Polycom (PLCM) 10-K 21 Feb 14 2013 FY Annual report Financial data

Document_and_Entity_Informatio

Document and Entity Information (USD $)	12 Months Ended
	Dec. 31, 2013	Feb. 13, 2014	Jun. 28, 2013
Document Information [Line Items]	'	'	'
Document Type	'10-K	'	'
Amendment Flag	'false	'	'
Document Period End Date	31-Dec-13	'	'
Document Fiscal Year Focus	'2013	'	'
Document Fiscal Period Focus	'FY	'	'
Trading Symbol	'PLCM	'	'
Entity Registrant Name	'POLYCOM INC	'	'
Entity Central Index Key	'0001010552	'	'
Current Fiscal Year End Date	'--12-31	'	'
Entity Well-known Seasoned Issuer	'Yes	'	'
Entity Current Reporting Status	'Yes	'	'
Entity Voluntary Filers	'No	'	'
Entity Filer Category	'Large Accelerated Filer	'	'
Entity Common Stock, Shares Outstanding	'	136,885,307	'
Entity Public Float	'	'	$1,784,834,094

Consolidated_Balance_Sheets

Consolidated Balance Sheets (USD $)	Dec. 31, 2013	Dec. 31, 2012
In Thousands, unless otherwise specified
Current assets	'	'
Cash and cash equivalents	$392,629	$477,073
Short-term investments	134,684	197,196
Trade receivables, net of allowance for doubtful accounts of $2,827 and $2,921 as of December 31, 2013 and 2012, respectively	183,369	194,654
Inventories	103,309	99,960
Deferred taxes	37,085	48,916
Prepaid expenses and other current assets	50,352	52,539
Total current assets	901,428	1,070,338
Property and equipment, net	115,157	133,319
Long-term investments	56,372	50,333
Goodwill	559,460	553,819
Purchased intangibles, net	37,458	54,983
Deferred taxes	51,398	28,406
Other assets	27,757	21,238
Total assets	1,749,030	1,912,436
Current liabilities	'	'
Accounts payable	84,640	89,983
Accrued payroll and employee-related liabilities	40,162	39,469
Taxes payable	5,389	4,736
Deferred revenue	172,408	158,482
Current portion of long-term debt	6,250	'
Other accrued liabilities	77,744	63,018
Total current liabilities	386,593	355,688
Long-term deferred revenue	87,467	91,061
Taxes payable	12,419	15,598
Deferred taxes	149	236
Long-term debt	242,188	'
Other long-term liabilities	43,849	22,079
Total liabilities	772,665	484,662
Commitments and contingencies (Note 11)	'	'
Stockholders’ equity	'	'
Common stock, $0.0005 par value; Authorized: 350,000,000 shares. Issued and outstanding: 135,159,966 and 175,323,885 shares at December 31, 2013 and 2012, respectively	68	38
Additional paid-in capital	1,104,273	1,326,436
Retained earnings (accumulated deficit)	-132,348	97,104
Accumulated other comprehensive income	4,372	4,196
Total stockholders’ equity	976,365	1,427,774
Total liabilities and stockholders’ equity	$1,749,030	$1,912,436

Consolidated_Balance_Sheets_Pa

Consolidated Balance Sheets (Parenthetical) (USD $)	Dec. 31, 2013	Dec. 31, 2012
In Thousands, except Share data, unless otherwise specified
Trade receivables, allowance for doubtful accounts	$2,827	$2,921
Common stock, par value	$0.00	$0.00
Common stock, shares authorized	350,000,000	350,000,000
Common stock, shares issued	135,159,966	175,323,885
Common stock, shares outstanding	135,159,966	175,323,885

Consolidated_Statements_Of_Ope

Consolidated Statements Of Operations (USD $)	12 Months Ended
In Thousands, except Per Share data, unless otherwise specified	Dec. 31, 2013		Dec. 31, 2012		Dec. 31, 2011
Revenues	'		'		'
Product revenues	$991,110		$1,042,484		$1,138,050
Service revenues	377,279		350,144		264,139
Total revenues	1,368,389	[1]	1,392,628	[1]	1,402,189	[1]
Cost of revenues	'		'		'
Cost of product revenues	422,429		426,369		439,995
Cost of service revenues	153,189		142,827		103,930
Total cost of revenues	575,618		569,196		543,925
Gross profit	792,771		823,432		858,264
Operating expenses	'		'		'
Sales and marketing	435,047		464,353		428,829
Research and development	216,032		208,510		190,322
General and administrative	96,602		98,285		81,661
Transaction-related costs	3,424		14,064		9,688
Amortization of purchased intangibles	10,389		9,830		5,542
Restructuring costs	48,470		22,024		9,396
Total operating expenses	809,964		817,066		725,438
Operating income (loss)	-17,193		6,366		132,826
Interest and other income (expense), net	'		'		'
Interest expense	-3,217		-751		-544
Other income (expense)	-1,794		-3,117		-1,128
Interest and other income (expense), net	-5,011		-3,868		-1,672
Income (loss) from continuing operations before provision for income taxes	-22,204		2,498		131,154
Provision for (benefit from) income taxes	-3,669		39,467		6,224
Net income (loss) from continuing operations	-18,535		-36,969		124,930
Income from operations of discontinued operations, net of taxes	'		9,888		9,906
Gain from sale of discontinued operations, net of taxes	459		35,425		'
Net income (loss)	($18,076)		$8,344		$134,836
Basic net income (loss) per share:	'		'		'
Net income (loss) per share from continuing operations	($0.11)		($0.21)		$0.71
Income per share from discontinued operations, net of taxes	'		$0.06		$0.06
Gain per share from sale of discontinued operations, net of taxes	'		$0.20		'
Basic net income (loss) per share	($0.11)		$0.05		$0.76
Diluted net income (loss) per share:	'		'		'
Net income (loss) per share from continuing operations	($0.11)		($0.21)		$0.69
Income per share from discontinued operations, net of taxes	'		$0.06		$0.05
Gain per share from sale of discontinued operations, net of taxes	'		$0.20		'
Diluted net income (loss) per share	($0.11)		$0.05		$0.74
Weighted average shares outstanding for basic net income (loss) per share	167,272		176,878		176,426
Weighted average shares outstanding for diluted net income (loss) per share	167,272		176,878		181,195
[1]	The United States and China, individually, accounted for more than 10% of the Company’s revenues in 2013, 2012 and 2011. Net revenues in the United States were $589.6 million, $583.0 million, and $593.6 million for the years ended December 31, 2013, 2012, and 2011, respectively. Net revenues in China were $147.3 million, $159.3 million, and $161.5 million for the years ended December 31, 2013, 2012 and 2011, respectively. During 2013, 2012, and 2011, one customer from the Americas segment, ScanSource Communications, accounted for 16%, 14%, and 14%, respectively, of the Company’s revenues. At December 31, 2013, ScanSource accounted for 11% of total gross accounts receivable and no single customer accounted for more than 10% of gross accounts receivable at December 31, 2012 and 2011.

Consolidated_Statements_Of_Com

Consolidated Statements Of Comprehensive Income (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Net income (loss)	($18,076)	$8,344	$134,836
Other comprehensive income (loss), net of tax:	'	'	'
Foreign currency translation adjustments	1,039	1,339	239
Unrealized gains/(losses) on investments:	'	'	'
Unrealized holding losses arising during the period	18	-30	-17
Net gains/losses reclassified into earnings	53	-7	-28
Net unrealized gains/(losses) on investments	71	-37	-45
Unrealized gains/(losses) on hedging securities:	'	'	'
Unrealized hedge gains/losses arising during the period	1,374	1,018	1,444
Net unrealized gains/(losses) on hedging securities	-934	-2,716	4,304
Other comprehensive income (loss)	176	-1,414	4,498
Comprehensive income (loss)	-17,900	6,930	139,334
Product revenues	'	'	'
Unrealized gains/(losses) on hedging securities:	'	'	'
Net gains/losses reclassified into earnings for hedges	-207	-7,133	7,113
Expense	'	'	'
Unrealized gains/(losses) on hedging securities:	'	'	'
Net gains/losses reclassified into earnings for hedges	($2,101)	$3,399	($4,253)

Consolidated_Statements_Of_Sto

Consolidated Statements Of Stockholders' Equity (USD $)		Total	Common Stock	Additional Paid-In Capital	Accumulated Other Comprehensive Income	Retained Earnings (Accumulated Deficit)
In Thousands, except Share data
Beginning balances at Dec. 31, 2010		$1,174,444	$40	$1,162,201	$1,112	$11,091
Beginning balances, shares at Dec. 31, 2010		'	173,109,892	'	'	'
Net income (loss)		134,836	'	'	'	134,836
Other comprehensive income (loss)		4,498	'	'	4,498	'
Issuance of vested performance shares and restricted stock units (in shares)		'	3,355,830	'	'	'
Exercise of stock options under stock option plan		23,430	'	23,430	'	'
Exercise of stock options under stock option plan, shares		'	1,780,408	'	'	'
Shares purchased under employee stock purchase plan		17,368	'	17,368	'	'
Shares purchased under employee stock purchase plan, shares		'	1,143,614	'	'	'
Purchase and retirement of common stock at cost, including fees and expenses		-64,937	'	-35,771	'	-29,166
Purchase and retirement of common stock at cost, including fees and expenses, shares		'	-3,072,776	'	'	'
Stock-based compensation		65,262	'	65,262	'	'
Tax benefit from stock option activity		13,504	'	13,504	'	'
Issuance of options in connection with acquisition		207	'	207	'	'
Ending balances at Dec. 31, 2011		1,368,612	40	1,246,201	5,610	116,761
Ending balances, shares at Dec. 31, 2011		'	176,316,968	'	'	'
Net income (loss)		8,344	'	'	'	8,344
Other comprehensive income (loss)		-1,414	'	'	-1,414	'
Issuance of vested performance shares and restricted stock units (in shares)		'	2,463,130	'	'	'
Exercise of stock options under stock option plan		4,856	'	4,856	'	'
Exercise of stock options under stock option plan, shares		'	579,712	'	'	'
Shares purchased under employee stock purchase plan		20,976	1	20,975	'	'
Shares purchased under employee stock purchase plan, shares		'	1,867,683	'	'	'
Purchase and retirement of common stock at cost, including fees and expenses		-67,901	-3	-39,897	'	-28,001
Purchase and retirement of common stock at cost, including fees and expenses, shares		'	-5,903,608	'	'	'
Stock-based compensation		89,245	'	89,245	'	'
Tax benefit from stock option activity		5,056	'	5,056	'	'
Ending balances at Dec. 31, 2012		1,427,774	38	1,326,436	4,196	97,104
Ending balances, shares at Dec. 31, 2012		'	175,323,885	'	'	'
Net income (loss)		-18,076	'	'	'	-18,076
Other comprehensive income (loss)		176	'	'	176	'
Issuance of vested performance shares and restricted stock units (in shares)		'	2,828,464	'	'	'
Exercise of stock options under stock option plan		1,786	'	1,786	'	'
Exercise of stock options under stock option plan, shares		282,396	187,682	'	'	'
Shares purchased under employee stock purchase plan		21,540	1	21,539	'	'
Shares purchased under employee stock purchase plan, shares		'	2,904,287	'	'	'
Purchase and retirement of common stock at cost, including fees and expenses		-487,180	-22	-275,782	'	-211,376
Purchase and retirement of common stock at cost, including fees and expenses, shares		'	-46,084,352	'	'	'
Stock-based compensation		64,665	'	64,665	'	'
Common stock repurchase holdback		-27,922	'	-27,922	'	'
Tax expense for stock-based award activity		-6,398	'	-6,398	'	'
Correction of an error in par value	[1]	'	51	-51	'	'
Ending balances at Dec. 31, 2013		$976,365	$68	$1,104,273	$4,372	($132,348)
Ending balances, shares at Dec. 31, 2013		'	135,159,966	'	'	'
[1]	While preparing the financial statements in 2013, we noted an immaterial error in the calculation of par value that required a reclassification between Common Stock and Additional Paid-In Capital.

Consolidated_Statements_of_Cas

Consolidated Statements of Cash Flows (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Cash flows from operating activities:	'	'	'
Net income (loss)	($18,076)	$8,344	$134,836
Adjustments to reconcile net income to net cash provided by operating activities:	'	'	'
Depreciation and amortization	64,779	61,586	52,564
Amortization of purchased intangibles	19,825	20,318	21,742
Amortization of software development costs	196	'	'
Amortization of debt issuance costs	178	'	'
Amortization of discounts and premiums on investments, net	1,816	2,381	2,695
Provision for doubtful accounts	'	1,100	'
Write-down of excess and obsolete inventories	7,390	6,420	8,567
Stock-based compensation	64,465	89,245	65,262
Excess tax benefits from stock-based compensation	-920	-9,297	-13,430
Impairment of private company investments	'	'	79
Loss on disposals of property and equipment	5,859	4,080	1,537
Net gain on sale of discontinued operations	-459	-35,425	'
Tax expense on company reorganization	'	38,836	'
Changes in assets and liabilities, net of the effect of acquisitions and divestiture:	'	'	'
Trade receivables	13,809	16,582	-63,009
Inventories	-10,739	-11,428	2,545
Deferred taxes	-14,332	-15,933	-12,446
Prepaid expenses and other current assets	-637	-7,424	-2,212
Accounts payable	-5,184	-22,901	22,816
Taxes payable	-5,848	5,123	13,496
Other accrued liabilities and deferred revenue	46,320	37,754	67,298
Net cash provided by operating activities	168,442	189,361	302,340
Cash flows from investing activities:	'	'	'
Purchases of property and equipment	-53,042	-67,270	-69,279
Software development costs	-2,165	'	'
Purchases of investments	-228,238	-315,012	-375,262
Proceeds from sale of investments	45,467	52,286	41,461
Proceeds from maturity of investments	237,499	229,211	326,332
Net cash received from sale of discontinued operations	556	50,411	'
Net cash paid in acquisitions	-7,974	-4,583	-163,630
Net cash used in investing activities	-7,897	-54,957	-240,378
Cash flows from financing activities:	'	'	'
Proceeds from issuance of common stock under employee option and stock purchase plans	23,326	25,832	40,798
Proceeds from debt, net of costs	247,349	'	'
Payment on debt	-1,562	'	'
Purchase of common stock, including fees and expenses	-515,022	-67,901	-64,937
Excess tax benefits from stock-based compensation	920	9,297	13,430
Net cash used in financing activities	-244,989	-32,772	-10,709
Net increase (decrease) in cash and cash equivalents	-84,444	101,632	51,253
Cash and cash equivalents, beginning of period	477,073	375,441	324,188
Cash and cash equivalents, end of period	392,629	477,073	375,441
Supplemental disclosures of cash flow information:	'	'	'
Non-cash consideration paid for acquisition	'	'	207
Cash paid for interest	2,847	751	544
Cash paid for income taxes	$9,505	$24,570	$15,947

