ¨    No:  x

The number of shares outstanding of the issuer’s common stock, as of April 25, 2014, is 3,297,255 shares.

DIAMOND HILL INVESTMENT GROUP, INC.

		PAGE
Part I: FINANCIAL INFORMATION		3
Item 1.	Consolidated Financial Statements	3
Item 2.	Management’s Discussion and Analysis of Financial Condition and Results of Operations	16
Item 3.	Quantitative and Qualitative Disclosures About Market Risk	22
Item 4.	Controls and Procedures	22
Part II: OTHER INFORMATION		23
Item 1.	Legal Proceedings	23
Item 1A.	Risk Factors	23
Item 2.	Unregistered Sales of Equity Securities and Use of Proceeds	23
Item 3.	Defaults Upon Senior Securities	23
Item 4.	Mine Safety Disclosures	23
Item 5.	Other Information	23
Item 6.	Exhibits	24
Signatures		25

2

PART I: FINANCIAL INFORMATION

ITEM 1: Consolidated Financial Statements

Diamond Hill Investment Group, Inc.

Consolidated Balance Sheets

	3/31/2014			12/31/2013
	(Unaudited)
ASSETS
Cash and cash equivalents	$	11,264,827		$	33,106,972
Investment portfolio	34,583,720			18,726,070
Accounts receivable	13,396,598			13,002,295
Prepaid expenses	1,472,954			1,489,713
Furniture and equipment, net of depreciation	945,394			964,943
Income tax receivable	3,425,688			—
Deferred taxes	5,626,716			8,063,425
Total assets	$	70,715,897		$	75,353,418
LIABILITIES AND SHAREHOLDERS’ EQUITY
Liabilities
Accounts payable and accrued expenses	$	3,187,625		$	4,049,240
Accrued incentive compensation	6,100,000			19,606,881
Deferred compensation	5,206,252			1,287,745
Income taxes payable	—			5,466,562
Total liabilities	14,493,877			30,410,428
Commitments and contingencies	—			—
Shareholders’ Equity
Common stock, no par value 7,000,000 shares authorized; 3,296,297 issued and outstanding at March 31, 2014 (inclusive of 309,762 unvested shares); 3,257,247 issued and outstanding at December 31, 2013 (inclusive of 312,099 unvested shares);	79,163,115			72,642,933
Preferred stock, undesignated, 1,000,000 shares authorized and unissued	—			—
Deferred equity compensation	(12,388,310		)	(11,397,560		)
Accumulated deficit	(10,552,785		)	(16,302,383		)
Total shareholders’ equity	56,222,020			44,942,990
Total liabilities and shareholders’ equity	$	70,715,897		$	75,353,418
Book value per share	$	17.06		$	13.80

The accompanying notes are an integral part of these consolidated financial statements.

3

Diamond Hill Investment Group, Inc.

Consolidated Statements of Income (unaudited)

	Three Months Ended   March 31,
	2014			2013
REVENUES:
Investment advisory	$	19,910,807		$	15,853,994
Mutual fund administration, net	3,278,290			2,521,381
Total revenue	23,189,097			18,375,375
OPERATING EXPENSES:
Compensation and related costs	11,871,954			9,513,412
General and administrative	1,581,356			1,392,468
Sales and marketing	491,882			434,287
Mutual fund administration	672,121			407,593
Total operating expenses	14,617,313			11,747,760
NET OPERATING INCOME	8,571,784			6,627,615
Investment income	516,529			1,824,659
INCOME BEFORE TAXES	9,088,313			8,452,274
Income tax provision	(3,338,715		)	(3,121,541		)
NET INCOME	$	5,749,598		$	5,330,733
Earnings per share
Basic	$	1.82		$	1.67
Diluted	$	1.78		$	1.67
Weighted average shares outstanding
Basic	3,165,940			3,197,476
Diluted	3,230,900			3,197,476

The accompanying notes are an integral part of these consolidated financial statements.

4

Diamond Hill Investment Group, Inc.

Consolidated Statements of Cash Flows (unaudited)

	Three Months Ended   March 31,
	2014			2013
CASH FLOWS FROM OPERATING ACTIVITIES:
Net Income	$	5,749,598		$	5,330,733
Adjustments to reconcile net income to net cash used in operating activities:
Depreciation on furniture and equipment	76,105			80,199
Stock-based compensation	1,924,466			1,486,008
Increase in accounts receivable	(394,303		)	(1,080,720		)
Change in current income taxes	(8,725,576		)	678,466
Change in deferred income taxes	2,436,709			313,075
Net investment gain	(549,449		)	(1,889,425		)
Decrease in accrued compensation	(5,835,286		)	(6,376,220		)
Excess income tax benefit from stock-based compensation	(166,674		)	—
Other changes in assets and liabilities	(844,856		)	(707,787		)
Net cash used in operating activities	(6,329,266		)	(2,165,671		)
CASH FLOWS FROM INVESTING ACTIVITIES:
Purchase of furniture and equipment	(56,556		)	(305,257		)
Cost of investments purchased and other portfolio activity	(15,308,201		)	—
Net cash used in investing activities	(15,364,757		)	(305,257		)
CASH FLOWS FROM FINANCING ACTIVITIES:
Shares withheld related to employee tax withholding	(314,796		)	—
Excess income tax benefit from stock-based compensation	166,674			—
Net cash used in financing activities	(148,122		)	—
CASH AND CASH EQUIVALENTS
Net change during the period	(21,842,145		)	(2,470,928		)
At beginning of period	33,106,972			7,870,908
At end of period	$	11,264,827		$	5,399,980
Supplemental cash flow information:
Income taxes paid	$	9,700,831		$	2,130,000
Supplemental disclosure of non-cash transactions:
Common stock issued as incentive compensation	3,753,088			4,606,008

The accompanying notes are an integral part of these consolidated financial statements.

5

Diamond Hill Investment Group, Inc.

Notes to Consolidated Financial Statements (unaudited)

Note 1 Business and Organization

Diamond Hill Investment Group, Inc. (the “Company”), an Ohio Corporation, derives its consolidated revenues and net income from investment advisory and fund administration services. The Company has three operating subsidiaries.

Diamond Hill Capital Management, Inc. (“DHCM”), an Ohio corporation, is a wholly owned subsidiary of the Company and a registered investment adviser. DHCM is the investment adviser to the Diamond Hill Funds (the “Funds”), a series of open-end mutual funds, private investment funds (“Private Funds”), and other institutional accounts. In addition, DHCM is administrator for the Funds.

Beacon Hill Fund Services, Inc. (“BHFS”), an Ohio corporation, is a wholly owned subsidiary of the Company. BHFS provides certain compliance, treasury, and other fund administration services to mutual fund companies. BHIL Distributors, Inc. (“BHIL”), an Ohio corporation, is a wholly owned subsidiary of BHFS. BHIL provides underwriting to mutual funds. BHFS and BHIL collectively operate as Beacon Hill.

Note 2 Significant Accounting Policies

The preparation of financial statements in conformity with accounting principles generally accepted in the United States of America requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities, disclosure of contingent assets and liabilities, and the reported amounts of revenues and expenses for the periods. Actual results could differ from those estimates. Certain prior period amounts and disclosures have been reclassified to conform to the current period financial presentation. Book value per share is computed by dividing total shareholders’ equity by the number of shares issued and outstanding at the end of the measurement period. The following is a summary of the Company’s significant accounting policies:

Principles of Consolidation

The accompanying consolidated financial statements include the operations of the Company and its subsidiaries. All material inter-company transactions and balances have been eliminated in consolidation.

Segment Information

Management has determined that the Company operates in one business segment, namely providing investment management and administration services to mutual funds, institutional accounts, and private investment funds. Therefore, no disclosures relating to operating segments are required in annual or interim financial statements.

Cash and Cash Equivalents

Cash and cash equivalents include demand deposits and money market mutual funds.

Accounts Receivable

Accounts receivable are recorded when they are due and are presented on the balance sheet net of any allowance for doubtful accounts. Accounts receivable are written off when they are determined to be uncollectible. Any allowance for doubtful accounts is estimated based on the Company’s historical losses, existing conditions in the industry, and the financial stability of those individuals or entities that owe the receivable. No allowance for doubtful accounts was deemed necessary at March 31, 2014 or December 31, 2013.

Valuation of Investment Portfolio

Investments held by the Company are valued based upon the definition of Level 1 inputs and Level 2 inputs. Level 1 inputs are defined as fair values which use quoted prices in active markets for identical assets or liabilities. Level 2 inputs are defined as quoted prices in markets that are not considered to be active for identical assets or liabilities, quoted prices in active markets for similar assets or liabilities, and inputs other than quoted prices that are directly observable or that may be corroborated indirectly with observable market data. The following table summarizes the values of the Company’s investments based upon Level 1 and Level 2 inputs as of March 31, 2014 and December 31, 2013:

6

Note 2 Significant Accounting Policies (Continued)

	March 31, 2014		December 31, 2013
Level 1 Inputs	$	36,869,820	$	32,528,367
Level 2 Inputs	4,520,041		3,001,461

Level 1 investments are all registered investment companies (mutual funds) and include $6.8 million and $16.8 million, respectively, of money market mutual funds that the Company classifies as cash equivalents. Level 2 investments are all limited partnerships whose net asset value was determined based upon readily available market quotations of individual securities held by the partnerships. The Company determines transfers between fair value hierarchy levels at the end of the reporting period. There were no transfers in or out of the levels.

Limited Partnership Interests

DHCM is the managing member of Diamond Hill General Partner, LLC (the “General Partner”), the general partner of Diamond Hill Investment Partners, L.P. (“DHIP”), Diamond Hill Global Fund, L.P. ("DHGF"), and Diamond Hill Valuation-Weighted 500, L.P. (“DHVW”) (collectively, the “Partnerships”), each a limited partnership whose underlying assets consist of marketable securities.

DHCM, in its role as managing member of the General Partner, has the power to direct each Partnership’s economic activities and the right to receive investment advisory and performance incentive fees that may be significant to the Partnerships. The Company evaluated these Partnerships to determine whether or not to consolidate the entities in accordance with FASB ASC 810, Consolidation. Certain of these Partnerships are considered to be variable interest entities (“VIEs”) while others are considered to be voting rights entities (“VREs”), both of which are subject to consolidation consideration. The Company would consolidate VIEs where the Company is considered the primary beneficiary or VREs where the General Partner is considered to control the Partnership. For the Partnerships that were considered VIEs, the Company was not deemed to be the primary beneficiary. For the Partnerships that were considered VREs, it was determined that the DHCM in its role of managing member of the General Partner did not control the Partnerships. Therefore, the investments are accounted for under the equity method rather than being consolidated in the accompanying financial statements.

DHCM’s investments in these Partnerships are reported as a component of the Company’s investment portfolio, valued at DHCM’s proportionate interest in the net asset value of the marketable securities held by the Partnerships. Gains and losses attributable to changes in the value of DHCM’s interests in the Partnerships are included in the Company’s reported investment income. The Company’s exposure to loss as a result of its involvement with the Partnerships is limited to the amount of its investments. DHCM is not obligated to provide financial or other support to the Partnerships, other than its investments to date and its contractually provided investment advisory responsibilities, and has not provided such support. The Company has not provided liquidity arrangements, guarantees or other commitments to support the Partnerships’ operations, and the Partnerships’ creditors and interest holders have no recourse to the general credit of the Company.

Certain board members, officers and employees of the Company invest in DHIP and are not subject to a management fee or an incentive fee. These individuals receive no remuneration as a result of their personal investment in DHIP. The capital of the General Partner is not subject to a management fee or an incentive fee.

Furniture and Equipment

Furniture and equipment, consisting of computer equipment, furniture, and fixtures, are carried at cost less accumulated depreciation. Depreciation is calculated using the straight-line method over estimated lives of three to seven years.

Deferred Compensation Liability

Deferred compensation liability represents compensation that will be paid out upon satisfactory completion of certain performance-based and/or time-based criteria specified in employee award agreements or deferred compensation elections.

7

Note 2 Significant Accounting Policies (Continued)

Revenue Recognition – General

The Company earns substantially all of its revenue from investment advisory and fund administration services. Investment advisory and administration fees, generally calculated as a percentage of assets under management (“AUM”), are recorded as revenue as services are performed. In addition to fixed fees based on a percentage of AUM, certain client accounts also provide periodic variable incentive fees.

Revenue Recognition – Incentive Revenue

The Company manages certain client accounts that provide for variable incentive fees. These fees are currently based on client investment results over rolling five year periods. For variable incentive fees based on a formula, there are two methods by which incentive revenue may be recorded. Under “Method 1”, incentive fees are recorded at the end of the contract measurement period; under “Method 2”, the incentive fees are recorded periodically and calculated as the amount that would be due under the formula at any point in time as if the contract was terminated at that date. Management has chosen Method 1, in which incentive fees are recorded at the end of the contract measurement period for the specific client in which the incentive fee applies. The table below shows AUM subject to incentive fees and the incentive fees, as calculated under each of the above methods:

	As Of March 31,
	2014		2013
AUM Contractual Period Ends:
Quarter Ended June 30, 2017	$	389,747,078	$	306,975,487
Quarter Ended December 31, 2018	92,348,018		—
Total AUM Subject to Incentive Fees	$	482,095,096	$	306,975,487

	For the Three Months Ended
	Ended March 31,
	2014		2013
Incentive Fees Under Method 1:
Contractual Period Ends:
Quarter Ended June 30, 2017	$	—	$	—
Quarter Ended December 31, 2018	—		—
Total Incentive Fees Under Method 1	$	—	$	—
Incentive Fees Under Method 2:
Contractual Period Ends:
Quarter Ended June 30, 2017	$	4,647,204	$	1,146,468
Quarter Ended December 31, 2018	—		—
Total Incentive Fees Under Method 2	$	4,647,204	$	1,146,468

Method 2 in the table illustrates the revenue that would be recognized if the variable incentive fee contract was terminated as of March 31, 2014 or 2013. The contractual end dates highlight the time remaining until the variable incentive fees are scheduled to be earned. The amounts under Method 2 above will increase or decrease based on future client investment results through the contractual period end, and there is no assurance that the above amounts will ultimately be earned.

Revenue Recognition – Mutual Fund Administration

DHCM has an administrative and transfer agency services agreement with the Funds, under which DHCM performs certain services for each Fund. These services include mutual fund administration, fund accounting, transfer agency and other related functions. For performing these services, each Fund pays DHCM a fee, which is calculated using an annual rate of 0.25% for Class A, C, and I shares and 0.10% for Class Y shares times the average daily net assets of each respective series and share class.

8

Note 2 Significant Accounting Policies (Continued)

The Funds have selected and contractually engaged certain vendors to fulfill various services to benefit the Funds’ shareholders or to satisfy regulatory requirements of the Funds. These services include, among others, required shareholder mailings, federal and state registrations, and legal and audit services. DHCM, in fulfilling a portion of its role under the administration agreement with the Funds, acts as agent to pay these obligations of the Funds. Each vendor is independently responsible for fulfillment of the services it has been engaged to provide and negotiates fees and terms with the management and board of trustees of the Funds. The fee that each Fund pays to DHCM is reviewed annually by the Funds’ board of trustees and specifically takes into account the contractual expenses that DHCM pays on behalf of the Funds. As a result, DHCM is not involved in the delivery or pricing of these services and bears no risk related to these services. Revenue has been recorded net of these Fund related expenses, in accordance with FASB ASC 605-45, Revenue Recognition – Principal Agent Considerations. In addition, DHCM finances the upfront commissions which are paid to brokers who sell Class C shares of the Funds. As financer, DHCM advances the commission amount to be paid to the selling broker at the time of sale. These advances are capitalized and amortized over 12 months to correspond with the repayments DHCM receives from the principal underwriter to recoup this commission advancement.

