PC Connection (CNXN) 10-K 6 Mar 15 2014 FY Annual report Financial data

Document_and_Entity_Informatio

Document and Entity Information (USD $)	12 Months Ended
	Dec. 31, 2014	Feb. 16, 2015	Jun. 30, 2014
Document Information [Line Items]
Document Type	10-K
Amendment Flag	FALSE
Document Period End Date	31-Dec-14
Document Fiscal Year Focus	2014
Document Fiscal Period Focus	FY
Trading Symbol	PCCC
Entity Registrant Name	PC CONNECTION INC
Entity Central Index Key	1050377
Current Fiscal Year End Date	-19
Entity Well-known Seasoned Issuer	No
Entity Current Reporting Status	Yes
Entity Voluntary Filers	No
Entity Filer Category	Accelerated Filer
Entity Common Stock, Shares Outstanding		26,343,460
Entity Public Float			$206,622,979

Consolidated_Balance_Sheets

Consolidated Balance Sheets (USD $)	Dec. 31, 2014	Dec. 31, 2013
In Thousands, unless otherwise specified
Current Assets:
Cash and cash equivalents	$60,909	$42,547
Accounts receivable, net	293,027	283,051
Inventories	90,917	79,141
Deferred income taxes	7,749	6,382
Prepaid expenses and other current assets	5,332	5,117
Income taxes receivable	212	2,256
Total current assets	458,146	418,494
Property and equipment, net	27,861	27,600
Goodwill	51,276	51,276
Other intangibles, net	1,953	2,854
Other assets	724	720
Total Assets	539,960	500,944
Current Liabilities:
Accounts payable	124,893	124,821
Accrued expenses and other liabilities	22,011	22,362
Accrued payroll	17,793	14,935
Total current liabilities	164,697	162,118
Deferred income taxes	18,803	16,224
Other liabilities	2,452	2,773
Total Liabilities	185,952	181,115
Commitments and Contingencies (Note 10)
Stockholders' Equity:
Preferred Stock, $.01 par value, 10,000 shares authorized, none issued
Common Stock, $.01 par value, 100,000 shares authorized, 28,199 and 28,056 issued, 26,343 and 26,200 outstanding at December 31, 2014 and 2013, respectively	282	281
Additional paid-in capital	106,956	104,932
Retained earnings	262,632	230,478
Treasury stock at cost, 1,856 shares at December 31, 2014 and 2013	-15,862	-15,862
Total Stockholders' Equity	354,008	319,829
Total Liabilities and Stockholders' Equity	$539,960	$500,944

Consolidated_Balance_Sheets_Pa

Consolidated Balance Sheets (Parenthetical) (USD $)	Dec. 31, 2014	Dec. 31, 2013
In Thousands, except Per Share data, unless otherwise specified
Preferred Stock, par value	$0.01	$0.01
Preferred Stock, shares authorized	10,000	10,000
Preferred Stock, shares issued	0	0
Common Stock, par value	$0.01	$0.01
Common Stock, shares authorized	100,000	100,000
Common Stock, shares issued	28,199	28,056
Common Stock, shares outstanding	26,343	26,200
Treasury stock, shares	1,856	1,856

Consolidated_Statements_of_Inc

Consolidated Statements of Income (USD $)	3 Months Ended								12 Months Ended
In Thousands, except Per Share data, unless otherwise specified	Dec. 31, 2014	Sep. 30, 2014	Jun. 30, 2014	Mar. 31, 2014	Dec. 31, 2013	Sep. 30, 2013	Jun. 30, 2013	Mar. 31, 2013	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Net sales	$630,765	$639,570	$633,244	$559,760	$578,572	$580,356	$557,287	$505,423	$2,463,339	$2,221,638	$2,158,873
Cost of sales	547,641	555,918	549,478	486,913	502,879	503,803	483,371	438,585	2,139,950	1,928,638	1,876,784
Gross profit	83,124	83,652	83,766	72,847	75,693	76,553	73,916	66,838	323,389	293,000	282,089
Selling, general and administrative expenses	63,035	63,235	64,564	61,101	59,315	59,043	58,533	56,713	251,935	233,604	226,322
Special charges											1,135
Income from operations	20,089	20,417	19,202	11,746	16,378	17,510	15,383	10,125	71,454	59,396	54,632
Interest expense	-14	-36	-26	-10	-11	-39	-46	-53	-86	-149	-166
Other, net					-3			3			41
Income before taxes	20,075	20,381	19,176	11,736	16,364	17,471	15,337	10,075	71,368	59,247	54,507
Income tax provision	-8,131	-8,204	-7,747	-4,605	-6,523	-6,882	-6,183	-3,977	-28,687	-23,565	-21,436
Net income	$11,944	$12,177	$11,429	$7,131	$9,841	$10,589	$9,154	$6,098	$42,681	$35,682	$33,071
Earnings per common share:
Basic	$0.45	$0.46	$0.44	$0.27	$0.38	$0.40	$0.35	$0.23	$1.63	$1.37	$1.25
Diluted	$0.45	$0.46	$0.43	$0.27	$0.37	$0.40	$0.35	$0.23	$1.61	$1.35	$1.24
Denominator:
Basic	26,311	26,266	26,206	26,202	26,181	26,169	26,127	25,998	26,246	26,120	26,431
Diluted	26,554	26,524	26,487	26,485	26,453	26,399	26,379	26,272	26,512	26,387	26,586

Consolidated_Statement_Of_Chan

Consolidated Statement Of Changes In Stockholders' Equity (USD $)	Total	Common Stock	Additional Paid-In Capital	Retained Earnings	Treasury Shares
In Thousands, except Share data
Balance at Dec. 31, 2011	$273,529	$276	$99,957	$182,274	($8,978)
Balance (in shares) at Dec. 31, 2011		27,613,000			-1,248,000
Issuance of common stock under stock incentive plans (in shares)		110,000
Issuance of common stock under stock incentive plans	872	1	871
Issuance of common stock under Employee Stock Purchase Plan (in shares)		49,000
Issuance of common stock under Employee Stock Purchase Plan	515	1	514
Stock-based compensation expense	1,494		1,494
Nonvested stock awards (in shares)					177,000
Nonvested stock awards			-1,314		1,314
Shares withheld for taxes paid on stock awards (in Shares)					-52,000
Shares withheld for taxes paid on stock awards	-504				-504
Tax benefit from stock-based compensation	213		213
Repurchase of common stock for treasury (in shares)	-762,000				-762,000
Repurchase of common stock for treasury	-7,813				-7,813
Dividend payment	-10,074			-10,074
Net income	33,071			33,071
Balance at Dec. 31, 2012	291,303	278	101,735	205,271	-15,981
Balance (in shares) at Dec. 31, 2012		27,772,000			-1,885,000
Issuance of common stock under stock incentive plans (in shares)		225,000
Issuance of common stock under stock incentive plans	1,779	2	1,777
Issuance of common stock under Employee Stock Purchase Plan (in shares)		33,000
Issuance of common stock under Employee Stock Purchase Plan	591	1	590
Stock-based compensation expense	958		958
Nonvested stock awards (in shares)		26,000			48,000
Nonvested stock awards			-403		403
Shares withheld for taxes paid on stock awards (in Shares)					-19,000
Shares withheld for taxes paid on stock awards	-577		-293		-284
Tax benefit from stock-based compensation	568		568
Repurchase of common stock for treasury (in shares)	0
Dividend payment	-10,475			-10,475
Net income	35,682			35,682
Balance at Dec. 31, 2013	319,829	281	104,932	230,478	-15,862
Balance (in shares) at Dec. 31, 2013	28,056,000	28,056,000			-1,856,000
Issuance of common stock under stock incentive plans (in shares)		49,000
Issuance of common stock under stock incentive plans	356		356
Issuance of common stock under Employee Stock Purchase Plan (in shares)		35,000
Issuance of common stock under Employee Stock Purchase Plan	753		753
Stock-based compensation expense	929		929
Nonvested stock awards (in shares)		59,000
Nonvested stock awards		1	-1
Shares withheld for taxes paid on stock awards	-578		-578
Tax benefit from stock-based compensation	565		565
Repurchase of common stock for treasury (in shares)	0
Dividend payment	-10,527			-10,527
Net income	42,681			42,681
Balance at Dec. 31, 2014	$354,008	$282	$106,956	$262,632	($15,862)
Balance (in shares) at Dec. 31, 2014	28,199,000	28,199,000			-1,856,000

Consolidated_Statements_of_Cas

Consolidated Statements of Cash Flows (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Cash Flows from Operating Activities:
Net income	$42,681	$35,682	$33,071
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	8,092	7,089	6,895
Provision for doubtful accounts	1,383	1,078	1,561
Deferred income taxes	1,212	4,578	674
Stock-based compensation expense	929	958	1,494
Loss on disposal of fixed assets	14	5	82
Excess tax benefit from exercise of equity awards	-556	-260	-15
Income tax benefit from stock-based compensation			213
Fair value adjustment to contingent consideration			-44
Changes in assets and liabilities:
Accounts receivable	-11,359	-16,819	26,317
Inventories	-11,776	-9,504	7,800
Prepaid expenses and other current assets	1,829	-3,005	2,272
Other non-current assets	-4	-6	-62
Accounts payable	202	-1,371	-4,613
Accrued expenses and other liabilities	2,751	1,231	-5,986
Net cash provided by operating activities	35,398	19,656	69,659
Cash Flows from Investing Activities:
Purchases of property and equipment	-7,609	-7,607	-9,250
Proceeds from sale of equipment	13	2	10
Net cash used for investing activities	-7,596	-7,605	-9,240
Cash Flows from Financing Activities:
Repayment of short-term borrowings			-12,471
Proceeds from short-term borrowings			7,204
Dividend payment	-10,527	-10,475	-10,074
Issuance of stock under Employee Stock Purchase Plan	753	591	515
Excess tax benefit from exercise of equity awards	556	260	15
Exercise of stock options	356	1,779	872
Payment of payroll taxes on stock-based compensation through shares withheld	-578	-577	-504
Repayment of capital lease obligation to affiliate		-989	-971
Purchase of treasury shares			-7,813
Payment of contingent consideration			-1,900
Net cash used for financing activities	-9,440	-9,411	-25,127
Increase in cash and cash equivalents	18,362	2,640	35,292
Cash and cash equivalents, beginning of year	42,547	39,907	4,615
Cash and cash equivalents, end of year	60,909	42,547	39,907
Non-cash Investing and Financing Activities:
Accrued capital expenditures	205	335	253
Issuance of nonvested stock from treasury		403	1,314
Supplemental Cash Flow Information:
Income taxes paid	24,219	20,891	19,025
Interest paid		$101	$244