Description_of_Business_and_Su

Description of Business and Summary of Significant Accounting Policies:	12 Months Ended
	Dec. 31, 2013
Description of Business and Summary of Significant Accounting Policies:	'
	1. Description of Business and Summary of Significant Accounting Policies:
	Description of Business:
	Polycom is a leading global provider of high-quality, easy-to-use communications solutions that enable enterprise, government, education and healthcare customers to more effectively collaborate over distance, time zones and organizational boundaries. Our solutions are built on architectures that enable unified video, voice and content communications.
	Principles of Accounting and Consolidation:
	These Consolidated Financial Statements have been prepared in accordance with accounting principles generally accepted in the United States of America. The Consolidated Financial Statements include the accounts of the Company and its wholly-owned subsidiaries. All significant intercompany balances and transactions have been eliminated.
	Certain prior year service costs have been reclassified among our segments to conform to the current year presentation in order to more appropriately align those costs with the associated revenues. See Note 17.
	Revisions of Prior Period Financial Statements
	During the quarter ended December 31, 2013, the Company discovered an error that impacted the Company’s previously issued interim and annual consolidated statements of cash flows. The error was related to the net amortization of discounts and premiums on investments not being properly reported, which resulted in understatements of cash flows provided by operating activities and cash used in investing activities in the first three quarters of 2013 and full fiscal years 2012 and 2011.
	Additionally, during the quarter ended June 30, 2013, the Company discovered an error that impacted the Company’s previously issued interim and annual consolidated financial statements for the fiscal years ended December 31, 2010 through 2012 and the quarter ended March 31, 2013. The error was related to certain royalty related expenses not being properly allocated between the Company’s U.S. entity and its international subsidiary, which led to an understated income tax provision in fiscal years 2010 through 2012.
	In evaluating whether the Company’s previously issued consolidated financial statements were materially misstated, the Company considered the guidance in ASC Topic 250, Accounting Changes and Error Corrections, ASC Topic 250-10-S99-1, Assessing Materiality, and ASC Topic 250-10-S99-2, Considering the Effects of Prior Year Misstatements when Quantifying Misstatements in Current Year Financial Statements. The Company concluded that these errors were not material to any of the prior reporting periods, and therefore, amendments of previously filed reports are not required. However, if the entire correction was recorded in 2013, the cumulative amount of the income tax provision error would be material in 2013 and, for both the income tax provision error and consolidated statements of cash flows correction, would impact comparisons to prior periods. As such, the revisions for these corrections are reflected in the financial information of the applicable prior periods and will be reflected in future filings containing such financial information.
	The following tables set forth a summary of the revisions to the Consolidated Financial Statements for the periods indicated:
		31-Dec-12											31-Dec-11
		As Previously Reported				Adjustment				As Revised			As Previously Reported			Adjustment			As Revised
	Consolidated Balance Sheets and Statements of Stockholders’ Equity
	Prepaid expenses and other current assets	$	55,454			$	(2,915	)		$	52,539		$	51,241		$	(1,504	)	$	49,737
	Total current assets	$	1,073,253			$	(2,915	)		$	1,070,338		$	994,408		$	(1,504	)	$	992,904
	Total assets	$	1,915,351			$	(2,915	)		$	1,912,436		$	1,844,805		$	(1,504	)	$	1,843,301
	Retained earnings	$	100,019			$	(2,915	)		$	97,104		$	118,265		$	(1,504	)	$	116,761
	Total stockholders’ equity	$	1,430,689			$	(2,915	)		$	1,427,774		$	1,370,116		$	(1,504	)	$	1,368,612
	Total liabilities and stockholders’ equity	$	1,915,351			$	(2,915	)		$	1,912,436		$	1,844,805		$	(1,504	)	$	1,843,301
		Year Ended December 31, 2012											Year Ended December 31, 2011
		As Previously Reported				Adjustment				As Revised			As Previously Reported			Adjustment			As Revised
	Consolidated Statements of Operations
	Provision for income taxes for continuing operations	$	38,056			$	1,411			$	39,467		$	5,246		$	978		$	6,224
	Net income (loss) from continuing operations	$	(35,558	)		$	(1,411	)		$	(36,969	)	$	125,908		$	(978	)	$	124,930
	Net income	$	9,755			$	(1,411	)		$	8,344		$	135,814		$	(978	)	$	134,836
	Basic Net Income (loss) Per Share:
	Net income (loss) per share from continuing operations	$	(0.20	)		$	(0.01	)		$	(0.21	)	$	0.71		$	(0.00	)	$	0.71
	Basic net income per share	$	0.06			$	(0.01	)		$	0.05		$	0.77		$	(0.01	)	$	0.76
	Diluted net income (loss) per share:
	Net income (loss) per share from continuing operations	$	(0.20	)		$	(0.01	)		$	(0.21	)	$	0.69		$	(0.00	)	$	0.69
	Diluted net income per share	$	0.06			$	(0.01	)		$	0.05		$	0.75		$	(0.01	)	$	0.74
	Consolidated Statements of Comprehensive Income
	Net income	$	9,755			$	(1,411	)		$	8,344		$	135,814		$	(978	)	$	134,836
	Comprehensive income	$	8,341			$	(1,411	)		$	6,930		$	140,312		$	(978	)	$	139,334
	Consolidated Statements of Cash Flows
	Operating activities
	Net income	$	9,755			$	(1,411	)		$	8,344		$	135,814		$	(978	)	$	134,836
	Changes in prepaid expenses and other current assets	$	(8,835	)		$	1,411			$	(7,424	)	$	(3,190	)	$	978		$	(2,212	)
	Amortization of discounts and premiums on investments, net	$	—			$	2,381			$	2,381		$	—		$	2,695		$	2,695
	Net cash provided by operating activities	$	186,980			$	2,381			$	189,361		$	299,645		$	2,695		$	302,340
	Investing activities
	Purchases of investments	$	(312,631	)		$	(2,381	)		$	(315,012	)	$	(372,567	)	$	(2,695	)	$	(375,262	)
	Net cash used in investing activities	$	(52,576	)		$	(2,381	)		$	(54,957	)	$	(237,683	)	$	(2,695	)	$	(240,378	)
	Use of Estimates:
	The preparation of financial statements in conformity with accounting principles generally accepted in the United States of America requires management to make estimates and assumptions that affect the amounts reported in the Company’s financial statements and accompanying notes. Actual results could differ from those estimates.
	Cash and Cash Equivalents:
	The Company considers all highly liquid investments with original maturities of three months or less at the time of purchase to be cash equivalents.
	Allowance for Doubtful Accounts:
	The Company maintains an allowance for doubtful accounts for estimated losses resulting from the inability of the Company’s customers to make required payments. The Company reviews its allowance for doubtful accounts quarterly by assessing individual accounts receivable over a specific aging and amount, and all other balances on a pooled basis based on historical collection experience. If the financial conditions of the Company’s customers were to deteriorate, adversely affecting their abilities to make payments, additional allowances would be required. Delinquent account balances are written off after management has determined that the likelihood of collection is remote.
	Investments:
	The Company’s short-term and long-term investments as of December 31, 2013 are comprised of U.S. and non-U.S. government securities, U.S. agency securities and corporate debt securities. Investments are classified as short-term or long-term based on their remaining maturities. All investments are held in the Company’s name at a limited number of major financial institutions. At December 31, 2013 and 2012, all of the Company’s investments were classified as available-for-sale and were carried at fair value based on quoted market prices, broker or dealer quotations, or alternative pricing sources with reasonable levels of price transparency at the end of the reporting period. Unrealized gains and losses are recorded as a separate component of accumulated other comprehensive income in the Consolidated Statements of Stockholders’ Equity. If these investments are sold at a loss or are considered to have other than temporarily declined in value, a charge against earnings is recorded. The specific identification method is used to determine the cost of securities disposed of, with realized gains and losses reflected in interest and other income (expense), net.
	For strategic reasons, the Company has made various investments in private companies. The private company investments are carried at cost and written down to estimated market value when indications exist that these investments have other than temporarily declined in value. The Company reviews these investments for impairment when events or changes in circumstances indicate that impairment may exist and makes appropriate reductions in carrying value, if necessary. The Company evaluates a number of factors, including price per share of any recent financing, expected timing of additional financing, liquidation preferences, historical and forecasted earnings and cash flows, cash burn rate, and technological feasibility of the investee company’s products to assess whether or not the investment is potentially impaired.
	Inventories:
	Inventories are valued at the lower of cost or market with cost computed on a first-in, first-out (FIFO) basis. Consideration is given to obsolescence, excessive levels, deterioration and other factors in evaluating net realizable value. The Company records write-downs for excess and obsolete inventory equal to the difference between the carrying value of inventory and the estimated future selling price based upon assumptions about future product life-cycles, product demand and market conditions. At the point of the loss recognition, a new, lower-cost basis for that inventory is established, and subsequent changes in facts and circumstances do not result in the restoration or increase in that newly established cost basis.
	Property and Equipment:
	Property and equipment are stated at cost less accumulated depreciation and amortization. Depreciation is provided using the straight-line method over the estimated useful lives of the assets. Estimated useful lives are one to thirteen years. Amortization of leasehold improvements is computed using the straight-line method over the shorter of the remaining lease term or the estimated useful lives of the related assets, typically three to thirteen years. Disposals of capital equipment are recorded by removing the costs and accumulated depreciation from the accounts and gains or losses on disposals are included in the results of operations.
	Goodwill:
	Goodwill is not amortized but is regularly reviewed for potential impairment. In September 2011, the FASB issued authoritative guidance on goodwill impairment testing which provides entities an option to perform a qualitative assessment to determine whether further impairment testing is necessary. The Company elected to early adopt this guidance in 2011, and such adoption did not have an impact to the Company’s Consolidated Financial Statements. The identification and measurement of goodwill impairment involves the estimation of the fair value of the Company’s reporting units. The estimated fair value of reporting units is based on the best information available as of the date of the assessment, which primarily incorporates management assumptions about expected future cash flows. Future cash flows can be affected by changes in industry or market conditions or the rate and extent to which anticipated synergies or cost savings are realized with newly acquired entities.
	Impairment of Long-Lived Assets:
	Purchased intangible assets with finite lives are amortized using the straight-line method over the estimated economic lives of the assets, which range from several months to six years. Purchased intangible assets determined to have indefinite useful lives are not amortized. Long-lived assets, including intangible assets, are reviewed for impairment whenever events or changes in circumstances indicate that the carrying amount of such assets may not be recoverable. Determination of recoverability is based on an estimate of undiscounted future cash flows resulting from the use of the asset or group of assets and their eventual disposition. The Company periodically assesses the remaining useful lives of long-lived assets. Measurement of an impairment loss for long-lived assets that management expects to hold and use is based on the estimated fair value of the asset. Long-lived assets to be disposed of are reported at the lower of carrying amount or estimated fair value less costs to sell.
	Guarantees:
	Warranty
The Company provides for the estimated costs of product warranties at the time revenue is recognized. The specific terms and conditions of those warranties vary depending upon the product sold. In the case of hardware manufactured by the Company, warranties generally start from the delivery date and continue for one year. Software products generally carry a 90-day warranty from the date of purchase. The Company’s liability under warranties on software products is to provide a corrected copy of any portion of the software found not to be in substantial compliance with the agreed upon specifications. Factors that affect the Company’s warranty obligation include product failure rates, material usage and service delivery costs incurred in correcting product failures. The Company assesses the adequacy of the recorded warranty liabilities every quarter and makes adjustments to the liability if necessary.
Changes in the warranty obligation during the period, which is included as a component of “Other accrued liabilities” on the Consolidated Balance Sheets, are as follows (in thousands):
		December 31,
		2013				2012
Balance at beginning of year		$	10,475			$	10,577
Accruals for warranties issued during the year			16,307				18,432
Actual charges against warranty reserve during the year			(17,307	)			(18,534	)
Balance at end of year		$	9,475			$	10,475
Deferred Services Revenue
The Company offers maintenance contracts for sale on most of its products which allow for customers to receive service and support in addition to, or subsequent to, the expiration of the contractual product warranty. The Company also provides managed services to its customers under contractual arrangements. The Company recognizes the maintenance and managed services revenue from these contracts over the life of the service contract.
Deferred services revenue, of which $170.7 million and $156.5 million is short-term and is included as a component of deferred revenue as of December 31, 2013 and 2012, respectively; and $83.1 million and $85.3 million is long-term and is included as a component of long-term deferred revenue as of December 31, 2013 and 2012, respectively, on the Consolidated Balance Sheets. Changes during the period are as follows (in thousands):
		December 31,
		2013				2012
Balance at beginning of year		$	241,773			$	212,178
Addition to deferred services revenue			354,893				349,022
Amortization of deferred services revenue			(342,873	)			(319,427	)
Balance at end of year		$	253,793			$	241,773
The cost of providing these services for the years ended December 31, 2013, 2012, and 2011 was $148.1 million, $137.8 million, and $98.4 million, respectively.
Officer and Director Indemnifications
As permitted or required under Delaware law and to the maximum extent allowable under that law, the Company has certain obligations to indemnify its current and former officers and directors for certain events or occurrences while the officer or director is, or was serving, at the Company’s request in such capacity. The maximum potential amount of future payments the Company could be required to make under these indemnification obligations is unlimited; however, the Company has a director and officer insurance policy that mitigates the Company’s exposure and enables the Company to recover a portion of any future amounts paid. As a result of the Company’s insurance policy coverage, the Company believes the estimated fair value of these indemnification obligations is not material.
Other Indemnifications
As is customary in the Company’s industry, as provided for in local law in the U.S. and other jurisdictions, the Company’s standard contracts provide remedies to its customers, such as defense, settlement, or payment of judgment for intellectual property claims related to the use of its products. From time to time, the Company indemnifies customers against combinations of loss, expense, or liability arising from various trigger events related to the sale and the use of its products and services. In addition, from time to time the Company also provides protection to customers against claims related to undiscovered liabilities, additional product liabilities or environmental obligations.
Revenue Recognition:
The Company recognizes revenue when persuasive evidence of an arrangement exists, title and risk of loss have transferred, product payment is not contingent upon performance of installation or service obligations, the price is fixed or determinable, and collectability is reasonably assured. In instances where final acceptance of the product or service is specified by the customer, revenue is deferred until all acceptance criteria have been met. Additionally, the Company recognizes maintenance service revenues on its hardware and software products ratably over the service periods of one to five years, and other services upon the completion of installation or professional services provided.
Most of the Company’s products are integrated with software that is essential to the functionality of the equipment. Additionally, the Company provides unspecified software upgrades and enhancements related to most of these products through maintenance contracts.
A multiple-element arrangement includes the sale of one or more tangible product offerings with one or more associated services offerings, each of which are individually considered separate units of accounting. The Company allocates revenue to each element in a multiple-element arrangement based upon the relative selling price of each deliverable. When applying the relative selling price method, the Company determines the selling price for each deliverable using vendor specific objective evidence (“VSOE”) of selling price, if it exists, or third party evidence (“TPE”) of selling price. If neither VSOE nor TPE of selling price exist for a deliverable, the Company uses its best estimate of selling price (“ESP”) for that deliverable. Revenue allocated to each element is then recognized when the other revenue recognition criteria are met for each element.
VSOE is established based on the Company’s standard pricing and discounting practices for the specific product or service when sold separately. In determining VSOE, the Company requires that a substantial majority of the selling prices for a product or service fall within a reasonably narrow pricing range.
When VSOE cannot be established, the Company attempts to establish the selling price of each element based on TPE. TPE is determined based on competitor prices for similar deliverables when sold separately.
When the Company is unable to establish the selling price using VSOE or TPE, the Company uses ESP in its allocation of arrangement consideration. ESP represents the price at which the Company would transact a sale if the element were sold on a stand-alone basis. The Company determines ESP for a product by considering multiple factors including, but not limited to, geographies, market conditions, competitive landscape, and pricing practices. The determination of ESP is made based on review of historical sales price, taking into consideration the Company’s go-to-market strategy. Generally, the Company uses historical net selling prices to establish ESP. The Company regularly reviews its basis for establishing VSOE, TPE and ESP.
Sales Returns, Channel Partner Programs and Incentives
The Company records estimated reductions to revenues for channel partner programs and incentive offerings including special pricing agreements, promotions and other volume-based incentives. The Company also accrues for co-op marketing funds as a marketing expense if the Company receives an identifiable benefit in exchange and can reasonably estimate the fair value of the identifiable benefit received; otherwise, it is recorded as a reduction to revenues. The Company’s contracts generally do not provide for a right of return on any of our products. However, a limited number of contracts contain stock rotation rights. The Company records an estimate of future returns based upon these contractual rights and its historical returns experience.
Research and Development Expenditures and Software Development Costs
Research and development expenditures are charged to operations as incurred and consist primarily of compensation costs, including stock-based compensation, outside services, expensed materials, depreciation and an allocation of overhead expenses, including facilities and IT costs.
Software development costs incurred prior to the establishment of technological feasibility are included in research and development expenses as incurred. Eligible and material software development costs are capitalized upon the establishment of technological feasibility and before the general availability of such software products, including direct labor and related overhead costs, as well as stock-based compensation. The Company has defined technological feasibility as the establishment of a working model, which typically occurs when beta testing commences. In 2013, the Company capitalized approximately $2.4 million of development costs for software products to be marketed or sold to customers. There were no such costs capitalized in 2012 and 2011 as the software development costs qualifying for capitalization were insignificant. The capitalized costs are being amortized on a product-by-product basis using the straight-line method over the estimated product life, generally three years, or on the ratio of current revenues to total projected product revenues, whichever is greater. Management believes that the capitalized software costs will be recoverable from future gross profits generated by these products.
Advertising:
The Company expenses the production costs of advertising as expenses are incurred. The production costs of advertising consist primarily of trade shows, online media, magazine and radio advertisements, agency fees and other direct production costs. Advertising expense for the years ended December 31, 2013, 2012, and 2011 was $14.9 million, $22.3 million, and $21.3 million, respectively.
Income Taxes:
The Company accounts for income taxes under the liability method, which recognizes deferred tax assets and liabilities based on the difference between the financial statement and tax basis of assets and liabilities using enacted tax rates in effect for the year in which the differences are expected to affect taxable income. Valuation allowances are established to reduce deferred tax assets when, based on available objective evidence, it is more likely than not that the benefit of such assets will not be realized.
The Company recognizes and measures benefits for uncertain tax positions using a two-step approach. The first step is to evaluate the tax position taken or expected to be taken in a tax return by determining if the weight of available evidence indicates that it is more likely than not that the tax position will be sustained upon audit, including resolution of any related appeals or litigation processes. For tax positions that are more likely than not to be sustained upon audit, the second step is to measure the tax benefit as the largest amount that is more than 50% likely to be realized upon settlement. Significant judgment is required to evaluate uncertain tax positions. The Company evaluates its uncertain tax positions on a quarterly basis. Evaluations are based upon a number of factors, including changes in facts or circumstances, changes in tax law, correspondence with tax authorities during the course of audits and effective settlement of audit issues. Changes in the recognition or measurement of uncertain tax positions could result in material increases or decreases in income tax expense in the period in which the change is made, which could have a material impact on the Company’s effective tax rate and operating results. The Company recognizes interest and/or penalties related to income tax matters in income tax expense.
Foreign Currency Translation:
Assets and liabilities of non-U.S subsidiaries, where that local currency is the functional currency, are translated to U.S. dollars at exchange rates in effect at the balance sheet date and income and expense accounts are translated at average exchange rates in effect during the period. The resulting translation adjustments are directly recorded to a separate component of accumulated other comprehensive income. Foreign exchange transaction gains and losses from the remeasurement of non-functional currency denominated assets and liabilities have not been significant to date and are included in the Company’s Consolidated Statements of Operations as part of interest and other income (expense), net.
As a result of the sale of the Company’s former enterprise wireless voice solutions (the “EWS”) business in December 2012 (see Note 3), which included a wholly owned Danish subsidiary with a Danish Krone functional currency, the Company recognized its associated currency translation adjustment balance of $1.1 million which effectively reduced the gain from sale of the discontinued operations.
The following table sets forth the change of foreign currency translation adjustments during each reporting period and the balances as of December 31 (in thousands):
		2013				2012				2011
Beginning balance		$	3,180			$	1,841			$	1,602
Foreign currency translation adjustments			1,039				1,339				239
Ending balance		$	4,219			$	3,180			$	1,841
Derivative Instruments:
The accounting for changes in the fair value of a derivative depends on the intended use of the derivative and the resulting designation. For a derivative instrument designated and qualifying as a cash flow hedge, the effective portion of the derivative’s gain or loss is initially reported as a separate component of accumulated other comprehensive income and is subsequently reclassified into earnings when the hedged exposure affects earnings. The excluded and ineffective portions of the gain or loss are reported in earnings immediately. For derivative instruments that are not designated as cash flow hedges, changes in fair value are recognized in earnings in the period of change. The Company does not hold or issue derivative financial instruments for speculative trading purposes. The Company enters into derivatives only with counterparties that are among the largest U.S. banks, ranked by assets, in order to minimize its credit risk.
Net Income Per Share:
Basic net income per share is computed by dividing net income by the weighted average number of common shares outstanding for the period. Diluted net income per share reflects the additional dilution from potential issuance of common stock, such as stock issuable pursuant to the exercise of stock options, unvested restricted stock units, and performance shares. Potentially dilutive shares are excluded from the computation of diluted net income per share when their effect is antidilutive.
On June 1, 2011, the Company announced that its Board of Directors approved a two-for-one stock split of the Company’s outstanding shares of common stock effected in the form of a 100% stock dividend (“the stock split”). The stock split entitled each stockholder of record at the close of business on June 15, 2011 to receive one additional share of common stock for every one share of common stock owned as of that date, payable by the Company’s transfer agent on July 1, 2011. The par value of the Company’s common stock was maintained at the pre-split amount of $0.0005 per share. The Consolidated Financial Statements and notes thereto, including all share and per share data, have been restated as if the stock split had occurred as of the earliest period presented.
Fair Value Measurements:
The Company has certain financial assets and liabilities recorded at fair value which have been classified as Level 1, 2 or 3 within the fair value hierarchy. Fair values determined by Level 1 inputs utilize quoted prices (unadjusted) in active markets for identical assets or liabilities that the Company has the ability to access. Fair values determined by Level 2 inputs utilize data points that are observable such as quoted prices for similar assets in active markets, or identical or similar assets in inactive markets, interest rates and yield curves. Fair values determined by Level 3 inputs utilize unobservable data points for the asset or liability.
The carrying amounts reflected in the Consolidated Balance Sheets for cash and cash equivalents, accounts receivable, accounts payable, and other accrued liabilities approximate fair value due to their short-term maturities.
Stock-Based Compensation:
The Company’s stock-based compensation programs consist of grants of stock-based awards to employees and non-employee directors, including stock options, restricted stock units and performance shares, as well as purchase rights pursuant to the Company’s Employee Stock Purchase Plan (“ESPP”). The estimated fair value of these awards is charged against income over the requisite service period, which is generally the vesting period.
The fair value of stock option and ESPP awards is estimated at the grant date using the Black-Scholes option valuation model. The fair value of restricted stock units is based on the market value of the Company’s common stock on the date of grant. Compensation expense for restricted stock units, including the effect of forfeitures, is recognized over the applicable service period. The fair value of performance shares is based on the market price of the Company’s stock on the date of grant and assumes that the performance criteria will be met and the target payout level will be achieved. Compensation cost is adjusted for subsequent changes in the outcome of performance-related conditions until the award vests. The fair value of a performance share with a market condition is estimated on the date of award, using a Monte Carlo simulation model to estimate the total return ranking of the Company’s stock in relation to the target index of companies over each performance period. Compensation cost on performance shares with a market condition is not adjusted for subsequent changes regardless of the level of ultimate vesting.
Business Combinations:
The Company recognizes separately from goodwill the fair value of assets acquired and the liabilities assumed. Goodwill as of the acquisition date is measured as the excess of consideration transferred and the net of the acquisition date fair values of the assets acquired and the liabilities assumed. While the Company uses its best estimates and assumptions as a part of the purchase price allocation process to value assets acquired and liabilities assumed at the acquisition date, the Company’s estimates are inherently uncertain and subject to refinement. As a result, during the measurement period, which may be up to one year from the acquisition date, the Company may record adjustments retrospectively to the fair value of assets acquired and liabilities assumed, with the corresponding offset to goodwill. Upon the conclusion of the measurement period or final determination of the fair value of assets acquired or liabilities assumed, whichever comes first, any subsequent adjustments are recorded to the Company’s consolidated statements of operations.
In addition, uncertain tax positions and tax-related valuation allowances assumed in connection with a business combination are initially estimated as of the acquisition date. The Company reevaluates these items quarterly and records any adjustments to the Company’s preliminary estimates to goodwill provided that the Company is within the measurement period and the Company continues to collect information in order to determine their estimated fair values as of the date of acquisition. Subsequent to the measurement period or the Company’s final determination of the tax allowance’s estimated value, changes to these uncertain tax positions and tax related valuation allowances will affect the Company’s provision for income taxes in the Company’s consolidated statements of operations.
Recent Pronouncements:
In July 2013, the Financial Accounting Standards Board (“FASB”) issued an accounting standard update which clarifies that an unrecognized tax benefit should be presented in the financial statements as a reduction to a deferred tax asset for a net operating loss carryforward, a similar tax loss, or a tax credit carryforward if such settlement is required or expected in the event the uncertain tax position is disallowed. In situations where a net operating loss carryforward, a similar tax loss, or a tax credit carryforward is not available at the reporting date under the tax law of the applicable jurisdiction or the tax law of the jurisdiction does not require, and the entity does not intend to use the deferred tax asset for such purpose, the unrecognized tax benefit should be presented in the financial statements as a liability and should not be combined with deferred tax assets. The guidance will be effective prospectively for reporting periods beginning after December 15, 2013. The Company is currently assessing the potential impact on the adoption of this guidance on its consolidated financial statements.
In March 2013, the FASB issued an accounting standard update which requires the release of cumulative translation adjustments into net income when an entity ceases to have a controlling financial interest resulting in the complete or substantially complete liquidation of a subsidiary or group of assets within a foreign entity. The guidance will be effective prospectively for reporting periods beginning after December 15, 2013. The Company does not expect any material impact on the adoption of this guidance on its consolidated financial statements.
In February 2013, the FASB issued an accounting standard update that requires an entity to expand the disclosure of reclassifications out of accumulated other comprehensive income (“AOCI”). The update requires companies to present reclassifications by component when reporting changes in AOCI balances and to report the effect of significant reclassifications on the respective line items in net income. The guidance is effective prospectively for reporting periods beginning after December 15, 2012. The Company adopted the guidance in the quarter ended March 31, 2013, and such adoption did not have a material impact on its consolidated financial statements.
In December 2011, the FASB issued an accounting standard update that requires disclosure of the effect or potential effect of offsetting arrangements on a company’s financial position, as well as enhanced disclosure of the rights of setoff associated with a company’s recognized assets and liabilities. In January 2013, the FASB issued another accounting standard update to clarify the scope of the standard issued in December 2011. The Company adopted the guidance in the quarter ended March 31, 2013, and such adoption did not have a material impact on its consolidated financial statements.