Beacon Hill has underwriting and administrative service agreements with certain clients, including registered mutual funds. The fee arrangements vary from client to client based upon services provided and are recorded as revenue under mutual fund administration on the Consolidated Statements of Income. Part of Beacon Hill’s role as underwriter is to act as an agent on behalf of its mutual fund clients to receive 12b-1/service fees and commission revenue and facilitate the payment of those fees and commissions to third parties who provide services to the funds and their shareholders. The amount of 12b-1/service fees and commissions are determined by each mutual fund client, and Beacon Hill bears no financial risk related to these services. As a result, 12b-1/service fees and commission revenue has been recorded net of the expense payments to third parties, in accordance with the appropriate accounting treatment for this agency relationship.

Mutual fund administration gross and net revenue are summarized below:

	Three Months Ended   March 31,
	2014			2013
Mutual fund administration:
Administration revenue, gross	$	5,043,417		$	3,615,730
12b-1/service fees and commission revenue received from fund clients	2,481,771			1,812,388
12b-1/service fees and commission expense payments to third parties	(2,156,513		)	(1,588,813		)
Fund related expense	(2,089,175		)	(1,320,572		)
Revenue, net of fund related expenses	3,279,500			2,518,733
DHCM C-Share financing:
Broker commission advance repayments	173,890			56,658
Broker commission amortization	(175,100		)	(54,010		)
Financing activity, net	(1,210		)	2,648
Mutual fund administration revenue, net	$	3,278,290		$	2,521,381

Contractual Expense Reimbursements

During the fourth quarter of 2013, BHIL entered into an agreement with a third party investment adviser to provide staff to support the wholesaling functions and sales support services to distribute shares of the registered investment companies managed by the third party investment adviser and distributed by BHIL. Under the agreement, the third party investment adviser is obligated to reimburse BHIL for all expenses incurred in association with these efforts. The amount of expense incurred and reimbursed for the three months ended March 31, 2014 was $398,248. In addition, the third party investment adviser is obligated to reimburse BHIL for any contractual obligations entered into by BHIL as a result of this arrangement.

9

Note 2 Significant Accounting Policies (Continued)

Income Taxes

The Company accounts for current and deferred income taxes through an asset and liability approach. Deferred tax assets are recognized for deductible temporary differences and deferred tax liabilities are recognized for taxable temporary differences. Deferred tax assets are reduced by a valuation allowance when it is more likely than not that some portion or all of the deferred tax assets will not be realized. Deferred tax assets and liabilities are adjusted for the effects of changes in tax laws and rates on the date of enactment.

The Company is subject to examination by various federal, state and local jurisdictions for various tax periods. The Company’s income tax positions are based on research and interpretations of the income tax laws and rulings in each of the jurisdictions in which the Company does business. Due to the subjectivity of interpretations of laws and rulings in each jurisdiction, the differences and interplay in tax laws between those jurisdictions, as well as the inherent uncertainty in estimating the final resolution of complex tax audit matters, the Company’s estimates of income tax liabilities may differ from actual payments or assessments. The Company regularly assesses its position with regard to tax exposures and records liabilities for these uncertain tax positions and related interest and penalties, if any, according to the principles of FASB ASC 740, Income Taxes. The Company records interest and penalties, if any, within the income tax provision on the income statement. As of March 31, 2014, the Company has not recorded any liability for uncertain tax positions.

Earnings Per Share

Basic earnings per share (“EPS”) excludes dilution and is computed by dividing net income by the weighted average number of Common Shares outstanding for the period, which includes participating securities. Diluted EPS reflects the potential dilution of EPS due to unvested restricted stock grants with forfeitable rights to dividends. For the periods presented, the Company has unvested stock-based payment awards that contain both forfeitable and nonforfeitable rights to dividends.

Note 3 Investment Portfolio

As of March 31, 2014, the Company held investments (excluding money market funds, included with cash and cash equivalents) worth $34.6 million with an estimated cost basis of $26.9 million. The following table summarizes the fair value of these investments as of March 31, 2014 and December 31, 2013:

	As of
	March 31, 2014		December 31, 2013
Diamond Hill Small Cap Fund	$	90,981	$	—
Diamond Hill Small-Mid Cap Fund	91,490		—
Diamond Hill Mid Cap Fund	10,216,718		—
Diamond Hill Large Cap Fund	1,252,670		—
Diamond Hill Select Fund	672,607		—
Diamond Hill Long-Short Fund	1,429,487		1,287,745
Diamond Hill Financial Long-Short Fund	1,168,846		1,131,034
Diamond Hill Research Opportunities Fund	14,334,100		13,305,830
Diamond Hill Strategic Income Fund	806,780		—
Diamond Hill Investment Partners, L.P.	1,155		1,133
Diamond Hill Global Fund, L.P.	1,467,879		—
Diamond Hill Valuation-Weighted 500, L.P.	3,051,007		3,000,328
Total Investment Portfolio	$	34,583,720	$	18,726,070

The above investment portfolio includes the following amounts related to deferred compensation liabilities:

As of
March 31, 2014	December 31, 2013
5,206,252	1,287,745

10

Note 3 Investment Portfolio (Continued)

DHCM is the managing member of the General Partner, which is the general partner of the Partnerships. The underlying assets of the Partnerships are cash and marketable equity securities. Summary financial information, including the Company’s carrying value and income from the Partnerships, is as follows:

	As of
	March 31, 2014		December 31, 2013
Total partnership assets	$	122,544,481	$	122,106,403
Total partnership liabilities	22,455,061		25,217,600
Net partnership assets	$	100,089,420	$	96,888,803
DHCM’s portion of net assets	$	4,520,041	$	3,001,461

	For the   Three Months Ended		For the Year Ended
	March 31, 2014		December 31, 2013
Net partnership income	$	1,700,616	$	24,294,495
DHCM’s portion of net income	$	93,580	$	899,958

Note 4 Capital Stock

Common Shares

The Company has only one class of securities outstanding, Common Shares, no par value per share.

Authorization of Preferred Shares

The Company’s Amended and Restated Articles of Incorporation authorize the issuance of 1,000,000 shares of “blank check” preferred shares with such designations, rights and preferences, as may be determined from time to time by the Company’s Board of Directors. The Board of Directors is authorized, without shareholder approval, to issue preferred stock with dividend, liquidation, conversion, voting, or other rights, which could adversely affect the voting or other rights of the holders of the Common Shares. There were no shares of preferred stock issued or outstanding at either March 31, 2014 or December 31, 2013.

Note 5 Compensation Plans

Equity Incentive Plans

2011 Equity and Cash Incentive Plan

At the Company’s annual shareholder meeting on April 26, 2011, shareholders approved the 2011 Equity and Cash Incentive Plan (“2011 Plan”). The 2011 Plan is intended to facilitate the Company’s ability to attract and retain staff, provide additional incentive to employees, directors and consultants, and promote the success of the Company’s business. The 2011 Plan authorizes the issuance of 600,000 Common Shares of the Company in various forms of equity awards. The 2011 Plan also authorizes cash incentive awards. As of March 31, 2014, there were 193,392 Common Shares available for awards under the 2011 Plan. The 2011 Plan provides that the Board of Directors, or a committee appointed by the Board, may grant awards and otherwise administer the 2011 Plan. Restricted stock units and restricted stock grants issued under the 2011 Plan, which vest over time, are recorded as deferred compensation in the equity section of the balance sheet on the grant date and then recognized as compensation expense based on the grant date price over the vesting period of the respective grant. Stock grants issued under the 2011 Plan are recorded as compensation expense based on the grant date price.

2005 Employee and Director Equity Incentive Plan

At the Company’s annual shareholder meeting on May 12, 2005, the shareholders approved the 2005 Employee and Director Equity Incentive Plan (“2005 Plan”). There are no longer any Common Shares available for future issuance under the 2005 Plan, although outstanding grants under the 2005 Plan remain issued and outstanding. Restricted stock grants issued under the 2005 Plan, which vest over time, were recorded as deferred compensation in the equity section of the balance sheet on the grant

11

Note 5 Compensation Plans (Continued)

date and then recognized as compensation expense based on the grant date price over the vesting period of the respective grant. Stock grants issued under the 2005 Plan were recorded as compensation expense based on the grant date price.

Restricted Stock Transactions

The Company issues restricted stock units and restricted stock awards (collectively, "Restricted Stock"). Restricted stock units represent shares which may be issued in the future whereas restricted stock awards represent shares issued and outstanding upon grant with vesting restrictions. The following table represents a roll-forward of outstanding Restricted Stock pursuant to the 2011 and 2005 Plans and related activity during the three months ended March 31, 2014 and the year ended December 31, 2013:

	Shares		Weighted-Average Grant Date Price per Share
Outstanding Restricted Stock as of December 31, 2012	319,988		$	74.22
Grants issued	32,000		85.63
Grants vested	(39,749	)	80.77
Grants forfeited	(140	)	77.81
Outstanding Restricted Stock as of December 31, 2013	312,099		$	74.17
Grants issued	22,163		117.07
Grants vested	(7,500	)	56.79
Grants forfeited	(3,000	)	78.29
Total outstanding Restricted Stock as of March 31, 2014	323,762		$	77.84

Total deferred compensation related to unvested Restricted Stock grants was $12.4 million as of March 31, 2014. Compensation expense related to restricted stock units is calculated based upon the fair market value of the common stock on grant date reduced by the present value of expected dividends during the requisite service period discounted at the appropriate risk-free interest rate and is further adjusted for estimated forfeitures. Compensation expense related to the restricted stock grants is calculated based upon the fair market value of the common stock on grant date adjusted for estimated forfeitures. Compensation expense recognition of deferred equity compensation over the remaining service periods is as follows:

Nine Months   Remaining In
2014		2015		2016		2017		2018		2019		Total
$	4,221,498	$	4,548,634	$	1,859,491	$	1,243,071	$	479,470	$	36,146	$	12,388,310

Stock Grant Transactions

The following table represents stock grant transactions during the three months ended March 31, 2014 and 2013:

	Shares Issued	Grant Date Value
March 31, 2014	33,745	$	3,984,817
March 31, 2013	59,006	4,606,008

12

Note 5 Compensation Plans (Continued)

401(k) Plan

The Company sponsors a 401(k) plan under which all employees are eligible to participate. Employees may contribute a portion of their compensation, subject to certain limits based on federal tax laws. The Company makes matching contributions of common shares of the Company with a value equal to 200 percent of the first six percent of an employee’s compensation contributed to the plan. Employees become fully vested in the matching contributions after six plan years of employment. The following table summarizes the Company’s expenses attributable to the plan during the three months ended March 31, 2014 and 2013:

	March 31, 2014		March 31, 2013
Three Months Ended	$	323,744	$	280,213

Deferred Compensation Plans

On April 24, 2013, the Board of Directors approved the Diamond Hill Fixed Term Deferred Compensation Plan and the Diamond Hill Variable Term Deferred Compensation Plan (collectively the “Plans”). Under the Plans, participants may elect to voluntarily defer, for a minimum of five years, certain incentive compensation, which the Company then contributes into the Plans. Each participant is responsible for designating investment options for assets they contribute, and the distribution paid to each participant reflects any gains or losses on the assets realized while in the Plans. Assets held in the Plans will be included in the Company’s investment portfolio and the associated obligation to participants is included in deferred compensation liability. Assets held in the Plans consist of the Diamond Hill Funds and are recorded at fair value. The first deferrals into the Plans were made during the first quarter of 2014 and are valued at $3.9 million as of March 31, 2014. Amounts contributed to the Plans are expensed in the year in which the compensation was earned, however a tax deduction for federal and state income taxes is deferred until amounts are distributed from the Plans and reflected as a deferred tax asset.

Note 6 Operating Leases

The Company leases office space at three locations. The following table summarizes the total lease and operating expenses for the three months ended March 31, 2014 and 2013:

	March 31, 2014		March 31, 2013
Three Months Ended	$	226,089	$	175,888

The approximate future minimum lease payments under the operating leases are as follows:

		Future Minimum Lease Payments
		Nine Months   Remaining In
Total		2014		2015		2016		2017		2018		Thereafter
$	6,770,000	$	518,000	$	693,000	$	693,000	$	693,000	$	629,000	$	3,544,000

The total approximate future minimum lease payments of $6.8 million include $334 thousand of obligations resulting from a contractual expense reimbursement agreement ("Expense Agreement") with a third party. Under the Expense Agreement, these amounts are required to be reimbursed to the Company by the third party. The obligation of the third party to reimburse the Company for these expenses survives the termination of the Expense Agreement.

In addition to the above lease payments, the Company is also responsible for normal operating expenses of the properties. Such operating expenses were approximately $9.80 per square foot in 2013, on a combined basis, and are expected to be approximately $10.12 per square foot in 2014.

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Note 7 Income Taxes

The provision for income taxes for the three months ended March 31, 2014 and 2013 consists of federal, state and city income taxes. The effective tax rates for the three months ended March 31, 2014 and 2013 were 36.7% and 36.9%, respectively.

The net temporary differences incurred to date will reverse in future periods as the Company generates taxable earnings. The Company believes it is more likely than not that the results of future operations will generate sufficient taxable income to realize the net deferred tax assets recorded. The Company records a valuation allowance when it is more likely than not that some portion or all of the deferred tax assets will not be realized. As of March 31, 2014 and December 31, 2013, no valuation allowance was deemed necessary.

FASB ASC 740, Income Taxes, prescribes a recognition threshold and measurement attribute for the financial statement recognition and measurement of a tax position taken or expected to be taken in a tax return and also provides guidance on derecognition, classification, interest and penalties, accounting in interim periods, disclosure and transition. The Company did not record an accrual for tax related uncertainties or unrecognized tax positions as of March 31, 2014 and December 31, 2013. The Company does not expect a change to the reserve for uncertain tax positions within the next twelve months that would have a material impact on the consolidated financial statements. As of March 31, 2014, the Company has recorded no interest expense through the tax provision. As of December 31, 2013, the Company recorded through the tax provision net interest expense of $321 thousand as a result of an IRS examination.

The Company files income tax returns in the federal and all applicable state and local jurisdictions. The Company is subject to federal, state and local examinations by tax authorities for tax years ended December 31, 2010 through 2013.