Summary_of_Significant_Account

Summary of Significant Accounting Policies	12 Months Ended
	Dec. 31, 2014
Summary of Significant Accounting Policies	1. SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES
	We are a national solutions provider of a wide range of information technology (“IT”) solutions. We help our customers design, enable, manage, and service their IT environments. We provide IT products, including computer systems, software and peripheral equipment, networking communications, and other products and accessories that we purchase from manufacturers, distributors, and other suppliers. We also offer services involving design, configuration, and implementation of IT solutions. These services are performed by our personnel and by third-party providers. We operate through three sales segments, which serve primarily: (a) small- to medium-sized businesses, in our SMB segment, through our PC Connection Sales subsidiary, (b) large enterprise customers, in our Large Account segment, through our MoreDirect subsidiary, and (c) federal, state, and local government and educational institutions, in our Public Sector segment, through our GovConnection subsidiary.
	The following is a summary of our significant accounting policies:
	Principles of Consolidation
	The consolidated financial statements include the accounts of PC Connection, Inc. and its subsidiaries, all of which are wholly-owned. Intercompany transactions and balances are eliminated in consolidation.
	Use of Estimates in the Preparation of Financial Statements
	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. These estimates and assumptions affect the reported amounts and disclosures of assets and liabilities and the reported amounts and disclosures of revenue and expenses during the period. By nature, estimates are subject to an inherent degree of uncertainty. Actual results could differ from those estimates and assumptions.
	Revenue Recognition
	Revenue on product sales is recognized at the point in time when persuasive evidence of an arrangement exists, the price is fixed or determinable, delivery has occurred, and there is a reasonable assurance of collection of the sales proceeds. We generally obtain oral or written purchase authorizations from our customers for a specified amount of product at a specified price. Because we either (i) have a general practice of covering customer losses while products are in-transit despite title transferring at the point of shipment or (ii) have FOB–destination shipping terms specifically set out in our arrangements with federal agencies and certain commercial customers, delivery is deemed to have occurred at the point in time when the product is received by the customer.
	We provide our customers with a limited thirty-day right of return generally limited to defective merchandise. Revenue is recognized at delivery and a reserve for sales returns is recorded. We make reasonable and reliable estimates of product returns based on significant historical experience and record our sales reserves as a reduction of revenues and either as offsets to accounts receivable or, for customers who have already paid, as offsets to accrued expenses. At December 31, 2014, we recorded sales reserves of $3,223 and $205 as components of accounts receivable and accrued expenses, respectively. At December 31, 2013, we recorded sales reserves of $3,060 and $208 as components of accounts receivable and accrued expenses, respectively.
	All amounts billed to a customer in a sales transaction related to shipping and handling, if any, represent revenues earned for the goods provided, and these amounts have been classified as “net sales.” Costs related to such shipping and handling billings are classified as “cost of sales.” Sales are reported net of sales, use, or other transaction taxes that are collected from customers and remitted to taxing authorities.
	We use our own engineering personnel in projects involving the design and installation of systems and networks, and we also engage third-party service providers to perform warranty maintenance, implementations, asset disposals, and other services. This service revenue represents a small percentage of our consolidated revenue. We evaluate such engagements to determine whether we or the third party assumes the general risk and reward of ownership in these transactions. For those transactions in which we do not assume the risk and reward but instead act as an agent, we recognize the transaction revenue on a net basis. Under net sales recognition, the cost of the third party is recorded as a reduction to the selling price, resulting in net sales being equal to the gross profit on the transaction. In those engagements in which we are the principal and primary obligor, we report the sale on a gross basis, and the cost of the service provider is recognized in cost of goods sold.
	Similarly, we recognize revenue from agency sales transactions on a net sales basis. In agency sales transactions, we facilitate product sales by equipment and software manufacturers directly to our customers and receive agency, or referral, fees for such transactions. We do not take title to the products or assume any maintenance or return obligations in these transactions; title is passed directly from the supplier to our customer.
	Amounts recognized on a net basis included in net sales for such third-party services and agency sales transactions were $25,696, $20,570, and $18,870 for the years ended December 31, 2014, 2013, and 2012, respectively.
	In certain revenue arrangements, our contracts require that we provide multiple units of hardware, software, or services deliverables. Under these multiple-element arrangements, each service performed and product delivered is considered a separate deliverable and qualifies as a separate unit of accounting. For material multiple element arrangements, we allocate revenue based on vendor-specific objective evidence of fair value of the underlying services and products. If we were to enter into a multiple element arrangement in which vendor-specific objective evidence was not available, we would utilize third-party evidence to allocate the selling price. If neither vendor-specific objective evidence nor third-party evidence was available, we would estimate the selling price based on market price and company specific factors.
	Cost of Sales and Certain Other Costs
	Cost of sales includes the invoice cost of the product, direct employee and third party cost of services, direct costs of packaging, inbound and outbound freight, and provisions for inventory obsolescence, adjusted for discounts, rebates, and other vendor allowances. Direct operating expenses relating to our purchasing function and receiving, inspection, warehousing, packing and shipping, and other expenses of our distribution center are included in our SG&A expenses. Accordingly, our gross margin may not be comparable to those of other entities who include all of the costs related to their distribution network in cost of goods sold. Such distribution costs included in our SG&A expenses are as follows:
	Years Ended December 31,
	2014	2013		2012
	$13,934	$	13,843	$	13,878
	Cash and Cash Equivalents
	We consider all highly liquid short-term investments with original maturities of 90 days or less to be cash equivalents. The carrying value of our cash equivalents approximates fair value. The majority of payments due from credit card processors and banks for third-party credit card and debit card transactions process within one to five business days. All credit card and debit card transactions that process in less than seven days are classified as cash and cash equivalents. Amounts due from banks for credit card transactions classified as cash equivalents totaled $3,863 and $5,115 at December 31, 2014 and 2013, respectively.
	Accounts Receivable
	We perform ongoing credit evaluations of our customers and adjust credit limits based on payment history and customer creditworthiness. We maintain an allowance for estimated doubtful accounts based on our historical experience and the customer credit issues identified. Our customers do not post collateral for open accounts receivable. We monitor collections regularly and adjust the allowance for doubtful accounts as necessary to recognize any changes in credit exposure. Trade receivables are charged off in the period in which they are deemed uncollectible. Recoveries of trade receivables previously charged are recorded when received.
	Inventories
	Inventories (all finished goods) consisting of software packages, computer systems, and peripheral equipment, are stated at cost (determined under a weighted-average cost method which approximates the first-in, first-out method) or market, whichever is lower. Inventory quantities on hand are reviewed regularly, and allowances are maintained for obsolete, slow moving, and nonsalable inventory.
	Vendor Allowances
	We receive allowances from merchandise vendors for price protections, discounts, product rebates, and other programs. These allowances are treated as a reduction of the vendor’s prices and are recorded as adjustments to cost of sales or inventory, as applicable. Allowances for product rebates that require certain volumes of product sales or purchases are recorded as the related milestones are probable of being met.
	Advertising Costs and Allowances
	Costs of producing and distributing catalogs are charged to expense in the period in which the catalogs are first circulated. Other advertising costs are expensed as incurred.
	Vendors have the ability to place advertisements in our catalogs or fund other advertising activities for which we receive advertising allowances. These vendor allowances, to the extent that they represent specific reimbursements of incremental and identifiable costs, are offset against SG&A expenses. Advertising allowances that cannot be associated with a specific program funded by an individual vendor or that exceed the fair value of advertising expense associated with that program are classified as offsets to cost of sales or inventory. Our vendor partners generally consolidate their funding of advertising and other marketing programs, and accordingly, we classify substantially all vendor consideration as a reduction of cost of sales or inventory rather than a reduction of advertising expense. Advertising expense, which is classified as a component of SG&A expenses, totaled $15,767, $18,019, and $20,029, for the years ended December 31, 2014, 2013, and 2012, respectively.
	Property and Equipment
	Property and equipment are stated at cost, net of accumulated depreciation and amortization. Depreciation and amortization is provided for financial reporting purposes over the estimated useful lives of the assets ranging from three to seven years. Computer software, including licenses and internally developed software, is capitalized and amortized over lives ranging from three to seven years. Depreciation is recorded using the straight-line method. Leasehold improvements and facilities under capital leases are amortized over the terms of the related leases or their useful lives, whichever is shorter, whereas for income tax reporting purposes, they are amortized over the applicable tax lives.
	Costs incurred to develop internal-use software during the application development stage are recorded in property and equipment at cost. External direct costs of materials and services consumed in developing or obtaining internal-use computer software and payroll-related costs for employees developing internal-use computer software projects, to the extent of their time spent directly on the project and specific to application development, are capitalized.
	When events or circumstances indicate a potential impairment, we evaluate the carrying value of property and equipment based upon current and anticipated undiscounted cash flows. We recognize impairment when it is probable that such estimated future cash flows will be less than the asset carrying value.
	Goodwill and Other Intangible Assets
	Our intangible assets consist of goodwill, which is not subject to amortization, and amortizing intangibles, which consist of customer lists, trade names, and certain technology licensing agreements, which are being amortized over their useful lives.
	Note 2 describes the annual impairment methodology that we employ on January 1st of each year in calculating the recoverability of goodwill. This same impairment test is performed at other times during the course of a year should an event occur or circumstance change that would more likely than not reduce the fair value of a reporting unit below its carrying amount.
	Recoverability of amortizing intangible assets is assessed only when events have occurred that may give rise to impairment. When a potential impairment has been identified, forecasted undiscounted net cash flows of the operations to which the asset relates are compared to the current carrying value of the long-lived assets present in that operation. If such cash flows are less than such carrying amounts, long-lived assets including such intangibles, are written down to their respective fair values.
	Concentrations
	Concentrations of credit risk with respect to trade account receivables are limited due to the large number of customers comprising our customer base. No single customer accounted for more than 2% of total net sales in 2014, 2013, and 2012. While no single agency of the federal government comprised more than 2% of total sales, aggregate sales to the federal government as a percentage of total net sales were 6.5%, 6.4%, and 8.4% in 2014, 2013, and 2012, respectively.
	Product purchases from Ingram Micro, Inc. (“Ingram”), our largest supplier, accounted for approximately 25%, 24%, and 26% of our total product purchases in 2014, 2013, and 2012, respectively. Purchases from Synnex Corporation (“Synnex”) comprised 13%, 12%, and 14% of our total product purchases in 2014, 2013, and 2012, respectively. Purchases from Tech Data Corporation (“Tech Data”) comprised 8% of our total product purchases in 2014 and 10% in 2013 and 2012, respectively. No other vendor supplied more than 10% of our total product purchases in 2014, 2013, or 2012. We believe that, while we may experience some short-term disruption, alternative sources for products obtained directly from Ingram, Synnex, and Tech Data are available to us.
	Products manufactured by HP represented 22%, 25%, and 27% of our net sales in 2014, 2013, and 2012, respectively. We believe that in the event we experience either a short-term or permanent disruption of supply of HP products, such disruption would likely have a material adverse effect on our results of operations and cash flows.
	Earnings Per Share
	Basic earnings per common share is computed using the weighted average number of shares outstanding. Diluted earnings per share is computed using the weighted average number of shares outstanding adjusted for the incremental shares attributable to nonvested stock units and stock options outstanding, if dilutive.
	The following table sets forth the computation of basic and diluted earnings per share:
		2014		2013		2012
	Numerator:
	Net income	$	42,681	$	35,682	$	33,071
	Denominator:
	Denominator for basic earnings per share		26,246		26,120		26,431
	Dilutive effect of employee stock awards		266		267		155
	Denominator for diluted earnings per share		26,512		26,387		26,586
	Earnings per share:
	Basic	$	1.63	$	1.37	$	1.25
	Diluted	$	1.61	$	1.35	$	1.24
	For the years ended December 31, 2014, 2013, and 2012, the following outstanding nonvested stock units and stock options were excluded from the computation of diluted earnings per share because including them would have had an anti-dilutive effect:
		2014		2013		2012
	Employee stock awards		98		162		299
	Comprehensive Income
	We had no items of comprehensive income, other than our net income for each of the periods presented.
	Recently Issued Financial Accounting Standards
	On May 28, 2014, the Financial Accounting Standards Board, or the FASB, issued Accounting Standards Update 2014-09, Revenue from Contracts with Customers (“ASU 2014-09”), its final standard on revenue from contracts with customers. ASU 2014-09 outlines a single comprehensive model for entities to use in accounting for revenue arising from contracts with customers and supersedes most current revenue recognition guidance, including industry-specific guidance. The core principle of the revenue model is that an entity recognizes revenue to depict the transfer of promised goods or services to customers in an amount that reflects the consideration to which the entity expects to be entitled in exchange for those goods or services. In applying the revenue model to contracts within its scope, an entity identifies the contract(s) with a customer, identifies the performance obligations in the contract, determines the transaction price, allocates the transaction price to the performance obligations in the contract, and recognizes revenue when (or as) the entity satisfies a performance obligation. ASU 2014-09 applies to all contracts with customers that are within the scope of other topics in the FASB Accounting Standards Codification. ASU 2014-09 also requires significantly expanded disclosures about revenue recognition. ASU 2014-09 is effective for us on January 1, 2017. The Company is currently assessing the potential impact of the adoption of ASU 2014-09 on its consolidated financial statements.

Goodwill_and_Other_Intangible_

Goodwill and Other Intangible Assets	12 Months Ended
	Dec. 31, 2014
Goodwill and Other Intangible Assets	2. GOODWILL AND OTHER INTANGIBLE ASSETS
	Goodwill
	Goodwill is subject to an annual impairment test and tested more frequently if events or circumstances occur that would indicate a potential decline in fair value. For goodwill, a two-step quantitative test is performed at a reporting unit level which requires, under the first step, that the fair value of a reporting unit is determined and compared to the reporting unit’s carrying value, including goodwill. To assess the fair value of a reporting unit, both income and market valuation approaches are used. If the fair value is determined to be less than the carrying value, the second step is performed to measure the amount of the impairment.
	Our annual impairment test of goodwill is set as of the first day of the year. Goodwill is held by our Large Account reporting unit. The fair value of the Large Account reporting unit substantially exceeded its carrying value; accordingly, we did not identify any goodwill impairment for 2014. We also did not identify any events or circumstances that would indicate that it is more likely than not that the carrying value of the reporting unit was in excess of the fair value during the year ended December 31, 2014.
	To determine the fair value of our reporting unit, we considered operating results and future projections, as well as changes in the Company’s overall market capitalization, in addition to the market capitalization of our competitors. The significant assumptions used in our discounted cash flow analysis include: projected cash flows and profitability, the discount rate used to present value future cash flows, working capital requirements, and terminal growth rates. Cash flows and profitability assumptions include sales growth, gross margin, and SG&A growth assumptions which are generally based on historical trends. The discount rate used is a “market participant” weighted average cost of capital (“WACC”). For our computation of fair value as of January 1, 2014, we used a WACC rate of 12.5%, and estimated terminal growth rate at 4.0% and working capital requirements at 7.5% of revenues. There were no changes in the carrying amounts of goodwill during each of the years ended December 31, 2014 and 2013. The carrying amount of goodwill for the periods presented is detailed below:
		SMB			Large Account		Public Sector			Total
	Goodwill, gross	$	1,173		$	51,276	$	7,634		$	60,083
	Accumulated impairment losses		(1,173	)		—		(7,634	)		(8,807	)
	Net balance	$	—		$	51,276	$	—		$	51,276
	Intangible Assets
	Our intangible assets, which are amortized in proportion to the estimates of the future cash flows underlying the valuation of the assets, and the related accumulated amortization, are detailed below:
					December 31, 2014								December 31, 2013
		Estimated			Gross		Accumulated			Net			Gross		Accumulated		Net
		Useful Lives			Amount		Amortization			Amount			Amount		Amortization		Amount
	Customer List		8		$	3,400	$	2,037		$	1,363		$	3,400	$	1,514	$	1,886
	Tradename		5			1,190		635			555			1,190		397		793
	License Agreements		5			800		765			35			800		625		175
	Total Intangible Assets				$	5,390	$	3,437		$	1,953		$	5,390	$	2,536	$	2,854
	In 2014, 2013, and 2012, we recorded amortization expense of $901, $903, and $1,448, respectively. The estimated amortization expense relating to intangible assets in each of the five succeeding years is as follows:
	For the Years Ending December 31,
	2015	$	735
	2016		599
	2017		362
	2018		221
	2019		36
		$	1,953

Accounts_Receivable

Accounts Receivable	12 Months Ended
	Dec. 31, 2014
Accounts Receivable	3. ACCOUNTS RECEIVABLE
	Accounts receivable consisted of the following:
		December 31,
		2014			2013
	Trade	$	276,593		$	266,330
	Vendor returns, consideration, and other		21,597			21,872
	Due from employees		183			163
	Due from affiliates		12			11
	Total Gross Accounts Receivable		298,385			288,376
	Allowances for:
	Sales returns		(3,223	)		(3,060	)
	Doubtful accounts		(2,135	)		(2,265	)
	Accounts Receivable, net	$	293,027		$	283,051

Property_and_Equipment

Property and Equipment	12 Months Ended
	Dec. 31, 2014
Property and Equipment	4. PROPERTY AND EQUIPMENT
	Property and equipment consisted of the following:
		December 31,
		2014			2013
	Computer software, including licenses and internally-developed software	$	63,721		$	58,257
	Furniture and equipment		25,886			25,698
	Leasehold improvements		7,611			7,534
	Facilities and equipment under capital lease with affiliate		—			7,215
	Total		97,218			98,704
	Accumulated depreciation and amortization		(69,357	)		(71,104	)
	Property and equipment, net	$	27,861		$	27,600
	We recorded depreciation and amortization expense for property and equipment, including capital lease amortization, of $7,191, $6,186, and $5,447 in 2014, 2013, and 2012, respectively.
	Our capital lease agreement expired at December 31, 2013.