Business_Combinations

Business Combinations	12 Months Ended
	Dec. 31, 2013
Business Combinations	'
	2. Business Combinations:
	2013 Acquisition
	On March 1, 2013 the Company completed its acquisition of certain assets of Sentri, Inc. (“Sentri”), a privately-held services company with expertise in Microsoft technologies, for approximately $8.0 million in cash, net of approximately $0.4 million cash released from an escrow account as a result of a net working capital adjustment. The acquisition expands the Company’s advanced services offerings with an emphasis on multi-vendor unified communications solutions that can encompass video, voice, data, and networking. The total purchase price was allocated to the net tangible and intangible assets based upon their fair values at March 1, 2013 with the excess amount recorded as goodwill, which is primarily attributable to the expertise of former Sentri employees in Microsoft technologies and expected synergies from the combined company.
	2011 Acquisitions
	During 2011, the Company completed three business combinations. On March 21, 2011, the Company completed the acquisition of all of the outstanding shares of Accordent Technologies, Inc. (“Accordent”), a privately-held video content management and delivery solutions company. On July 27, 2011, the Company acquired the assets of the Hewlett-Packard Visual Collaboration (“HPVC”) business, including the Halo Products and Managed Services business. In May 2012, the Company completed the purchase of certain additional equipment from HP Financing Services for approximately $5.0 million that was agreed to in conjunction with the HPVC acquisition. On October 14, 2011, the Company acquired ViVu, Inc. (“ViVu”), a privately-held video collaboration software company. The total net cash paid in 2011 for these business combinations was $163.6 million, plus non-cash consideration of $0.2 million.
	The following table summarizes the allocation of the total purchase consideration to the assets and liabilities assumed in 2011 as of the acquisition dates (in thousands):
	Tangible assets:
	Current assets	$	8,204
	Property and equipment		2,990
	Long-term assets		1,257
	Total tangible assets acquired		12,451
	Liabilities:
	Current liabilities		(7,786	)
	Long-term liabilities		(4,362	)
	Total liabilities assumed		(12,148	)
	Fair value of net assets acquired		303
	Intangible assets consisting of:
	Core and developed technology		20,600
	Customer and partner relationships		50,100
	Trade name		1,400
	In-Process Research and Development (“IPR&D”)		1,400
	Other		500
	Deferred tax liability		(1,625	)
	Goodwill		91,159
	Total consideration	$	163,837
	The Company has included the financial results of Sentri, Accordent, HPVC and ViVu in its Consolidated Financial Statements from their respective dates of acquisition. Pro forma results of operations for the acquisitions completed during the years have not been presented because the effects of those acquisitions, individually and in the aggregate, were not material to the Company’s financial results.
	The goodwill generated from those acquisitions is primarily attributable to expected synergies. Goodwill from the Sentri and HPVC acquisitions is deductible for tax purposes and goodwill from the Accordent and ViVu acquisitions is not deductible for tax purposes. The fair values of intangible assets were calculated based on the income and cost approaches and are being amortized over eight months to six years. The transaction-related costs were expensed as incurred.

Discontinued_Operations

Discontinued Operations	12 Months Ended
	Dec. 31, 2013
Discontinued Operations	'
	3. Discontinued Operations:
	On December 4, 2012, the Company completed the disposition of the net assets of its EWS business to Mobile Devices Holdings, LLC, a Delaware limited liability corporation. The Company received cash consideration of approximately $50.7 million, resulting in a gain on sale of the discontinued operations, net of taxes, of $35.4 million, as reflected in its Consolidated Financial Statements for the year ended December 31, 2012. In 2013, the Company recorded an additional gain on sale of discontinued operations, net of taxes, of approximately $0.5 million as a result of the final net working capital adjustment in accordance with the purchase agreement. Additional cash consideration of up to $57.0 million is payable over the next four years subject to certain conditions, including meeting certain agreed-upon EBITDA-based milestones. Such additional cash consideration will be accounted for as a gain on sale of discontinued operations, net of taxes, when it is realized or realizable. In accordance with accounting guidance, the Company has included the results of operations of EWS in discontinued operations within the consolidated statements of operations for all periods presented.
	Summarized results from discontinued operations were as follows (in thousands):
		Year ended December 31,
		2013			2012		2011
	Revenues	$	—		$	71,133	$	93,609
	Income from discontinued operations		—			15,973		16,066
	Income tax provision		—			6,085		6,160
	Net income from discontinued operations	$	—		$	9,888	$	9,906
	The carrying amounts of the net assets sold at December 4, 2012 were as follows (in thousands):
	Assets:
	Cash and cash equivalents	$	248
	Trade receivables, net		7,221
	Inventories		12,659
	Deferred taxes		(306	)
	Prepaid expenses and other assets		295
	Property and equipment, net		4,301
	Goodwill		30,872
	Purchased intangibles, net		5,724
	Assets sold	$	61,014
	Liabilities:
	Accounts payable	$	2,318
	Accrued payroll and related liabilities		1,877
	Deferred revenue		5,044
	Other accrued liabilities		1,605
	Deferred taxes		1,610
	Liabilities transferred	$	12,454
	Net assets sold	$	48,560
	The Company recorded a gain of $35.4 million in 2012 on the sale of discontinued operations (net of taxes) which was calculated as follows (in thousands):
	Cash proceeds received	$	50,659
	Less: costs incurred directly attributable to the transaction		929
	Net proceeds from sale of discontinued operations		49,730
	Less: book value of net assets sold		48,560
	Less: realization of foreign currency translation adjustment upon sale of foreign EWS subsidiary		1,141
	Gain from sale of discontinued operations		29
	Income tax benefit		(35,396	)
	Net gain from sale of discontinued operations	$	35,425
	In 2013, the Company recorded an additional gain on sale of discontinued operations, net of taxes, of $0.5 million as a result of the final net working capital adjustment. See Note 15 of Notes to Consolidated Financial Statements for discussion of income tax benefit on gain from sale of discontinued operations.

Accounts_Receivable_Financing

Accounts Receivable Financing	12 Months Ended
	Dec. 31, 2013
Accounts Receivable Financing	'
	4. Accounts Receivable Financing
	In 2012, the Company launched a customer financing program and entered into a financing agreement (the “Financing Agreement”) with an unrelated third party financing company. The program offers channel partners, distributors, and resellers direct or indirect financing on their purchases of the Company’s products and services. Pursuant to the terms of the Financing Agreement, the Company transfers accounts receivable from these customers, without recourse, to the financing company. In return, the Company agrees to pay the financing company a fee based on a pre-defined percentage of the transaction amount financed. If the transaction meets the applicable criteria under ASC 860 and is accounted for as a sale of financial assets, the accounts receivable are excluded from the balance sheet upon the third party financing company’s payment remittance to the Company. In certain legal jurisdictions, the arrangement fees that involve maintenance services or products bundled with maintenance at one price do not qualify as a sale of financial assets in accordance with the authoritative guidance. Accordingly, accounts receivable related to these arrangements are accounted for as a secured borrowing in accordance with ASC 860, and the Company records a liability for any cash received, while maintaining the associated accounts receivable balance until the end-customer remits payment to the third-party financing company.
	In 2013 and 2012, total transactions entered pursuant to the terms of the Financing Agreement were approximately $123.4 million and $28.3 million, respectively, of which $109.4 million and $22.9 million, respectively, are related to the sale of the financial assets arrangement. The financing of these receivables accelerated the collection of the Company’s cash and reduced its credit exposure. The amount due from the financing company as of December 31, 2013 and 2012 was approximately $22.9 million and $15.4 million, respectively, of which $21.6 million and $12.4 million, respectively, was related to the accounts receivable sold, and is included in trade receivables in the Company’s Consolidated Balance Sheets. Fees incurred pursuant to the Financing Agreement were approximately $1.8 million and $0.4 million for the year ended December 31, 2013 and 2012, respectively, and were recorded as a reduction to revenues.