Note 8 Earnings Per Share

The Company’s common shares outstanding consist of all shares issued and outstanding, including unvested restricted shares. Basic and diluted EPS are calculated under the two-class method. Pursuant to the two-class method, the Company’s unvested restricted stock grants with nonforfeitable rights to dividends are considered participating securities. Dividends are paid on all common shares outstanding at the same rate. Accordingly, the Company has evaluated the impact of earnings per share of all participating securities under the two-class method, noting no impact on earnings per share. Restricted stock grants with forfeitable rights to dividends and restricted stock units are considered dilutive. The following table sets forth the computation for basic and diluted EPS and reconciliation between basic and diluted shares outstanding:

	Three Months Ended   March 31,
	2014		2013
Net income	$	5,749,598	$	5,330,733
Weighted average number of outstanding shares - Basic	3,165,940		3,197,476
Dilutive impact of restricted stock grants with forfeitable rights to dividends	63,326		—
Dilutive impact of restricted stock units	1,634		—
Weighted average number of outstanding shares - Diluted	3,230,900		3,197,476
Earnings per share
Basic	$	1.82	$	1.67
Diluted	$	1.78	$	1.67

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Note 9 Regulatory Requirements

BHIL, a wholly owned subsidiary of the Company and principal underwriter for mutual funds, is subject to the U.S. Securities and Exchange Commission (“SEC”) uniform net capital rule, which requires the maintenance of minimum net capital. BHIL’s net capital exceeded its minimum net capital requirement at March 31, 2014 and December 31, 2013. The net capital balances, minimum net capital requirements, and ratios of aggregate indebtedness to net capital for BHIL are summarized below as of March 31, 2014 and December 31, 2013:

	March 31, 2014		December 31, 2013
Net Capital	$	336,012	$	338,568
Minimum Net Capital Requirement	74,683		90,931
Ratio of Aggregate Indebtedness to Net Capital	3.33 to 1		4.03 to 1

Note 10 Commitments and Contingencies

The Company indemnifies its directors and certain of its officers and employees for certain liabilities that might arise from their performance of their duties to the Company. Additionally, in the normal course of business, the Company enters into agreements that contain a variety of representations and warranties and which provide general indemnifications. Certain agreements do not contain any limits on the Company’s liability and would involve future claims that may be made against the Company that have not yet occurred. Therefore, it is not possible to estimate the Company’s potential liability under these indemnities. Further, the Company maintains insurance policies that may provide coverage against certain claims under these indemnities.

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ITEM 2: Management’s Discussion and Analysis of Financial Condition and Results of Operations

Forward-looking Statements

Throughout this Quarterly report on Form 10-Q, the Company may make forward-looking statements within the meaning of Section 27A of the Securities Act of 1933, as amended, and Section 21E of the Securities Exchange Act of 1934, as amended (the “Exchange Act”), relating to such matters as anticipated operating results, prospects and levels of AUM, technological developments, economic trends (including interest rates and market volatility), expected transactions and similar matters. The words “believe,” “expect,” “anticipate,” “estimate,” “should,” “hope,” “seek,” “plan,” “intend” and similar expressions identify forward-looking statements that speak only as of the date thereof. While the we believe that the assumptions underlying our forward-looking statements are reasonable, investors are cautioned that any of the assumptions could prove to be inaccurate and, accordingly, our actual results and experiences could differ materially from the anticipated results or other expectations expressed in our forward-looking statements. Factors that could cause such actual results or experiences to differ from results discussed in the forward-looking statements include, but are not limited to: the adverse effect from a decline in the securities markets; a decline in the performance of our products; changes in interest rates; changes in national and local economic and political conditions, including the effects of implementation of the Budget Control Act of 2011, the American Taxpayer Relief Act of 2012, the Jumpstart Our Business Startups Act of 2012 and the continuing economic uncertainty in various parts of the world; changes in government policy and regulation, including monetary policy; changes in our ability to attract or retain key employees; unforeseen costs and other effects related to legal proceedings or investigations of governmental and self-regulatory organizations; and other risks identified from time-to-time in other public documents on file with the U. S. Securities and Exchange Commission (“SEC”), including those in Item 1A on Form 10-K. The terms the “Company,” “management,” “we,” “us,” and “our,” mean Diamond Hill Investment Group, Inc. and its subsidiaries.

General

The Company, an Ohio corporation organized in 1990, derives its consolidated revenue and net income from investment advisory and fund administration services provided by its subsidiaries DHCM, BHFS, and BHIL. BHFS and BHIL collectively operate as "Beacon Hill". DHCM is a registered investment adviser under the Investment Advisers Act of 1940. DHCM sponsors, distributes, and provides investment advisory and related services to various U.S. and foreign clients through the Funds, institutional accounts, and Partnerships. Beacon Hill provides fund administration and statutory underwriting services to U.S. and foreign clients, including the Funds.

The Company’s primary objective is to fulfill our fiduciary duty to clients. Our secondary objective is to grow the intrinsic value of the Company in order to achieve an adequate long-term return for shareholders.

In this section, the Company discusses and analyzes the consolidated results of operations for the three month periods ended March 31, 2014 and 2013, material changes in financial condition and other factors that may affect future financial performance. The accompanying unaudited consolidated financial statements were prepared in accordance with the instructions for Form 10-Q and, therefore, do not include information or footnotes necessary for a complete presentation of financial position, results of operations and cash flows in conformity with United States generally accepted accounting principles. Accordingly, these financial statements should be read in conjunction with the Consolidated Financial Statements and Notes thereto of the Company included in the Company’s Annual Report on Form 10-K for the year ended December 31, 2013. However, in the opinion of management, all adjustments (consisting of only normal recurring accruals) which are necessary for a fair presentation of the financial statements have been included. The results of operations for the three month period ended March 31, 2014 are not necessarily indicative of the results which may be expected for the entire fiscal year.

Assets Under Management

Our revenue is derived primarily from investment advisory and administration fees. Investment advisory and administration fees paid to the Company are generally based on the value of the investment portfolios we manage and fluctuate with changes in the total value of the AUM. Substantially all of our AUM (98.2%) is valued based on readily available market quotations. AUM in the Strategic Income strategy (1.8%) is valued using evaluated prices from an independent third-party provider. Fees are recognized in the period that the Company manages these assets.

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Revenues are highly dependent on both the value and composition of AUM. The following is a summary of our AUM by product and investment objective, and a roll-forward of the change in AUM for the three months ended March 31, 2014 and 2013:

	Assets Under Management by Product
	As of March 31,
(in millions)	2014		2013		% Change
Proprietary funds	$	8,108	$	5,964	36	%
Sub-advised funds	490		1,030		-52	%
Institutional accounts	4,388		3,580		23	%
Total AUM	$	12,986	$	10,574	23	%

	Assets Under Management by Investment Objective
	As of March 31,
(in millions)	2014		2013		% Change
Small Cap	$	1,451	$	1,082	34	%
Small-Mid Cap	844		460		83	%
Large Cap	6,664		5,801		15	%
Select (All Cap)	382		285		34	%
Long-Short	3,407		2,747		24	%
Strategic Income	238		199		20	%
Total AUM	$	12,986	$	10,574	23	%

	Change in Assets Under Management
	For the Three Months Ended   March 31,
(in millions)	2014		2013
AUM at beginning of the period	$	12,186	$	9,429
Net cash inflows (outflows)
proprietary funds	367		142
sub-advised funds	33		(37		)
institutional accounts	160		(33		)
	560		72
Net market appreciation and income	240		1,073
Increase during the period	800		1,145
AUM at end of the period	$	12,986	$	10,574

17

Consolidated Results of Operations

The following is a discussion of our consolidated results of operations.

	Three Months Ended   March 31,
(in thousands, except per share amounts and percentages)	2014			2013			% Change
Net operating income	$	8,572		$	6,628		29	%
Net operating income after tax(a)	$	5,423		$	4,180		30	%
Net income	$	5,750		$	5,331		8	%
Net operating income after tax per diluted share(a)	$	1.68		$	1.31		28	%
Net income per diluted share	$	1.78		$	1.67		7	%
Operating profit margin	37		%	36		%	NM

(a) Net operating income after tax is a non-GAAP performance measure. See Use of Supplemental Data as Non-GAAP Performance Measure on page 20 of this report.

Three Months Ended March 31, 2014 compared with Three Months Ended March 31, 2013

The Company generated net income of $5.7 million ($1.78 per diluted share) for the three months ended March 31, 2014, compared with net income of $5.3 million ($1.67 per diluted share) for the three months ended March 31, 2013. Operating income increased by $1.9 million period over period due to an increase in AUM, resulting in a $4.8 millionincrease in revenue. The revenue increase was offset by an increase in operating expenses of $2.9 million, related to higher compensation due to staffing and merit increases, an increase in incentive compensation, and an increase in restricted stock expenses. A positive investment return of $517 thousand due to market appreciation further contributed to the overall increase in net income for the three months ended March 31, 2014. Income tax provision increased $217 thousand from the three months ended March 31, 2013 to the three months ended March 31, 2014 primarily due to an overall increase in book income. Operating profit margin increased to 37% for the first quarter 2014 from 36% for the first quarter 2013. We expect that our operating margin will fluctuate from period to period based on various factors including revenues; investment results; employee performance; staffing levels; development of investment strategies, products, or channels; and industry comparisons.

Revenue

	Three Months Ended   March 31,
(in thousands)	2014		2013		% Change
Investment advisory	$	19,911	$	15,854	26	%
Mutual fund administration, net	3,278		2,521		30	%
Total	$	23,189	$	18,375	26	%

As a percent of total first quarter 2014 revenues, investment advisory fees accounted for 86% and mutual fund administration fees made up the remaining 14%. This compared to 86% and 14%, respectively, for first quarter 2013.

Investment Advisory Fees. Investment advisory fees increased by $4.1 million, or 26%, from the quarter ended March 31, 2013 to the quarter ended March 31, 2014. Investment advisory fees are calculated as a percentage of average net AUM at various rates depending on the investment product. The increase in investment advisory fees was driven by an increase of 23% in average AUM quarter over quarter and an increase of one basis point in the average advisory fee rate from 0.63% for the quarter ended March 31, 2013 to 0.64% for the quarter ended March 31, 2014. The increase in the average advisory fee rate is primarily due to a shift in the overall composition of AUM to higher fee rate strategies.

Mutual Fund Administration Fees. Mutual fund administration fees increased$757 thousand, or 30%, from the quarter ended March 31, 2013 to the quarter ended March 31, 2014. Mutual fund administration fees include administration fees received from the Funds, which are calculated as a percentage of average Funds AUM, and all Beacon Hill fee revenue. The increase in mutual fund administration fees is due to a 38%increase in average Funds AUM from $5.6 billion for the quarter ended

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March 31, 2013 to $7.7 billion for the quarter ended March 31, 2014 offset by a decrease of two basis points in the net administration fee rate from 0.16% for the quarter ended March 31, 2013 to 0.14% for the quarter ended March 31, 2014 due to an increase in mutual fund agent expenses, which are netted against mutual fund administration fees, during the quarter ended March 31, 2014 compared to the quarter ended March 31, 2013.

Expenses

	Three Months Ended   March 31,
(in thousands)	2014		2013		% Change
Compensation and related costs	$	11,872	$	9,513	25	%
General and administrative	1,581		1,392		14	%
Sales and marketing	492		434		13	%
Mutual fund administration	672		408		65	%
Total	$	14,617	$	11,747	24	%

Compensation and Related Costs. Employee compensation and benefits increased by $2.4 million, or 25%, from the quarter ended March 31, 2013 compared to the quarter ended March 31, 2014, due to an increase of $449 thousand in salaries and related benefits due to an increase in staffing and merit levels, an increase of $552 thousand in restricted stock expense due to additional restricted stock transactions after the first quarter of 2013, and an increase of $1.4 million in incentive compensation during first quarter of 2014 due to growth in the business.

General and Administrative. General and administrative expenses increased by $189 thousand, or 14%, from the quarter ended March 31, 2013 to the quarter ended March 31, 2014. This increase is primarily due to additional research expenses to support our investment team, an increase in system infrastructure and information technology expenses, additional rent related to the expansion of our office space, and an increase in corporate audit and legal expenses.

Sales and Marketing. Sales and marketing expenses increased by $58 thousand, or 13%, from the quarter ended March 31, 2013 to the quarter ended March 31, 2014. The increase was due to an overall increase in travel and consulting related to business development and retention efforts and payments made to third party intermediaries related to sales of our proprietary funds, offset by a reduction in costs related to the production of marketing materials.

Mutual Fund Administration. Mutual fund administration expenses increased by $265 thousand, or 65%, from the quarter ended March 31, 2013 to the quarter ended March 31, 2014. Mutual fund administration expenses consist of both variable and fixed expenses. The variable expenses are based on the amount of Fund AUM and the number of shareholder accounts. The increase is primarily due to a restructuring of certain servicing contracts for Diamond Hill Funds to shift the expense obligation from the Funds to the Company. This effectively lowered the expense ratio of the Funds by approximately one basis point and increased the mutual fund administration expense of the Company by the same amount. An increase in the number of shareholder accounts as well as an increase in the average Funds AUM of 38% from the quarter ended March 31, 2013 to the quarter ended March 31, 2014 also contributed to the increase.

Liquidity and Capital Resources

Sources of Liquidity

The Company’s main source of liquidity is cash flow from operating activities, which is generated from investment advisory and fund administration fees. Our entire investment portfolio is in readily marketable securities, which provide for cash liquidity, if needed. Investments in mutual funds are valued at their quoted current net asset value. Investments in private investment funds are valued independently based on readily available market quotations. Inflation is expected to have no material impact on our performance. Cash and cash equivalents, accounts receivable, and investments represent approximately 84% and 86% of total assets as of March 31, 2014 and December 31, 2013, respectively. We believe these sources of liquidity, as well as our continuing cash flows from operating activities, will be sufficient to meet our current and future operating needs for at least the next 12 months.

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Uses of Liquidity

In line with the Company’s primary objective to fulfill our fiduciary duty to clients and secondary objective to achieve an adequate long-term return for shareholders, we anticipate our main uses of cash will be operating expenses.

The Board of Directors and management regularly review various factors to determine whether we have capital in excess of that required for the business and the appropriate use of any excess capital. The factors considered include our investment opportunities, risks, and future dividend and capital gain tax rates. Evaluating management’s stewardship of capital for shareholders is a central part of our investment discipline that we practice for our clients. We hold ourselves to the same standard that we look for when evaluating investments for our clients.

Working Capital

As of March 31, 2014, the Company had working capital of approximately $48.2 million, compared to $34.4 million at December 31, 2013. Working capital includes cash, securities owned and current receivables, net of all liabilities. The Company has no debt, and we believe our available working capital is sufficient to cover current expenses. We expect to have sufficient working capital to cover anticipated capital expenditures that could range from $500 thousand to $1 million during 2014 related to office expansion to support our growth.

Cash Flow Analysis

Cash Flows from Operating Activities

The Company’s cash flows from operating activities are calculated by adjusting net income to reflect other significant operating sources and uses of cash, certain significant non-cash items such as share-based compensation, and timing differences in the cash settlement of operating assets and liabilities.

For the three months ended March 31, 2014, net cash used in operating activities totaled $6.3 million. For the three months ended March 31, 2013, net cash used by operating activities totaled $2.2 million, respectively.

Cash Flows from Investing Activities

The Company’s cash flows from investing activities consist primarily of capital expenditures and the purchase and redemption of our investment portfolio.

Cash flows used in investing activities totaled $15.4 million for the three months ended March 31, 2014 primarily related to purchases into the Company’s corporate investments. Cash flows used in investing activities totaled $305 thousand for the three months ended March 31, 2013 related to purchases of furniture and equipment.

Cash Flows from Financing Activities

The Company’s cash flows from financing activities may consist of the payment of special dividends, the repurchase of common shares, and shares withheld related to employee tax withholding.

For the three months ended March 31, 2014, net cash used by financing activities totaled $148 thousand related to shares withheld related to employee tax withholding, offset by excess income tax benefit from stock-based compensation. For the three months ended March 31, 2013, there were no cash flows in financing activities.