Bank_Borrowings

Bank Borrowings	12 Months Ended
	Dec. 31, 2014
Bank Borrowings	5. BANK BORROWINGS
	We have a $50,000 credit facility collateralized by our receivables that expires February 24, 2017. This facility can be increased, at our option, to $80,000 for approved acquisitions or other uses authorized by the lender at substantially the same terms. Amounts outstanding under this facility bear interest at the one-month London Interbank Offered Rate (“LIBOR”), plus a spread based on our funded debt ratio, or in the absence of LIBOR, the prime rate (3.25% at December 31, 2014). The one-month LIBOR rate at December 31, 2014 was 0.17%. The credit facility includes various customary financial ratios and operating covenants, including minimum net worth and maximum funded debt ratio requirements, and default acceleration provisions. Funded debt ratio is the ratio of average outstanding advances under the credit facility to Adjusted EBITDA (Earnings Before Interest Expense, Taxes, Depreciation, Amortization, and Special Charges). The maximum allowable funded debt ratio under the agreement is 2.0 to 1.0. Decreases in our consolidated Adjusted EBITDA could limit our potential borrowings under the credit facility. We had no outstanding bank borrowings in 2014 or 2013, and accordingly, the entire $50,000 facility was available for borrowings under the credit facility.
	Certain information with respect to short-term borrowings was as follows:
	Year ended December 31,	Weighted			Maximum		Average
		Average			Amount		Amount
		Interest  Rate			Outstanding		Outstanding
	2012		0.8	%	$	6,707	$	19

Trade_Credit_Agreements

Trade Credit Agreements	12 Months Ended
	Dec. 31, 2014
Trade Credit Agreements	6. TRADE CREDIT AGREEMENTS
	At December 31, 2014 and 2013, we had security agreements with two financial institutions to facilitate the purchase of inventory from various suppliers under certain terms and conditions. The agreements allow a collateralized first position in certain branded products in our inventory financed by the financial institutions up to an aggregated amount of $57,000. The cost of such financing under these agreements is borne by the suppliers by discounting their invoices to the financial institutions. We do not pay any interest or discount fees on such inventory. At December 31, 2014 and December 31, 2013, accounts payable included $17,638 and $15,543, respectively, owed to these financial institutions.

Stockholders_Equity_and_ShareB

Stockholders' Equity and Share-Based Compensation	12 Months Ended
	Dec. 31, 2014
Stockholders' Equity and Share-Based Compensation	7. STOCKHOLDERS’ EQUITY AND SHARE-BASED COMPENSATION
	Preferred Stock
	Our Amended and Restated Certificate of Incorporation (the “Restated Certificate”) authorizes the issuance of up to 10,000 shares of preferred stock, $.01 par value per share (the “Preferred Stock”). Under the terms of the Restated Certificate, the Board is authorized, subject to any limitations prescribed by law, without stockholder approval, to issue by a unanimous vote such shares of Preferred Stock in one or more series. Each such series of Preferred Stock shall have such rights, preferences, privileges, and restrictions, including voting rights, dividend rights, redemption privileges, and liquidation preferences, as shall be determined by the Board. There were no preferred shares outstanding at December 31, 2014 or 2013.
	Share Repurchase Authorization
	On March 28, 2001, our Board of Directors authorized the spending of up to $15,000 to repurchase our common stock. We consider block repurchases directly from larger stockholders, as well as open market purchases, in carrying out our ongoing stock repurchase program.
	We repurchased 762 shares for $7,813 in 2012 but did not repurchase any shares in 2013 or 2014. Our 2012 repurchases included the purchase of 600 shares from two principal stockholders at an average price of $10.58 per share. This share purchase agreement was approved by our Board of Directors and was considered a separate transaction from our 2001 Board authorized program. As of December 31, 2014, we have repurchased an aggregate of 1,682 shares for $12,233 under our repurchase program, and the maximum approximate dollar value of shares that may yet be purchased under this program is $2,767. In 2013 and 2012, we issued nonvested shares from treasury stock and reflected, upon the vesting of such shares, the net remaining balance of treasury stock on the consolidated balance sheet. In addition, we withheld shares upon the vesting of nonvested stock to satisfy related employee tax obligations. Such transactions were recognized as a repurchase of common stock and returned to treasury but did not apply against authorized repurchase limits under our Board of Directors’ authorization.
	On February 11, 2014, our Board of Directors approved a new share repurchase program authorizing up to $15,000 in share repurchases. There is no fixed termination date for this new repurchase program. Purchases may be made in open-market transactions, block transactions on or off an exchange, or in privately negotiated transactions. We intend to complete the 2001 repurchase program before repurchasing shares under the new program. The timing and amount of any share repurchases will be based on market conditions and other factors.
	Dividend Payments
	The following table summarizes our special cash dividend payments in the three years ended December 31, 2014:
		2014			2013			2012
	Dividend per share	$	0.4		$	0.4		$	0.38
	Shareholder record date		12/1/14			12/12/13			11/28/12
	Total payment	$	10,527		$	10,475		$	10,074
	We have no current plans to pay additional cash dividends on our common stock in the foreseeable future, and declaration of any future cash dividends will depend upon our financial position, strategic plans, and general business conditions.
	Equity Compensation Plan Descriptions
	In November 1997, the Board adopted and our stockholders approved the 1997 Stock Incentive Plan (the “1997 Plan”). Under the terms of the 1997 Plan, we were authorized, for a ten-year period, to grant stock options, nonvested stock, and other stock-based awards. The 1997 Plan expired in November 2007. Under such plan, options to purchase 155 shares remain outstanding as of December 31, 2014.
	In 2007, the Board adopted and our stockholders approved the 2007 Stock Incentive Plan (the “2007 Plan”). In May 2014, our shareholders approved an amendment to the 2007 Plan that authorized the issuance of 1,600 shares of common stock under the 2007 Plan. Under the terms of the 2007 Plan, we are authorized, for a ten-year period to grant options, stock appreciation rights, nonvested stock, nonvested stock units, and other stock-based awards to employees, officers, directors, and consultants. As of December 31, 2014, there were 155 shares eligible for future grants under the 2007 Plan.
	1997 Employee Stock Purchase Plan
	In November 1997, the Board adopted and our stockholders approved the 1997 Employee Stock Purchase Plan (the “Purchase Plan”). The Purchase Plan authorizes the issuance of common stock to participating employees. Under the Purchase Plan, as amended, our employees are eligible to purchase company stock at 95% of the purchase price as of the last business day of each six-month offering period. An aggregate of 1,038 shares of common stock has been reserved for issuance under the Purchase Plan, of which 989 shares have been purchased.
	Accounting for Share-Based Compensation
	We measure the grant date fair value of equity awards given to employees and recognize that cost, adjusted for forfeitures, over the period that services are performed. We value grants with multiple vesting periods as a single award, estimate expected forfeitures based upon historical patterns of employee turnover, and record share-based compensation as a component of SG&A expenses or special charges. In 2014, 2013, and 2012, we granted nonvested stock units, and in previous years granted nonvested stock awards and stock options.
	We employ the Black-Scholes option valuation model to assess the grant date fair value of each option grant. The application of this model requires certain key input assumptions, including expected volatility, option term, and risk-free interest rates. Expected volatility is based on the historical volatility of our common stock. The expected term of an option grant is estimated using the historical exercise behavior of employees and directors. The risk-free interest rate for periods within the contractual life of the option is based on the U.S. Treasury yield curve that corresponds most closely to the stock option’s expected average life.
	The following table summarizes the components of share-based compensation recorded as expense for the three years ended December 31, 2014:
		2014			2013			2012
	Nonvested shares/units	$	946		$	864		$	1,333
	Stock options		(17	)		94			161
	Pre-tax compensation expense		929			958			1,494
	Tax benefit		(355	)		(329	)		(517	)
	Net effect on net income	$	574		$	629		$	977
	We have historically settled stock option exercises with newly issued common shares. The intrinsic value of options exercised in 2014, 2013, and 2012 was $732, $1,610, and $374, respectively. The following table sets forth our stock option activity for the year ended December 31, 2014:
		Options			Weighted			Weighted			Aggregate
					Average			Average			Intrinsic
					Exercise Price			Remaining			Value
								Contractual
								Term (Years)
	Outstanding, January 1, 2014		259		$	10.36
	Exercised		(49	)		7.23
	Forfeited		—			—
	Expired		—			—
	Outstanding, December 31, 2014		210		$	11.1			3.21		$	2,822
	Vested and expected to vest		210		$	11.1			3.21		$	2,822
	Exercisable, December 31, 2014		210		$	11.1			3.21		$	2,822
	In 2014, 2013 and 2012, we issued nonvested stock units that settle in stock and vest over periods up to eleven years. Recipients of nonvested stock units do not possess stockholder rights. The fair value of nonvested stock units is based on the end of day market value of our common stock on the grant date. The following table summarizes our nonvested stock unit activity in 2014:
		Nonvested Stock Units
		Shares			Weighted-Average
					Grant Date
					Fair Value
	Nonvested at January 1, 2014		475		$	12.7
	Awarded		98			22.5
	Vested		(86	)		9.35
	Nonvested at December 31, 2014		487			15.26
	The weighted-average grant-date fair value of nonvested stock units granted in 2013 and 2012 was $21.51 and $9.84, respectively. The total fair value of nonvested stock units that vested in 2014 and 2013 was $1,854 and $768, respectively; no units vested in 2012. Unearned compensation cost related to the nonvested portion of outstanding nonvested stock units was $6,079 as of December 31, 2014, and is expected to be recognized over a weighted-average period of approximately 7.3 years.
	Stock Equivalent Units
	We have also issued stock equivalent units, (“SEUs”), which settle in cash and vest ratably over four years. The fair value of these liability awards is based on the closing market price of our common stock, and is remeasured at the end of each reporting period until the SEUs vest. We report the compensation as a component of SG&A expense and the related liability as accrued payroll on the consolidated balance sheet.
		2014			2013			2012
	Units issued		99			40			179
	Compensation expense	$	1,428		$	1,159		$	349

Income_Taxes

Income Taxes	12 Months Ended
	Dec. 31, 2014
Income Taxes	8. INCOME TAXES
	The provision for income taxes consisted of the following:
		Years Ended December 31,
		2014			2013			2012
	Current:
	Federal	$	22,612		$	15,494		$	17,728
	State		4,863			3,493			3,034
	Total current		27,475			18,987			20,762
	Deferred:
	Federal		991			4,160			344
	State		221			418			330
	Total deferred		1,212			4,578			674
	Net provision	$	28,687		$	23,565		$	21,436
	The components of the deferred taxes at December 31, 2014 and 2013 are as follows:
		2014			2013
	Deferred tax assets:
	Provisions for doubtful accounts	$	843		$	891
	Inventory costs capitalized for tax purposes		186			166
	Inventory valuation reserves		503			558
	Sales return reserves		163			155
	Deductible expenses, primarily employee-benefit related		637			615
	Accrued compensation		3,120			1,764
	State tax contingency		298			248
	Other		2,024			2,076
	Compensation under non-statutory stock option agreements		691			669
	State tax loss carryforwards		579			622
	Federal benefit for uncertain state tax positions		649			692
	Total gross deferred tax assets		9,693			8,456
	Less: Valuation allowance		(313	)		(249	)
	Net deferred tax assets		9,380			8,207
	Deferred tax liabilities:
	Goodwill and other intangibles		(14,379	)		(12,926	)
	Property and equipment		(6,055	)		(5,123	)
	Total gross deferred tax liabilities		(20,434	)		(18,049	)
	Net deferred tax liability	$	(11,054	)	$	(9,842	)
	Current deferred tax assets	$	7,749		$	6,382
	Noncurrent deferred tax liability		(18,803	)		(16,224	)
	Net deferred tax liability	$	(11,054	)	$	(9,842	)
	We have state net operating loss carryforwards aggregating $891 at December 31, 2014 representing state tax benefits, net of federal taxes, of approximately $579. These loss carryforwards are subject to between five, fifteen, and twenty-year carryforward periods, with $8 expiring after 2016, $6 expiring after 2017, $2 expiring after 2018 and $875 expiring beyond 2019. We have provided valuation allowances of $313 and $249 at December 31, 2014 and 2013 respectively, against the state tax loss carryforwards, representing the portion of carryforward losses that we believe are not likely to be realized. The net change in the total valuation allowance reflects a $64 increase in 2014, and a $42 and $237 decrease in 2013 and 2012, respectively. The valuation allowance was increased in the current year to offset the corresponding increase to the deferred tax asset associated with state net operating loss carryforwards and was reduced in 2013 and 2012 respectively for the utilization and expiration of state net operating loss carryforwards.
	A reconciliation of our 2014, 2013, and 2012 income tax provision to total income taxes at the statutory federal tax rate is as follows:
		2014			2013			2012
	Federal income taxes, at statutory tax rate	$	24,979		$	20,736		$	19,077
	State income taxes, net of federal benefit		3,459			2,467			2,232
	Nondeductible expenses		503			420			277
	Other—net		(254	)		(58	)		(150	)
	Tax provision	$	28,687		$	23,565		$	21,436
	We file one consolidated U.S. Federal income tax return that includes all of our subsidiaries as well as several consolidated, combined, and separate company returns in many U.S. state tax jurisdictions. The tax years 2010-2013 remain open to examination by the major state taxing jurisdictions in which we file. The tax years 2011-2013 remain open to examination by the Internal Revenue Service.
	A reconciliation of unrecognized tax benefits for 2014, 2013, and 2012, is as follows:
		2014			2013			2012
	Balance at January 1,	$	1,008		$	1,084		$	1,535
	Lapses of applicable statute of limitations		(116	)		(76	)		(451	)
	Balance at December 31,	$	892		$	1,008		$	1,084
	We recognize interest and penalties related to unrecognized income tax benefits as a component of income tax expense, and the corresponding accrual is included as a component of our liability for unrecognized income tax benefits. During the years ended December 31, 2014, 2013, and 2012, we recognized interest and penalties totaling $80, $81, and $93, respectively. At December 31, 2014 and 2013, accrued interest aggregated $966 and $967, respectively, and accrued penalties aggregated $224 and $254, respectively. As of December 31, 2014 and 2013, all unrecognized tax benefits and the related interest and penalties, if recognized, would favorably affect our effective tax rate.
	We do not anticipate that total unrecognized tax benefits will change significantly due to the settlement of audits, expiration of statutes of limitations, or other reasons in the next twelve months.