Goodwill_Purchased_Intangibles

Goodwill, Purchased Intangibles, and Software Development Costs	12 Months Ended
	Dec. 31, 2013
Goodwill, Purchased Intangibles, and Software Development Costs	'
	5. Goodwill, Purchased Intangibles, and Software Development Costs:
	Goodwill is tested for impairment at the reporting unit level, which is one level below or the same as an operating segment. The Company adopted the amended accounting guidance, which permits the Company to choose to first assess qualitative factors to determine whether it is more likely than not that the fair value of a reporting unit is less than its carrying amount. If based on this assessment the Company determines it is not more likely than not that the fair value of the reporting unit is less than its carrying amount, then performing the two-step impairment test is unnecessary.
	Polycom’s business is organized around four major geographic theaters: North America, Caribbean and Latin America (“CALA”), Europe, Middle East and Africa (“EMEA”) and Asia Pacific (“APAC”), which are considered its reporting units. In the fourth quarter of 2013 and 2012, the Company completed its annual goodwill impairment test of its four reporting units, and no impairment charge was required in 2013 and 2012.
	In 2013, the Company determined, based on its qualitative assessment, that further testing was necessary and performed a two-step goodwill impairment test to assess if a potential impairment had occurred and to measure an impairment loss, if any. The first step of the two-step test compares a reporting unit’s fair value to its carrying amount. The fair value was determined using an income approach and a market approach, each of which was weighted equally. Under the income approach, the fair value of an asset is based on the value of the estimated cash flows that the asset can be expected to generate in the future. These estimated future cash flows were discounted at rates ranging from 12 to 14 percent to arrive at their respective fair values. Under the market approach, the fair value of the unit is based on an analysis of financial data for publicly traded companies engaged in the same or similar lines of business. The carrying amount of each reporting unit was determined by assigning assets and liabilities, including goodwill, to each reporting unit. Based on the first step test, the estimated fair value of each reporting unit exceeded their respective carrying amount by more than 30%. Therefore, the second step of the two-step goodwill impairment test was not deemed necessary. Based on the Company’s most recent goodwill impairment assessment of the reporting units of its segments and the understanding of currently projected trends of the business and the economy, management does not believe that there is a significant risk of impairment for these reporting units for a reasonable period of time. Although the analysis regarding the fair values of goodwill indicates that it exceeded its carrying value, materially different assumptions regarding the future performance of the Company’s businesses or significant declines in the Company’s stock price could result in goodwill impairment losses in the future.
	In 2012, the Company performed the qualitative assessment of its four reporting units. Each reporting unit had an estimated fair value in excess of its carrying value by more than 50%, based on a valuation of the Company’s reporting segments performed in May 2012 in connection with the announcement of the divestiture of its EWS business. For each reporting unit, the Company weighed the relative impact of factors that are specific to the reporting unit, as well as industry and macroeconomic factors. The reporting unit specific factors that were considered included the results of the most recent impairment tests, as well as financial performance and changes to the reporting units’ carrying amounts since the most recent impairment tests. For the industry in which the reporting units operate, the Company considered growth projections from independent sources and significant developments or transactions within the industry during 2012, where applicable. The Company concluded that each of the reporting unit specific and industry factors had either a positive or neutral impact on the fair value of each of the reporting units. The Company also determined that macroeconomic factors during 2012 did not have a significant impact on the discount rates and growth rates used for the valuation performed.
	The following table sets forth the changes in carrying amount of goodwill in each of the Company’s segments in 2013 (in thousands):
		Segments
		Americas		EMEA			APAC		Total
	Balance at December 31, 2012	$	302,768	$	101,882		$	149,169	$	553,819
	Add: goodwill resulting from an acquisition		5,391		—			—		5,391
	Foreign currency translation		—		—			250		250
	Balance at December 31, 2013	$	308,159	$	101,882		$	149,419	$	559,460
	The following table sets forth details of the Company’s total purchased intangible assets and capitalized software development costs as of the following period (in thousands):
		December 31, 2013							December 31, 2012
	Purchased Intangible Assets	Gross		Accumulated			Net Value		Gross		Accumulated			Net Value
		Value		Amortization					Value		Amortization
				and Impairment							and Impairment
	Core and developed technology	$	81,178	$	(76,952	)	$	4,226	$	81,178	$	(67,514	)	$	13,664
	Customer and partner relationships		79,525		(48,941	)		30,584		79,025		(39,578	)		39,447
	Non-compete agreements		1,800		(500	)		1,300		—		—			—
	Trade name		3,400		(3,089	)		311		3,400		(2,746	)		654
	Other		4,462		(4,343	)		119		4,462		(4,162	)		300
	Finite-lived intangible assets		170,365		(133,825	)		36,540		168,065		(114,000	)		54,065
	Indefinite-lived trade name		918		—			918		918		—			918
	Total intangible assets	$	171,283	$	(133,825	)	$	37,458	$	168,983	$	(114,000	)	$	54,983
	Software development costs	$	2,365		(196	)		2,169	$	—	$	—		$	—
	In 2013, 2012, and 2011, the Company recorded amortization expense related to purchased intangibles of $10.4 million, $9.8 million, and $5.5 million, respectively, which is included in “Amortization of purchased intangibles” in the Consolidated Statements of Operation, and recorded approximately $9.4 million, $7.6 million, and $5.7 million, respectively, of amortization of purchased intangibles to “Cost of Product Revenues” in the Consolidated Statements of Operations. Amortization of intangibles is not allocated to the Company’s segments.
	The Company determined that a purchased trade name intangible of $0.9 million had an indefinite life as the Company expects to generate cash flows related to this asset indefinitely. Consequently, this trade name is not amortized but is reviewed for impairment annually or sooner when indicators of potential impairment exist. Development on products associated with in-process research and development (“IPR&D”) previously capitalized was completed in 2012 and the underlying products were made available for general release. The associated IPR&D of $1.4 million was reclassified to core and developed technology and is amortized over the estimated lives of the products commencing in 2012.
	The Company evaluates its purchased intangibles for possible impairment on an ongoing basis. When impairment indicators exist, the Company performs an assessment to determine if the intangible asset has been impaired and to what extent. The assessment of purchased intangibles impairment is conducted by first estimating the undiscounted future cash flows to be generated from the use and eventual disposition of the purchased intangibles and comparing this amount with the carrying value of these assets. If the undiscounted cash flows are less than the carrying amounts, impairment exists and future cash flows are discounted at an appropriate rate and compared to the carrying amounts of the purchased intangibles to determine the amount of the impairment. There were no such impairments recorded during the years ended December 31, 2013, 2012, and 2011.
	The estimated future amortization expense of purchased intangible assets as of December 31, 2013 is as follows (in thousands):
	Year ending December 31,	Amount
	2014	$	12,891
	2015		10,495
	2016		8,484
	2017		4,670
	2018		—
	Total	$	36,540
	In 2013, the Company capitalized approximately $2.4 million of software development costs for internally developed software products to be marketed and sold to customers after the point that technological feasibility has been reached and before the products are available for general release. The capitalized costs are included in other assets in the Company’s Consolidated Balance Sheets and are being amortized over the estimated product useful life, generally three years, beginning when the products are available for general release. Management expects that the capitalized software development costs are recoverable from future gross profits generated by these products and services. There were no such costs capitalized in 2012 and 2011, as the development costs qualifying for capitalization were insignificant.

Balance_Sheet_Details

Balance Sheet Details	12 Months Ended
	Dec. 31, 2013
Balance Sheet Details	'
	6. Balance Sheet Details:
	Inventories consist of the following (in thousands):
		December 31,
		2013		2012
	Raw materials	$	2,740	$	1,871
	Work in process		840		799
	Finished goods		99,729		97,290
		$	103,309	$	99,960
	Prepaid expenses and other current assets consist of the following (in thousands):
		December 31,
		2013		2012
	Non-trade receivables	$	9,251	$	10,463
	Prepaid expenses		31,164		35,489
	Derivative assets		6,748		4,158
	Other current assets		3,189		2,429
		$	50,352	$	52,539
	Property and equipment, net, consist of the following (in thousands):
				December 31,
		Estimated useful Life		2013			2012
	Computer equipment and software		3 to 5 years	$	265,222		$	241,642
	Equipment, furniture and fixtures		1 to 7 years		113,214			101,784
	Tooling equipment		3 years		20,811			18,544
	Leasehold improvements		3 to 13 years		59,595			59,931
					458,842			421,901
	Less: Accumulated depreciation and amortization				(343,685	)		(288,582	)
				$	115,157		$	133,319
	Deferred revenues consist of the following (in thousands):
		December 31,
		2013		2012
	Short-term:
	Service	$	170,701	$	156,487
	Product		307		595
	License		1,400		1,400
		$	172,408	$	158,482
	Long-term:
	Service	$	83,092	$	85,286
	Product		—		—
	License		4,375		5,775
		$	87,467	$	91,061
	Other accrued liabilities consist of the following (in thousands):
		December 31,
		2013		2012
	Accrued expenses	$	22,515	$	19,165
	Accrued co-op expenses		4,629		4,571
	Restructuring reserves		11,238		5,347
	Warranty obligations		9,475		10,475
	Derivative liability		6,780		3,273
	Employee stock purchase plan withholding		10,883		10,186
	Other accrued liabilities		12,224		10,001
		$	77,744	$	63,018

Restructuring_Costs

Restructuring Costs	12 Months Ended
	Dec. 31, 2013
Restructuring Costs	'
	7. Restructuring Costs:
	In 2013, 2012, and 2011, the Company recorded $48.5 million, $22.0 million, and $9.4 million, respectively, related to restructuring actions that included the elimination or relocation of various positions and the consolidation and elimination of certain facilities. These actions are generally intended to streamline and focus the Company’s efforts and more properly align the Company’s cost structure with its projected future revenue streams.
	The following table summarizes the activity of the Company’s restructuring reserves (in thousands):
		Severance/Other			Facilities			Projects			Total
								Discontinued
	Balance at December 31, 2010	$	2,524			697		$	—			3,221
	Additions to the reserve		8,698			698			—			9,396
	Cash payments and other usage		(8,736	)		(941	)		—			(9,677	)
	Balance at December 31, 2011	$	2,486		$	454		$	—		$	2,940
	Additions to the reserve		13,090			11,730			—			24,820
	Non-cash write-off of leasehold improvements		—			(2,796	)		—			(2,796	)
	Cash payments and other usage		(14,214	)		(1,924	)		—			(16,138	)
	Balance at December 31, 2012	$	1,362		$	7,464		$	—		$	8,826
	Additions to the reserve		10,185			38,231			2,880			51,296
	Non-cash write-off of leasehold improvements		—			(3,547	)		—			(3,547	)
	Cash payments and other usage		(10,404	)		(8,362	)		(2,880	)		(21,646	)
	Balance at December 31, 2013	$	1,143		$	33,786		$	—		$	34,929
	During 2013, management completed the consolidation and elimination of certain facilities globally and the elimination of approximately four percent of the Company’s global workforce. These actions were generally intended to optimize the organization and manage expenses to gain or improve operating efficiencies and profitability. As a result, the Company recorded approximately $38.2 million in restructuring charges related to idle facilities upon vacating these facilities. Additions to the reserve include $2.8 million of deferred rent that was expensed in prior periods. Additionally, in 2013, we recorded approximately $10.2 million of restructuring charges related to severance and other employee benefits, and approximately $2.9 million of other restructuring charges associated with changes to the Company’s product roadmap as it focuses on products and solutions with greater revenue and margin potential.
	During 2012, management completed the consolidation and elimination of certain facilities in order to gain efficiencies, including the combination of its headquarters in San Jose and Santa Clara, California into one new location in San Jose, California. As a result, the Company recorded approximately $11.7 million in restructuring charges related to idle facilities in 2012. Additions to the reserve include $2.8 million of deferred rent that was expensed in prior periods. Additionally, the Company recorded approximately $13.1 million of charges, primarily for severance and other employee benefits, related to restructuring actions approved by management in October 2011 and July 2012. The action plan approved in July 2012 resulted in the elimination of approximately four percent of our global workforce, enabling the Company to focus resources on its product development and product launch initiatives.
	During 2011, management completed the consolidation of its Colorado facilities and began the transition of certain engineering and product management and related support functions in its Andover, Massachusetts facility to other locations in order to achieve efficiencies. Restructuring charges relating to these actions primarily included costs for idle facilities and, to a lesser extent, severance and relocation costs for impacted individuals. Additionally, in October 2011, management committed to a restructuring plan designed to better align and allocate resources to more strategic growth areas of the business. These actions were primarily related to the reorganization of its global go-to-market and other organizations. The restructuring plan resulted in the elimination of approximately seven percent of its global workforce with the majority of the reductions taking effect in the fourth quarter of 2011 and first quarter of 2012, enabling the creation of new positions that better aligned with its strategic initiatives. In 2011, the Company recorded approximately $8.7 million of restructuring expenses related to severance and other employee benefits and $0.7 million related to idle facilities.
	As of December 31, 2013, the restructuring reserve is primarily comprised of facilities-related liabilities. The Company calculated the fair value of its facilities-related liabilities based on the discounted future lease payments less sublease assumptions. This fair value measurement is classified as a Level 3 measurement under ASC 820. The key assumptions used in the valuation model include discount rates, cash flow projections and estimated sublease income. Discount rates, cash flow projections and sublease assumptions involve significant judgment, and are based on management’s estimate of current and forecasted market conditions and are sensitive and susceptible to change.
	On January 22, 2014, management announced that it will take certain actions designed to better align expenses to the Company’s revenue and gross margin profile and position the Company for improved operating performance. These actions will result in the elimination of approximately 6% of the Company’s global workforce, the significant majority of which will take effect in the first quarter of 2014. Management also approved plans to reduce or eliminate certain leased facilities. The charges expected to be incurred in connection with these actions will be recorded through the third quarter of 2014.

Debt

Debt	12 Months Ended
	Dec. 31, 2013
Debt	'
	8. Debt:
	In September 2013, the Company entered into a Credit Agreement (the “Credit Agreement”) among the Company, certain of its subsidiaries from time to time party thereto as guarantors, the lenders from time to time party thereto and Morgan Stanley Senior Funding, Inc., as Administrative Agent and Collateral Agent. The Credit Agreement provides for a $250.0 million term loan (the “Term Loan”) maturing on September 13, 2018 (the “Maturity Date”) and bears interest at the Company’s option at either a base rate plus a spread of 0.50% to 1.00%, or a reserve adjusted LIBOR rate plus a spread of 1.50% to 2.00% based on the Company’s consolidated leverage ratio for the preceding four fiscal quarters.
	The Company entered into the Credit Agreement in conjunction with and for purposes of funding purchases of the Company’s common stock pursuant to a $250.0 million modified “Dutch Auction” self-tender offer announced in September 2013. See Note 13 for further details. Interest is due and payable in arrears quarterly for loans bearing interest at the base rate and at the end of an interest period (or at each three month interval in the case of loans with interest periods greater than three months) in the case of loans bearing interest at the reserve adjusted LIBOR rate. The Term Loan is payable in quarterly installments of principal equal to approximately $1.6 million which began on December 31, 2013, with the remaining outstanding principal amount of the Term Loan being due and payable on the Maturity Date. The Company may prepay the Term Loan, in whole or in part, at any time without premium or penalty. Amounts repaid or prepaid may not be reborrowed. The Term Loan is secured by substantially all the assets of certain domestic subsidiaries of the Company, subject to certain exceptions and limitations. The Company is also obligated to pay other customary closing fees, arrangement fees, and administration fees for a credit facility of this size and type. Total debt issuance costs incurred on the Term Loan were approximately $2.7 million and were recorded in prepaid expenses and other current assets, and other assets on the Consolidated Balance Sheets and are being amortized over the life of the Term Loan.
	The Credit Agreement contains customary affirmative and negative covenants, including covenants that limit or restrict the Company’s and its subsidiaries’ ability to, among other things, grant liens, make investments, incur indebtedness, merge or consolidate, dispose of assets, make acquisitions, pay dividends or make distributions, repurchase stock, enter into transactions with affiliates and enter into restrictive agreements, in each case subject to customary exceptions for a credit facility of this size and type. The Company is also required to maintain compliance with a consolidated fixed charge coverage ratio and a consolidated secured leverage ratio. The Company was in compliance with these covenants as of December 31, 2013.
	The Credit Agreement includes customary events of default that include, among other things, non-payment defaults, covenant defaults, inaccuracy of representations and warranties, cross default to material indebtedness, bankruptcy and insolvency defaults, material judgment defaults, ERISA defaults and a change of control default. The occurrence of an event of default could result in the acceleration of the obligations under the Credit Agreement. Under certain circumstances, a default interest rate will apply on all obligations during the existence of an event of default under the Credit Agreement at a per annum rate equal to 2.00% above the applicable interest rate for any overdue principal and 2.00% above the rate applicable for base rate loans for any other overdue amounts.
	At December 31, 2013, the weighted average interest rate on the Term Loan was 1.99%, the accrued interest on the Term Loan was $0.2 million, and the current and noncurrent portion of the outstanding Term Loan was $6.2 million and $242.2 million, respectively.
	The following table sets forth total interest expense recognized related to the Term Loan (in thousands):
		2013
	Contractual interest expense	$	1,605
	Amortization of debt issuance costs		178
		$	1,783