Use of Supplemental Data as Non-GAAP Performance Measure

Net Operating Income After Tax

As supplemental information, we are providing performance measures that are based on methodologies other than generally accepted accounting principles (“non-GAAP”) for “Net Operating Income After Tax” that management uses as benchmarks in evaluating and comparing the period-to-period operating performance of the Company and its subsidiaries.

The Company defines “net operating income after tax” as the Company’s net operating income less its income tax provision, excluding investment income and the tax impact related to the investment income. The Company believes that “net operating income after tax” provides a good representation of the Company’s operating performance, as it excludes the impact of investment income on financial results. The amount of the investment portfolio and market fluctuations on the investments can

20

change significantly from one period to another, which can distort the underlying earnings potential of a company. We also believe “net operating income after tax” is an important metric in estimating the value of an asset management business. This non-GAAP measure is provided in addition to net income and net operating income and is not a substitute for net income or net operating income and may not be comparable to non-GAAP performance measures of other companies.

	Three Months Ended   March 31,
(in thousands, except per share data)	2014		2013
Net operating income, GAAP basis	$	8,572	$	6,628
Non-GAAP adjustments:
Tax provision excluding impact of investment income	3,149		2,448
Net operating income after tax, non-GAAP basis	$	5,423	$	4,180
Net operating income after tax per diluted share, non-GAAP basis	$	1.68	$	1.31
Diluted weighted average shares outstanding, GAAP basis	3,231		3,197

The tax provision excluding impact of investment income is calculated by applying the tax rate from the actual tax provision to net operating income.

Off-Balance Sheet Arrangements

The Company has no off-balance sheet arrangements. We do not have any obligation under a guarantee contract, or a retained or contingent interest in assets or similar arrangement that serves as credit, liquidity or market risk support for such assets, or any other obligation, including a contingent obligation, under a contract that would be accounted for as a derivative instrument or arising out of a variable interest.

Critical Accounting Policies and Estimates

There have been no material changes to the Critical Accounting Policies and Estimates provided in Item 7 of the Company’s Annual Report on Form 10-K for the year ended December 31, 2013.

21

ITEM 3: Quantitative and Qualitative Disclosures About Market Risk

There has been no material change in the information provided in Item 7A of the Company’s Annual Report on Form 10-K for the year ended December 31, 2013.

ITEM 4: Controls and Procedures

Management, including the Chief Executive Officer and the Chief Financial Officer, has conducted an evaluation of the effectiveness of the Company’s disclosure controls and procedures (as defined in Rules 13a-15(e) or 15d-15(e) of the Securities Exchange Act) as of the end of the period covered by this quarterly report (the “Evaluation Date”). Based on such evaluation, the Chief Executive Officer and the Chief Financial Officer have concluded that, as of the Evaluation Date, the Company’s disclosure controls and procedures are effective to ensure that the information required to be disclosed by the Company in the reports that it files or submits under the Exchange Act, is recorded, processed, summarized and reported within the time periods specified in the Securities and Exchange Commission’s rules and forms, and to ensure that the information required to be disclosed by the Company in the reports it files or submits under the Exchange Act is accumulated and communicated to the Company’s management, including the Chief Executive Officer and Chief Financial Officer, or persons performing similar functions, as appropriate, to allow timely decisions regarding required disclosure.

There have been no changes in the Company’s internal control over financial reporting during the quarter ended March 31, 2014 that have materially affected, or are reasonably likely to materially affect, the Company’s internal control over financial reporting.

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PART II: OTHER INFORMATION

ITEM 1: Legal Proceedings

From time to time, the Company is party to ordinary routine litigation that is incidental to its business. There are currently no material legal proceedings pending to which the Company or any subsidiary is a party.

ITEM 1A: Risk Factors

There has been no material change to the information provided in Item 1A of the Company’s Annual Report on Form 10-K for the year ended December 31, 2013.

ITEM 2: Unregistered Sales of Equity Securities and Use of Proceeds

During the quarter ended March 31, 2014, the Company did not purchase any of its Common Shares and did not sell any Common Shares that were not registered under the Securities Act of 1933. The following table sets forth information regarding the Company’s repurchase program of its Common Shares during the first quarter of fiscal year 2014:

Period	Total Number of Shares Purchased	Average Price Paid Per Share	Total Number of Shares Purchased as part of Publicly Announced Plans or Programs	Maximum Number of Shares That May Yet Be Purchased Under the Plans or Programs(1)
January 1, 2014 through January 31, 2014	—	—	—	318,433
February 1, 2014 through February 28, 2014	—	—	—	318,433
March 1, 2014 through March 31, 2014	—	—	—	318,433

(1) The Company’s current share repurchase program was announced on August 9, 2007. The Board of Directors authorized management to repurchase up to 350,000 shares of the Company’s Common Shares in the open market and in private transactions in accordance with applicable securities laws. The Company’s stock repurchase program is not subject to an expiration date.

ITEM 3: Defaults Upon Senior Securities

None

ITEM 4: Mine Safety Disclosures

None

ITEM 5: Other Information

None

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ITEM 6: Exhibits

3.1	Amended and Restated Articles of Incorporation of the Company. (Incorporated by reference from Form 8-K Current Report for the event on May 2, 2002 filed with the SEC on May 7, 2002; File No. 000-24498.)
3.2	Code of Regulations of the Company. (Incorporated by reference from Form 8-K Current Report for the event on May 2, 2002 filed with the SEC on May 7, 2002; File No. 000-24498.)
31.1	Certification of Chief Executive Officer required by Rule 13a-14(a) or Rule 15d-14(a).
31.2	Certification of Chief Financial Officer required by Rule 13a-14(a) or Rule 15d-14(a).
32.1	Section 1350 Certifications.
101.INS	XBRL Instance Document.
101.SCH	XBRL Taxonomy Extension Schema Document.
101.CAL	XBRL Taxonomy Extension Calculation Linkbase Document.
101.DEF	XBRL Taxonomy Definition Linkbase Document.
101.LAB	XBRL Taxonomy Extension Label Linkbase Document.
101.PRE	XBRL Taxonomy Extension Presentation Linkbase Document.

24

DIAMOND HILL INVESTMENT GROUP, INC.

SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned thereunto duly authorized.

DIAMOND HILL INVESTMENT GROUP, INC.

Date	Title	Signature
April 30, 2014	President, Chief Executive Officer, and a Director	/s/ R. H. Dillon
		R. H. Dillon
April 30, 2014	Chief Financial Officer, Treasurer, Secretary, and a Director	/s/ James F. Laird
		James F. Laird

25

EX-31.1

CERTIFICATION FOR QUARTERLY REPORT ON FORM 10-Q

I, R.H. Dillon, certify that:

1. I have reviewed this Quarterly Report on Form 10-Q of Diamond Hill Investment Group, Inc.;

2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report;

3. Based on my knowledge, the financial statements, and other financial information included in this report, fairly present in all material respects the financial condition, results of operations and cash flows of the registrant as of, and for, the periods presented in this report;

4. The registrant’s other certifying officer(s) and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) and internal control over financial reporting (as defined in Exchange Act Rules 13a-15(f) and 15d-15(f)) for the registrant and have:

a) Designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information relating to the registrant, including its consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in which this report is being prepared;

b) Designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed under our supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles;

c) Evaluated the effectiveness of the registrant’s disclosure controls and procedures and presented in this report our conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by this report based on such evaluation; and

d) Disclosed in this report any change in the registrant’s internal control over financial reporting that occurred during the registrant’s most recent fiscal quarter (the registrant’s fourth fiscal quarter in the case of an annual report) that has materially affected, or is reasonably likely to materially affect, the registrant’s internal control over financial reporting; and

5. The registrant’s other certifying officer(s) and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the registrant’s auditors and the audit committee of the registrant’s board of directors (or persons performing the equivalent functions):

a) All significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably likely to adversely affect the registrant’s ability to record, process, summarize and report financial information; and

b) Any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant’s internal control over financial reporting.

Date: April 30, 2014	/s/ R. H. Dillon
	R.H. Dillon
	Chief Executive Officer

EX-31.2

CERTIFICATION FOR QUARTERLY REPORT ON FORM 10-Q

I, James F. Laird, certify that:

1. I have reviewed this Quarterly Report on Form 10-Q of Diamond Hill Investment Group, Inc.;

2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report;

3. Based on my knowledge, the financial statements, and other financial information included in this report, fairly present in all material respects the financial condition, results of operations and cash flows of the registrant as of, and for, the periods presented in this report;

4. The registrant’s other certifying officer(s) and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) and internal control over financial reporting (as defined in Exchange Act Rules 13a-15(f) and 15d-15(f)) for the registrant and have:

a) Designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information relating to the registrant, including its consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in which this report is being prepared;

b) Designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed under our supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles;

c) Evaluated the effectiveness of the registrant’s disclosure controls and procedures and presented in this report our conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by this report based on such evaluation; and

d) Disclosed in this report any change in the registrant’s internal control over financial reporting that occurred during the registrant’s most recent fiscal quarter (the registrant’s fourth fiscal quarter in the case of an annual report) that has materially affected, or is reasonably likely to materially affect, the registrant’s internal control over financial reporting; and

5. The registrant’s other certifying officer(s) and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the registrant’s auditors and the audit committee of the registrant’s board of directors (or persons performing the equivalent functions):

a) All significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably likely to adversely affect the registrant’s ability to record, process, summarize and report financial information; and

b) Any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant’s internal control over financial reporting.

Date: April 30, 2014	/s/ James F. Laird
	James F. Laird
	Chief Financial Officer

EX-32.1

CERTIFICATION PURSUANT TO

TITLE 18, UNITED STATES CODE, SECTION 1350,

AS ADOPTED PURSUANT TO

SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002

In connection with the Quarterly Report of Diamond Hill Investment Group, Inc. (the “Company”) on Form 10-Q for the quarterly period ended March 31, 2014 as filed with the Securities and Exchange Commission on the date hereof (the “Report”), R.H. Dillon, Chief Executive Officer of the Company, and James F. Laird, Chief Financial Officer of the Company, certify, pursuant to Title 18, United States Code, Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, that:

(1) The Report fully complies with the requirements of Section 13(a) or 15(d) of the Securities Exchange Act of 1934; and

(2) The information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of the Company.

/S/ R.H. Dillon

Print Name: R.H. Dillon

Title: Chief Executive Officer

Date: April 30, 2014

/S/ James F. Laird

Print Name: James F. Laird

Title: Chief Financial Officer

Date: April 30, 2014

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Operating Leases - Future Minimum Lease Payments under Operating Leases (Detail) (USD $)	Mar. 31, 2014
Leases [Abstract]
Operating Leases, Future Minimum Payments Due	$ 6,770,000
Remainder of 2014 (9 Months Remaining)	518,000
2015	693,000
2016	693,000
2017	693,000
2018	629,000
Thereafter	$ 3,544,000

XML

Compensation Plans - Roll-Forward of Outstanding Restricted Stock Grants Issued (Detail) (USD $)	3 Months Ended			12 Months Ended
	Mar. 31, 2014	Mar. 31, 2013	Mar. 31, 2014 Restricted Stock Units (RSUs)	Dec. 31, 2013 Restricted Stock Units (RSUs)
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Outstanding shares, Beginning Balance	312,099		312,099	319,988
Grants issued	33,745	59,006	22,163	32,000
Grants vested			(7,500)	(39,749)
Grants forfeited			(3,000)	(140)
Outstanding shares, Ending Balance	309,762		323,762	312,099
Weighted-Average Grant Date Price per Share, Beginning of Period			$ 74.17	$ 74.22
Weighted-Average Grant Date Price per Share, Grants issued			$ 117.07	$ 85.63
Weighted-Average Grant Date Price per Share, Grants vested			$ 56.79	$ 80.77
Weighted-Average Grant Date Price per Share, Grants forfeited			$ 78.29	$ 77.81
Weighted-Average Grant Date Price per Share, End of Period			$ 77.84	$ 74.17

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Significant Accounting Policies - Assets under Management (AUM) Subject to Incentive Fees and Incentive Fees (Detail) (USD $)	3 Months Ended
	Mar. 31, 2014	Mar. 31, 2013
Principal Transaction Revenue [Line Items]
AUM Subject to Incentive Fees	$ 482,095,096	$ 306,975,487
Quarter Ended June 30, 2017
Principal Transaction Revenue [Line Items]
AUM Subject to Incentive Fees	389,747,078	306,975,487
Quarter Ended December 31, 2018
Principal Transaction Revenue [Line Items]
AUM Subject to Incentive Fees	92,348,018	0
Incentive Fees Under Method 1
Principal Transaction Revenue [Line Items]
Performance Incentive Fees	0	0
Incentive Fees Under Method 1 | Quarter Ended June 30, 2017
Principal Transaction Revenue [Line Items]
Performance Incentive Fees	0	0
Incentive Fees Under Method 1 | Quarter Ended December 31, 2018
Principal Transaction Revenue [Line Items]
Performance Incentive Fees	0	0
Incentive Fees Under Method 2
Principal Transaction Revenue [Line Items]
Performance Incentive Fees	4,647,204	1,146,468
Incentive Fees Under Method 2 | Quarter Ended June 30, 2017
Principal Transaction Revenue [Line Items]
Performance Incentive Fees	4,647,204	1,146,468
Incentive Fees Under Method 2 | Quarter Ended December 31, 2018
Principal Transaction Revenue [Line Items]
Performance Incentive Fees	$ 0	$ 0

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Earnings Per Share - Computation for Earnings Per Share (Detail) (USD $)	3 Months Ended
	Mar. 31, 2014	Mar. 31, 2013
Earnings Per Share [Abstract]
Net Income	$ 5,749,598	$ 5,330,733
Weighted average shares outstanding
Basic (in shares)	3,165,940	3,197,476
Dilutive impact of restricted stock grants with forfeitable rights to dividends	63,326	0
Dilutive impact of restricted stock units	1,634	0
Diluted (in shares)	3,230,900	3,197,476
Earnings per share
Basic (USD per share)	$ 1.82	$ 1.67
Diluted (USD per share)	$ 1.78	$ 1.67

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Compensation Plans - Narrative (Detail) (USD $)					3 Months Ended
	Mar. 31, 2014	Dec. 31, 2013	Mar. 31, 2014 2011 Equity and Cash Incentive Plan	Mar. 31, 2014 Restricted Stock Units (RSUs)	Mar. 31, 2014 401(K) Plan	Mar. 31, 2014 Minimum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Deferred Compensation Equity	$ 12,388,310	$ 11,397,560
Authorizes the issuance of Common Shares in various forms of equity awards			600,000
Common shares available for issuance			193,392
Deferred compensation related to unvested restricted stock grants				12,388,310
Employee's compensation contributed to the plan					6.00%
Employer's compensation contributed to the plan					200.00%
Number of years of employment required to vest in contribution					6 years
Deferred Compensation Arrangement, Fully Vested Employee Elected Deferral Period						5 years
Deferred Compensation Plan Assets	$ 3,900,000

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Capital Stock

3 Months Ended

Mar. 31, 2014

Equity [Abstract]

Capital Stock

Capital Stock

Common Shares

The Company has only one class of securities outstanding, Common Shares, no par value per share.