Employee_Benefit_Plan

Employee Benefit Plan	12 Months Ended
	Dec. 31, 2014
Employee Benefit Plan	9. EMPLOYEE BENEFIT PLAN
	We have a contributory profit-sharing and employee savings plan covering all qualified employees. No contributions to the profit-sharing element of the plan were made by us in 2014, 2013, or 2012. We made matching contributions to the employee savings element of such plan of $1,873, $1,768, and $1,568 in 2014, 2013, and 2012, respectively.

Commitments_And_Contingencies

Commitments And Contingencies	12 Months Ended
	Dec. 31, 2014
Commitments And Contingencies	10. COMMITMENTS AND CONTINGENCIES
	Operating Leases
	We lease our corporate headquarters and an adjacent office facility from an entity controlled by our principal stockholders. The operating lease for our corporate headquarters was renewed May 8, 2014 and has a five-year term effective December 1, 2013 with an option to renew for an additional five-year term. The operating lease for the adjacent facility commenced in August 2008 and has a ten-year term with the option to renew for two additional two-year terms. We also lease several other buildings from our principal stockholders on a month-to-month basis. We believe that the above operating lease transactions were consummated on terms comparable to terms we could have obtained with unrelated third parties.
	We entered into a ten-year lease for a new distribution center in Wilmington, Ohio on August 27, 2014. The facility is located in the same office park as our current distribution center in Wilmington, Ohio. Lease payments commence on September 1, 2015. In addition, we lease office from unrelated parties with remaining terms of one to ten years.
	Future aggregate minimum annual lease payments under these leases at December 31, 2014 are as follows:
	Year Ending December 31	Related Parties		Others		Total
	2015	$	1,497	$	2,079	$	3,576
	2016		1,497		1,386		2,883
	2017		1,497		1,055		2,552
	2018		1,393		776		2,169
	2019		—		764		764
	2020 and thereafter		—		4,582		4,582
	Total rent expense aggregated $4,322, $3,282, and $3,318 for the years ended December 31, 2014, 2013, and 2012, respectively, under the terms of the operating leases described above. Such amounts included $1,639, $372, and $464 in 2014, 2013, and 2012, respectively, paid to related parties.
	Contingencies
	We are subject to various legal proceedings and claims, including patent infringement claims, which have arisen during the ordinary course of business. In the opinion of management, the outcome of such matters is not expected to have a material effect on our financial position, results of operations, and cash flows.
	We have received direct claims of infringement of patents owned by third parties. Many of these underlying claims have not yet been resolved, and the extent, if any, of the Company’s indemnification obligations have not been determined. Certain of these matters include speculative claims for substantial or indeterminate amounts of damages. In addition, some of the patents at issue are the subject of pending legal proceedings between the patent owners and one or more leading digital commerce companies, and the outcome of those proceedings could affect the extent to which the patent owners seek to prosecute claims against us or our customers. Our business could be materially adversely affected by any significant disputes between us and our customers as to intellectual property litigation to which we may become a party. Adverse results in these matters may include awards of substantial monetary damages, costly licensing agreements, or orders preventing us from offering certain features, functionalities, products, or services, and may also cause us to change our business practices, and require development of non-infringing products or technologies, which could result in a loss of revenues and otherwise harm our business. As of December 31, 2014 and 2013, the Company has not made an accrual related to these matters.
	We record a liability when we believe that a loss is both probable and reasonably estimable. On a quarterly basis, we review each of these legal proceedings to determine whether it is probable, reasonably possible or remote that a liability has been incurred and, if it is at least reasonably possible, whether a range of loss can be reasonably estimated. Significant judgment is required to determine both the likelihood of there being a loss and the estimated amount of such loss. Until the final resolution of such matters, there may be an exposure to loss in excess of the amount recorded, and such amounts could be material. We expense legal fees in the period in which they are incurred.
	We are subject to audits by states on sales and income taxes, unclaimed property, employment matters, and other assessments. A comprehensive multi-state unclaimed property audit continues to be in progress, and total accruals for unclaimed property aggregated $1,850 and $1,792 at December 31, 2014 and 2013, respectively. While management believes that known and estimated unclaimed property liabilities have been adequately provided for, it is too early to determine the ultimate outcome of such audits, as formal assessments have not been finalized. Additional liabilities for this or other audits could be assessed, and such outcomes could have a material negative impact on our financial position, results of operations, and cash flows.

Other_RelatedParty_Transaction

Other Related-Party Transactions	12 Months Ended
	Dec. 31, 2014
Other Related-Party Transactions	11. OTHER RELATED-PARTY TRANSACTIONS
	As described in Note 10, we lease certain facilities from related parties. Other related-party transactions include the transactions summarized below. Related parties consist primarily of affiliated companies related to us through common ownership.
		2014		2013		2012
	Revenue:
	Sales of services to affiliated companies	$	118	$	115	$	100

Segment_and_Related_Disclosure

Segment and Related Disclosures	12 Months Ended
	Dec. 31, 2014
Segment and Related Disclosures	12. SEGMENT AND RELATED DISCLOSURES
	The internal reporting structure used by our chief operating decision maker (“CODM”) to assess performance and allocate resources determines the basis for our reportable operating segments. Our CODM is our Chairman of the Board of Directors, and she evaluates operations and allocates resources based on a measure of operating income.
	Our operations are organized under three reporting segments—the SMB segment, which serves primarily small- and medium-sized businesses; the Large Account segment, which serves primarily medium-to-large corporations; and the Public Sector segment, which serves primarily federal, state, and local government and educational institutions. In addition, the Headquarters/Other group provides services in areas such as finance, human resources, information technology, marketing, and product management. Most of the operating costs associated with the Headquarters/Other group functions are charged to the operating segments based on their estimated usage of the underlying functions. We report these charges to the operating segments as “Allocations.” Certain headquarters costs relating to executive oversight and other fiduciary functions that are not allocated to the operating segments are included under the heading of Headquarters/Other in the tables below.
	Net sales presented below exclude inter-segment product revenues. Segment information applicable to our reportable operating segments for the years ended December 31, 2014, 2013, and 2012 is shown below:
		Years ended December 31,
		2014			2013			2012
	Net sales:
	SMB	$	1,037,620		$	952,785		$	902,642
	Large Account		850,796			793,686			773,352
	Public Sector		574,923			475,167			482,879
	Total net sales	$	2,463,339		$	2,221,638			2,158,873
	Operating income (loss):
	SMB	$	39,608		$	31,635		$	31,730
	Large Account		39,229			31,667			32,764
	Public Sector		3,621			3,415			8,316
	Headquarters/Other		(11,004	)		(7,321	)		(18,178	)
	Total operating income		71,454			59,396			54,632
	Interest expense		(86	)		(149	)		(166	)
	Other, net		—			—			41
	Income before taxes	$	71,368		$	59,247		$	54,507
	Selected operating expense:
	Depreciation and amortization:
	SMB	$	5		$	5		$	9
	Large Account		1,368			2,079			2,156
	Public Sector		124			174			165
	Headquarters/Other		6,595			4,831			4,565
	Total depreciation and amortization	$	8,092		$	7,089		$	6,895
	Special charges (Headquarters/Other)	$	—		$	—		$	1,135
	Total assets:
	SMB	$	186,534		$	165,620		$	146,633
	Large Account		250,470			243,940			221,171
	Public Sector		63,239			57,961			63,210
	Headquarters/Other		39,717			33,423			37,309
	Total assets	$	539,960		$	500,944		$	468,323
	The assets of our operating segments presented above consist primarily of accounts receivable, intercompany receivable, goodwill, and other intangibles. Goodwill of $51,276 is held by our Large Account segment for the years ended December 31, 2014 and 2013. Assets reported under the Headquarters/Other group are managed by corporate headquarters, including cash, inventory, and property and equipment. Total assets for the Headquarters/Other group are presented net of intercompany balances eliminations of $29,605 and $30,481 for the years ended December 31, 2014 and 2013, respectively. Our capital expenditures consist largely of IT hardware and software purchased to maintain or upgrade our management information systems. These systems serve all of our subsidiaries, to varying degrees, and as a result, our CODM does not evaluate capital expenditures on a segment basis.
	Substantially, all of our sales in 2014, 2013, and 2012 were made to customers located in the United States. Shipments to customers located in foreign countries were not more than 2% of total net sales in 2014, 2013, and 2012. All of our assets at December 31, 2014 and 2013 were located in the United States. Our primary target customers are SMBs, federal, state, and local government agencies, educational institutions, and medium-to-large corporate accounts. No single customer accounted for more than 2% of total net sales in 2014, 2013, or 2012. While no single agency of the federal government comprised more than 2% of total sales, aggregate sales to the federal government were 6.5%, 6.4%, and 8.4% in 2014, 2013, and 2012, respectively.

Quarterly_Financial_Results_Un

Quarterly Financial Results (Unaudited)	12 Months Ended
	Dec. 31, 2014
Quarterly Financial Results (Unaudited)	13. QUARTERLY FINANCIAL RESULTS (UNAUDITED)
	The following table sets forth certain unaudited quarterly data of the Company for each of the calendar quarters in 2014 and 2013. This information has been prepared on the same basis as the annual financial statements, and all necessary adjustments, consisting only of normal recurring adjustments, have been included in the amounts stated below to present fairly the selected quarterly information when read in conjunction with the annual financial statements and the notes thereto included elsewhere in this document. The quarterly operating results are not necessarily indicative of future results of operations.
		Quarters Ended
		March 31,			June 30,			September 30,			December 31,
		2014			2014			2014			2014
	Net sales	$	559,760		$	633,244		$	639,570		$	630,765
	Cost of sales		486,913			549,478			555,918			547,641
	Gross profit		72,847			83,766			83,652			83,124
	Selling, general and administrative expenses		61,101			64,564			63,235			63,035
	Income from operations		11,746			19,202			20,417			20,089
	Interest expense		(10	)		(26	)		(36	)		(14	)
	Income before taxes		11,736			19,176			20,381			20,075
	Income tax provision		(4,605	)		(7,747	)		(8,204	)		(8,131	)
	Net income	$	7,131		$	11,429		$	12,177		$	11,944
	Earnings per common share:
	Basic	$	0.27		$	0.44		$	0.46		$	0.45
	Diluted	$	0.27		$	0.43		$	0.46		$	0.45
	Weighted average common shares outstanding:
	Basic		26,202			26,206			26,266			26,311
	Diluted		26,485			26,487			26,524			26,554
		Quarters Ended
		March 31,			June 30,			September 30,			December 31,
		2013			2013			2013			2013
	Net sales	$	505,423		$	557,287		$	580,356		$	578,572
	Cost of sales		438,585			483,371			503,803			502,879
	Gross profit		66,838			73,916			76,553			75,693
	Selling, general and administrative expenses		56,713			58,533			59,043			59,315
	Income from operations		10,125			15,383			17,510			16,378
	Interest expense		(53	)		(46	)		(39	)		(11	)
	Other, net		3			—			—			(3	)
	Income before taxes		10,075			15,337			17,471			16,364
	Income tax provision		(3,977	)		(6,183	)		(6,882	)		(6,523	)
	Net income	$	6,098		$	9,154		$	10,589		$	9,841
	Earnings per common share:
	Basic	$	0.23		$	0.35		$	0.4		$	0.38
	Diluted	$	0.23		$	0.35		$	0.4		$	0.37
	Weighted average common shares outstanding:
	Basic		25,998			26,127			26,169			26,181
	Diluted		26,272			26,379			26,399			26,453