Investments_and_Fair_Value_Mea

Investments and Fair Value Measurements	12 Months Ended
	Dec. 31, 2013
Investments and Fair Value Measurements	'
	9. Investments and Fair Value Measurements:
	The Company had cash and cash equivalents of $392.6 million and $477.1 million at December 31, 2013 and 2012, respectively. Cash and cash equivalents consist of cash in banks, as well as highly liquid investments in money market funds, time deposits, savings accounts, commercial paper, U.S. government and agency securities, municipal securities and corporate debt securities. At December 31, 2013, the Company’s long-term investments had contractual maturities of one to two years.
	In addition, the Company has short-term and long-term investments in debt and equity securities which are summarized as follows: (in thousands):
			Cost Basis		Unrealized			Unrealized			Fair Value
					Gains			Losses
	Balances at December 31, 2013:
	Investments—Short-term:
	U.S. government securities		$	19,792	$	9		$	—		$	19,801
	U.S. government agency securities			38,388		16			(3	)		38,401
	Non-U.S. government securities			13,734		10			—			13,744
	Corporate debt securities			62,720		22			(4	)		62,738
	Total investments – short-term		$	134,634	$	57		$	(7	)	$	134,684
	Investments—Long-term:
	U.S. government securities		$	12,252	$	8		$	—		$	12,260
	U.S. government agency securities			30,627		12			(3	)		30,636
	Non-U.S. government securities			2,305		4			—			2,309
	Corporate debt securities			11,152		15			—			11,167
	Total investments – long-term		$	56,336	$	39		$	(3	)	$	56,372
	Balances at December 31, 2012:
	Investments—Short-term:
	U.S. government securities		$	24,205	$	3		$	—		$	24,208
	U.S. government agency securities			101,036		39			(5	)		101,070
	Non-U.S. government securities			1,527		—			—			1,527
	Corporate debt securities			70,386		20			(15	)		70,391
	Total investments – short-term		$	197,154	$	62		$	(20	)	$	197,196
	Investments—Long-term:
	U.S. government securities		$	6,396	$	4		$	—		$	6,400
	U.S. government agency securities			22,145		17			(2	)		22,160
	Non-U.S. government securities			422		—			—			422
	Corporate debt securities			21,368		—			(17	)		21,351
	Total investments – long-term		$	50,331	$	21		$	(19	)	$	50,333
	As of December 31, 2013, the Company’s total cash and cash equivalents and investments held in the United States totaled $167.1 million with the remaining $416.6 million held by various foreign subsidiaries outside of the United States.
	U.S. Government Securities
	The Company’s U.S. government securities mostly comprised of direct U.S. Treasury obligations that are guaranteed by the U.S. government. To ensure that the investment portfolio is sufficiently diversified, the Company’s investment policy requires that a certain percentage of the Company’s portfolio be invested in these types of securities.
	U.S. Government Agency Securities
	The Company’s U.S. government agency securities are mostly comprised of U.S. government agency instruments, including mortgage-backed securities. To ensure that the investment portfolio is sufficiently diversified, the Company’s investment policy requires that a certain percentage of the Company’s portfolio be invested in these types of securities.
	Non-U.S. Government Securities
	The Company’s Non-U.S. government securities are mostly comprised of non-U.S. government instruments, including state, municipal and foreign government securities. To ensure that the investment portfolio is sufficiently diversified, the Company’s investment policy allows a certain percentage of the Company’s portfolio be invested in these types of securities.
	Corporate Debt Securities
	The Company’s corporate debt securities are comprised of publicly-traded domestic and foreign corporate debt securities. The Company does not purchase auction rate securities, and investments are in instruments that meet high quality credit rating standards, as specified in the Company’s investment policy guidelines. These guidelines also limit the amount of credit exposure to any one issuer or type of instrument.
	Unrealized Losses
	The following table summarizes the fair value and gross unrealized losses of the Company’s investments, including those securities that are categorized as cash equivalents, with unrealized losses, aggregated by type of investment instrument and length of time that individual securities have been in a continuous unrealized loss position as of December 31, 2013 and 2012 (in thousands):
			Less than 12 Months					12 Months or Greater						Total
			Fair Value		Gross			Fair Value			Gross			Fair Value		Gross
					Unrealized						Unrealized					Unrealized
					Losses						Losses					Losses
	December 31, 2013:
	U.S. government agency securities			5,533		(6	)		—			—			5,533		(6	)
	Corporate debt securities			9,837		(3	)		1,504			(1	)		11,341		(4	)
	Total investments		$	15,370	$	(9	)	$	1,504		$	(1	)	$	16,874	$	(10	)
	December 31, 2012:
	U.S. government agency securities			21,768		(7	)		—			—			21,768		(7	)
	Corporate debt securities			43,743		(32	)		1,999			—			45,742		(32	)
	Total investments		$	65,511	$	(39	)	$	1,999		$	—		$	67,510	$	(39	)
	The Company reviews the individual securities in its portfolio to determine whether a decline in a security’s fair value below the amortized cost basis is other-than-temporary. If the decline in fair value is considered to be other-than-temporary, the cost basis of the individual security is written down to its fair value as a new cost basis, and the amount of the write-down is accounted for as a realized loss and included in earnings. As of December 31, 2013 and 2012, the Company determined that there were no investments in its portfolio that were other-than temporarily impaired.
	Private Company Investments
	For strategic reasons the Company has made various investments in private companies. The cost method of accounting is used to account for these investments as we hold a non-material ownership percentage and are written down to their estimated net realizable value when indications exist that these investments have been impaired. These investments are recorded in other assets in the Company’s Consolidated Balance Sheets and totaled $2.0 million at both December 31, 2013 and 2012.
	Fair Value Measurements
	Fair value is an exit price, representing the amount that would be received to sell an asset or paid to transfer a liability in an orderly transaction between market participants. As such, fair value is a market-based measurement that should be determined based on assumptions that market participants would use in pricing an asset or liability. As the basis for considering such assumptions, a three-tier value hierarchy prioritizes the inputs used in measuring fair value as follows: (Level 1) observable inputs such as quoted prices in active markets; (Level 2) inputs other than the quoted prices in active markets that are observable either directly or indirectly; and (Level 3) unobservable inputs in which there is little or no market data, which require the Company to develop its own assumptions. This hierarchy requires the Company to use observable market data, when available, and to minimize the use of unobservable inputs when determining fair value. On a recurring basis, the Company measures certain financial assets and liabilities at fair value, including its marketable securities and foreign currency contracts.
	The Company’s cash and investment instruments are classified within Level 1 or Level 2 of the fair value hierarchy because they are valued using inputs such as quoted market prices, broker or dealer quotations, or alternative pricing sources with reasonable levels of price transparency. The types of instruments valued based on quoted market prices for identical assets in active markets include money market funds. Such instruments are generally classified within Level 1 of the fair value hierarchy.
	The types of instruments valued based on other observable inputs include U.S. Treasury securities and other government agencies, corporate bonds and commercial paper. Such instruments are generally classified within Level 2 of the fair value hierarchy.
	As of December 31, 2013, the Company’s fixed income available-for-sale securities include U.S. Treasury securities and other government agencies (48%), corporate bonds (23%), commercial paper (13%), non-U.S. government securities (8%), and money market funds (8%). Included in available-for-sale securities is approximately $20.1 million of cash equivalents, which consist of investments with original maturities of three months or less and include money market funds.
	The principal market where the Company executes its foreign currency contracts is the retail market in an over-the-counter environment with a relatively high level of price transparency. The market participants and the Company’s counterparties are large money center banks and regional banks. The Company’s foreign currency contracts valuation inputs are based on quoted prices and quoted pricing intervals from public data sources (specifically, spot exchange rates, LIBOR rates and credit default rates) and do not involve management judgment. These contracts are typically classified within Level 2 of the fair value hierarchy.
The Company’s Term Loan under its Credit Agreement is classified within Level 2 instruments as the borrowings are not actively traded and have a variable interest rate structure based upon market rates currently available to the Company for debt with similar terms and maturities. See Note 8. The Company has elected not to record its Term Loan at fair value, but has measured it at fair value for disclosure purpose. At December 31, 2013, the carrying amount of the Term Loan approximated its estimated fair value based on observable market inputs.
During 2013, there were no transfers between the different levels of fair value measurements. At December 31, 2013, the fair value of the Company’s marketable securities and foreign currency contracts was determined using the following inputs (in thousands):
				Fair Value Measurements at Reporting Date Using
Description		Total		Quoted Prices in Active			Significant Other
				Markets for Identical			Observable Inputs
				Assets
				(Level 1)			(Level 2)
Assets:
Fixed income available-for-sale securities(a)		$	211,151	$	17,596		$	193,555
Foreign currency forward contracts(b)		$	6,748	$	—		$	6,748
Liabilities:
Foreign currency forward contracts(c)		$	6,780	$	—		$	6,780
(a)	Included in cash and cash equivalents and short- and long-term investments on the Company’s Consolidated Balance Sheets.
(b)	Included in short-term derivative asset as prepaid expenses and other current assets on the Company’s Consolidated Balance Sheets.
(c)	Included in short-term derivative liability as other accrued liabilities on the Company’s Consolidated Balance Sheets.

Business_Risks_and_Credit_Conc

Business Risks and Credit Concentration	12 Months Ended
	Dec. 31, 2013
Business Risks and Credit Concentration	'
	10. Business Risks and Credit Concentration:
	The Company sells products and services which serve the communications equipment market globally. Substantially all of the Company’s revenues are derived from sales of its products and their related services. A substantial majority of the Company’s revenue is from value-added resellers, distributors and service providers. In 2013, 2012 and 2011, one channel partner, ScanSource Communications, accounted for 16 %, 14%, and 14%, respectively, of the Company’s total net revenues. Any factors adversely affecting demand or supply for these products or services could materially adversely affect the Company’s business and financial performance. In particular, economic conditions worldwide have contributed from time to time to slowdowns in the communications and networking industries and have caused a negative impact on the specific segments and markets in which the Company operates. The Company has become increasingly exposed to these adverse changes in general economic conditions, which can result in reductions in capital expenditures by end-user customers for its products, longer sales cycles, the deferral or delay of purchase commitments for its products, and increased competition. These factors have adversely impacted the Company’s operating results in recent periods. Global economic concerns such as the varying pace of global economic recovery and the slowdown of government spending and softer demand in certain regions continue to create uncertainty and unpredictability which cause the Company to continue to be cautious about its future outlook. A global economic downturn would negatively impact technology spending for the Company’s products and services and could materially adversely affect its business, operating results and financial condition.
	The Company subcontracts the manufacture of most of its products to Celestica, Askey, Foxconn and VTech, which are all third-party contract manufacturers. The Company uses Celestica’s facilities in Thailand and China, and Askey’s, Foxconn’s and VTech’s facilities in China and should there be any disruption in services due to natural disaster, terrorist acts, quarantines or other disruptions associated with infectious diseases, or economic or political difficulties in any of these countries or in Asia or for any other reason, such disruption would harm its business and results of operations. While the Company had begun to develop secondary manufacturing sources for certain products, Celestica’s facilities are currently the manufacturer for substantially all of these products, which means the Company is essentially sole-sourced for the manufacturing of such products, and if Celestica experiences an interruption in operations, suffers from capacity constraints, which may include constraints based on production demands from the Company as it grows its business, or is otherwise unable to meet the Company’s current or future production requirements the Company would experience a delay or inability to ship its products, which would have an immediate negative impact on its revenues. Moreover, any incapacitation of any of the Company’s or its subcontractors’ manufacturing sites, due to destruction, natural disaster or similar events could result in a loss of product inventory. As a result of any of the foregoing, the Company may not be able to meet demand for its products, which could negatively affect revenues in the quarter of the disruption or longer depending upon the magnitude of the event, and could harm its reputation. In addition, operating in the international environment exposes the Company to certain inherent risks, including unexpected changes in regulatory requirements and tariffs, difficulties in staffing and managing foreign operations and potentially adverse tax consequences, all of which could harm the Company’s business and results of operations.
	The Company’s cash, cash equivalents and investments are maintained with a limited number of investment management companies and commercial banks and their international affiliates, and are invested in the form of demand deposit accounts, time deposits, savings accounts, money market accounts, corporate debt securities, government securities and municipal securities. Deposits in any one financial institution may exceed the amount of insurance provided on such deposits and not all deposits and investments are covered by insurance.
	The Company markets its products to distributors and end-users throughout the world. Management performs ongoing credit evaluations of the Company’s customers and maintains an allowance for potential credit losses. The Company’s credit risk may increase with the expansion of Polycom’s product offerings as customers place larger orders for initial stocking orders and its growth in emerging markets. There can be no assurance that the Company’s credit loss experience will remain at or near historical levels. At December 31, 2013, one customer from the Americas segment, ScanSource Communications, accounted for 11% of total gross accounts receivable. At December 31, 2012, no single customer accounted for more than 10% of gross accounts receivable.
	The Company has purchased licenses for technology incorporated in its products. The value of these long-term assets is monitored for any impairment and if it is determined that a write-down is necessary, this charge could have a material adverse effect on the Company’s consolidated results of operations, financial position or cash flows. There were no such charges in 2013, 2012 and 2011.

Commitments_and_Contingencies

Commitments and Contingencies	12 Months Ended
	Dec. 31, 2013
Commitments and Contingencies	'
	11. Commitments and Contingencies:
	Litigation and SEC Investigation:
	From time to time, the Company is involved in claims and legal proceedings that arise in the ordinary course of business. The Company expects that the number and significance of these matters will increase over time. In particular, the Company expects to face an increasing number of patent and other intellectual property claims as the number of products and competitors in Polycom’s industry grows and the functionality of video, voice, data and web conferencing products overlap. Any claims or proceedings against the Company, whether meritorious or not, could be time consuming, result in costly litigation, require significant amounts of management time, result in the diversion of significant operational resources, or require us to enter into royalty or licensing agreements which, if required, may not be available on terms favorable to us or at all. If management believes that a loss arising from these matters is probable and can be reasonably estimated, the Company will record a reserve for the loss. As additional information becomes available, any potential liability related to these matters is assessed and the estimates revised. Based on currently available information, management does not believe that the ultimate outcomes of these unresolved matters, individually and in the aggregate, are likely to have a material adverse effect on the Company’s financial position, liquidity or results of operations. However, litigation is subject to inherent uncertainties, and our view of these matters may change in the future. Were an unfavorable outcome to occur, there exists the possibility of a material adverse impact on our financial position and results of operations or liquidity for the period in which the unfavorable outcome occurs or becomes probable, and potentially in future periods.
	Following the July 23, 2013 announcement regarding the departure of the Company’s former CEO, the SEC initiated an investigation, a class action lawsuit was filed, and two derivative lawsuits were filed, all as described below.
	SEC Investigation
	In July 2013, the Company was informed that the SEC was investigating the Audit Committee’s review of Mr. Miller’s expenses and his resignation. The investigation is ongoing, and the SEC has requested information from the Company. The Company is cooperating with the investigation.
	Class Action Lawsuit
	On July 26, 2013, a purported shareholder class action suit was filed in the United States District Court for the Northern District of California against Polycom and certain of its current and former officers and directors. The lawsuit alleges that, between July 24, 2012 and July 23, 2013, Polycom issued materially false and misleading statements or failed to disclose information regarding Polycom’s business, operational and compliance policies, including with respect to its former Chief Executive Officer’s expense submissions and the Company’s internal controls, alleges that the Company’s financial statements were materially false and misleading, and alleges violations of the federal securities laws and seeks unspecified compensatory damages and other relief. On December 13, 2013, the Court appointed a lead plaintiff and approved lead and liaison counsel. Pursuant to the schedule entered by the Court, the lead plaintiff will file an amended consolidated complaint by February 24, 2014. At this time, the Company is unable to estimate any range of reasonably possible loss relating to the action.
	Derivative Lawsuits
	On August 21, 2013 and October 16, 2013, two purported shareholder derivative suits were filed in the United States District Court for the Northern District of California against certain of Polycom’s current and former officers and directors. On October 31, 2013, these two federal derivative actions were consolidated into one case. Plaintiffs have designated an operative complaint. On February 7, 2014, the Company filed motions to dismiss the complaint.
	On November 22, 2013 and December 13, 2013, two purported shareholder derivative suits were filed in the Superior Court of California, County of Santa Clara, against certain of the Company’s current and former officers and directors. On January 31, 2014, these two California state derivative actions were consolidated into one case. Pursuant to the schedule entered by the Court, plaintiffs will file or designate an operative complaint by March 17, 2014.
	The Federal and California state consolidated derivative lawsuits purport to assert claims on behalf of the Company, which is named as a nominal defendant in the actions. The complaints allege claims for breach of fiduciary duty, unjust enrichment, and corporate waste, and allege certain defendants failed to maintain adequate internal controls and issued, or authorized the issuance of, materially false and misleading statements, including with respect to Polycom’s former Chief Executive Officer’s expense submissions and the Company’s internal controls. The complaints further allege that certain defendants approved an unjustified separation agreement and caused Polycom to repurchase its own stock at artificially inflated prices. The complaints seek unspecified compensatory damages, corporate governance reforms, and other relief. At this time, the Company is unable to estimate any range of reasonably possible loss relating to the actions.
	Standby Letters of Credit:
	The Company has standby letters of credit totaling approximately $7.3 million and $7.6 million at December 31, 2013 and 2012, respectively.
	License Agreements:
	The Company enters into various license agreements in the normal course of business and the cost of these agreements are amortized over the expected life of the respective agreements. The cost of these agreements and the amounts amortized in the years presented, both combined and individually, are not significant.
	Leases:
	The Company leases certain office facilities and equipment under noncancelable operating leases expiring between 2014 and 2023. As of December 31, 2013, the following future minimum lease payments are due under the current lease obligations (in thousands). There were no sublease income assumptions included in the future minimum lease payments, as the amounts are not material. In addition to these minimum lease payments, the Company is contractually obligated under the majority of its operating leases to pay certain operating expenses during the term of the lease such as maintenance, taxes and insurance.
		Minimum
		Lease
		Payments
	Year Ending December 31,
	2014	$	32,637
	2015		27,294
	2016		20,125
	2017		17,701
	2018		15,592
	Thereafter		48,839
	Total	$	162,188
	Rent expense, including the effect of any future rent escalations or rent holiday periods, is recognized on a straight-line basis over the term of the lease, which is deemed to commence upon the Company gaining access and control of the facility. Rent expense for the years ended December 31, 2013, 2012, and 2011 was $32.2 million, $32.8 million, and $28.5 million, respectively. The difference between the monthly contractual rental payment and the straight-line monthly lease obligation for a multi-year lease agreement is accounted for as a deferred lease obligation. The short-term deferred lease obligation included in other accrued liabilities was $1.0 million and less than $0.1 million as of December 31, 2013 and 2012, respectively. The long-term deferred lease obligation included in other long-term liabilities was $16.0 million and $11.3 million as of December 31, 2013 and 2012, respectively. In the event the Company does not exercise its option to extend the term of any of its leases, or when any of these leases expire, the Company may incur certain costs to restore the properties to conditions in place at the time of commencement of the lease. The Company is unable to estimate the fair value of these restoration costs as these costs cannot be determined until the end of the lease term and at times can be based on the landlord’s discretion and subsequent negotiations between the landlord and the Company. However, the Company does not believe that these costs would be significant.