Authorization of Preferred Shares

The Company’s Amended and Restated Articles of Incorporation authorize the issuance of 1,000,000 shares of “blank check” preferred shares with such designations, rights and preferences, as may be determined from time to time by the Company’s Board of Directors. The Board of Directors is authorized, without shareholder approval, to issue preferred stock with dividend, liquidation, conversion, voting, or other rights, which could adversely affect the voting or other rights of the holders of the Common Shares. There were no shares of preferred stock issued or outstanding at either March 31, 2014 or December 31, 2013.

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Regulatory Requirements - Regulatory Requirements Uniform Net Capital Rule (Detail) (USD $)	Mar. 31, 2014	Dec. 31, 2013
Regulatory Capital Requirements [Abstract]
Net Capital	$ 336,012	$ 338,568
Minimum Net Capital Requirement	$ 74,683	$ 90,931
Ratio of Aggregate Indebtedness to Net Capital	3.33	4.03

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Investment Portfolio - Schedule of Deferred Compensation Liability (Details) (USD $)	Mar. 31, 2014	Dec. 31, 2013
Investments, Debt and Equity Securities [Abstract]
Deferred compensation	$ 5,206,252	$ 1,287,745

XML

Investment Portfolio - Summary of Market Value of Investments (Detail) (USD $)	Mar. 31, 2014	Dec. 31, 2013
Investment Holdings [Line Items]
Total Investment Portfolio	$ 34,583,720	$ 18,726,070
Investments, Fair Value Disclosure	34,583,720
Diamond Hill Small Cap Fund
Investment Holdings [Line Items]
Total Investment Portfolio	90,981	0
Diamond Hill Small-Mid Cap Fund
Investment Holdings [Line Items]
Total Investment Portfolio	91,490	0
Diamond Hill Mid Cap Fund
Investment Holdings [Line Items]
Total Investment Portfolio	10,216,718	0
Diamond Hill Large Cap Fund
Investment Holdings [Line Items]
Total Investment Portfolio	1,252,670	0
Diamond Hill Select Fund
Investment Holdings [Line Items]
Total Investment Portfolio	672,607	0
Diamond Hill Long-Short Fund
Investment Holdings [Line Items]
Total Investment Portfolio	1,429,487	1,287,745
Diamond Hill Financial Long-Short Fund
Investment Holdings [Line Items]
Total Investment Portfolio	1,168,846	1,131,034
Diamond Hill Research Opportunities Fund
Investment Holdings [Line Items]
Total Investment Portfolio	14,334,100	13,305,830
Diamond Hill Strategic Income Fund
Investment Holdings [Line Items]
Total Investment Portfolio	806,780	0
Diamond Hill Investment Partners, L.P.
Investment Holdings [Line Items]
Total Investment Portfolio	1,155	1,133
Diamond Hill Global Fund, L.P.
Investment Holdings [Line Items]
Total Investment Portfolio	1,467,879	0
Diamond Hill Valuation-Weighted 500, L.P.
Investment Holdings [Line Items]
Total Investment Portfolio	$ 3,051,007	$ 3,000,328

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Investment Portfolio - Carrying Value and Income from Partnerships (Detail) (USD $)	3 Months Ended	12 Months Ended
	Mar. 31, 2014	Dec. 31, 2013
Investments, Debt and Equity Securities [Abstract]
Total partnership assets	$ 122,544,481	$ 122,106,403
Total partnership liabilities	22,455,061	25,217,600
Net partnership assets	100,089,420	96,888,803
DHCM’s portion of net assets	4,520,041	3,001,461
Net partnership income	1,700,616	24,294,495
DHCM’s portion of net income	$ 93,580	$ 899,958

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Investment Portfolio - Narrative (Detail) (USD $)	Mar. 31, 2014
Investments, Debt and Equity Securities [Abstract]
Investments, Fair Value Disclosure	$ 34,583,720
Cost basis of portfolio investments	$ 26,900,000

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Investment Portfolio

3 Months Ended

Mar. 31, 2014

Investments, Debt and Equity Securities [Abstract]

Investment Portfolio

Investment Portfolio

As of March 31, 2014, the Company held investments (excluding money market funds, included with cash and cash equivalents) worth $34.6 million with an estimated cost basis of $26.9 million. The following table summarizes the fair value of these investments as of March 31, 2014 and December 31, 2013:

	As of
	March 31, 2014		December 31, 2013
Diamond Hill Small Cap Fund	$	90,981	$	—
Diamond Hill Small-Mid Cap Fund	91,490		—
Diamond Hill Mid Cap Fund	10,216,718		—
Diamond Hill Large Cap Fund	1,252,670		—
Diamond Hill Select Fund	672,607		—
Diamond Hill Long-Short Fund	1,429,487		1,287,745
Diamond Hill Financial Long-Short Fund	1,168,846		1,131,034
Diamond Hill Research Opportunities Fund	14,334,100		13,305,830
Diamond Hill Strategic Income Fund	806,780		—
Diamond Hill Investment Partners, L.P.	1,155		1,133
Diamond Hill Global Fund, L.P.	1,467,879		—
Diamond Hill Valuation-Weighted 500, L.P.	3,051,007		3,000,328
Total Investment Portfolio	$	34,583,720	$	18,726,070

The above investment portfolio includes the following amounts related to deferred compensation liabilities:

As of
March 31, 2014	December 31, 2013
5,206,252	1,287,745

DHCM is the managing member of the General Partner, which is the general partner of the Partnerships. The underlying assets of the Partnerships are cash and marketable equity securities. Summary financial information, including the Company’s carrying value and income from the Partnerships, is as follows:

	As of
	March 31, 2014		December 31, 2013
Total partnership assets	$	122,544,481	$	122,106,403
Total partnership liabilities	22,455,061		25,217,600
Net partnership assets	$	100,089,420	$	96,888,803
DHCM’s portion of net assets	$	4,520,041	$	3,001,461

	For the   Three Months Ended		For the Year Ended
	March 31, 2014		December 31, 2013
Net partnership income	$	1,700,616	$	24,294,495
DHCM’s portion of net income	$	93,580	$	899,958

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Capital Stock - Narrative (Detail) (USD $)	Mar. 31, 2014	Dec. 31, 2013
Equity [Abstract]
No par value per share
Preferred stock, shares authorized	1,000,000	1,000,000
Preferred stock, shares issued
Preferred Stock, shares Outstanding

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Operating Leases - Narrative (Detail) (USD $)	3 Months Ended		0 Months Ended
	Mar. 31, 2014 Location	Mar. 31, 2013	Apr. 15, 2014 Full Year 2014
Operating Leased Assets [Line Items]
Operating expenses		9.80	10.12
Operating Leases, Future Minimum Payments Due	$ 6,770,000
Contractual Reimbursement of Future Minimum Lease Payments Expected Over Life of Operating Lease Agreement	$ 334,000
Number of office space locations	3

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Consolidated Balance Sheets (USD $)	Mar. 31, 2014	Dec. 31, 2013
ASSETS
Cash and cash equivalents	$ 11,264,827	$ 33,106,972
Investment portfolio	34,583,720	18,726,070
Accounts receivable	13,396,598	13,002,295
Prepaid expenses	1,472,954	1,489,713
Furniture and equipment, net of depreciation	945,394	964,943
Income tax receivable	3,425,688	0
Deferred taxes	5,626,716	8,063,425
Total assets	70,715,897	75,353,418
Liabilities
Accounts payable and accrued expenses	3,187,625	4,049,240
Accrued incentive compensation	6,100,000	19,606,881
Deferred compensation	5,206,252	1,287,745
Income taxes payable	0	5,466,562
Total liabilities	14,493,877	30,410,428
Commitments and contingencies	0	0
Shareholders’ Equity
Common stock, no par value 7,000,000 shares authorized; 3,296,297 issued and outstanding at March 31, 2014 (inclusive of 309,762 unvested shares); 3,257,247 issued and outstanding at December 31, 2013 (inclusive of 312,099 unvested shares);	79,163,115	72,642,933
Preferred stock, undesignated, 1,000,000 shares authorized and unissued	0	0
Deferred equity compensation	(12,388,310)	(11,397,560)
Accumulated deficit	(10,552,785)	(16,302,383)
Total shareholders’ equity	56,222,020	44,942,990
Total liabilities and shareholders’ equity	$ 70,715,897	$ 75,353,418
Book value per share	$ 17.06	$ 13.80

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Business and Organization

3 Months Ended

Mar. 31, 2014

Organization, Consolidation and Presentation of Financial Statements [Abstract]

Business and Organization

Business and Organization

Diamond Hill Investment Group, Inc. (the “Company”), an Ohio Corporation, derives its consolidated revenues and net income from investment advisory and fund administration services. The Company has three operating subsidiaries.

Diamond Hill Capital Management, Inc. (“DHCM”), an Ohio corporation, is a wholly owned subsidiary of the Company and a registered investment adviser. DHCM is the investment adviser to the Diamond Hill Funds (the “Funds”), a series of open-end mutual funds, private investment funds (“Private Funds”), and other institutional accounts. In addition, DHCM is administrator for the Funds.

Beacon Hill Fund Services, Inc. (“BHFS”), an Ohio corporation, is a wholly owned subsidiary of the Company. BHFS provides certain compliance, treasury, and other fund administration services to mutual fund companies. BHIL Distributors, Inc. (“BHIL”), an Ohio corporation, is a wholly owned subsidiary of BHFS. BHIL provides underwriting to mutual funds. BHFS and BHIL collectively operate as Beacon Hill.

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Compensation Plans - Schedule of Grants Issued and Grant Date Fair Value (Details) (USD $)	3 Months Ended
	Mar. 31, 2014	Mar. 31, 2013
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]
Grants issued	33,745	59,006
Stock Granted, Value	$ 3,984,817	$ 4,606,008

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Regulatory Requirements (Tables)

3 Months Ended

Mar. 31, 2014

Brokers and Dealers [Abstract]

Regulatory Requirements Uniform Net Capital Rule

The net capital balances, minimum net capital requirements, and ratios of aggregate indebtedness to net capital for BHIL are summarized below as of March 31, 2014 and December 31, 2013:

	March 31, 2014		December 31, 2013
Net Capital	$	336,012	$	338,568
Minimum Net Capital Requirement	74,683		90,931
Ratio of Aggregate Indebtedness to Net Capital	3.33 to 1		4.03 to 1

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Compensation Plans - Summary of Company's Expenses Attributable to 401(k) Plan (Detail) (401(K) Plan, USD $)	3 Months Ended
	Mar. 31, 2014	Mar. 31, 2013
401(K) Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Expenses attributable to the 401(k) Plan	$ 323,744	$ 280,213

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Significant Accounting Policies - Summary of Investments Values Based Upon Level 1and Level 2 (Detail) (USD $)	Mar. 31, 2014	Dec. 31, 2013
Level 1 Inputs
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Value of Investment	$ 36,869,820	$ 32,528,367
Level 2 Inputs
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Value of Investment	$ 4,520,041	$ 3,001,461

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Significant Accounting Policies

3 Months Ended

Mar. 31, 2014

Accounting Policies [Abstract]

Significant Accounting Policies

Significant Accounting Policies

The preparation of financial statements in conformity with accounting principles generally accepted in the United States of America requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities, disclosure of contingent assets and liabilities, and the reported amounts of revenues and expenses for the periods. Actual results could differ from those estimates. Certain prior period amounts and disclosures have been reclassified to conform to the current period financial presentation. Book value per share is computed by dividing total shareholders’ equity by the number of shares issued and outstanding at the end of the measurement period. The following is a summary of the Company’s significant accounting policies:

Principles of Consolidation

The accompanying consolidated financial statements include the operations of the Company and its subsidiaries. All material inter-company transactions and balances have been eliminated in consolidation.

Segment Information

Management has determined that the Company operates in one business segment, namely providing investment management and administration services to mutual funds, institutional accounts, and private investment funds. Therefore, no disclosures relating to operating segments are required in annual or interim financial statements.

Cash and Cash Equivalents

Cash and cash equivalents include demand deposits and money market mutual funds.

Accounts Receivable

Accounts receivable are recorded when they are due and are presented on the balance sheet net of any allowance for doubtful accounts. Accounts receivable are written off when they are determined to be uncollectible. Any allowance for doubtful accounts is estimated based on the Company’s historical losses, existing conditions in the industry, and the financial stability of those individuals or entities that owe the receivable. No allowance for doubtful accounts was deemed necessary at March 31, 2014 or December 31, 2013.

Valuation of Investment Portfolio

Investments held by the Company are valued based upon the definition of Level 1 inputs and Level 2 inputs. Level 1 inputs are defined as fair values which use quoted prices in active markets for identical assets or liabilities. Level 2 inputs are defined as quoted prices in markets that are not considered to be active for identical assets or liabilities, quoted prices in active markets for similar assets or liabilities, and inputs other than quoted prices that are directly observable or that may be corroborated indirectly with observable market data. The following table summarizes the values of the Company’s investments based upon Level 1 and Level 2 inputs as of March 31, 2014 and December 31, 2013:

	March 31, 2014		December 31, 2013
Level 1 Inputs	$	36,869,820	$	32,528,367
Level 2 Inputs	4,520,041		3,001,461

Level 1 investments are all registered investment companies (mutual funds) and include $6.8 million and $16.8 million, respectively, of money market mutual funds that the Company classifies as cash equivalents. Level 2 investments are all limited partnerships whose net asset value was determined based upon readily available market quotations of individual securities held by the partnerships. The Company determines transfers between fair value hierarchy levels at the end of the reporting period. There were no transfers in or out of the levels.

Limited Partnership Interests

DHCM is the managing member of Diamond Hill General Partner, LLC (the “General Partner”), the general partner of Diamond Hill Investment Partners, L.P. (“DHIP”), Diamond Hill Global Fund, L.P. ("DHGF"), and Diamond Hill Valuation-Weighted 500, L.P. (“DHVW”) (collectively, the “Partnerships”), each a limited partnership whose underlying assets consist of marketable securities.

DHCM, in its role as managing member of the General Partner, has the power to direct each Partnership’s economic activities and the right to receive investment advisory and performance incentive fees that may be significant to the Partnerships. The Company evaluated these Partnerships to determine whether or not to consolidate the entities in accordance with FASB ASC 810, Consolidation. Certain of these Partnerships are considered to be variable interest entities (“VIEs”) while others are considered to be voting rights entities (“VREs”), both of which are subject to consolidation consideration. The Company would consolidate VIEs where the Company is considered the primary beneficiary or VREs where the General Partner is considered to control the Partnership. For the Partnerships that were considered VIEs, the Company was not deemed to be the primary beneficiary. For the Partnerships that were considered VREs, it was determined that the DHCM in its role of managing member of the General Partner did not control the Partnerships. Therefore, the investments are accounted for under the equity method rather than being consolidated in the accompanying financial statements.

DHCM’s investments in these Partnerships are reported as a component of the Company’s investment portfolio, valued at DHCM’s proportionate interest in the net asset value of the marketable securities held by the Partnerships. Gains and losses attributable to changes in the value of DHCM’s interests in the Partnerships are included in the Company’s reported investment income. The Company’s exposure to loss as a result of its involvement with the Partnerships is limited to the amount of its investments. DHCM is not obligated to provide financial or other support to the Partnerships, other than its investments to date and its contractually provided investment advisory responsibilities, and has not provided such support. The Company has not provided liquidity arrangements, guarantees or other commitments to support the Partnerships’ operations, and the Partnerships’ creditors and interest holders have no recourse to the general credit of the Company.