Schedule_IIValuation_And_Quali

Schedule II-Valuation And Qualifying Accounts	12 Months Ended
	Dec. 31, 2014
Schedule II-Valuation And Qualifying Accounts	PC CONNECTION, INC. AND SUBSIDIARIES
	SCHEDULE II—VALUATION AND QUALIFYING ACCOUNTS
	(amounts in thousands)
		Balance at		Charged to		Deductions/			Balance at
		Beginning		Costs and		Write-Offs			End of
		of Period		Expenses					Period
	Description
	Allowance for Sales Returns
	Year Ended December 31, 2012		2,432		31,316		(31,333	)		2,415
	Year Ended December 31, 2013		2,415		31,843		(31,198	)		3,060
	Year Ended December 31, 2014		3,060		32,882		(32,719	)		3,223
	Allowance for Doubtful Accounts
	Year Ended December 31, 2012		3,294		1,561		(2,341	)		2,514
	Year Ended December 31, 2013		2,514		1,078		(1,327	)		2,265
	Year Ended December 31, 2014		2,265		1,383		(1,513	)		2,135

Summary_of_Significant_Account1

Summary of Significant Accounting Policies (Policies)	12 Months Ended
	Dec. 31, 2014
Principles of Consolidation	Principles of Consolidation
	The consolidated financial statements include the accounts of PC Connection, Inc. and its subsidiaries, all of which are wholly-owned. Intercompany transactions and balances are eliminated in consolidation.
Use of Estimates in the Preparation of Financial Statements	Use of Estimates in the Preparation of Financial Statements
	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. These estimates and assumptions affect the reported amounts and disclosures of assets and liabilities and the reported amounts and disclosures of revenue and expenses during the period. By nature, estimates are subject to an inherent degree of uncertainty. Actual results could differ from those estimates and assumptions.
Revenue Recognition	Revenue Recognition
	Revenue on product sales is recognized at the point in time when persuasive evidence of an arrangement exists, the price is fixed or determinable, delivery has occurred, and there is a reasonable assurance of collection of the sales proceeds. We generally obtain oral or written purchase authorizations from our customers for a specified amount of product at a specified price. Because we either (i) have a general practice of covering customer losses while products are in-transit despite title transferring at the point of shipment or (ii) have FOB–destination shipping terms specifically set out in our arrangements with federal agencies and certain commercial customers, delivery is deemed to have occurred at the point in time when the product is received by the customer.
	We provide our customers with a limited thirty-day right of return generally limited to defective merchandise. Revenue is recognized at delivery and a reserve for sales returns is recorded. We make reasonable and reliable estimates of product returns based on significant historical experience and record our sales reserves as a reduction of revenues and either as offsets to accounts receivable or, for customers who have already paid, as offsets to accrued expenses. At December 31, 2014, we recorded sales reserves of $3,223 and $205 as components of accounts receivable and accrued expenses, respectively. At December 31, 2013, we recorded sales reserves of $3,060 and $208 as components of accounts receivable and accrued expenses, respectively.
	All amounts billed to a customer in a sales transaction related to shipping and handling, if any, represent revenues earned for the goods provided, and these amounts have been classified as “net sales.” Costs related to such shipping and handling billings are classified as “cost of sales.” Sales are reported net of sales, use, or other transaction taxes that are collected from customers and remitted to taxing authorities.
	We use our own engineering personnel in projects involving the design and installation of systems and networks, and we also engage third-party service providers to perform warranty maintenance, implementations, asset disposals, and other services. This service revenue represents a small percentage of our consolidated revenue. We evaluate such engagements to determine whether we or the third party assumes the general risk and reward of ownership in these transactions. For those transactions in which we do not assume the risk and reward but instead act as an agent, we recognize the transaction revenue on a net basis. Under net sales recognition, the cost of the third party is recorded as a reduction to the selling price, resulting in net sales being equal to the gross profit on the transaction. In those engagements in which we are the principal and primary obligor, we report the sale on a gross basis, and the cost of the service provider is recognized in cost of goods sold.
	Similarly, we recognize revenue from agency sales transactions on a net sales basis. In agency sales transactions, we facilitate product sales by equipment and software manufacturers directly to our customers and receive agency, or referral, fees for such transactions. We do not take title to the products or assume any maintenance or return obligations in these transactions; title is passed directly from the supplier to our customer.
	Amounts recognized on a net basis included in net sales for such third-party services and agency sales transactions were $25,696, $20,570, and $18,870 for the years ended December 31, 2014, 2013, and 2012, respectively.
	In certain revenue arrangements, our contracts require that we provide multiple units of hardware, software, or services deliverables. Under these multiple-element arrangements, each service performed and product delivered is considered a separate deliverable and qualifies as a separate unit of accounting. For material multiple element arrangements, we allocate revenue based on vendor-specific objective evidence of fair value of the underlying services and products. If we were to enter into a multiple element arrangement in which vendor-specific objective evidence was not available, we would utilize third-party evidence to allocate the selling price. If neither vendor-specific objective evidence nor third-party evidence was available, we would estimate the selling price based on market price and company specific factors.
Cost of Sales and Certain Other Costs	Cost of Sales and Certain Other Costs
	Cost of sales includes the invoice cost of the product, direct employee and third party cost of services, direct costs of packaging, inbound and outbound freight, and provisions for inventory obsolescence, adjusted for discounts, rebates, and other vendor allowances. Direct operating expenses relating to our purchasing function and receiving, inspection, warehousing, packing and shipping, and other expenses of our distribution center are included in our SG&A expenses. Accordingly, our gross margin may not be comparable to those of other entities who include all of the costs related to their distribution network in cost of goods sold. Such distribution costs included in our SG&A expenses are as follows:
	Years Ended December 31,
	2014	2013		2012
	$13,934	$	13,843	$	13,878
Cash and Cash Equivalents	Cash and Cash Equivalents
	We consider all highly liquid short-term investments with original maturities of 90 days or less to be cash equivalents. The carrying value of our cash equivalents approximates fair value. The majority of payments due from credit card processors and banks for third-party credit card and debit card transactions process within one to five business days. All credit card and debit card transactions that process in less than seven days are classified as cash and cash equivalents. Amounts due from banks for credit card transactions classified as cash equivalents totaled $3,863 and $5,115 at December 31, 2014 and 2013, respectively.
Accounts Receivable	Accounts Receivable
	We perform ongoing credit evaluations of our customers and adjust credit limits based on payment history and customer creditworthiness. We maintain an allowance for estimated doubtful accounts based on our historical experience and the customer credit issues identified. Our customers do not post collateral for open accounts receivable. We monitor collections regularly and adjust the allowance for doubtful accounts as necessary to recognize any changes in credit exposure. Trade receivables are charged off in the period in which they are deemed uncollectible. Recoveries of trade receivables previously charged are recorded when received.
Inventories	Inventories
	Inventories (all finished goods) consisting of software packages, computer systems, and peripheral equipment, are stated at cost (determined under a weighted-average cost method which approximates the first-in, first-out method) or market, whichever is lower. Inventory quantities on hand are reviewed regularly, and allowances are maintained for obsolete, slow moving, and nonsalable inventory.
Vendor Allowances	Vendor Allowances
	We receive allowances from merchandise vendors for price protections, discounts, product rebates, and other programs. These allowances are treated as a reduction of the vendor’s prices and are recorded as adjustments to cost of sales or inventory, as applicable. Allowances for product rebates that require certain volumes of product sales or purchases are recorded as the related milestones are probable of being met.
Advertising Costs and Allowances	Advertising Costs and Allowances
	Costs of producing and distributing catalogs are charged to expense in the period in which the catalogs are first circulated. Other advertising costs are expensed as incurred.
	Vendors have the ability to place advertisements in our catalogs or fund other advertising activities for which we receive advertising allowances. These vendor allowances, to the extent that they represent specific reimbursements of incremental and identifiable costs, are offset against SG&A expenses. Advertising allowances that cannot be associated with a specific program funded by an individual vendor or that exceed the fair value of advertising expense associated with that program are classified as offsets to cost of sales or inventory. Our vendor partners generally consolidate their funding of advertising and other marketing programs, and accordingly, we classify substantially all vendor consideration as a reduction of cost of sales or inventory rather than a reduction of advertising expense. Advertising expense, which is classified as a component of SG&A expenses, totaled $15,767, $18,019, and $20,029, for the years ended December 31, 2014, 2013, and 2012, respectively.
Property and Equipment	Property and Equipment
	Property and equipment are stated at cost, net of accumulated depreciation and amortization. Depreciation and amortization is provided for financial reporting purposes over the estimated useful lives of the assets ranging from three to seven years. Computer software, including licenses and internally developed software, is capitalized and amortized over lives ranging from three to seven years. Depreciation is recorded using the straight-line method. Leasehold improvements and facilities under capital leases are amortized over the terms of the related leases or their useful lives, whichever is shorter, whereas for income tax reporting purposes, they are amortized over the applicable tax lives.
	Costs incurred to develop internal-use software during the application development stage are recorded in property and equipment at cost. External direct costs of materials and services consumed in developing or obtaining internal-use computer software and payroll-related costs for employees developing internal-use computer software projects, to the extent of their time spent directly on the project and specific to application development, are capitalized.
	When events or circumstances indicate a potential impairment, we evaluate the carrying value of property and equipment based upon current and anticipated undiscounted cash flows. We recognize impairment when it is probable that such estimated future cash flows will be less than the asset carrying value.
Goodwill and Other Intangible Assets	Goodwill and Other Intangible Assets
	Our intangible assets consist of goodwill, which is not subject to amortization, and amortizing intangibles, which consist of customer lists, trade names, and certain technology licensing agreements, which are being amortized over their useful lives.
	Note 2 describes the annual impairment methodology that we employ on January 1st of each year in calculating the recoverability of goodwill. This same impairment test is performed at other times during the course of a year should an event occur or circumstance change that would more likely than not reduce the fair value of a reporting unit below its carrying amount.
	Recoverability of amortizing intangible assets is assessed only when events have occurred that may give rise to impairment. When a potential impairment has been identified, forecasted undiscounted net cash flows of the operations to which the asset relates are compared to the current carrying value of the long-lived assets present in that operation. If such cash flows are less than such carrying amounts, long-lived assets including such intangibles, are written down to their respective fair values.
Concentrations	Concentrations
	Concentrations of credit risk with respect to trade account receivables are limited due to the large number of customers comprising our customer base. No single customer accounted for more than 2% of total net sales in 2014, 2013, and 2012. While no single agency of the federal government comprised more than 2% of total sales, aggregate sales to the federal government as a percentage of total net sales were 6.5%, 6.4%, and 8.4% in 2014, 2013, and 2012, respectively.
	Product purchases from Ingram Micro, Inc. (“Ingram”), our largest supplier, accounted for approximately 25%, 24%, and 26% of our total product purchases in 2014, 2013, and 2012, respectively. Purchases from Synnex Corporation (“Synnex”) comprised 13%, 12%, and 14% of our total product purchases in 2014, 2013, and 2012, respectively. Purchases from Tech Data Corporation (“Tech Data”) comprised 8% of our total product purchases in 2014 and 10% in 2013 and 2012, respectively. No other vendor supplied more than 10% of our total product purchases in 2014, 2013, or 2012. We believe that, while we may experience some short-term disruption, alternative sources for products obtained directly from Ingram, Synnex, and Tech Data are available to us.
	Products manufactured by HP represented 22%, 25%, and 27% of our net sales in 2014, 2013, and 2012, respectively. We believe that in the event we experience either a short-term or permanent disruption of supply of HP products, such disruption would likely have a material adverse effect on our results of operations and cash flows.
Earnings Per Share	Earnings Per Share
	Basic earnings per common share is computed using the weighted average number of shares outstanding. Diluted earnings per share is computed using the weighted average number of shares outstanding adjusted for the incremental shares attributable to nonvested stock units and stock options outstanding, if dilutive.
	The following table sets forth the computation of basic and diluted earnings per share:
		2014		2013		2012
	Numerator:
	Net income	$	42,681	$	35,682	$	33,071
	Denominator:
	Denominator for basic earnings per share		26,246		26,120		26,431
	Dilutive effect of employee stock awards		266		267		155
	Denominator for diluted earnings per share		26,512		26,387		26,586
	Earnings per share:
	Basic	$	1.63	$	1.37	$	1.25
	Diluted	$	1.61	$	1.35	$	1.24
	For the years ended December 31, 2014, 2013, and 2012, the following outstanding nonvested stock units and stock options were excluded from the computation of diluted earnings per share because including them would have had an anti-dilutive effect:
		2014		2013		2012
	Employee stock awards		98		162		299
Comprehensive Income	Comprehensive Income
	We had no items of comprehensive income, other than our net income for each of the periods presented.
Recently Issued Financial Accounting Standards	Recently Issued Financial Accounting Standards
	On May 28, 2014, the Financial Accounting Standards Board, or the FASB, issued Accounting Standards Update 2014-09, Revenue from Contracts with Customers (“ASU 2014-09”), its final standard on revenue from contracts with customers. ASU 2014-09 outlines a single comprehensive model for entities to use in accounting for revenue arising from contracts with customers and supersedes most current revenue recognition guidance, including industry-specific guidance. The core principle of the revenue model is that an entity recognizes revenue to depict the transfer of promised goods or services to customers in an amount that reflects the consideration to which the entity expects to be entitled in exchange for those goods or services. In applying the revenue model to contracts within its scope, an entity identifies the contract(s) with a customer, identifies the performance obligations in the contract, determines the transaction price, allocates the transaction price to the performance obligations in the contract, and recognizes revenue when (or as) the entity satisfies a performance obligation. ASU 2014-09 applies to all contracts with customers that are within the scope of other topics in the FASB Accounting Standards Codification. ASU 2014-09 also requires significantly expanded disclosures about revenue recognition. ASU 2014-09 is effective for us on January 1, 2017. The Company is currently assessing the potential impact of the adoption of ASU 2014-09 on its consolidated financial statements.