Foreign_Currency_Derivatives

Foreign Currency Derivatives	12 Months Ended
	Dec. 31, 2013
Foreign Currency Derivatives	'
	12. Foreign Currency Derivatives:
	The Company maintains a foreign currency risk management program that is designed to reduce the volatility of the Company’s economic value from the effects of unanticipated currency fluctuations. International operations generate both revenues and costs denominated in foreign currencies. The Company’s policy is to hedge significant foreign currency revenues and costs to improve margin visibility and reduce earnings volatility associated with unexpected changes in currency.
	Non-Designated Hedges
	The Company hedges its net foreign currency monetary assets and liabilities monthly, primarily resulting from foreign currency denominated receivables and payables with foreign exchange forward contracts to reduce the risk that the Company’s earnings and cash flows will be adversely affected by changes in foreign currency exchange rates. These derivative instruments are carried at fair value with changes in the fair value recorded as interest and other income (expense), net. These derivative instruments do not subject the Company to material balance sheet risk due to exchange rate movements because gains and losses on these derivatives are intended to offset remeasurement gains and losses on the hedged assets and liabilities. The Company executes non-designated foreign exchange forward contracts primarily denominated in Euros, British Pounds, Israeli Shekels, Brazilian Reais, Japanese Yen, and Mexican Pesos.
	The following table summarizes the Company’s notional position by currency, and approximate U.S. dollar equivalent, at December 31, 2013 of the outstanding non-designated hedges (foreign currency and dollar amounts in thousands):
			Original Maturities											Original Maturities
			of 360 Days or Less											of Greater than 360 Days
			Foreign			USD				Positions				Foreign				USD		Positions
			Currency			Equivalent								Currency				Equivalent
	Brazilian Real			3,022		$	1,290				Buy				—			$	—		—
	Brazilian Real			8,460		$	3,557				Sell				—			$	—		—
	British Pound			3,978		$	6,540				Buy				10,595			$	16,750		Buy
	British Pound			2,338		$	3,863				Sell				13,176			$	20,422		Sell
	Euro			2,983		$	4,110				Buy				11,608			$	15,640		Buy
	Euro			6,463		$	8,892				Sell				48,654			$	65,842		Sell
	Israeli Shekel			22,156		$	6,394				Buy				49,055			$	13,103		Buy
	Israeli Shekel			58,148		$	16,670				Sell				—			$	—		—
	Japanese Yen			333,876		$	3,180				Buy				—			$	—		—
	Japanese Yen			741,012		$	7,137				Sell				—			$	—		—
	Mexican Peso			9,289		$	710				Buy				—			$	—		—
	Mexican Peso			20,547		$	1,564				Sell				—			$	—		—
	The following table shows the effect of the Company’s non-designated hedges in the consolidated statement of operations for the twelve months ended December 31, 2013 (in thousands):
	Derivatives Not Designated as Hedging		Location of Gain or (Loss)		Amount of Gain or (Loss)
	Instruments		Recognized in Income on Derivative		Recognized in Income on Derivative
	Foreign exchange contracts		Interest and other income (expense), net		($411)
	Cash Flow Hedges
	The Company’s foreign exchange risk management program objective is to reduce volatility in the Company’s economic value from unanticipated foreign currency fluctuations. The Company designates forward contracts as cash flow hedges of foreign currency revenues and expenses, primarily the Chinese Yuan, Euro, British Pound and Israeli Shekel. All foreign exchange contracts are carried at fair value on the consolidated balance sheets and the maximum duration of foreign exchange forward contracts do not exceed thirteen months. Speculation is prohibited by policy.
	To receive hedge accounting treatment, all cash flow hedging relationships are formally designated at hedge inception, and tested both prospectively and retrospectively to ensure the forward contracts are highly effective in offsetting changes to future cash flows on the hedged transactions. The Company records effective spot to spot changes in these cash flow hedges in accumulated other comprehensive income until they are reclassified to revenue, cost of revenues, or operating expenses together with the hedged transaction. The time value on forward contracts is excluded from effectiveness testing and recorded in interest and other income (expense), net over the life of the contract together with any ineffective portion of the hedge.
	The following tables show the effect of the Company’s derivative instruments designated as cash flow hedges in the Consolidated Statements of Operations (in thousands):
			Year Ended December 31, 2013
			Gain or (Loss)			Location of Gain or (Loss)		Gain or (Loss)				Location of Gain or (Loss)				Gain or (Loss)
			Recognized in			Reclassified from OCI into		Reclassified				Recognized—Ineffective				Recognized—
			OCI—Effective			Income—Effective		from OCI				Portion and Amount				Ineffective
			Portion			Portion		into Income—				Excluded from				Portion and
								Effective				Effectiveness Testing				Amount Excluded
								Portion								from Effectiveness
																Testing(a)
	Foreign exchange contracts		$	1,374		Product revenues		$	207				Interest and other income (expense), net			$	368
						Cost of revenues			279
						Sales and marketing			233
						Research and			1,425
						development
						General and			164
						administrative
	Total		$	1,374				$	2,308							$	368
			Year Ended December 31, 2012
			Gain or (Loss)			Location of Gain or (Loss)		Gain or (Loss)				Location of Gain or (Loss)				Gain or (Loss)
			Recognized in			Reclassified from OCI into		Reclassified				Recognized—Ineffective				Recognized—
			OCI—Effective			Income—Effective		from OCI				Portion and Amount				Ineffective
			Portion			Portion		into Income—				Excluded from				Portion and
								Effective Portion				Effectiveness Testing				Amount Excluded
																from Effectiveness
																Testing(a)
	Foreign exchange contracts		$	1,018		Product revenues		$	7,133				Interest and other income (expense), net			$	42
						Cost of revenues			(607	)
						Sales and marketing			(974	)
						Research and			(774	)
						development
						General and			(1,044	)
						administrative
	Total		$	1,018				$	3,734							$	42
	(a)	For the year ended December 31, 2013, there were no gains or losses for the ineffective portion. For the year ended December 31, 2012, the loss recorded for the ineffective portion was immaterial.
	As of December 31, 2013, the Company estimated all values reported in accumulated other comprehensive income will be reclassified to income within the next twelve months.
In the event the underlying forecasted transaction does not occur, or it becomes probable that it will not occur, the related hedge gains and losses on the cash flow hedge would be immediately reclassified to interest and other income (expense), net on the consolidated statements of operations. For the years ended December 31, 2013 and 2012, there were no such gains or losses.
The following table summarizes the Company’s notional position by currency, and approximate U.S. dollar equivalent, at December 31, 2013 of the outstanding cash flow hedges, all of which are carried at fair value on the consolidated balance sheet (foreign currency and dollar amounts in thousands):
		Original Maturities											Original Maturities
		of 360 Days or Less											of Greater than 360 Days
		Foreign			USD				Positions				Foreign				USD		Positions
		Currency			Equivalent								Currency				Equivalent
Chinese Yuan			91,600		$	14,973				Buy				—			$	—		—
Euro			—		$	—				—				25,192			$	33,301		Buy
Euro			—		$	—				—				54,146			$	71,802		Sell
British Pound			—		$	—				—				20,705			$	32,115		Buy
British Pound			—		$	—				—				18,824			$	29,421		Sell
Israeli Shekel			—		$	—				—				87,345			$	24,085		Buy
The estimates of fair value are based on applicable and commonly quoted prices and prevailing financial market information as of December 31, 2013. See Note 9 of Notes to Consolidated Financial Statements for additional information on the fair value measurements for all financial assets and liabilities, including derivative assets and derivative liabilities that are measured at fair value in the Consolidated Financial Statements on a recurring basis. The following table sets forth the Company’s derivative instruments measured at gross fair value as reflected in the consolidated balance sheets as of December 31, 2013 and 2012 (in thousands):
		December 31, 2013							December 31, 2012
		Fair Value of			Fair Value of Derivatives				Fair Value of				Fair Value of Derivatives
		Derivatives Designated			Not Designated as Hedge				Derivatives Designated				Not Designated as Hedge
		as Hedge Instruments			Instruments				as Hedge Instruments				Instruments
Derivative assets(a):
Foreign exchange contracts		$	4,457		$	2,291			$	2,992			$	1,166
Derivative liabilities(b):
Foreign exchange contracts		$	4,235		$	2,545			$	1,760			$	1,513
(a)	All derivative assets are recorded as prepaid expenses and other current assets in the Consolidated Balance Sheets.
(b)	All derivative liabilities are recorded as other accrued liabilities in the Consolidated Balance Sheets.
Offsetting Derivative Assets and Liabilities
The Company has entered into master netting arrangements with each of its derivative counterparties. These arrangements afford the right to net derivative assets against liabilities with the same counterparty. Under certain default provisions, the Company has the right to setoff any other amounts payable to the payee whether or not arising under this agreement. As a result of the netting provisions, the Company’s maximum amount of loss under derivative transactions due to credit risk is limited to the net amounts due from the counterparties under the derivative contracts. Although netting is permitted, it is currently the Company’s policy and practice to record all derivative assets and liabilities on a gross basis in the consolidated balance sheets.
The following table sets forth the offsetting of derivative assets as of December 31, 2013 and 2012 (in thousands):
					Gross				Net Amounts				Gross Amounts Not Offset in the
		Gross			Amounts				Of Assets				Consolidated Balance Sheets
		Amounts of			Offset in the				Presented In the								Cash
		Recognized			Consolidated				Consolidated				Financial				Collateral		Net
		Assets			Balance Sheets				Balance Sheets				Instruments				Pledged		Amount
As of December 31, 2013:
Foreign exchange contracts		$	6,748		$	—			$	6,748			$	(5,643	)		$	—	$	1,105
As of December 31, 2012:
Foreign exchange contracts		$	4,158		$	—			$	4,158			$	(3,227	)		$	—	$	931
The following table sets forth the offsetting of derivative liabilities as of December 31, 2013 and 2012 (in thousands):
					Gross				Net Amounts				Gross Amounts Not Offset in the
		Gross			Amounts				Of Assets				Consolidated Balance Sheets
		Amounts of			Offset in the				Presented In the								Cash
		Recognized			Consolidated				Consolidated				Financial				Collateral		Net
		Liabilities			Balance Sheets				Balance Sheets				Instruments				Pledged		Amount
As of December 31, 2013:
Foreign exchange contracts		$	6,780		$	—			$	6,780			$	(5,643	)		$	—	$	1,137
As of December 31, 2012:
Foreign exchange contracts		$	3,273		$	—			$	3,273			$	(3,227	)		$	—	$	46