Certain board members, officers and employees of the Company invest in DHIP and are not subject to a management fee or an incentive fee. These individuals receive no remuneration as a result of their personal investment in DHIP. The capital of the General Partner is not subject to a management fee or an incentive fee.

Furniture and Equipment

Furniture and equipment, consisting of computer equipment, furniture, and fixtures, are carried at cost less accumulated depreciation. Depreciation is calculated using the straight-line method over estimated lives of three to seven years.

Deferred Compensation Liability

Deferred compensation liability represents compensation that will be paid out upon satisfactory completion of certain performance-based and/or time-based criteria specified in employee award agreements or deferred compensation elections.

Revenue Recognition – General

The Company earns substantially all of its revenue from investment advisory and fund administration services. Investment advisory and administration fees, generally calculated as a percentage of assets under management (“AUM”), are recorded as revenue as services are performed. In addition to fixed fees based on a percentage of AUM, certain client accounts also provide periodic variable incentive fees.

Revenue Recognition – Incentive Revenue

The Company manages certain client accounts that provide for variable incentive fees. These fees are currently based on client investment results over rolling five year periods. For variable incentive fees based on a formula, there are two methods by which incentive revenue may be recorded. Under “Method 1”, incentive fees are recorded at the end of the contract measurement period; under “Method 2”, the incentive fees are recorded periodically and calculated as the amount that would be due under the formula at any point in time as if the contract was terminated at that date. Management has chosen Method 1, in which incentive fees are recorded at the end of the contract measurement period for the specific client in which the incentive fee applies. The table below shows AUM subject to incentive fees and the incentive fees, as calculated under each of the above methods:

	As Of March 31,
	2014		2013
AUM Contractual Period Ends:
Quarter Ended June 30, 2017	$	389,747,078	$	306,975,487
Quarter Ended December 31, 2018	92,348,018		—
Total AUM Subject to Incentive Fees	$	482,095,096	$	306,975,487

	For the Three Months Ended
	Ended March 31,
	2014		2013
Incentive Fees Under Method 1:
Contractual Period Ends:
Quarter Ended June 30, 2017	$	—	$	—
Quarter Ended December 31, 2018	—		—
Total Incentive Fees Under Method 1	$	—	$	—
Incentive Fees Under Method 2:
Contractual Period Ends:
Quarter Ended June 30, 2017	$	4,647,204	$	1,146,468
Quarter Ended December 31, 2018	—		—
Total Incentive Fees Under Method 2	$	4,647,204	$	1,146,468

Method 2 in the table illustrates the revenue that would be recognized if the variable incentive fee contract was terminated as of March 31, 2014 or 2013. The contractual end dates highlight the time remaining until the variable incentive fees are scheduled to be earned. The amounts under Method 2 above will increase or decrease based on future client investment results through the contractual period end, and there is no assurance that the above amounts will ultimately be earned.

Revenue Recognition – Mutual Fund Administration

DHCM has an administrative and transfer agency services agreement with the Funds, under which DHCM performs certain services for each Fund. These services include mutual fund administration, fund accounting, transfer agency and other related functions. For performing these services, each Fund pays DHCM a fee, which is calculated using an annual rate of 0.25% for Class A, C, and I shares and 0.10% for Class Y shares times the average daily net assets of each respective series and share class.

The Funds have selected and contractually engaged certain vendors to fulfill various services to benefit the Funds’ shareholders or to satisfy regulatory requirements of the Funds. These services include, among others, required shareholder mailings, federal and state registrations, and legal and audit services. DHCM, in fulfilling a portion of its role under the administration agreement with the Funds, acts as agent to pay these obligations of the Funds. Each vendor is independently responsible for fulfillment of the services it has been engaged to provide and negotiates fees and terms with the management and board of trustees of the Funds. The fee that each Fund pays to DHCM is reviewed annually by the Funds’ board of trustees and specifically takes into account the contractual expenses that DHCM pays on behalf of the Funds. As a result, DHCM is not involved in the delivery or pricing of these services and bears no risk related to these services. Revenue has been recorded net of these Fund related expenses, in accordance with FASB ASC 605-45, Revenue Recognition – Principal Agent Considerations. In addition, DHCM finances the upfront commissions which are paid to brokers who sell Class C shares of the Funds. As financer, DHCM advances the commission amount to be paid to the selling broker at the time of sale. These advances are capitalized and amortized over 12 months to correspond with the repayments DHCM receives from the principal underwriter to recoup this commission advancement.

Beacon Hill has underwriting and administrative service agreements with certain clients, including registered mutual funds. The fee arrangements vary from client to client based upon services provided and are recorded as revenue under mutual fund administration on the Consolidated Statements of Income. Part of Beacon Hill’s role as underwriter is to act as an agent on behalf of its mutual fund clients to receive 12b-1/service fees and commission revenue and facilitate the payment of those fees and commissions to third parties who provide services to the funds and their shareholders. The amount of 12b-1/service fees and commissions are determined by each mutual fund client, and Beacon Hill bears no financial risk related to these services. As a result, 12b-1/service fees and commission revenue has been recorded net of the expense payments to third parties, in accordance with the appropriate accounting treatment for this agency relationship.

Mutual fund administration gross and net revenue are summarized below:

	Three Months Ended   March 31,
	2014			2013
Mutual fund administration:
Administration revenue, gross	$	5,043,417		$	3,615,730
12b-1/service fees and commission revenue received from fund clients	2,481,771			1,812,388
12b-1/service fees and commission expense payments to third parties	(2,156,513		)	(1,588,813		)
Fund related expense	(2,089,175		)	(1,320,572		)
Revenue, net of fund related expenses	3,279,500			2,518,733
DHCM C-Share financing:
Broker commission advance repayments	173,890			56,658
Broker commission amortization	(175,100		)	(54,010		)
Financing activity, net	(1,210		)	2,648
Mutual fund administration revenue, net	$	3,278,290		$	2,521,381

Contractual Expense Reimbursements

During the fourth quarter of 2013, BHIL entered into an agreement with a third party investment adviser to provide staff to support the wholesaling functions and sales support services to distribute shares of the registered investment companies managed by the third party investment adviser and distributed by BHIL. Under the agreement, the third party investment adviser is obligated to reimburse BHIL for all expenses incurred in association with these efforts. The amount of expense incurred and reimbursed for the three months ended March 31, 2014 was $398,248. In addition, the third party investment adviser is obligated to reimburse BHIL for any contractual obligations entered into by BHIL as a result of this arrangement.

Income Taxes

The Company accounts for current and deferred income taxes through an asset and liability approach. Deferred tax assets are recognized for deductible temporary differences and deferred tax liabilities are recognized for taxable temporary differences. Deferred tax assets are reduced by a valuation allowance when it is more likely than not that some portion or all of the deferred tax assets will not be realized. Deferred tax assets and liabilities are adjusted for the effects of changes in tax laws and rates on the date of enactment.

The Company is subject to examination by various federal, state and local jurisdictions for various tax periods. The Company’s income tax positions are based on research and interpretations of the income tax laws and rulings in each of the jurisdictions in which the Company does business. Due to the subjectivity of interpretations of laws and rulings in each jurisdiction, the differences and interplay in tax laws between those jurisdictions, as well as the inherent uncertainty in estimating the final resolution of complex tax audit matters, the Company’s estimates of income tax liabilities may differ from actual payments or assessments. The Company regularly assesses its position with regard to tax exposures and records liabilities for these uncertain tax positions and related interest and penalties, if any, according to the principles of FASB ASC 740, Income Taxes. The Company records interest and penalties, if any, within the income tax provision on the income statement. As of March 31, 2014, the Company has not recorded any liability for uncertain tax positions.

Earnings Per Share

Basic earnings per share (“EPS”) excludes dilution and is computed by dividing net income by the weighted average number of Common Shares outstanding for the period, which includes participating securities. Diluted EPS reflects the potential dilution of EPS due to unvested restricted stock grants with forfeitable rights to dividends. For the periods presented, the Company has unvested stock-based payment awards that contain both forfeitable and nonforfeitable rights to dividends.

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Consolidated Balance Sheets (Parenthetical) (USD $)	Mar. 31, 2014	Dec. 31, 2013
Statement of Financial Position [Abstract]
Common stock, par value
Common stock, shares authorized	7,000,000	7,000,000
Common stock, shares issued	3,296,297	3,257,247
Common stock, shares outstanding	3,296,297	3,257,247
Preferred stock, shares authorized	1,000,000	1,000,000
Preferred stock, shares issued
Preferred Stock, shares Outstanding
Unvested shares	309,762	312,099

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Significant Accounting Policies (Tables)

3 Months Ended

Mar. 31, 2014

Accounting Policies [Abstract]

Summary of Investments Values Based upon Level 1 and Level 2

The following table summarizes the values of the Company’s investments based upon Level 1 and Level 2 inputs as of March 31, 2014 and December 31, 2013:

	March 31, 2014		December 31, 2013
Level 1 Inputs	$	36,869,820	$	32,528,367
Level 2 Inputs	4,520,041		3,001,461

Assets under Management (AUM) Subject to Incentive Fees and Incentive Fees

The table below shows AUM subject to incentive fees and the incentive fees, as calculated under each of the above methods:

	As Of March 31,
	2014		2013
AUM Contractual Period Ends:
Quarter Ended June 30, 2017	$	389,747,078	$	306,975,487
Quarter Ended December 31, 2018	92,348,018		—
Total AUM Subject to Incentive Fees	$	482,095,096	$	306,975,487

	For the Three Months Ended
	Ended March 31,
	2014		2013
Incentive Fees Under Method 1:
Contractual Period Ends:
Quarter Ended June 30, 2017	$	—	$	—
Quarter Ended December 31, 2018	—		—
Total Incentive Fees Under Method 1	$	—	$	—
Incentive Fees Under Method 2:
Contractual Period Ends:
Quarter Ended June 30, 2017	$	4,647,204	$	1,146,468
Quarter Ended December 31, 2018	—		—
Total Incentive Fees Under Method 2	$	4,647,204	$	1,146,468

Mutual Fund Administration Gross and Net Revenue

Mutual fund administration gross and net revenue are summarized below:

	Three Months Ended   March 31,
	2014			2013
Mutual fund administration:
Administration revenue, gross	$	5,043,417		$	3,615,730
12b-1/service fees and commission revenue received from fund clients	2,481,771			1,812,388
12b-1/service fees and commission expense payments to third parties	(2,156,513		)	(1,588,813		)
Fund related expense	(2,089,175		)	(1,320,572		)
Revenue, net of fund related expenses	3,279,500			2,518,733
DHCM C-Share financing:
Broker commission advance repayments	173,890			56,658
Broker commission amortization	(175,100		)	(54,010		)
Financing activity, net	(1,210		)	2,648
Mutual fund administration revenue, net	$	3,278,290		$	2,521,381

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Document and Entity Information	3 Months Ended
	Mar. 31, 2014	Apr. 25, 2014
Document and Entity Information [Abstract]
Document Type	10-Q
Amendment Flag	false
Document Period End Date	Mar. 31, 2014
Document Fiscal Year Focus	2014
Document Fiscal Period Focus	Q1
Entity Registrant Name	DIAMOND HILL INVESTMENT GROUP INC
Entity Central Index Key	0000909108
Current Fiscal Year End Date	--12-31
Entity Filer Category	Accelerated Filer
Entity Common Stock, Shares Outstanding		3,297,255

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Investment Portfolio (Tables)

3 Months Ended

Mar. 31, 2014

Investments, Debt and Equity Securities [Abstract]

Summary of Market Value of Investments

The following table summarizes the fair value of these investments as of March 31, 2014 and December 31, 2013:

	As of
	March 31, 2014		December 31, 2013
Diamond Hill Small Cap Fund	$	90,981	$	—
Diamond Hill Small-Mid Cap Fund	91,490		—
Diamond Hill Mid Cap Fund	10,216,718		—
Diamond Hill Large Cap Fund	1,252,670		—
Diamond Hill Select Fund	672,607		—
Diamond Hill Long-Short Fund	1,429,487		1,287,745
Diamond Hill Financial Long-Short Fund	1,168,846		1,131,034
Diamond Hill Research Opportunities Fund	14,334,100		13,305,830
Diamond Hill Strategic Income Fund	806,780		—
Diamond Hill Investment Partners, L.P.	1,155		1,133
Diamond Hill Global Fund, L.P.	1,467,879		—
Diamond Hill Valuation-Weighted 500, L.P.	3,051,007		3,000,328
Total Investment Portfolio	$	34,583,720	$	18,726,070

Schedule of Deferred Compensation Liability

The above investment portfolio includes the following amounts related to deferred compensation liabilities:

As of
March 31, 2014	December 31, 2013
5,206,252	1,287,745

Carrying Value and Income from Partnerships

The underlying assets of the Partnerships are cash and marketable equity securities. Summary financial information, including the Company’s carrying value and income from the Partnerships, is as follows:

	As of
	March 31, 2014		December 31, 2013
Total partnership assets	$	122,544,481	$	122,106,403
Total partnership liabilities	22,455,061		25,217,600
Net partnership assets	$	100,089,420	$	96,888,803
DHCM’s portion of net assets	$	4,520,041	$	3,001,461

	For the   Three Months Ended		For the Year Ended
	March 31, 2014		December 31, 2013
Net partnership income	$	1,700,616	$	24,294,495
DHCM’s portion of net income	$	93,580	$	899,958

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Consolidated Statements of Income (USD $)	3 Months Ended
	Mar. 31, 2014	Mar. 31, 2013
REVENUES:
Investment advisory	$ 19,910,807	$ 15,853,994
Mutual fund administration, net	3,278,290	2,521,381
Total revenue	23,189,097	18,375,375
OPERATING EXPENSES:
Compensation and related costs	11,871,954	9,513,412
General and administrative	1,581,356	1,392,468
Sales and marketing	491,882	434,287
Mutual fund administration	672,121	407,593
Total operating expenses	14,617,313	11,747,760
NET OPERATING INCOME	8,571,784	6,627,615
Investment income	516,529	1,824,659
INCOME BEFORE TAXES	9,088,313	8,452,274
Income tax provision	(3,338,715)	(3,121,541)
NET INCOME	$ 5,749,598	$ 5,330,733
Earnings per share
Basic (USD per share)	$ 1.82	$ 1.67
Diluted (USD per share)	$ 1.78	$ 1.67
Weighted average shares outstanding
Basic (in shares)	3,165,940	3,197,476
Diluted (in shares)	3,230,900	3,197,476

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Income Taxes

3 Months Ended

Mar. 31, 2014

Income Tax Disclosure [Abstract]

Income Taxes

Income Taxes

The provision for income taxes for the three months ended March 31, 2014 and 2013 consists of federal, state and city income taxes. The effective tax rates for the three months ended March 31, 2014 and 2013 were 36.7% and 36.9%, respectively.

The net temporary differences incurred to date will reverse in future periods as the Company generates taxable earnings. The Company believes it is more likely than not that the results of future operations will generate sufficient taxable income to realize the net deferred tax assets recorded. The Company records a valuation allowance when it is more likely than not that some portion or all of the deferred tax assets will not be realized. As of March 31, 2014 and December 31, 2013, no valuation allowance was deemed necessary.