Summary_of_Significant_Account2

Summary of Significant Accounting Policies (Tables)	12 Months Ended
	Dec. 31, 2014
Distribution Costs Included in Selling, General and Administrative Expenses	Direct operating expenses relating to our purchasing function and receiving, inspection, warehousing, packing and shipping, and other expenses of our distribution center are included in our SG&A expenses. Accordingly, our gross margin may not be comparable to those of other entities who include all of the costs related to their distribution network in cost of goods sold. Such distribution costs included in our SG&A expenses are as follows:
	Years Ended December 31,
	2014	2013		2012
	$13,934	$	13,843	$	13,878
Computation of Basic and Diluted Earnings Per Share	The following table sets forth the computation of basic and diluted earnings per share:
		2014		2013		2012
	Numerator:
	Net income	$	42,681	$	35,682	$	33,071
	Denominator:
	Denominator for basic earnings per share		26,246		26,120		26,431
	Dilutive effect of employee stock awards		266		267		155
	Denominator for diluted earnings per share		26,512		26,387		26,586
	Earnings per share:
	Basic	$	1.63	$	1.37	$	1.25
	Diluted	$	1.61	$	1.35	$	1.24
Outstanding Non-vested Stock Units and Stock Options Excluded from Computation of Diluted Earnings Per Share	For the years ended December 31, 2014, 2013, and 2012, the following outstanding nonvested stock units and stock options were excluded from the computation of diluted earnings per share because including them would have had an anti-dilutive effect:
		2014		2013		2012
	Employee stock awards		98		162		299

Goodwill_and_Other_Intangible_1

Goodwill and Other Intangible Assets (Tables)	12 Months Ended
	Dec. 31, 2014
Carrying Amount of Goodwill	The carrying amount of goodwill for the periods presented is detailed below:
		SMB			Large Account		Public Sector			Total
	Goodwill, gross	$	1,173		$	51,276	$	7,634		$	60,083
	Accumulated impairment losses		(1,173	)		—		(7,634	)		(8,807	)
	Net balance	$	—		$	51,276	$	—		$	51,276
Intangible Assets and Related Accumulated Amortization	Our intangible assets, which are amortized in proportion to the estimates of the future cash flows underlying the valuation of the assets, and the related accumulated amortization, are detailed below:
					December 31, 2014								December 31, 2013
		Estimated			Gross		Accumulated			Net			Gross		Accumulated		Net
		Useful Lives			Amount		Amortization			Amount			Amount		Amortization		Amount
	Customer List		8		$	3,400	$	2,037		$	1,363		$	3,400	$	1,514	$	1,886
	Tradename		5			1,190		635			555			1,190		397		793
	License Agreements		5			800		765			35			800		625		175
	Total Intangible Assets				$	5,390	$	3,437		$	1,953		$	5,390	$	2,536	$	2,854
Estimated Amortization Expense	The estimated amortization expense relating to intangible assets in each of the five succeeding years is as follows:
	For the Years Ending December 31,
	2015	$	735
	2016		599
	2017		362
	2018		221
	2019		36
		$	1,953

Accounts_Receivable_Tables

Accounts Receivable (Tables)	12 Months Ended
	Dec. 31, 2014
Accounts Receivable	Accounts receivable consisted of the following:
		December 31,
		2014			2013
	Trade	$	276,593		$	266,330
	Vendor returns, consideration, and other		21,597			21,872
	Due from employees		183			163
	Due from affiliates		12			11
	Total Gross Accounts Receivable		298,385			288,376
	Allowances for:
	Sales returns		(3,223	)		(3,060	)
	Doubtful accounts		(2,135	)		(2,265	)
	Accounts Receivable, net	$	293,027		$	283,051

Property_and_Equipment_Tables

Property and Equipment (Tables)	12 Months Ended
	Dec. 31, 2014
Property and Equipment	Property and equipment consisted of the following:
		December 31,
		2014			2013
	Computer software, including licenses and internally-developed software	$	63,721		$	58,257
	Furniture and equipment		25,886			25,698
	Leasehold improvements		7,611			7,534
	Facilities and equipment under capital lease with affiliate		—			7,215
	Total		97,218			98,704
	Accumulated depreciation and amortization		(69,357	)		(71,104	)
	Property and equipment, net	$	27,861		$	27,600

Bank_Borrowings_Tables

Bank Borrowings (Tables)	12 Months Ended
	Dec. 31, 2014
Short-Term Borrowings	Certain information with respect to short-term borrowings was as follows:
	Year ended December 31,	Weighted			Maximum		Average
		Average			Amount		Amount
		Interest  Rate			Outstanding		Outstanding
	2012		0.8	%	$	6,707	$	19

Stockholders_Equity_and_ShareB1

Stockholders' Equity and Share-Based Compensation (Tables)	12 Months Ended
	Dec. 31, 2014
Dividend Payments	The following table summarizes our special cash dividend payments in the three years ended December 31, 2014:
		2014			2013			2012
	Dividend per share	$	0.4		$	0.4		$	0.38
	Shareholder record date		12/1/14			12/12/13			11/28/12
	Total payment	$	10,527		$	10,475		$	10,074
Components of Share-Based Compensation Recorded as Expense	The following table summarizes the components of share-based compensation recorded as expense for the three years ended December 31, 2014:
		2014			2013			2012
	Nonvested shares/units	$	946		$	864		$	1,333
	Stock options		(17	)		94			161
	Pre-tax compensation expense		929			958			1,494
	Tax benefit		(355	)		(329	)		(517	)
	Net effect on net income	$	574		$	629		$	977
Stock Option Activity	The following table sets forth our stock option activity for the year ended December 31, 2014:
		Options			Weighted			Weighted			Aggregate
					Average			Average			Intrinsic
					Exercise Price			Remaining			Value
								Contractual
								Term (Years)
	Outstanding, January 1, 2014		259		$	10.36
	Exercised		(49	)		7.23
	Forfeited		—			—
	Expired		—			—
	Outstanding, December 31, 2014		210		$	11.1			3.21		$	2,822
	Vested and expected to vest		210		$	11.1			3.21		$	2,822
	Exercisable, December 31, 2014		210		$	11.1			3.21		$	2,822
Nonvested Stock Award and Unit Activity	The following table summarizes our nonvested stock unit activity in 2014:
		Nonvested Stock Units
		Shares			Weighted-Average
					Grant Date
					Fair Value
	Nonvested at January 1, 2014		475		$	12.7
	Awarded		98			22.5
	Vested		(86	)		9.35
	Nonvested at December 31, 2014		487			15.26
Phantom Share Units (PSUs)
Stock Equivalent Units	We have also issued stock equivalent units, (“SEUs”), which settle in cash and vest ratably over four years. The fair value of these liability awards is based on the closing market price of our common stock, and is remeasured at the end of each reporting period until the SEUs vest. We report the compensation as a component of SG&A expense and the related liability as accrued payroll on the consolidated balance sheet.
		2014			2013			2012
	Units issued		99			40			179
	Compensation expense	$	1,428		$	1,159		$	349

Income_Taxes_Tables

Income Taxes (Tables)	12 Months Ended
	Dec. 31, 2014
Provision for Income Taxes	The provision for income taxes consisted of the following:
		Years Ended December 31,
		2014			2013			2012
	Current:
	Federal	$	22,612		$	15,494		$	17,728
	State		4,863			3,493			3,034
	Total current		27,475			18,987			20,762
	Deferred:
	Federal		991			4,160			344
	State		221			418			330
	Total deferred		1,212			4,578			674
	Net provision	$	28,687		$	23,565		$	21,436
Components of Deferred Taxes	The components of the deferred taxes at December 31, 2014 and 2013 are as follows:
		2014			2013
	Deferred tax assets:
	Provisions for doubtful accounts	$	843		$	891
	Inventory costs capitalized for tax purposes		186			166
	Inventory valuation reserves		503			558
	Sales return reserves		163			155
	Deductible expenses, primarily employee-benefit related		637			615
	Accrued compensation		3,120			1,764
	State tax contingency		298			248
	Other		2,024			2,076
	Compensation under non-statutory stock option agreements		691			669
	State tax loss carryforwards		579			622
	Federal benefit for uncertain state tax positions		649			692
	Total gross deferred tax assets		9,693			8,456
	Less: Valuation allowance		(313	)		(249	)
	Net deferred tax assets		9,380			8,207
	Deferred tax liabilities:
	Goodwill and other intangibles		(14,379	)		(12,926	)
	Property and equipment		(6,055	)		(5,123	)
	Total gross deferred tax liabilities		(20,434	)		(18,049	)
	Net deferred tax liability	$	(11,054	)	$	(9,842	)
	Current deferred tax assets	$	7,749		$	6,382
	Noncurrent deferred tax liability		(18,803	)		(16,224	)
	Net deferred tax liability	$	(11,054	)	$	(9,842	)
Reconciliation of Income Tax Provision to Total Income Taxes at Statutory Federal Tax Rate	A reconciliation of our 2014, 2013, and 2012 income tax provision to total income taxes at the statutory federal tax rate is as follows:
		2014			2013			2012
	Federal income taxes, at statutory tax rate	$	24,979		$	20,736		$	19,077
	State income taxes, net of federal benefit		3,459			2,467			2,232
	Nondeductible expenses		503			420			277
	Other—net		(254	)		(58	)		(150	)
	Tax provision	$	28,687		$	23,565		$	21,436
Reconciliation of Unrecognized Tax Benefits	A reconciliation of unrecognized tax benefits for 2014, 2013, and 2012, is as follows:
		2014			2013			2012
	Balance at January 1,	$	1,008		$	1,084		$	1,535
	Lapses of applicable statute of limitations		(116	)		(76	)		(451	)
	Balance at December 31,	$	892		$	1,008		$	1,084

Commitments_And_Contingencies_

Commitments And Contingencies (Tables)	12 Months Ended
	Dec. 31, 2014
Future Aggregate Minimum Annual Lease Payments Under Operating Leases	Future aggregate minimum annual lease payments under these leases at December 31, 2014 are as follows:
	Year Ending December 31	Related Parties		Others		Total
	2015	$	1,497	$	2,079	$	3,576
	2016		1,497		1,386		2,883
	2017		1,497		1,055		2,552
	2018		1,393		776		2,169
	2019		—		764		764
	2020 and thereafter		—		4,582		4,582

Other_RelatedParty_Transaction1

Other Related-Party Transactions (Tables)	12 Months Ended
	Dec. 31, 2014
Other Related-Party Transactions
		2014		2013		2012
	Revenue:
	Sales of services to affiliated companies	$	118	$	115	$	100

Segment_and_Related_Disclosure1

Segment and Related Disclosures (Tables)	12 Months Ended
	Dec. 31, 2014
Segment Information Applicable to Reportable Operating Segments	Net sales presented below exclude inter-segment product revenues. Segment information applicable to our reportable operating segments for the years ended December 31, 2014, 2013, and 2012 is shown below:
		Years ended December 31,
		2014			2013			2012
	Net sales:
	SMB	$	1,037,620		$	952,785		$	902,642
	Large Account		850,796			793,686			773,352
	Public Sector		574,923			475,167			482,879
	Total net sales	$	2,463,339		$	2,221,638			2,158,873
	Operating income (loss):
	SMB	$	39,608		$	31,635		$	31,730
	Large Account		39,229			31,667			32,764
	Public Sector		3,621			3,415			8,316
	Headquarters/Other		(11,004	)		(7,321	)		(18,178	)
	Total operating income		71,454			59,396			54,632
	Interest expense		(86	)		(149	)		(166	)
	Other, net		—			—			41
	Income before taxes	$	71,368		$	59,247		$	54,507
	Selected operating expense:
	Depreciation and amortization:
	SMB	$	5		$	5		$	9
	Large Account		1,368			2,079			2,156
	Public Sector		124			174			165
	Headquarters/Other		6,595			4,831			4,565
	Total depreciation and amortization	$	8,092		$	7,089		$	6,895
	Special charges (Headquarters/Other)	$	—		$	—		$	1,135
	Total assets:
	SMB	$	186,534		$	165,620		$	146,633
	Large Account		250,470			243,940			221,171
	Public Sector		63,239			57,961			63,210
	Headquarters/Other		39,717			33,423			37,309
	Total assets	$	539,960		$	500,944		$	468,323

Quarterly_Financial_Results_Un1

Quarterly Financial Results (Unaudited) (Tables)	12 Months Ended
	Dec. 31, 2014
Quarterly Operating Results
		Quarters Ended
		March 31,			June 30,			September 30,			December 31,
		2014			2014			2014			2014
	Net sales	$	559,760		$	633,244		$	639,570		$	630,765
	Cost of sales		486,913			549,478			555,918			547,641
	Gross profit		72,847			83,766			83,652			83,124
	Selling, general and administrative expenses		61,101			64,564			63,235			63,035
	Income from operations		11,746			19,202			20,417			20,089
	Interest expense		(10	)		(26	)		(36	)		(14	)
	Income before taxes		11,736			19,176			20,381			20,075
	Income tax provision		(4,605	)		(7,747	)		(8,204	)		(8,131	)
	Net income	$	7,131		$	11,429		$	12,177		$	11,944
	Earnings per common share:
	Basic	$	0.27		$	0.44		$	0.46		$	0.45
	Diluted	$	0.27		$	0.43		$	0.46		$	0.45
	Weighted average common shares outstanding:
	Basic		26,202			26,206			26,266			26,311
	Diluted		26,485			26,487			26,524			26,554
		Quarters Ended
		March 31,			June 30,			September 30,			December 31,
		2013			2013			2013			2013
	Net sales	$	505,423		$	557,287		$	580,356		$	578,572
	Cost of sales		438,585			483,371			503,803			502,879
	Gross profit		66,838			73,916			76,553			75,693
	Selling, general and administrative expenses		56,713			58,533			59,043			59,315
	Income from operations		10,125			15,383			17,510			16,378
	Interest expense		(53	)		(46	)		(39	)		(11	)
	Other, net		3			—			—			(3	)
	Income before taxes		10,075			15,337			17,471			16,364
	Income tax provision		(3,977	)		(6,183	)		(6,882	)		(6,523	)
	Net income	$	6,098		$	9,154		$	10,589		$	9,841
	Earnings per common share:
	Basic	$	0.23		$	0.35		$	0.4		$	0.38
	Diluted	$	0.23		$	0.35		$	0.4		$	0.37
	Weighted average common shares outstanding:
	Basic		25,998			26,127			26,169			26,181
	Diluted		26,272			26,379			26,399			26,453