Stockholders_Equity_and_Stockb

Stockholders' Equity and Stock-based Compensation	12 Months Ended
	Dec. 31, 2013
Stockholders' Equity and Stock-based Compensation	'
	13. Stockholders’ Equity and Stock-based Employee Benefit Plans:
	Share Repurchase Programs:
	From time to time, the Company’s Board of Directors has approved plans under which the Company may at its discretion purchase shares of its common stock in the open market or through privately negotiated transactions. During the years ended December 31, 2013 and 2012, the Company purchased 45.2 million shares and 5.1 million shares, respectively, of common stock for cash of $502.3 million and $55.0 million, respectively. The purchase price for the shares of the Company’s stock repurchased is recorded as a reduction to stockholders’ equity. The excess of the cost of treasury stock that is retired over the fair value based on the calculated average price in equity is recorded as a charge to retained earnings.
	In September 2013, the Company announced that its Board of Directors had authorized the repurchase of $400.0 million, or approximately 20 percent, of the Company’s outstanding common stock (“Return of Capital Program”), through a $250.0 million modified “Dutch Auction” self-tender offer (the “Tender Offer”) and subsequent open market purchases or privately negotiated transactions. The Company funded the program with $150.0 million in cash and its $250.0 million Term Loan (see Note 8).
	Modified “Dutch Auction” Self-Tender Offer
	The Tender Offer expired on October 30, 2013. The Company accepted for payment an aggregate of 27.4 million shares of its common stock at a purchase price of $10.40 per share, for an aggregate cost of approximately $285.4 million, excluding fees and expenses relating to the Tender Offer. The excess of the purchase price over the fair value on the date the shares were tendered was not material and no charge was recorded in the Company’s Consolidated Statements of Operations. The costs associated with the Tender Offer were accounted for as an adjustment to the stockholder’s equity.
	Accelerated Share Repurchase Agreements
	On December 4, 2013, the Company entered into separate accelerated share repurchase (“ASR”) agreements with two financial institutions to repurchase an aggregate of $114.6 million of common stock as part of the concluding phase of the Company’s $400.0 million Return of Capital Program. Under the terms of the ASR agreements, the Company paid an aggregate $114.6 million of cash and received an initial delivery of approximately 8.0 million shares on December 5, 2013 that were valued at approximately $86.7 million, based on the closing price of the Company’s stock on the date of delivery. Those initially repurchased shares were retired and accounted for as a reduction to stockholder’s equity. The final number of shares to be repurchased will be based on the Company’s volume-weighted average stock price (“VWAP”) less an agreed upon discount during the term of the transactions. The purchase price for the shares to be settled pursuant to the holdback provision of the ASR agreements was approximately $27.9 million, based on the closing price of the Company’s stock on December 5, 2013, and was accounted for as a forward contract indexed to the Company’s own common stock, which was classified as an equity instrument and was recorded as a decrease in additional paid-in capital on the Consolidated Statements of Stockholders’ Equity. The costs associated with the ASR transactions were recorded as an adjustment to the stockholder’s equity. Additionally, the Company accounted for the ASR transactions as repurchases of common stock for the purpose of calculating its earnings per share. The transactions are expected to be completed by June 30, 2014 or earlier at the option of the counterparties, or later under certain circumstances. The terms of the ASR agreements are subject to changes if the Company were to enter into or announce certain types of transactions. If the Company is obligated to make an adjustment payment, based on the VWAP, to the counterparties upon settlement, the Company may elect to satisfy such obligation in cash or in shares of Polycom’s common stock.
	Accumulated Other Comprehensive Income:
	The following table summarizes the changes in accumulated other comprehensive income, net of tax, by component for the year ended December 31, 2013 (in thousands). The tax effects were not shown separately, as the impacts were not material.
			Unrealized				Unrealized Gains and Losses on				Foreign		Total
							Available-for-				Currency
			Gains and Losses on Cash				Sale Securities				Translation
			Flow Hedges
	Balance as of December 31, 2012		$	1,014			$	2			$	3,180	$	4,196
	Other comprehensive income before reclassifications			1,374				18				1,039		2,431
	Amounts reclassified from accumulated other comprehensive income (a)			(2,308	)			53				—		(2,255	)
	Net current-period other comprehensive income			(934	)			71				1,039		176
	Balance as of December 31, 2013		$	80			$	73			$	4,219	$	4,372
	(a)	See Note 12 for details of gains and losses, net of taxes, reclassified out of accumulated other comprehensive income into net income related to cash flow hedges and each line item of net income affected by the reclassification. Gains and losses related to available-for-sale securities were reclassified into interest and other income (expense), net in the Consolidated Statements of Operations, net of taxes.
	Stock Option Plans:
	On May 26, 2011, stockholders approved the 2011 Equity Incentive Plan (“2011 Plan”) and reserved for issuance under the 2011 Plan 19,800,000 shares, terminating any remaining shares available for grant under the 2004 Equity Incentive Plan (“2004 Plan”) as of such date. To the extent any shares, not to exceed 13,636,548 shares, would be returned to the 2004 Plan or the 1996 Stock Incentive Plan (“1996 Plan”) as a result of expiration, cancellation or forfeiture, those shares instead are added to the reserve of shares available under the 2011 Plan.
	Under the terms of the 2004 Plan and the 2011 Plan, options may not be granted at prices lower than fair market value at the date of grant. Options granted expire seven years from the date of grant and are only exercisable upon vesting. The Company settles employee stock option exercises with newly issued common shares. There were no options granted in 2013 and 2011. In 2012, the Company granted 479,571 non-qualified stock option shares to certain employees. Per the terms of the option grant, 50% of the options vest on the one year anniversary of the grant date and the remaining 50% will vest on the second anniversary of the grant date. The weighted-average estimated fair value of non-qualified stock options granted in 2012 was $4.45 per share.
	Performance Shares and Restricted Stock Units:
	The Compensation Committee of the Board of Directors may also grant performance shares and restricted stock units (“RSUs”) under the 2011 Plan to officers, non-employee directors, and certain other employees as a component of the Company’s broad-based equity compensation program. Performance shares represent a commitment by the Company to deliver shares of Polycom common stock at a future point in time, subject to the fulfillment by the Company of pre-defined performance criteria. Such awards will be earned only if performance targets over the performance periods established by or under the direction of the Compensation Committee are met. The number of performance shares subject to vesting is determined at the end of a given performance period. Generally, if the performance criteria are deemed achieved, performance shares will vest from one to three years from the anniversary of the grant date. RSUs are time-based awards that generally vest over a period of one to three years from the date of grant.
	During 2013, 2012, and 2011, the Company granted performance shares to certain employees and executives which contain a market condition based on Total Shareholder Return (TSR) and which measure the Company’s relative performance against the NASDAQ Composite Index. Such performance shares will be delivered in common stock at the end of the vesting period based on the Company’s actual performance compared to the target performance criteria and may equal from zero percent (0%) to one hundred fifty percent (150%) of the target award. The fair value of a performance share with a market condition is estimated on the date of award, using a Monte Carlo simulation model to estimate the total return ranking of the Company’s stock among the NASDAQ Composite Index companies over each performance period.
	The Company also granted RSUs during 2013, 2012 and 2011. The fair value of RSUs is based on the closing market price of the Company’s common stock on the date of award. The awards generally vest over one to three years in equal annual installments on each anniversary of the date of grant and will be delivered in common stock at the end of each vesting period. Stock-based compensation expense for the RSUs is recognized using the graded vesting method.
	During 2013, 2012, and 2011, the Company granted non-employee directors annual awards of RSUs. The awards vest quarterly over approximately one year from the date of grant. The fair value of these awards is the closing market price of the Company’s common stock on the date of grant. Stock-based compensation expense for these awards is amortized over six months from the date of grant due to voluntary termination provisions contained in the underlying agreements.
	Activity under the above plans for the year ended December 31, 2013 was as follows:
						Outstanding Options										Aggregate
																Intrinsic
																Value (in
			Shares				Number of				Weighted Avg		Weighted Avg			thousands)
			Available for				Shares				Exercise Price		Contractual
			Grant(1)										Term (Years)
	Balances, December 31, 2012			9,230,011				1,440,133			$	12.68
	Additional shares available for grant (2)			10,500,000				—				—
	Performance shares granted			(3,202,038	)			—				—
	Performance shares forfeited			3,808,784				—				—
	Restricted stock units granted			(9,802,302	)			—				—
	Restricted stock units forfeited			3,277,890				—				—
	Options granted			—				—				—
	Options exercised			—				(282,396	)		$	10.1
	Options forfeited			460,519				(460,519	)		$	12.8
	Options expired			(70	)			—				—
	Balances, December 31, 2013			14,272,794				697,218			$	13.64
	Options vested and expected to vest as of December 31, 2013 (3)			—				689,924			$	13.66		2.73		$	36
	-1	For purposes of this table, shares are counted on a fungible basis for full value award activity.
	-2	Approved by stockholders on June 5, 2013.
	-3	Options expected to vest are the result of applying the pre-vesting forfeiture rate assumption to total outstanding options.
	The total pre-tax intrinsic value of options exercised during the years ended December 31, 2013, 2012 and 2011 was $0.3 million, $3.1 million and $19.3 million, respectively.
	As of December 31, 2013, 2012, and 2011, 525,180, 963,873, and 1,644,733 outstanding options were exercisable at a weighted average exercise price of $14.31, $13.22, and $11.37, respectively.
	The options outstanding and currently exercisable by exercise price at December 31, 2013, are as follows:
			Stock Options Outstanding										Stock Options Exercisable
	Range of Exercise Price		Number				Weighted				Weighted		Number			Weighted		Weighted
			Outstanding				Average				Average		Exercisable			Average		Average
							Remaining				Exercise					Remaining		Exercise
							Contractual				Price					Contractual		Price
							Life (Yrs)									Life (Yrs)
	$0.75-$0.75			3,477				2.44			$	0.75		3,100				$	0.75
	$11.61-$11.61			351,818				5.02			$	11.61		180,157				$	11.61
	$11.67-$16.65			198,133				0.66			$	14.72		198,133				$	14.72
	$17.42-$17.42			143,790				0.1			$	17.42		143,790				$	17.42
			697,218				2.76			$	13.64		525,180			1.97	$	14.31
The aggregate intrinsic value of stock options outstanding and stock options exercisable at December 31, 2013 was approximately $36,000 and $32,000, respectively.
As of December 31, 2013, total compensation cost related to nonvested stock options not yet recognized was $0.3 million, which is expected to be recognized over the next 5 months on a weighted-average basis.
The following table summarizes the changes in unvested performance shares and RSUs and non-employee director RSUs for 2013:
		Number of				Weighted Avg
		Shares (1)				Grant Date
						Fair Value
Unvested shares at December 31, 2012			8,305,508			$	17.03
Performance shares granted			1,836,284			$	9.3
Restricted stock units granted (2)			5,870,349			$	10.24
Performance shares vested and issued			(156,128	)		$	9.74
Restricted stock units vested and issued			(2,672,336	)		$	15.98
Performance shares forfeited			(2,096,944	)		$	15.95
Restricted stock units forfeited			(1,881,271	)		$	13.29
Unvested shares at December 31, 2013			9,205,462			$	12.59
-1	For purposes of this table, shares are counted on a one-for-one basis, not on a fungible share counting basis.
-2	Includes 126,666 restricted stock units granted to non-employee directors.
As of December 31, 2013, there was approximately $65.1 million of total unrecognized compensation cost related to unvested awards, which is expected to be recognized over a weighted-average period of 13 months. The total fair value of shares vested in 2013, 2012, and 2011 was $44.2 million, $43.4 million, and $36.6 million, respectively.
Employee Stock Purchase Plan:
During the third quarter of 2011, the Company revised the administration of its Employee Stock Purchase Plan (“ESPP”) from a six-month offering and purchase period to a two-year offering period with four six-month purchase periods. Under the current ESPP, the Company can grant stock purchase rights to all eligible employees during a two-year offering period with purchase dates at the end of each six-month purchase period (each January and July). Participants lock in a purchase price per share at the beginning of the offering period upon plan enrollment. If the stock price on any subsequent offering period enrollment date is less than the lock-in price, the ESPP has a reset feature that automatically withdraws and re-enrolls participants into a new two-year offering period. Further, the ESPP permits participants to increase or decrease contribution elections at the end of a purchase period for future purchase periods within the same offering period. Shares are purchased through employees’ payroll deductions, currently up to a maximum of 15% of employees’ compensation, at purchase prices equal to 85% of the lesser of the fair market value of the Company’s common stock at either the date of the employee’s entrance to the offering period or the purchase date. No participant may purchase more than $25,000 worth of common stock in any one calendar year period, or 10,000 shares of common stock on any one purchase date. As of December 31, 2013, there were 5,259,136 shares available to be issued under the ESPP. During 2013, 2012, and 2011, 2,904,287 shares, 1,867,683 shares, and 1,143,614 shares, respectively, were purchased at an average per share price of $7.41, $11.24, and $15.19, respectively.
The Company modified the terms of certain existing awards under its ESPP. The modifications that occurred in 2013 were due to increases in contribution elections for future purchase periods by certain participants, as well as a result of the stock price as of the new offering period date being lower than it was on the initial enrollment date, which triggered the reset and rollover feature of the ESPP and resulted in a cumulative $1.4 million of incremental expenses to be recognized over the vesting period. Approximately $7.9 million of incremental expenses (including those from modifications that occurred in 2012) was recognized in 2013. The modifications that occurred in 2012 were due to the stock price as of the new offering period date being lower than it was on the initial enrollment date, which triggered the reset and rollover feature of the ESPP and resulted in a cumulative $20.6 million of incremental expenses, $10.2 million of which was recognized in 2012. There were no such modifications in 2011.
Valuation and Information
Stock-based Compensation Expense
The following table summarizes stock-based compensation expense recorded and its allocation within the Consolidated Statements of Operations (in thousands):
		Year Ended December 31,
		2013				2012				2011
Cost of sales—product		$	2,892			$	3,593			$	2,501
Cost of sales—service			5,852				6,611				3,766
Stock-based compensation expense included in cost of sales			8,744				10,204				6,267
Sales and marketing			26,570				36,791				27,022
Research and development			15,634				20,195				14,850
General and administrative			13,517				21,571				15,714
Stock-based compensation expense included in operating expenses			55,721				78,557				57,586
Stock-based compensation expense			64,465				88,761				63,853
Less: tax benefit			11,174				21,880				5,134
Stock-based compensation costs related to employee equity awards and employee stock purchases, net of tax		$	53,291			$	66,881			$	58,719
Stock-based compensation expense is not allocated to segments because it is separately maintained at the corporate level. In 2013, the Company capitalized approximately $0.2 million of stock-based compensation costs in accordance with the Company’s accounting policy for software development costs. There were no such costs capitalized in 2012 and 2011.
Valuation Assumptions:
The weighted-average estimated fair value of stock options granted in 2012 was $4.45 per share. The Company did not grant any stock options in 2013 and 2011.
The fair value of each employee stock option grant was estimated on the date of grant using the Black-Scholes option valuation model based on the following assumptions:
		2012
Expected volatility			51.24	%
Risk-free interest rate			0.5	%
Expected dividends			—	%
Expected life (yrs)			3.7
The estimated fair value per share of employee stock purchase rights granted pursuant to ESPP in 2013, 2012, and 2011 ranged from $2.60 to $4.57, from $2.69 to $8.40, and from $5.51 to $9.98, respectively, and was estimated on the date of grant using the Black-Scholes option valuation model based on the following assumptions:
		2013			2012			2011
Expected volatility		42.40-48.89	%		48.27-61.78	%		39.57	%
Risk-free interest rate		0.08-0.35	%		0.09-0.24	%		0.24	%
Expected dividends		—	%		—	%		—	%
Expected life (yrs)		0.5-2.0			0.5-2.0			1.03
The fair value of stock options and employee stock purchase rights is recognized as expense using the graded vesting method.
The Company computed its expected volatility assumption based on blended volatility (50% historical volatility and 50% implied volatility). The selection of the blended volatility assumption was based upon the Company’s assessment that blended volatility is more representative of the Company’s future stock price trends as it weighs in the longer term historical volatility with the near term future implied volatility.
The risk-free interest rate assumption is based upon published interest rates appropriate for the expected life of the Company’s employee stock options and stock purchase rights.
The dividend yield assumption is based on the Company’s history of not paying dividends and no future expectations of dividend payouts.
The expected life of employee stock options represents the weighted-average period that the stock options are expected to remain outstanding and was determined based on historical experience of similar awards, giving consideration to the contractual terms of the stock-based awards, vesting schedules, and expectations of future employee behavior as influenced by changes to the terms of its stock-based awards. The expected life of employee stock purchase rights represents the contractual terms of the underlying program.
As the stock-based compensation expense recognized in the Consolidated Statements of Operations is based on awards ultimately expected to vest, such amounts have been reduced for estimated forfeitures. Forfeitures are estimated at the time of grant based on the Company’s historical experience and revised in subsequent periods if actual forfeitures differ from those estimates.

Employee_Benefits_Plans

Employee Benefits Plans	12 Months Ended
	Dec. 31, 2013
Employee Benefits Plan-401(K) Plan	'
	14. Employee Benefits Plans:
	401(k) Plan:
	The Company has a 401(k) Plan (the Polycom 401(k) Plan), which covers the majority of employees in the United States. Each eligible employee may elect to contribute to the Polycom 401(k) Plan, through payroll deductions, the lesser of 60% of their eligible compensation or $17,500 in 2013, subject to current statutory limitations. The Company does not offer its own stock as an investment option in the Polycom 401(k) Plan. The Company, at the discretion of the Board of Directors, may make matching contributions to the Polycom 401(k) Plan. The Company matches in cash 50% of the first 6% of compensation employees contribute to the Polycom 401(k) Plan, up to a certain maximum per participating employee per year. For the 2013, 2012, and 2011 fiscal years, the maximum Company cash match was $2,000 per participating employee per year. The Polycom 401(k) Plan provides that employees who are projected to be age 50 or older by the end of each year and have elected to contribute to the Polycom 401(k) Plan may also make a catch-up contribution of up to $5,500.
	The Company’s contributions to the Polycom 401(k) Plan totaled approximately $3.0 million in each year of 2013, 2012, and 2011.

Income_Taxes

Income Taxes	12 Months Ended
	Dec. 31, 2013
Income Taxes	'
	15. Income Taxes:
	Income tax expense (benefit) consists of the following (in thousands):
		Year Ended December 31,
		2013			2012			2011
	Income tax expense from continuing operations:
	Current
	Federal	$	(953	)	$	44,569		$	3,825
	State		(72	)		3,283			2,240
	Foreign		8,604			9,488			6,445
			7,579			57,340			12,510
	Deferred
	Federal		(10,715	)		(13,372	)		(3,528	)
	State		(818	)		(1,308	)		433
	Foreign		285			(3,193	)		(3,191	)
			(11,248	)		(17,873	)		(6,286	)
	Total income tax expense (benefit) from continuing operations	$	(3,669	)	$	39,467		$	6,224
	Income tax expense (benefit) from discontinued operations	$	96		$	(29,311	)	$	6,160
	Included in income tax (benefit) expense from discontinued operations in 2012 is a tax benefit of $35.4 million recorded on the sale of the Company’s EWS business, as discussed in Note 3.
	Income from continuing operations before income taxes is categorized geographically as follows (in thousands):
		Year Ended December 31,
		2013			2012			2011
	United States	$	(17,823	)	$	(37,025	)	$	25,394
	Foreign		(4,381	)		39,523			105,760
	Total income (loss) from continuing operations before income taxes	$	(22,204	)	$	2,498		$	131,154
	The Company’s tax provision from continuing operations differs from the provision computed using statutory tax rates as follows (in thousands):
		Year ended December 31,
		2013			2012			2011
	Federal tax at statutory rate	$	(7,771	)	$	2,194		$	46,827
	State taxes, net of federal benefit		(1,571	)		2,354			2,673
	Non-deductible share based compensation		2,900			6,143			3,467
	Foreign income at tax rates different than U.S. rates		7,104			(10,176	)		(37,980	)
	Changes in reserves for uncertain tax positions		(2,497	)		(3,926	)		(8,852	)
	Research and development tax credit		(4,243	)		(268	)		(3,008	)
	Domestic production activities deduction		(757	)		(1,136	)		(574	)
	Gain on intercompany debt		—			36,163			—
	Non-deductible executive compensation		460			358			438
	Subpart F income		716			657			657
	Non-deductible acquisition and divestiture costs		(355	)		4,782			1,025
	Sale of intellectual property		2,947			2,356			1,424
	Foreign tax credit		(359	)		(264	)		(211	)
	Other		(243	)		230			338
	Tax provision (benefit)	$	(3,669	)	$	39,467		$	6,224
	During 2012, the Company implemented a global restructuring program that was designed to accommodate the trend toward more software and virtual based solutions versus a traditional hardware distribution model. As part of the restructuring, $38.8 million in federal and state taxes were recorded in 2012 on the financing of the global restructuring.
	The tax effects of temporary differences that give rise to the deferred tax assets (liabilities) are presented below (in thousands):
		December 31,
		2013			2012
	Property and equipment, net, principally due to differences in depreciation	$	6,508		$	8,208
	Capitalized research and development costs		425			504
	Acquired intangibles		3,742			2,274
	Inventory		6,910			5,887
	Restructuring reserves		10,214			2,851
	Deferred revenue		13,699			13,964
	Other reserves		17,570			16,442
	Share-based compensation		15,906			20,065
	Net operating loss and capital loss carryforwards		2,511			3,302
	Tax credit carryforwards		16,457			12,977
	Deferred tax asset		93,942			86,474
	Acquired intangibles		(2,249	)		(6,226	)
	Net deferred tax asset before valuation allowance	$	91,693		$	80,248
	Valuation allowance		(3,359	)		(3,161	)
	Net deferred tax asset, net of valuation allowance	$	88,334		$	77,087
	As of December 31, 2013, the Company had approximately $1.3 million in tax effected net operating loss carryforwards, $1.2 million in tax effected capital loss carryforwards, and $16.5 million in tax effected credit carryforwards. All of the net operating loss carryforwards and $0.1 million in credits relate to acquisitions and, as a result, are limited in the amount that can be recognized in any one year. The capital loss and net operating loss carryforward assets and tax credit carryforwards begin to expire in 2015. Included in the net deferred tax asset balance is a $3.4 million valuation allowance, $2.9 million of which relates to research credits in a jurisdiction with a history of credits in excess of taxable profits, and $0.5 million of which relates to foreign tax credit carryforwards.
	The Company provides for U.S. income taxes on the earnings of foreign subsidiaries unless they are considered permanently invested outside of the U.S. At December 31, 2013, the cumulative amount of earnings upon which U.S. income tax has not been provided is approximately $304.4 million. It is not practicable to determine the income tax liability that might be incurred if these earnings were to be repatriated to the U.S.
Excess tax benefits associated with stock option exercises are credited to stockholders’ equity. The reductions of income taxes payable resulting from the exercise of employee stock options and other employee stock programs that were credited to stockholders’ equity were approximately $5.1 million and $13.7 million for the years ended December 31, 2012, and 2011, respectively.
The Company has been granted a beneficial tax status by the Israeli tax authorities for income earned in Israel. Under the terms, the Company is eligible for significant tax rate reductions following the first year in which the Company has Israeli taxable income after consideration of tax losses carried forward. The tax rates for 2013, 2012 and 2011 were 9.1%, 5.0% and 3.8%, respectively. The Company successfully applied for an extension of the beneficial tax status in 2012 and has been granted tax rate reductions effective through 2021. The Company realized tax savings of $0.1 million in 2013, $4.8 million in 2012 ($0.03 per diluted share) and $5.2 million in 2011 ($0.03 per diluted share). There was no material impact on earnings per share for the Israel tax savings in 2013. The reduced tax rates, as well as other tax benefits, are conditional upon the Company fulfilling the terms stipulated under the Israeli law for the Encouragement of Capital Investments of 1959.
Effective 2008, the Company has been granted a beneficial tax status by the Singapore Economic Development Board for income earned in Singapore. Under the terms, the Company is eligible for a tax rate reduction from 17% to 10% on qualified income. The reduced tax rate is conditional upon fulfillment of the terms stipulated by the Singapore Economic Development Board and is currently effective through 2013. In 2013, the Company was granted an extension of the beneficial tax status for subsequent periods through 2015. The Company expects to reapply for subsequent periods after expiration. The tax savings realized were $0.3 million in 2013, $0.6 million in 2012, and $0.5 million in 2011. The tax holiday in Singapore did not have a material impact on earnings per share.
In addition, beginning in 2008, the Company’s subsidiary in China was granted High-New Technology Enterprise (“HNTE”) Recognition under which the Company’s tax rate is reduced from 25% to 15%. The tax savings realized were $1.1 million in 2013 ($0.01 per diluted share) and $0.7 million in 2011. There were no tax savings in 2012. From 2014 the Company may not qualify for the HNTE status and will apply for recognition as a Total Advisory Services Corporation (“TASC”). The rate reduction would be from 25% to 15%. The tax holiday in China did not have a material impact on earnings per share unless noted.
Also in 2008, the Company’s subsidiary in Thailand was granted Regional Headquarters Status (“RHS”). Under the RHS status, the statutory tax rate of 20% was reduced to 10% in 2013, from 23% to 10% in 2012, and from 30% to 10% in 2011. The associated tax savings were $0.2 million in 2013, $0.3 million in 2012, and $0.5 million in 2011. The beneficial tax status for Thailand will remain in effect as long as the Company meets the statutory requirements for qualification. The tax holiday in Thailand did not have a material impact on earnings per share for any year.
In 2013, the Company recorded reserve reductions of $2.4 million, all of which were due to the expiration of statutes of limitation in both the U.S and foreign jurisdictions.
In 2012, the Company recorded reserve reductions of $10.0 million, $0.8 million of which was paid in settlement of a multi-year state tax audit, and $5.7 million of which was due to a reduction in unrecognized tax benefits for research credits from acquired companies. The expiration of statutes of limitation in both the U.S. and foreign jurisdictions also resulted in reserve releases of $3.5 million.
In 2011, the Company recorded reserve releases of $8.1 million, $6.9 million of which was due to the resolution of multi-year tax audits. The expiration of statutes of limitation in both the U.S. and foreign jurisdictions resulted in reserve releases of $0.8 million, and $0.4 million in reserve releases was due to changes in foreign exchange rates.
The aggregate changes in the balance of the Company’s gross unrecognized tax benefits were as follows for the periods indicated (in thousands):
	December 31,
	2013			2012			2011
Beginning balance	$	23,049		$	32,408		$	36,923
Additions based on tax positions taken during a prior period		—			304			1,130
Reductions based on tax positions taken during a prior period		—			(5,690	)		(415	)
Additions based on tax positions taken during the current period		1,414			310			2,411
Reductions related to settlement of tax matters		—			(807	)		(6,873	)
Reductions related to a lapse of applicable statute of limitations		(2,451	)		(3,476	)		(768	)
Ending balance	$	22,012		$	23,049		$	32,408
Included in the balance as of December 31, 2013 is $22.0 million of unrecognized tax benefits which would affect income tax expense if recognized.
The Company’s practice is to recognize interest and/or penalties related to income tax matters in income tax expense. As of both December 31, 2013 and 2012, the Company had approximately $1.5 million of accrued interest and penalties related to uncertain tax positions.
By the end of 2014, uncertain tax positions may be reduced as a result of a lapse of the applicable statutes of limitations or the resolutions of ongoing audits in various jurisdictions. The Company anticipates that the reduction in 2014 will approximate $0.9 million and the reserve releases would be recorded as adjustments to tax expense in the period released.
The Company files income tax returns in the U.S. federal jurisdiction and various states and foreign jurisdictions. The Company is no longer subject to U.S. federal and state income tax examinations by tax authorities for years prior to 2010. Foreign income tax matters for most foreign jurisdictions have been concluded for years through 2007 except Hong Kong and Singapore, which have been concluded for years through 2006 and India, which is closed for years up through March 1, 2004; Brazil, China, and Israel, which have been concluded for years through 2008 and France and the United Kingdom which have been concluded for years through 2009.