FASB ASC 740, Income Taxes, prescribes a recognition threshold and measurement attribute for the financial statement recognition and measurement of a tax position taken or expected to be taken in a tax return and also provides guidance on derecognition, classification, interest and penalties, accounting in interim periods, disclosure and transition. The Company did not record an accrual for tax related uncertainties or unrecognized tax positions as of March 31, 2014 and December 31, 2013. The Company does not expect a change to the reserve for uncertain tax positions within the next twelve months that would have a material impact on the consolidated financial statements. As of March 31, 2014, the Company has recorded no interest expense through the tax provision. As of December 31, 2013, the Company recorded through the tax provision net interest expense of $321 thousand as a result of an IRS examination.

The Company files income tax returns in the federal and all applicable state and local jurisdictions. The Company is subject to federal, state and local examinations by tax authorities for tax years ended December 31, 2010 through 2013.

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Operating Leases

3 Months Ended

Mar. 31, 2014

Leases [Abstract]

Operating Leases

Operating Leases

The Company leases office space at three locations. The following table summarizes the total lease and operating expenses for the three months ended March 31, 2014 and 2013:

	March 31, 2014		March 31, 2013
Three Months Ended	$	226,089	$	175,888

The approximate future minimum lease payments under the operating leases are as follows:

		Future Minimum Lease Payments
		Nine Months   Remaining In
Total		2014		2015		2016		2017		2018		Thereafter
$	6,770,000	$	518,000	$	693,000	$	693,000	$	693,000	$	629,000	$	3,544,000

The total approximate future minimum lease payments of $6.8 million include $334 thousand of obligations resulting from a contractual expense reimbursement agreement ("Expense Agreement") with a third party. Under the Expense Agreement, these amounts are required to be reimbursed to the Company by the third party. The obligation of the third party to reimburse the Company for these expenses survives the termination of the Expense Agreement.

In addition to the above lease payments, the Company is also responsible for normal operating expenses of the properties. Such operating expenses were approximately $9.80 per square foot in 2013, on a combined basis, and are expected to be approximately $10.12 per square foot in 2014.

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Business and Organization - Narrative (Detail)	Mar. 31, 2014 Subsidiary
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Number of operating subsidiaries	3

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Compensation Plans (Tables)

3 Months Ended

Mar. 31, 2014

Disclosure of Compensation Related Costs, Share-based Payments [Abstract]

Roll-Forward of Outstanding Restricted Stock Grants Issued

The following table represents a roll-forward of outstanding Restricted Stock pursuant to the 2011 and 2005 Plans and related activity during the three months ended March 31, 2014 and the year ended December 31, 2013:

	Shares		Weighted-Average Grant Date Price per Share
Outstanding Restricted Stock as of December 31, 2012	319,988		$	74.22
Grants issued	32,000		85.63
Grants vested	(39,749	)	80.77
Grants forfeited	(140	)	77.81
Outstanding Restricted Stock as of December 31, 2013	312,099		$	74.17
Grants issued	22,163		117.07
Grants vested	(7,500	)	56.79
Grants forfeited	(3,000	)	78.29
Total outstanding Restricted Stock as of March 31, 2014	323,762		$	77.84

Expense Recognition of Deferred Compensation

Compensation expense recognition of deferred equity compensation over the remaining service periods is as follows:

Nine Months   Remaining In
2014		2015		2016		2017		2018		2019		Total
$	4,221,498	$	4,548,634	$	1,859,491	$	1,243,071	$	479,470	$	36,146	$	12,388,310

Schedule of Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Grant Date Intrinsic Value [Table Text Block]

The following table represents stock grant transactions during the three months ended March 31, 2014 and 2013:

	Shares Issued	Grant Date Value
March 31, 2014	33,745	$	3,984,817
March 31, 2013	59,006	4,606,008

Summary of Company's Expenses Attributable to 401(k) Plan

The following table summarizes the Company’s expenses attributable to the plan during the three months ended March 31, 2014 and 2013:

	March 31, 2014		March 31, 2013
Three Months Ended	$	323,744	$	280,213

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Commitments and Contingencies

3 Months Ended

Mar. 31, 2014

Commitments and Contingencies Disclosure [Abstract]

Commitments and Contingencies

Commitments and Contingencies

The Company indemnifies its directors and certain of its officers and employees for certain liabilities that might arise from their performance of their duties to the Company. Additionally, in the normal course of business, the Company enters into agreements that contain a variety of representations and warranties and which provide general indemnifications. Certain agreements do not contain any limits on the Company’s liability and would involve future claims that may be made against the Company that have not yet occurred. Therefore, it is not possible to estimate the Company’s potential liability under these indemnities. Further, the Company maintains insurance policies that may provide coverage against certain claims under these indemnities.

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Earnings Per Share

3 Months Ended

Mar. 31, 2014

Earnings Per Share [Abstract]

Earnings Per Share

Earnings Per Share

The Company’s common shares outstanding consist of all shares issued and outstanding, including unvested restricted shares. Basic and diluted EPS are calculated under the two-class method. Pursuant to the two-class method, the Company’s unvested restricted stock grants with nonforfeitable rights to dividends are considered participating securities. Dividends are paid on all common shares outstanding at the same rate. Accordingly, the Company has evaluated the impact of earnings per share of all participating securities under the two-class method, noting no impact on earnings per share. Restricted stock grants with forfeitable rights to dividends and restricted stock units are considered dilutive. The following table sets forth the computation for basic and diluted EPS and reconciliation between basic and diluted shares outstanding:

	Three Months Ended   March 31,
	2014		2013
Net income	$	5,749,598	$	5,330,733
Weighted average number of outstanding shares - Basic	3,165,940		3,197,476
Dilutive impact of restricted stock grants with forfeitable rights to dividends	63,326		—
Dilutive impact of restricted stock units	1,634		—
Weighted average number of outstanding shares - Diluted	3,230,900		3,197,476
Earnings per share
Basic	$	1.82	$	1.67
Diluted	$	1.78	$	1.67

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Regulatory Requirements

3 Months Ended

Mar. 31, 2014

Brokers and Dealers [Abstract]

Regulatory Requirements

Regulatory Requirements

BHIL, a wholly owned subsidiary of the Company and principal underwriter for mutual funds, is subject to the U.S. Securities and Exchange Commission (“SEC”) uniform net capital rule, which requires the maintenance of minimum net capital. BHIL’s net capital exceeded its minimum net capital requirement at March 31, 2014 and December 31, 2013. The net capital balances, minimum net capital requirements, and ratios of aggregate indebtedness to net capital for BHIL are summarized below as of March 31, 2014 and December 31, 2013:

	March 31, 2014		December 31, 2013
Net Capital	$	336,012	$	338,568
Minimum Net Capital Requirement	74,683		90,931
Ratio of Aggregate Indebtedness to Net Capital	3.33 to 1		4.03 to 1

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Significant Accounting Policies (Policies)

3 Months Ended

Mar. 31, 2014

Accounting Policies [Abstract]

Principles of Consolidation

Principles of Consolidation

The accompanying consolidated financial statements include the operations of the Company and its subsidiaries. All material inter-company transactions and balances have been eliminated in consolidation.

Segment Information

Segment Information

Management has determined that the Company operates in one business segment, namely providing investment management and administration services to mutual funds, institutional accounts, and private investment funds. Therefore, no disclosures relating to operating segments are required in annual or interim financial statements.

Cash and Cash Equivalents

Cash and Cash Equivalents

Cash and cash equivalents include demand deposits and money market mutual funds.

Accounts Receivable

Accounts Receivable

Accounts receivable are recorded when they are due and are presented on the balance sheet net of any allowance for doubtful accounts. Accounts receivable are written off when they are determined to be uncollectible. Any allowance for doubtful accounts is estimated based on the Company’s historical losses, existing conditions in the industry, and the financial stability of those individuals or entities that owe the receivable. No allowance for doubtful accounts was deemed necessary at March 31, 2014 or December 31, 2013.

Valuation of Investment Portfolio

Valuation of Investment Portfolio

Investments held by the Company are valued based upon the definition of Level 1 inputs and Level 2 inputs. Level 1 inputs are defined as fair values which use quoted prices in active markets for identical assets or liabilities. Level 2 inputs are defined as quoted prices in markets that are not considered to be active for identical assets or liabilities, quoted prices in active markets for similar assets or liabilities, and inputs other than quoted prices that are directly observable or that may be corroborated indirectly with observable market data. The following table summarizes the values of the Company’s investments based upon Level 1 and Level 2 inputs as of March 31, 2014 and December 31, 2013:

	March 31, 2014		December 31, 2013
Level 1 Inputs	$	36,869,820	$	32,528,367
Level 2 Inputs	4,520,041		3,001,461

Level 1 investments are all registered investment companies (mutual funds) and include $6.8 million and $16.8 million, respectively, of money market mutual funds that the Company classifies as cash equivalents. Level 2 investments are all limited partnerships whose net asset value was determined based upon readily available market quotations of individual securities held by the partnerships. The Company determines transfers between fair value hierarchy levels at the end of the reporting period. There were no transfers in or out of the levels.

Limited Partnership Interests

Limited Partnership Interests

DHCM is the managing member of Diamond Hill General Partner, LLC (the “General Partner”), the general partner of Diamond Hill Investment Partners, L.P. (“DHIP”), Diamond Hill Global Fund, L.P. ("DHGF"), and Diamond Hill Valuation-Weighted 500, L.P. (“DHVW”) (collectively, the “Partnerships”), each a limited partnership whose underlying assets consist of marketable securities.

DHCM, in its role as managing member of the General Partner, has the power to direct each Partnership’s economic activities and the right to receive investment advisory and performance incentive fees that may be significant to the Partnerships. The Company evaluated these Partnerships to determine whether or not to consolidate the entities in accordance with FASB ASC 810, Consolidation. Certain of these Partnerships are considered to be variable interest entities (“VIEs”) while others are considered to be voting rights entities (“VREs”), both of which are subject to consolidation consideration. The Company would consolidate VIEs where the Company is considered the primary beneficiary or VREs where the General Partner is considered to control the Partnership. For the Partnerships that were considered VIEs, the Company was not deemed to be the primary beneficiary. For the Partnerships that were considered VREs, it was determined that the DHCM in its role of managing member of the General Partner did not control the Partnerships. Therefore, the investments are accounted for under the equity method rather than being consolidated in the accompanying financial statements.

DHCM’s investments in these Partnerships are reported as a component of the Company’s investment portfolio, valued at DHCM’s proportionate interest in the net asset value of the marketable securities held by the Partnerships. Gains and losses attributable to changes in the value of DHCM’s interests in the Partnerships are included in the Company’s reported investment income. The Company’s exposure to loss as a result of its involvement with the Partnerships is limited to the amount of its investments. DHCM is not obligated to provide financial or other support to the Partnerships, other than its investments to date and its contractually provided investment advisory responsibilities, and has not provided such support. The Company has not provided liquidity arrangements, guarantees or other commitments to support the Partnerships’ operations, and the Partnerships’ creditors and interest holders have no recourse to the general credit of the Company.

Certain board members, officers and employees of the Company invest in DHIP and are not subject to a management fee or an incentive fee. These individuals receive no remuneration as a result of their personal investment in DHIP. The capital of the General Partner is not subject to a management fee or an incentive fee.

Furniture and Equipment

Furniture and Equipment

Furniture and equipment, consisting of computer equipment, furniture, and fixtures, are carried at cost less accumulated depreciation. Depreciation is calculated using the straight-line method over estimated lives of three to seven years.

Deferred Compensation Liability

Deferred Compensation Liability

Deferred compensation liability represents compensation that will be paid out upon satisfactory completion of certain performance-based and/or time-based criteria specified in employee award agreements or deferred compensation elections.

Revenue Recognition - General

Revenue Recognition – General

The Company earns substantially all of its revenue from investment advisory and fund administration services. Investment advisory and administration fees, generally calculated as a percentage of assets under management (“AUM”), are recorded as revenue as services are performed. In addition to fixed fees based on a percentage of AUM, certain client accounts also provide periodic variable incentive fees.

Revenue Recognition - Incentive Revenue

Revenue Recognition – Incentive Revenue

The Company manages certain client accounts that provide for variable incentive fees. These fees are currently based on client investment results over rolling five year periods. For variable incentive fees based on a formula, there are two methods by which incentive revenue may be recorded. Under “Method 1”, incentive fees are recorded at the end of the contract measurement period; under “Method 2”, the incentive fees are recorded periodically and calculated as the amount that would be due under the formula at any point in time as if the contract was terminated at that date. Management has chosen Method 1, in which incentive fees are recorded at the end of the contract measurement period for the specific client in which the incentive fee applies. The table below shows AUM subject to incentive fees and the incentive fees, as calculated under each of the above methods:

	As Of March 31,
	2014		2013
AUM Contractual Period Ends:
Quarter Ended June 30, 2017	$	389,747,078	$	306,975,487
Quarter Ended December 31, 2018	92,348,018		—
Total AUM Subject to Incentive Fees	$	482,095,096	$	306,975,487

	For the Three Months Ended
	Ended March 31,
	2014		2013
Incentive Fees Under Method 1:
Contractual Period Ends:
Quarter Ended June 30, 2017	$	—	$	—
Quarter Ended December 31, 2018	—		—
Total Incentive Fees Under Method 1	$	—	$	—
Incentive Fees Under Method 2:
Contractual Period Ends:
Quarter Ended June 30, 2017	$	4,647,204	$	1,146,468
Quarter Ended December 31, 2018	—		—
Total Incentive Fees Under Method 2	$	4,647,204	$	1,146,468

Method 2 in the table illustrates the revenue that would be recognized if the variable incentive fee contract was terminated as of March 31, 2014 or 2013. The contractual end dates highlight the time remaining until the variable incentive fees are scheduled to be earned. The amounts under Method 2 above will increase or decrease based on future client investment results through the contractual period end, and there is no assurance that the above amounts will ultimately be earned.

Revenue Recognition - Mutual Fund Administration

Revenue Recognition – Mutual Fund Administration

DHCM has an administrative and transfer agency services agreement with the Funds, under which DHCM performs certain services for each Fund. These services include mutual fund administration, fund accounting, transfer agency and other related functions. For performing these services, each Fund pays DHCM a fee, which is calculated using an annual rate of 0.25% for Class A, C, and I shares and 0.10% for Class Y shares times the average daily net assets of each respective series and share class.

The Funds have selected and contractually engaged certain vendors to fulfill various services to benefit the Funds’ shareholders or to satisfy regulatory requirements of the Funds. These services include, among others, required shareholder mailings, federal and state registrations, and legal and audit services. DHCM, in fulfilling a portion of its role under the administration agreement with the Funds, acts as agent to pay these obligations of the Funds. Each vendor is independently responsible for fulfillment of the services it has been engaged to provide and negotiates fees and terms with the management and board of trustees of the Funds. The fee that each Fund pays to DHCM is reviewed annually by the Funds’ board of trustees and specifically takes into account the contractual expenses that DHCM pays on behalf of the Funds. As a result, DHCM is not involved in the delivery or pricing of these services and bears no risk related to these services. Revenue has been recorded net of these Fund related expenses, in accordance with FASB ASC 605-45, Revenue Recognition – Principal Agent Considerations. In addition, DHCM finances the upfront commissions which are paid to brokers who sell Class C shares of the Funds. As financer, DHCM advances the commission amount to be paid to the selling broker at the time of sale. These advances are capitalized and amortized over 12 months to correspond with the repayments DHCM receives from the principal underwriter to recoup this commission advancement.