Recovered_Sheet1

Summary Of Significant Accounting Policies - Additional Information (Detail) (USD $)	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
	Segment
Significant Accounting Policies [Line Items]
Number of sales segments	3
Third-party services and agency sales transactions	$25,696,000	$20,570,000	$18,870,000
Amounts due from banks for credit card transactions, classified as cash equivalents	3,863,000	5,115,000
Comprehensive income	0	0	0
Minimum
Significant Accounting Policies [Line Items]
Property and equipment, estimated useful lives	3 years
Maximum
Significant Accounting Policies [Line Items]
Property and equipment, estimated useful lives	7 years
Ingram Micro Inc Class
Significant Accounting Policies [Line Items]
Product purchases, percentage	25.00%	24.00%	26.00%
Synnex Corporation
Significant Accounting Policies [Line Items]
Product purchases, percentage	13.00%	12.00%	14.00%
Tech Data Corporation
Significant Accounting Policies [Line Items]
Product purchases, percentage	8.00%	10.00%	10.00%
Hewlett Packard Company
Significant Accounting Policies [Line Items]
Products manufactured by HP as a percentage of net sales	22.00%	25.00%	27.00%
Software | Minimum
Significant Accounting Policies [Line Items]
Finite-lived intangible assets, estimated useful lives	3 years
Software | Maximum
Significant Accounting Policies [Line Items]
Finite-lived intangible assets, estimated useful lives	7 years
Selling, General and Administrative Expenses
Significant Accounting Policies [Line Items]
Advertising expense	15,767,000	18,019,000	20,029,000
Single Customer | Maximum
Significant Accounting Policies [Line Items]
Percentage of total net sales	2.00%	2.00%	2.00%
Federal Government Agencies
Significant Accounting Policies [Line Items]
Percentage of total net sales	6.50%	6.40%	8.40%
Federal Government Agencies | Maximum
Significant Accounting Policies [Line Items]
Percentage of total net sales	2.00%	2.00%	2.00%
Accounts Receivable
Significant Accounting Policies [Line Items]
Sale reserves	3,223,000	3,060,000
Accrued Expenses
Significant Accounting Policies [Line Items]
Sale reserves	$205,000	$208,000

Distribution_Costs_Included_in

Distribution Costs Included in Selling, General and Administrative Expenses (Detail) (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Component Of Other Operating Income And Expense [Line Items]
Distribution costs	$13,934	$13,843	$13,878

Computation_of_Basic_and_Dilut

Computation of Basic and Diluted Earnings Per Share (Detail) (USD $)	3 Months Ended								12 Months Ended
In Thousands, except Per Share data, unless otherwise specified	Dec. 31, 2014	Sep. 30, 2014	Jun. 30, 2014	Mar. 31, 2014	Dec. 31, 2013	Sep. 30, 2013	Jun. 30, 2013	Mar. 31, 2013	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Numerator:
Net income	$11,944	$12,177	$11,429	$7,131	$9,841	$10,589	$9,154	$6,098	$42,681	$35,682	$33,071
Denominator:
Denominator for basic earnings per share	26,311	26,266	26,206	26,202	26,181	26,169	26,127	25,998	26,246	26,120	26,431
Dilutive effect of employee stock awards									266	267	155
Denominator for diluted earnings per share	26,554	26,524	26,487	26,485	26,453	26,399	26,379	26,272	26,512	26,387	26,586
Earnings per share:
Basic	$0.45	$0.46	$0.44	$0.27	$0.38	$0.40	$0.35	$0.23	$1.63	$1.37	$1.25
Diluted	$0.45	$0.46	$0.43	$0.27	$0.37	$0.40	$0.35	$0.23	$1.61	$1.35	$1.24

Outstanding_Nonvested_Stock_Un

Outstanding Nonvested Stock Units and Stock Options Excluded From Computation of Diluted Earnings Per Share (Detail)	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Employee stock awards	98	162	299

Recovered_Sheet2

Goodwill And Other Intangible Assets - Additional Information (Detail) (USD $)	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Finite-Lived Intangible Assets [Line Items]
Weighted average cost of capital rate	12.50%
Estimated terminal growth rate	4.00%
Working capital requirements	7.50%
Changes in carrying amount of goodwill	$0	$0
Amortization expense	$901,000	$903,000	$1,448,000

Carrying_Amount_of_Goodwill_De

Carrying Amount of Goodwill (Detail) (USD $)	Dec. 31, 2014	Dec. 31, 2013
In Thousands, unless otherwise specified
Goodwill [Line Items]
Goodwill, gross	$60,083
Accumulated impairment losses	-8,807
Net balance	51,276	51,276
Small and Medium Sized Businesses segment
Goodwill [Line Items]
Goodwill, gross	1,173
Accumulated impairment losses	-1,173
Large Account Segment
Goodwill [Line Items]
Goodwill, gross	51,276
Net balance	51,276
Public Sector Segment
Goodwill [Line Items]
Goodwill, gross	7,634
Accumulated impairment losses	($7,634)

Amortizable_Intangible_Assets_

Amortizable Intangible Assets and Related Accumulated Amortization (Detail) (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013
Finite-Lived Intangible Assets [Line Items]
Gross Amount	$5,390	$5,390
Accumulated Amortization	3,437	2,536
Net Amount	1,953	2,854
Customer List
Finite-Lived Intangible Assets [Line Items]
Estimated Useful Lives	8 years
Gross Amount	3,400	3,400
Accumulated Amortization	2,037	1,514
Net Amount	1,363	1,886
Tradename
Finite-Lived Intangible Assets [Line Items]
Estimated Useful Lives	5 years
Gross Amount	1,190	1,190
Accumulated Amortization	635	397
Net Amount	555	793
License Agreements
Finite-Lived Intangible Assets [Line Items]
Estimated Useful Lives	5 years
Gross Amount	800	800
Accumulated Amortization	765	625
Net Amount	$35	$175

Estimated_Amortization_Expense

Estimated Amortization Expenses (Detail) (USD $)	Dec. 31, 2014	Dec. 31, 2013
In Thousands, unless otherwise specified
Finite-Lived Intangible Assets [Line Items]
2015	$735
2016	599
2017	362
2018	221
2019	36
Net Amount	$1,953	$2,854

Accounts_Receivable_Detail

Accounts Receivable (Detail) (USD $)	Dec. 31, 2014	Dec. 31, 2013
In Thousands, unless otherwise specified
Accounts, Notes, Loans and Financing Receivable [Line Items]
Trade	$276,593	$266,330
Vendor returns, consideration, and other	21,597	21,872
Due from employees	183	163
Due from affiliates	12	11
Total Gross Accounts Receivable	298,385	288,376
Doubtful accounts	-2,135	-2,265
Accounts Receivable, net	293,027	283,051
Accounts Receivable
Accounts, Notes, Loans and Financing Receivable [Line Items]
Sales returns	($3,223)	($3,060)

Property_and_Equipment_Detail

Property and Equipment (Detail) (USD $)	Dec. 31, 2014	Dec. 31, 2013
In Thousands, unless otherwise specified
Property, Plant and Equipment [Line Items]
Computer software, including licenses and internally-developed software	$63,721	$58,257
Furniture and equipment	25,886	25,698
Leasehold improvements	7,611	7,534
Facilities and equipment under capital lease with affiliate		7,215
Total	97,218	98,704
Accumulated depreciation and amortization	-69,357	-71,104
Property and equipment, net	$27,861	$27,600

Property_and_Equipment_Additio

Property and Equipment - Additional Information (Detail) (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Property, Plant and Equipment [Line Items]
Depreciation and amortization	$7,191	$6,186	$5,447
Capital lease agreement expiration date	31-Dec-13

Bank_Borrowings_Additional_inf

Bank Borrowings - Additional information (Detail) (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013
Subordinated Borrowing [Line Items]
Line of credit, borrowing capacity	$50,000
Credit facility, expiration date	24-Feb-17
Line of credit, maximum borrowing capacity	80,000
Debt instrument, description of variable rate basis	One-month LIBOR
Debt ratio	2
Line of credit, outstanding borrowing	0	0
Line of credit, available for borrowing	$50,000	$50,000
Prime Rate
Subordinated Borrowing [Line Items]
Debt instrument, interest rate	3.25%
One-month LIBOR rate
Subordinated Borrowing [Line Items]
Debt instrument, interest rate	0.17%

ShortTerm_Borrowings_Detail

Short-Term Borrowings (Detail) (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2012
Short-term Debt [Line Items]
Weighted Average Interest Rate	0.80%
Maximum Amount Outstanding	$6,707
Average Amount Outstanding	$19

Trade_Credit_Agreements_Additi

Trade Credit Agreements - Additional Information (Detail) (USD $)	Dec. 31, 2014	Dec. 31, 2013
In Thousands, unless otherwise specified
Maximum
Debt Instrument [Line Items]
Amount owed to financial institution for inventory financing	$57,000
Accounts Payable
Debt Instrument [Line Items]
Amount owed to financial institution for inventory financing	$17,638	$15,543

Stockholders_Equity_and_Share_

Stockholders' Equity and Share Based Compensation - Additional Information (Detail) (USD $)	12 Months Ended			1 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012	Nov. 30, 1997	Mar. 28, 2001	31-May-14	Feb. 11, 2014
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Preferred Stock, shares authorized	10,000,000	10,000,000
Preferred Stock, par value	$0.01	$0.01
Preferred Stock, shares outstanding	0	0
Repurchase of common stock, authorized amount					$15,000,000
Number of share repurchased	0	0	762,000
Shares repurchased, value			7,813,000
Amount of aggregated share repurchased	12,233,000
Number of aggregated share repurchased	1,682,000
Maximum approximate dollar value of shares that may yet be purchased	2,767,000
Intrinsic value options exercised	732,000	1,610,000	374,000
1997 Stock Incentive Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Option outstanding	155,000
Term of stock option				10 years
Stock Incentive Plan 2007
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Term of stock option	10 years
Shares authorized for issuance under stock incentive plan						1,600,000
Shares available for future grant	155,000
1997 Employee Stock Purchase Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Purchase price under employee stock purchase plan as a percentage of price as of the last day of each six month offering period	95.00%
Common stock reserved for issuance	1,038,000
Share purchased under employee stock purchase plan	989,000
Nonvested Stock Units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Weighted-average grant-date fair values of nonvested stock awards granted	$22.50	$21.51	$9.84
Total fair values of nonvested stock awards that vested	1,854,000	768,000	0
Unearned compensation cost	6,079,000
Unrecognized compensation costs, weighted average period of recognition	7 years 3 months 18 days
Phantom Share Units (PSUs)
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting period	4 years	4 years
Two Principal Stockholders
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of share repurchased			600,000
Stock Repurchase Price			$10.58
Maximum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Repurchase of common stock, authorized amount							$15,000,000
Maximum | Nonvested Stock Units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting period	11 years	11 years	11 years

Dividend_Payments_Detail

Dividend Payments (Detail) (USD $)	12 Months Ended
In Thousands, except Per Share data, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Dividend Declared [Line Items]
Dividend per share	$0.40	$0.40	$0.38
Shareholder record date	1-Dec-14	12-Dec-13	28-Nov-12
Total payment	$10,527	$10,475	$10,074

Components_of_ShareBased_Compe

Components of Share-Based Compensation Recorded as Expense (Detail) (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Pre-tax compensation expense	$929	$958	$1,494
Tax benefit	-355	-329	-517
Net effect on net income	574	629	977
Stock Options
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Pre-tax compensation expense	-17	94	161
Nonvested shares/units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Pre-tax compensation expense	$946	$864	$1,333

Stock_Option_Activity_Detail

Stock Option Activity (Detail) (Stock Options, USD $)	12 Months Ended
In Thousands, except Per Share data, unless otherwise specified	Dec. 31, 2014
Stock Options
Options
Outstanding at beginning of period	259
Exercised	-49
Forfeited	0
Expired	0
Outstanding at end of period	210
Vested and expected to vest	210
Exercisable at end of period	210
Weighted Average Exercise Price
Outstanding at beginning of period	$10.36
Exercised	$7.23
Forfeited	$0
Expired	$0
Outstanding at end of period	$11.10
Vested and expected to vest	$11.10
Exercisable at end of period	$11.10
Weighted Average Remaining Contractual Term (Years)
Outstanding at end of period	3 years 2 months 16 days
Vested and expected to vest	3 years 2 months 16 days
Exercisable at end of period	3 years 2 months 16 days
Aggregate Intrinsic Value
Outstanding at end of period	$2,822
Vested and expected to vest	2,822
Exercisable at end of period	$2,822