Beacon Hill has underwriting and administrative service agreements with certain clients, including registered mutual funds. The fee arrangements vary from client to client based upon services provided and are recorded as revenue under mutual fund administration on the Consolidated Statements of Income. Part of Beacon Hill’s role as underwriter is to act as an agent on behalf of its mutual fund clients to receive 12b-1/service fees and commission revenue and facilitate the payment of those fees and commissions to third parties who provide services to the funds and their shareholders. The amount of 12b-1/service fees and commissions are determined by each mutual fund client, and Beacon Hill bears no financial risk related to these services. As a result, 12b-1/service fees and commission revenue has been recorded net of the expense payments to third parties, in accordance with the appropriate accounting treatment for this agency relationship.

Mutual fund administration gross and net revenue are summarized below:

	Three Months Ended   March 31,
	2014			2013
Mutual fund administration:
Administration revenue, gross	$	5,043,417		$	3,615,730
12b-1/service fees and commission revenue received from fund clients	2,481,771			1,812,388
12b-1/service fees and commission expense payments to third parties	(2,156,513		)	(1,588,813		)
Fund related expense	(2,089,175		)	(1,320,572		)
Revenue, net of fund related expenses	3,279,500			2,518,733
DHCM C-Share financing:
Broker commission advance repayments	173,890			56,658
Broker commission amortization	(175,100		)	(54,010		)
Financing activity, net	(1,210		)	2,648
Mutual fund administration revenue, net	$	3,278,290		$	2,521,381

Contractual Expense Reimbursement

Contractual Expense Reimbursements

During the fourth quarter of 2013, BHIL entered into an agreement with a third party investment adviser to provide staff to support the wholesaling functions and sales support services to distribute shares of the registered investment companies managed by the third party investment adviser and distributed by BHIL. Under the agreement, the third party investment adviser is obligated to reimburse BHIL for all expenses incurred in association with these efforts. The amount of expense incurred and reimbursed for the three months ended March 31, 2014 was $398,248. In addition, the third party investment adviser is obligated to reimburse BHIL for any contractual obligations entered into by BHIL as a result of this arrangement.

Income Taxes

Income Taxes

The Company accounts for current and deferred income taxes through an asset and liability approach. Deferred tax assets are recognized for deductible temporary differences and deferred tax liabilities are recognized for taxable temporary differences. Deferred tax assets are reduced by a valuation allowance when it is more likely than not that some portion or all of the deferred tax assets will not be realized. Deferred tax assets and liabilities are adjusted for the effects of changes in tax laws and rates on the date of enactment.

The Company is subject to examination by various federal, state and local jurisdictions for various tax periods. The Company’s income tax positions are based on research and interpretations of the income tax laws and rulings in each of the jurisdictions in which the Company does business. Due to the subjectivity of interpretations of laws and rulings in each jurisdiction, the differences and interplay in tax laws between those jurisdictions, as well as the inherent uncertainty in estimating the final resolution of complex tax audit matters, the Company’s estimates of income tax liabilities may differ from actual payments or assessments. The Company regularly assesses its position with regard to tax exposures and records liabilities for these uncertain tax positions and related interest and penalties, if any, according to the principles of FASB ASC 740, Income Taxes. The Company records interest and penalties, if any, within the income tax provision on the income statement. As of March 31, 2014, the Company has not recorded any liability for uncertain tax positions.

Earnings Per Share

Earnings Per Share

Basic earnings per share (“EPS”) excludes dilution and is computed by dividing net income by the weighted average number of Common Shares outstanding for the period, which includes participating securities. Diluted EPS reflects the potential dilution of EPS due to unvested restricted stock grants with forfeitable rights to dividends. For the periods presented, the Company has unvested stock-based payment awards that contain both forfeitable and nonforfeitable rights to dividends.

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Compensation Plans - Expense Recognition of Deferred Compensation (Detail) (Restricted Stock Units (RSUs), USD $)	Mar. 31, 2014
Restricted Stock Units (RSUs)
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
2014 (Nine Months Remaining)	$ 4,221,498
2015	4,548,634
2016	1,859,491
2017	1,243,071
2018	479,470
2019	36,146
Total	$ 12,388,310

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Earnings Per Share (Tables)

3 Months Ended

Mar. 31, 2014

Earnings Per Share [Abstract]

Computation for Earnings Per Share

The following table sets forth the computation for basic and diluted EPS and reconciliation between basic and diluted shares outstanding:

	Three Months Ended   March 31,
	2014		2013
Net income	$	5,749,598	$	5,330,733
Weighted average number of outstanding shares - Basic	3,165,940		3,197,476
Dilutive impact of restricted stock grants with forfeitable rights to dividends	63,326		—
Dilutive impact of restricted stock units	1,634		—
Weighted average number of outstanding shares - Diluted	3,230,900		3,197,476
Earnings per share
Basic	$	1.82	$	1.67
Diluted	$	1.78	$	1.67

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Significant Accounting Policies - Mutual Fund Administration Gross and Net Revenue (Detail) (USD $)	3 Months Ended
	Mar. 31, 2014	Mar. 31, 2013
Mutual fund administration:
Administration revenue, gross	$ 5,043,417	$ 3,615,730
12b-1/service fees and commission revenue received from fund clients	2,481,771	1,812,388
12b-1/service fees and commission expense payments to third parties	(2,156,513)	(1,588,813)
Fund related expense	(2,089,175)	(1,320,572)
Revenue, net of fund related expenses	3,279,500	2,518,733
DHCM C-Share financing:
Broker commission advance repayments	173,890	56,658
Broker commission amortization	(175,100)	(54,010)
Financing activity, net	(1,210)	2,648
Mutual fund administration revenue, net	$ 3,278,290	$ 2,521,381

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Income Taxes - Narrative (Detail) (USD $)	3 Months Ended		12 Months Ended
	Mar. 31, 2014	Mar. 31, 2013	Dec. 31, 2013
Income Tax Disclosure [Abstract]
Effective tax rate	36.70%	36.90%
Valuation allowance	$ 0		$ 0
Interest Expense Recognized from Income tax examination	$ 0		$ 321,000

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Consolidated Statements of Cash Flows (USD $)	3 Months Ended
	Mar. 31, 2014	Mar. 31, 2013
CASH FLOWS FROM OPERATING ACTIVITIES:
Net Income	$ 5,749,598	$ 5,330,733
Adjustments to reconcile net income to net cash used in operating activities:
Depreciation on furniture and equipment	76,105	80,199
Stock-based compensation	1,924,466	1,486,008
Increase in accounts receivable	(394,303)	(1,080,720)
Change in current income taxes	(8,725,576)	678,466
Change in deferred income taxes	2,436,709	313,075
Net investment gain	(549,449)	(1,889,425)
Decrease in accrued compensation	(5,835,286)	(6,376,220)
Excess income tax benefit from stock-based compensation	(166,674)	0
Other changes in assets and liabilities	(844,856)	(707,787)
Net cash used in operating activities	(6,329,266)	(2,165,671)
CASH FLOWS FROM INVESTING ACTIVITIES:
Purchase of furniture and equipment	(56,556)	(305,257)
Cost of investments purchased and other portfolio activity	(15,308,201)	0
Net cash used in investing activities	(15,364,757)	(305,257)
CASH FLOWS FROM FINANCING ACTIVITIES:
Shares withheld related to employee tax withholding	(314,796)	0
Excess income tax benefit from stock-based compensation	166,674	0
Net cash used in financing activities	(148,122)	0
CASH AND CASH EQUIVALENTS
Net change during the period	(21,842,145)	(2,470,928)
At beginning of period	33,106,972	7,870,908
At end of period	11,264,827	5,399,980
Supplemental cash flow information:
Income taxes paid	9,700,831	2,130,000
Supplemental disclosure of non-cash transactions:
Common stock issued as incentive compensation	$ 3,753,088	$ 4,606,008

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Compensation Plans

3 Months Ended

Mar. 31, 2014

Disclosure of Compensation Related Costs, Share-based Payments [Abstract]

Compensation Plans

Compensation Plans

Equity Incentive Plans

2011 Equity and Cash Incentive Plan

At the Company’s annual shareholder meeting on April 26, 2011, shareholders approved the 2011 Equity and Cash Incentive Plan (“2011 Plan”). The 2011 Plan is intended to facilitate the Company’s ability to attract and retain staff, provide additional incentive to employees, directors and consultants, and promote the success of the Company’s business. The 2011 Plan authorizes the issuance of 600,000 Common Shares of the Company in various forms of equity awards. The 2011 Plan also authorizes cash incentive awards. As of March 31, 2014, there were 193,392 Common Shares available for awards under the 2011 Plan. The 2011 Plan provides that the Board of Directors, or a committee appointed by the Board, may grant awards and otherwise administer the 2011 Plan. Restricted stock units and restricted stock grants issued under the 2011 Plan, which vest over time, are recorded as deferred compensation in the equity section of the balance sheet on the grant date and then recognized as compensation expense based on the grant date price over the vesting period of the respective grant. Stock grants issued under the 2011 Plan are recorded as compensation expense based on the grant date price.

2005 Employee and Director Equity Incentive Plan

At the Company’s annual shareholder meeting on May 12, 2005, the shareholders approved the 2005 Employee and Director Equity Incentive Plan (“2005 Plan”). There are no longer any Common Shares available for future issuance under the 2005 Plan, although outstanding grants under the 2005 Plan remain issued and outstanding. Restricted stock grants issued under the 2005 Plan, which vest over time, were recorded as deferred compensation in the equity section of the balance sheet on the grant date and then recognized as compensation expense based on the grant date price over the vesting period of the respective grant. Stock grants issued under the 2005 Plan were recorded as compensation expense based on the grant date price.

Restricted Stock Transactions

The Company issues restricted stock units and restricted stock awards (collectively, "Restricted Stock"). Restricted stock units represent shares which may be issued in the future whereas restricted stock awards represent shares issued and outstanding upon grant with vesting restrictions. The following table represents a roll-forward of outstanding Restricted Stock pursuant to the 2011 and 2005 Plans and related activity during the three months ended March 31, 2014 and the year ended December 31, 2013:

	Shares		Weighted-Average Grant Date Price per Share
Outstanding Restricted Stock as of December 31, 2012	319,988		$	74.22
Grants issued	32,000		85.63
Grants vested	(39,749	)	80.77
Grants forfeited	(140	)	77.81
Outstanding Restricted Stock as of December 31, 2013	312,099		$	74.17
Grants issued	22,163		117.07
Grants vested	(7,500	)	56.79
Grants forfeited	(3,000	)	78.29
Total outstanding Restricted Stock as of March 31, 2014	323,762		$	77.84

Total deferred compensation related to unvested Restricted Stock grants was $12.4 million as of March 31, 2014. Compensation expense related to restricted stock units is calculated based upon the fair market value of the common stock on grant date reduced by the present value of expected dividends during the requisite service period discounted at the appropriate risk-free interest rate and is further adjusted for estimated forfeitures. Compensation expense related to the restricted stock grants is calculated based upon the fair market value of the common stock on grant date adjusted for estimated forfeitures. Compensation expense recognition of deferred equity compensation over the remaining service periods is as follows:

Nine Months   Remaining In
2014		2015		2016		2017		2018		2019		Total
$	4,221,498	$	4,548,634	$	1,859,491	$	1,243,071	$	479,470	$	36,146	$	12,388,310

Stock Grant Transactions

The following table represents stock grant transactions during the three months ended March 31, 2014 and 2013:

	Shares Issued	Grant Date Value
March 31, 2014	33,745	$	3,984,817
March 31, 2013	59,006	4,606,008

401(k) Plan

The Company sponsors a 401(k) plan under which all employees are eligible to participate. Employees may contribute a portion of their compensation, subject to certain limits based on federal tax laws. The Company makes matching contributions of common shares of the Company with a value equal to 200 percent of the first six percent of an employee’s compensation contributed to the plan. Employees become fully vested in the matching contributions after six plan years of employment. The following table summarizes the Company’s expenses attributable to the plan during the three months ended March 31, 2014 and 2013:

	March 31, 2014		March 31, 2013
Three Months Ended	$	323,744	$	280,213

Deferred Compensation Plans

On April 24, 2013, the Board of Directors approved the Diamond Hill Fixed Term Deferred Compensation Plan and the Diamond Hill Variable Term Deferred Compensation Plan (collectively the “Plans”). Under the Plans, participants may elect to voluntarily defer, for a minimum of five years, certain incentive compensation, which the Company then contributes into the Plans. Each participant is responsible for designating investment options for assets they contribute, and the distribution paid to each participant reflects any gains or losses on the assets realized while in the Plans. Assets held in the Plans will be included in the Company’s investment portfolio and the associated obligation to participants is included in deferred compensation liability. Assets held in the Plans consist of the Diamond Hill Funds and are recorded at fair value. The first deferrals into the Plans were made during the first quarter of 2014 and are valued at $3.9 million as of March 31, 2014. Amounts contributed to the Plans are expensed in the year in which the compensation was earned, however a tax deduction for federal and state income taxes is deferred until amounts are distributed from the Plans and reflected as a deferred tax asset.

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Significant Accounting Policies - Narrative (Detail) (USD $)	3 Months Ended
	Mar. 31, 2014 Segment	Dec. 31, 2013
Business Organization And Significant Accounting Policies [Line Items]
Number of business segment	1
Allowance for doubtful accounts	$ 0	$ 0
Client Performance Period	5 years
Advance commissions amortization period	12 months
Contractual Expense Reimburse, Net	398,248
Class A, C, and I Shares
Business Organization And Significant Accounting Policies [Line Items]
Rate of Administrative Service Fees	0.25%
Class Y
Business Organization And Significant Accounting Policies [Line Items]
Rate of Administrative Service Fees	0.10%
Minimum | Furniture and Fixtures
Business Organization And Significant Accounting Policies [Line Items]
Property, Plant and Equipment, Useful Life	3 years
Minimum | Computer Equipment
Business Organization And Significant Accounting Policies [Line Items]
Property, Plant and Equipment, Useful Life	3 years
Maximum | Furniture and Fixtures
Business Organization And Significant Accounting Policies [Line Items]
Property, Plant and Equipment, Useful Life	7 years
Maximum | Computer Equipment
Business Organization And Significant Accounting Policies [Line Items]
Property, Plant and Equipment, Useful Life	7 years
Mutual Funds | Money Market Funds | Level 1 Inputs
Business Organization And Significant Accounting Policies [Line Items]
Cash Equivalent Fair Value	$ 6,800,000	$ 16,800,000

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Operating Leases - Summary of Total Lease and Operating Expenses (Detail) (USD $)	3 Months Ended
	Mar. 31, 2014	Mar. 31, 2013
Leases [Abstract]
Lease and operating expenses	$ 226,089	$ 175,888

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Operating Leases (Tables)

3 Months Ended

Mar. 31, 2014

Leases [Abstract]

Summary of Total Lease and Operating Expenses

The following table summarizes the total lease and operating expenses for the three months ended March 31, 2014 and 2013:

	March 31, 2014		March 31, 2013
Three Months Ended	$	226,089	$	175,888

Future Minimum Lease Payments under Operating Leases

The approximate future minimum lease payments under the operating leases are as follows:

		Future Minimum Lease Payments
		Nine Months   Remaining In
Total		2014		2015		2016		2017		2018		Thereafter
$	6,770,000	$	518,000	$	693,000	$	693,000	$	693,000	$	629,000	$	3,544,000