Nonvested_Stock_Award_and_Unit

Nonvested Stock Award and Unit Activity (Detail) (Nonvested Stock Units, USD $)	12 Months Ended
In Thousands, except Per Share data, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Nonvested Stock Units
Shares
Nonvested shares beginning balance	475
Awarded	98
Vested	-86
Nonvested shares ending balance	487	475
Weighted-Average Grant Date Fair Value
Nonvested shares beginning balance	$12.70
Awarded	$22.50	$21.51	$9.84
Vested	$9.35
Nonvested shares ending balance	$15.26	$12.70

Stock_Equivalent_Units_Detail

Stock Equivalent Units (Detail) (Phantom Share Units (PSUs), USD $)	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Phantom Share Units (PSUs)
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Units issued	99	40	179
Compensation expense	$1,428	$1,159	$349

Provision_for_Income_Taxes_Det

Provision for Income Taxes (Detail) (USD $)	3 Months Ended								12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2014	Sep. 30, 2014	Jun. 30, 2014	Mar. 31, 2014	Dec. 31, 2013	Sep. 30, 2013	Jun. 30, 2013	Mar. 31, 2013	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Current:
Federal									$22,612	$15,494	$17,728
State									4,863	3,493	3,034
Total current									27,475	18,987	20,762
Deferred:
Federal									991	4,160	344
State									221	418	330
Total deferred									1,212	4,578	674
Net provision	$8,131	$8,204	$7,747	$4,605	$6,523	$6,882	$6,183	$3,977	$28,687	$23,565	$21,436

Components_of_Deferred_Taxes_D

Components of Deferred Taxes (Detail) (USD $)	Dec. 31, 2014	Dec. 31, 2013
In Thousands, unless otherwise specified
Deferred tax assets:
Provisions for doubtful accounts	$843	$891
Inventory costs capitalized for tax purposes	186	166
Inventory valuation reserves	503	558
Sales return reserves	163	155
Deductible expenses, primarily employee-benefit related	637	615
Accrued compensation	3,120	1,764
State tax contingency	298	248
Other	2,024	2,076
Compensation under non-statutory stock option agreements	691	669
State tax loss carryforwards	579	622
Federal benefit for uncertain state tax positions	649	692
Total gross deferred tax assets	9,693	8,456
Less: Valuation allowance	-313	-249
Net deferred tax assets	9,380	8,207
Deferred tax liabilities:
Goodwill and other intangibles	-14,379	-12,926
Property and equipment	-6,055	-5,123
Total gross deferred tax liabilities	-20,434	-18,049
Net deferred tax liability	-11,054	-9,842
Current deferred tax assets	7,749	6,382
Noncurrent deferred tax liability	-18,803	-16,224
Net deferred tax liability	($11,054)	($9,842)

Income_Taxes_Additional_Inform

Income Taxes - Additional Information (Detail) (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Income Tax Examination [Line Items]
State net operating loss carryforwards	$891
Operating loss carryforwards, state tax benefits net of federal taxes	579	622
State tax credit and state tax loss carryforwards, valuation allowance	313	249
Net change in the valuation allowance related to utilization and expiration of tax carryforwards	64	-42	-237
Unrecognized income tax benefits, interest and penalties recognized	80	81	93
Unrecognized income tax benefits, accrued interest	966	967
Unrecognized income tax benefits, accrued penalties	224	254
State Jurisdiction | Minimum
Income Tax Examination [Line Items]
Tax years remain open to examination	2010
State Jurisdiction | Maximum
Income Tax Examination [Line Items]
Tax years remain open to examination	2013
Internal Revenue Service (IRS) | Minimum
Income Tax Examination [Line Items]
Tax years remain open to examination	2011
Internal Revenue Service (IRS) | Maximum
Income Tax Examination [Line Items]
Tax years remain open to examination	2013
Expiring After 2016
Income Tax Examination [Line Items]
State net operating loss carryforwards	8
Expiring After 2017
Income Tax Examination [Line Items]
State net operating loss carryforwards	6
Expiring After 2018
Income Tax Examination [Line Items]
State net operating loss carryforwards	2
Expiring After 2019
Income Tax Examination [Line Items]
State net operating loss carryforwards	$875
Period 1
Income Tax Examination [Line Items]
State net operating loss carryforwards, expiration period	5 years
Period 2
Income Tax Examination [Line Items]
State net operating loss carryforwards, expiration period	15 years
Period 3
Income Tax Examination [Line Items]
State net operating loss carryforwards, expiration period	20 years

Reconciliation_of_Income_Tax_P

Reconciliation of Income Tax Provision To Total Income Taxes At Statutory Federal Tax Rate (Detail) (USD $)	3 Months Ended								12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2014	Sep. 30, 2014	Jun. 30, 2014	Mar. 31, 2014	Dec. 31, 2013	Sep. 30, 2013	Jun. 30, 2013	Mar. 31, 2013	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Investments, Owned, Federal Income Tax Note [Line Items]
Federal income taxes, at statutory tax rate									$24,979	$20,736	$19,077
State income taxes, net of federal benefit									3,459	2,467	2,232
Nondeductible expenses									503	420	277
Other-net									-254	-58	-150
Net provision	$8,131	$8,204	$7,747	$4,605	$6,523	$6,882	$6,183	$3,977	$28,687	$23,565	$21,436

Reconciliation_Of_Unrecognized

Reconciliation Of Unrecognized Tax Benefits (Detail) (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Income Tax Contingency [Line Items]
Beginning balance	$1,008	$1,084	$1,535
Lapses of applicable statute of limitations	-116	-76	-451
Ending balance	$892	$1,008	$1,084

Employee_Benefit_Plan_Addition

Employee Benefit Plan - Additional Information (Detail) (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Defined Contribution Plan Disclosure [Line Items]
Employer matching contributions to employee savings	$1,873	$1,768	$1,568

Recovered_Sheet3

Commitments and Contingencies - Additional Information (Detail) (USD $)	0 Months Ended	12 Months Ended
In Thousands, unless otherwise specified	Aug. 27, 2014	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Loss Contingencies [Line Items]
Operating lease term	10 years
Property leased from unrelated parties with remaining terms, minimum		1 year
Property leased from unrelated parties with remaining terms, maximum		10 years
Total rent expense		$4,322	$3,282	$3,318
Total accruals for unclaimed property		1,850	1,792
Corporate Headquarters
Loss Contingencies [Line Items]
Operating lease term		5 years
Operating lease renewal term		5 years
Adjacent Office Facility
Loss Contingencies [Line Items]
Operating lease term		10 years
Operating lease renewal term		2 years
Operating lease term, number of additional renewal option		2
Related Party
Loss Contingencies [Line Items]
Total rent expense		$1,639	$372	$464

Future_Aggregate_Minimum_Annua

Future Aggregate Minimum Annual Lease Payments Under Operating Leases (Detail) (USD $)	Dec. 31, 2014
In Thousands, unless otherwise specified
Operating Leased Assets [Line Items]
2015	$3,576
2016	2,883
2017	2,552
2018	2,169
2019	764
2020 and thereafter	4,582
Related Parties
Operating Leased Assets [Line Items]
2015	1,497
2016	1,497
2017	1,497
2018	1,393
Others
Operating Leased Assets [Line Items]
2015	2,079
2016	1,386
2017	1,055
2018	776
2019	764
2020 and thereafter	$4,582

Other_RelatedParty_Transaction2

Other Related-Party Transactions (Detail) (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Related Party Transaction [Line Items]
Sales of services to affiliated companies	$118	$115	$100

Segment_and_Related_Disclosure2

Segment and Related Disclosures - Additional Information (Detail) (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Segment Reporting Information [Line Items]
Number of reporting segments	3
Goodwill	51,276	51,276
Total assets	539,960	500,944	468,323
Single Customer | Maximum
Segment Reporting Information [Line Items]
Percentage of sales by segment	2.00%	2.00%	2.00%
Federal Government Agencies
Segment Reporting Information [Line Items]
Percentage of sales by segment	6.50%	6.40%	8.40%
Federal Government Agencies | Maximum
Segment Reporting Information [Line Items]
Percentage of sales by segment	2.00%	2.00%	2.00%
Geographic Concentration Risk | Maximum
Segment Reporting Information [Line Items]
Percentage of sales by segment	2.00%	2.00%	2.00%
Large Account Segment
Segment Reporting Information [Line Items]
Goodwill	51,276	51,276
Intersegment Elimination
Segment Reporting Information [Line Items]
Total assets	-29,605	-30,481

Segment_Information_Applicable

Segment Information Applicable to Reportable Operating Segment (Detail) (USD $)	3 Months Ended								12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2014	Sep. 30, 2014	Jun. 30, 2014	Mar. 31, 2014	Dec. 31, 2013	Sep. 30, 2013	Jun. 30, 2013	Mar. 31, 2013	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Net sales:
Net sales	$630,765	$639,570	$633,244	$559,760	$578,572	$580,356	$557,287	$505,423	$2,463,339	$2,221,638	$2,158,873
Operating income (loss):
Operating income (loss)	20,089	20,417	19,202	11,746	16,378	17,510	15,383	10,125	71,454	59,396	54,632
Interest expense	-14	-36	-26	-10	-11	-39	-46	-53	-86	-149	-166
Other, net					-3			3			41
Income before taxes	20,075	20,381	19,176	11,736	16,364	17,471	15,337	10,075	71,368	59,247	54,507
Depreciation and amortization:
Depreciation and amortization									8,092	7,089	6,895
Special charges											1,135
Total assets:
Total assets	539,960				500,944				539,960	500,944	468,323
Small and Medium Sized Businesses segment
Net sales:
Net sales									1,037,620	952,785	902,642
Operating income (loss):
Operating income (loss)									39,608	31,635	31,730
Depreciation and amortization:
Depreciation and amortization									5	5	9
Total assets:
Total assets	186,534				165,620				186,534	165,620	146,633
Large Account Segment
Net sales:
Net sales									850,796	793,686	773,352
Operating income (loss):
Operating income (loss)									39,229	31,667	32,764
Depreciation and amortization:
Depreciation and amortization									1,368	2,079	2,156
Total assets:
Total assets	250,470				243,940				250,470	243,940	221,171
Public Sector
Net sales:
Net sales									574,923	475,167	482,879
Operating income (loss):
Operating income (loss)									3,621	3,415	8,316
Depreciation and amortization:
Depreciation and amortization									124	174	165
Total assets:
Total assets	63,239				57,961				63,239	57,961	63,210
Headquarters and Other
Operating income (loss):
Operating income (loss)									-11,004	-7,321	-18,178
Depreciation and amortization:
Depreciation and amortization									6,595	4,831	4,565
Special charges											1,135
Total assets:
Total assets	$39,717				$33,423				$39,717	$33,423	$37,309

Quarterly_Data_of_Company_Deta

Quarterly Data of Company (Detail) (USD $)	3 Months Ended								12 Months Ended
In Thousands, except Per Share data, unless otherwise specified	Dec. 31, 2014	Sep. 30, 2014	Jun. 30, 2014	Mar. 31, 2014	Dec. 31, 2013	Sep. 30, 2013	Jun. 30, 2013	Mar. 31, 2013	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Net sales	$630,765	$639,570	$633,244	$559,760	$578,572	$580,356	$557,287	$505,423	$2,463,339	$2,221,638	$2,158,873
Cost of sales	547,641	555,918	549,478	486,913	502,879	503,803	483,371	438,585	2,139,950	1,928,638	1,876,784
Gross profit	83,124	83,652	83,766	72,847	75,693	76,553	73,916	66,838	323,389	293,000	282,089
Selling, general and administrative expenses	63,035	63,235	64,564	61,101	59,315	59,043	58,533	56,713	251,935	233,604	226,322
Income from operations	20,089	20,417	19,202	11,746	16,378	17,510	15,383	10,125	71,454	59,396	54,632
Interest expense	-14	-36	-26	-10	-11	-39	-46	-53	-86	-149	-166
Other, net					-3			3			41
Income before taxes	20,075	20,381	19,176	11,736	16,364	17,471	15,337	10,075	71,368	59,247	54,507
Income tax provision	-8,131	-8,204	-7,747	-4,605	-6,523	-6,882	-6,183	-3,977	-28,687	-23,565	-21,436
Net income	$11,944	$12,177	$11,429	$7,131	$9,841	$10,589	$9,154	$6,098	$42,681	$35,682	$33,071
Earnings per common share:
Basic	$0.45	$0.46	$0.44	$0.27	$0.38	$0.40	$0.35	$0.23	$1.63	$1.37	$1.25
Diluted	$0.45	$0.46	$0.43	$0.27	$0.37	$0.40	$0.35	$0.23	$1.61	$1.35	$1.24
Weighted average common shares outstanding:
Basic	26,311	26,266	26,206	26,202	26,181	26,169	26,127	25,998	26,246	26,120	26,431
Diluted	26,554	26,524	26,487	26,485	26,453	26,399	26,379	26,272	26,512	26,387	26,586

Summary_of_Valuation_and_Quali

Summary of Valuation and Qualifying Accounts (Detail) (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Allowance for Sales Returns
Valuation and Qualifying Accounts Disclosure [Line Items]
Beginning Balance	$3,060	$2,415	$2,432
Charged to Costs and Expenses	32,882	31,843	31,316
Deductions/Write-Offs	-32,719	-31,198	-31,333
Ending Balance	3,223	3,060	2,415
Allowance for Doubtful Accounts
Valuation and Qualifying Accounts Disclosure [Line Items]
Beginning Balance	2,265	2,514	3,294
Charged to Costs and Expenses	1,383	1,078	1,561
Deductions/Write-Offs	-1,513	-1,327	-2,341
Ending Balance	$2,135	$2,265	$2,514