Net_Income_Per_Share_Disclosur

Net Income Per Share Disclosures	12 Months Ended
	Dec. 31, 2013
Net Income Per Share Disclosures	'
	16. Net Income Per Share:
	The following table sets forth the computation of basic and diluted income (loss) per share (in thousands, except per-share amounts):
		Year ended December 31,
		2013			2012			2011
	Numerator
	Net income (loss) per share from continuing operations	$	(18,535	)	$	(36,969	)	$	124,930
	Income from discontinued operations, net of taxes		—			9,888			9,906
	Gain from sale of discontinued operations, net of taxes		459			35,425			—
	Net income (loss)	$	(18,076	)	$	8,344		$	134,836
	Denominator
	Weighted average shares outstanding, basic		167,272			176,878			176,426
	Effect of dilutive potential common shares		—			—			4,769
	Weighted average shares outstanding, diluted		167,272			176,878			181,195
	Basic net income (loss) per share:
	Net income (loss) per share from continuing operations	$	(0.11	)	$	(0.21	)	$	0.71
	Income from discontinued operations, net of taxes		—			0.06			0.06
	Gain from sale of discontinued operations, net of taxes		—			0.2			—
		$	(0.11	)	$	0.05		$	0.76
	Diluted net income (loss) per share:
	Net income (loss) per share from continuing operations	$	(0.11	)	$	(0.21	)	$	0.69
	Income from discontinued operations, net of taxes		—			0.06			0.05
	Gain from sale of discontinued operations, net of taxes		—			0.2			—
		$	(0.11	)	$	0.05		$	0.74
	Antidilutive employee stock-based awards, excluded		5,045			4,998			—
	The basic and diluted weighted average shares outstanding for 2013 reflected the 27.4 million shares of common stock repurchased and retired on October 30, 2013 pursuant to the Tender Offer program and the initial delivery of 8.0 million shares of common stock repurchased and retired on December 5, 2013 pursuant to the ASR agreements. See Note 13 for further information.
	Diluted shares outstanding include the dilutive effect of in-the-money employee equity share options, unvested performance shares, restricted stock units, and stock purchase rights under ESPP. The dilutive effect of such equity awards is calculated based on the average share price for each fiscal period using the treasury stock method. Potentially dilutive shares are excluded from the computation of diluted net income (loss) per share when their effect is antidilutive.

Business_Segment_Information

Business Segment Information	12 Months Ended
	Dec. 31, 2013
Business Segment Information	'
	17. Business Segment Information:
	The Company conducts its business globally and is managed geographically in three segments: (1) Americas, which consist of North America and CALA reporting units, (2) EMEA and (3) APAC. The segments are determined in accordance with how management views and evaluates the Company’s business and allocates its resources, and based on the criteria as outlined in the authoritative guidance. Effective January 1, 2013, the Company began to allocate certain service costs previously reported within the Americas segment into both the EMEA and APAC segments in order to more appropriately align costs among the segments with the associated revenues. As such, all prior periods reported were also reclassified to conform to the current year presentation.
	Segment Revenue and Profit
	Segment revenues are attributed to a theater based on the ordering location of the customer. A significant portion of each segment’s expenses arise from shared services and infrastructure that Polycom has historically allocated to the segments in order to realize economies of scale and to use resources efficiently. These expenses include information technology services, facilities and other infrastructure costs.
	Segment Data
	The results of the reportable segments are derived directly from Polycom’s management reporting system. The results are based on Polycom’s method of internal reporting and are not reported in conformity with accounting principles generally accepted in the United States. Management measures the performance of each segment based on several metrics, including contribution margin as defined below. For internal reporting purposes and determination of segment contribution margins, geographic segment revenues may differ slightly from actual geographic revenues due to internal revenue allocations between the Company’s segments. Asset data, with the exception of gross accounts receivable, is not reviewed by management at the segment level.
	Financial information for each reportable geographical segment as of and for the fiscal years ended December 31, 2013, 2012, and 2011, based on the Company’s internal management system and as utilized by the Company’s Chief Operating Decision Maker (CODM), its Chief Executive Officer, is as follows (in thousands) :
		Americas			EMEA			APAC			Total
	2013:00:00
	Revenue*	$	694,522		$	338,035		$	335,832		$	1,368,389
	% of total revenue		50	%		25	%		25	%		100	%
	Contribution margin		270,786			142,686			136,462			549,934
	% of segment revenue		39	%		42	%		41	%		40	%
	2012:00:00
	Revenue*	$	689,099		$	345,723		$	357,806		$	1,392,628
	% of total revenue		49	%		25	%		26	%		100	%
	Contribution margin		281,229			138,886			147,699			567,814
	% of segment revenue		41	%		40	%		41	%		41	%
	2011:00:00
	Revenue*	$	693,288		$	347,703		$	361,198		$	1,402,189
	% of total revenue		49	%		25	%		26	%		100	%
	Contribution margin		280,259			141,421			175,242			596,922
	% of segment revenue		40	%		41	%		49	%		43	%
	At December 31, 2013:
	Gross accounts receivable		86,243			71,970			66,921			225,134
	% of total gross accounts receivable		38	%		32	%		30	%		100	%
	At December 31, 2012:
	Gross accounts receivable		100,494			67,529			71,128			239,151
	% of total gross accounts receivable		42	%		28	%		30	%		100	%
	At December 31, 2011:
	Gross accounts receivable		96,318			77,975			71,659			245,952
	% of total gross accounts receivable		39	%		32	%		29	%		100	%
	*The United States and China, individually, accounted for more than 10% of the Company’s revenues in 2013, 2012 and 2011. Net revenues in the United States were $589.6 million, $583.0 million, and $593.6 million for the years ended December 31, 2013, 2012, and 2011, respectively. Net revenues in China were $147.3 million, $159.3 million, and $161.5 million for the years ended December 31, 2013, 2012 and 2011, respectively. During 2013, 2012, and 2011, one customer from the Americas segment, ScanSource Communications, accounted for 16%, 14%, and 14%, respectively, of the Company’s revenues. At December 31, 2013, ScanSource accounted for 11% of total gross accounts receivable and no single customer accounted for more than 10% of gross accounts receivable at December 31, 2012 and 2011.
	Segment contribution margin includes all geographic segment revenues less the related cost of sales, direct sales and marketing expenses. Management allocates some infrastructure costs such as facilities and IT costs in determining segment contribution margin. Contribution margin is used, in part, to evaluate the performance of, and allocate resources to, each of the segments. Certain operating expenses are not allocated to segments because they are separately managed at the corporate level. These unallocated costs include corporate manufacturing costs, sales and marketing costs other than direct sales and marketing expenses, research and development expense, general and administrative costs, such as legal and accounting, stock-based compensation costs, transaction-related costs, amortization of purchased intangible assets, purchased in-process research and development costs, litigation reserves and payments, restructuring costs and interest and other income (expense), net.
	The following tables set forth the reconciliation of segment information to Polycom consolidated totals (in thousands):
		Year Ended December 31,
		2013			2012			2011
	Segment contribution margin	$	549,934		$	567,814		$	596,922
	Corporate and unallocated costs		(430,471	)		(418,465	)		(369,412	)
	Stock-based compensation		(64,465	)		(88,761	)		(63,853	)
	Effect of stock-based compensation cost on warranty expense		(547	)		(669	)		(546	)
	Transaction-related costs		(3,424	)		(14,064	)		(9,688	)
	Amortization of purchased intangibles		(19,750	)		(17,465	)		(11,201	)
	Restructuring costs		(48,470	)		(22,024	)		(9,396	)
	Interest and other income (expense), net		(5,011	)		(3,868	)		(1,672	)
	Income (loss) from continuing operations before provision for income taxes	$	(22,204	)	$	2,498		$	131,154
		December 31,
		2013			2012			2011
	Gross accounts receivables	$	225,134		$	239,151		$	245,952
	Returns and related reserves		(38,938	)		(41,576	)		(33,416	)
	Allowance for doubtful accounts		(2,827	)		(2,921	)		(1,732	)
	Total trade receivables, net	$	183,369		$	194,654		$	210,804
	The following table sets forth the Company’s revenues by groups of similar products and services as follows (in thousands):
		Year ended December 31,
		2013			2012			2011
	Net Revenues:
	UC group systems	$	904,923		$	956,153		$	971,753
	UC personal devices		219,103			180,939			175,673
	UC platform		244,363			255,536			254,763
	Total	$	1,368,389		$	1,392,628		$	1,402,189
	The Company’s fixed assets, net of accumulated depreciation, are located in the following geographical areas (in thousands):
		December 31,
		2013			2012
United States	$	79,345		$	89,830
EMEA		13,036			15,148
APAC		21,403			26,408
Other		1,373			1,933
Total	$	115,157		$	133,319
No single country outside of the United States has more than 10% of total net fixed assets as of December 31, 2013 and 2012.

Supplementary_Financial_Data

Supplementary Financial Data	12 Months Ended
	Dec. 31, 2013
Supplementary Financial Data	'
	SUPPLEMENTARY FINANCIAL DATA
	(Unaudited)
	(in thousands, except per share amounts)
		2013										2012
		Fourth			Third			Second		First		Fourth			Third			Second		First
		Quarter			Quarter			Quarter		Quarter		Quarter			Quarter			Quarter		Quarter
	Revenue	$	347,942		$	336,461		$	345,234	$	338,752	$	353,026		$	335,392		$	358,500	$	345,710
	Gross profit	$	197,032		$	195,044		$	201,598	$	199,097	$	206,816		$	196,358		$	213,922	$	206,336
	Net income (loss) from continuing operations	$	(1,969	)	$	(23,978	)	$	5,295	$	2,117	$	(35,689	)	$	(15,406	)	$	1,962	$	12,164
	Net income from operations of discontinued operations	$	—		$	—		$	—	$	—	$	2,178		$	645		$	4,313	$	2,752
	Net gain from sale of discontinued operations	$	—		$	—		$	—	$	459	$	35,425		$	—		$	—	$	—
	Net income (loss)	$	(1,969	)	$	(23,978	)	$	5,295	$	2,576	$	1,914		$	(14,761	)	$	6,275	$	14,917
	Basic net income (loss) per share:
	Net income (loss) per share from continuing operations	$	(0.01	)	$	(0.14	)	$	0.03	$	0.01	$	(0.20	)	$	(0.09	)	$	0.01	$	0.07
	Net income per share from operations of discontinued operations	$	—		$	—		$	—	$	—	$	0.01		$	0		$	0.02	$	0.02
	Net gain per share from operations of discontinued operations	$	—		$	—		$	—	$	—	$	0.2		$	—		$	—	$	—
	Basic net income (loss) per share	$	(0.01	)	$	(0.14	)	$	0.03	$	0.01	$	0.01		$	(0.08	)	$	0.04	$	0.08
	Diluted net income (loss) per share:
	Net income (loss) per share from continuing operations	$	(0.01	)	$	(0.14	)	$	0.03	$	0.01	$	(0.20	)	$	(0.09	)	$	0.01	$	0.07
	Net income per share from operations of discontinued operations	$	—		$	—		$	—	$	—	$	0.01		$	0		$	0.02	$	0.02
	Net gain per share from operations of discontinued operations	$	—		$	—		$	—	$	—	$	0.2		$	—		$	—	$	—
	Diluted net income (loss) per share	$	(0.01	)	$	(0.14	)	$	0.03	$	0.01	$	0.01		$	(0.08	)	$	0.04	$	0.08

Valuation_And_Qualifying_Accou

Valuation And Qualifying Accounts	12 Months Ended
	Dec. 31, 2013
Valuation And Qualifying Accounts	'
	FINANCIAL STATEMENT SCHEDULE—SCHEDULE II
	POLYCOM, INC.
	VALUATION AND QUALIFYING ACCOUNTS
	(in thousands)
		Balance at		Additions		Deductions			Balance at
		Beginning							End of
		of Year							Year
	Year ended December 31, 2013
	Allowance for doubtful accounts	$	2,921	$	—	$	(94	)	$	2,827
	Sales returns and allowances	$	37,422	$	93,101	$	(95,869	)	$	34,654
	Income tax valuation allowance	$	3,161	$	460	$	(262	)	$	3,359
	Year ended December 31, 2012
	Allowance for doubtful accounts	$	1,732	$	1,189	$	—		$	2,921
	Sales returns and allowances	$	30,602	$	91,356	$	(84,536	)	$	37,422
	Income tax valuation allowance	$	3,301	$	—	$	(140	)	$	3,161
	Year ended December 31, 2011
	Allowance for doubtful accounts	$	1,844	$	—	$	(112	)	$	1,732
	Sales returns and allowances	$	24,855	$	71,534	$	(65,787	)	$	30,602
	Income tax valuation allowance	$	—	$	3,301	$	—		$	3,301

Description_of_Business_and_Su1

Description of Business and Summary of Significant Accounting Policies: (Policies)	12 Months Ended
	Dec. 31, 2013
Description of Business	'
	Description of Business:
	Polycom is a leading global provider of high-quality, easy-to-use communications solutions that enable enterprise, government, education and healthcare customers to more effectively collaborate over distance, time zones and organizational boundaries. Our solutions are built on architectures that enable unified video, voice and content communications.
Principles of Accounting and Consolidation	'
	Principles of Accounting and Consolidation:
	These Consolidated Financial Statements have been prepared in accordance with accounting principles generally accepted in the United States of America. The Consolidated Financial Statements include the accounts of the Company and its wholly-owned subsidiaries. All significant intercompany balances and transactions have been eliminated.
	Certain prior year service costs have been reclassified among our segments to conform to the current year presentation in order to more appropriately align those costs with the associated revenues. See Note 17.
	Revisions of Prior Period Financial Statements
	During the quarter ended December 31, 2013, the Company discovered an error that impacted the Company’s previously issued interim and annual consolidated statements of cash flows. The error was related to the net amortization of discounts and premiums on investments not being properly reported, which resulted in understatements of cash flows provided by operating activities and cash used in investing activities in the first three quarters of 2013 and full fiscal years 2012 and 2011.
	Additionally, during the quarter ended June 30, 2013, the Company discovered an error that impacted the Company’s previously issued interim and annual consolidated financial statements for the fiscal years ended December 31, 2010 through 2012 and the quarter ended March 31, 2013. The error was related to certain royalty related expenses not being properly allocated between the Company’s U.S. entity and its international subsidiary, which led to an understated income tax provision in fiscal years 2010 through 2012.
	In evaluating whether the Company’s previously issued consolidated financial statements were materially misstated, the Company considered the guidance in ASC Topic 250, Accounting Changes and Error Corrections, ASC Topic 250-10-S99-1, Assessing Materiality, and ASC Topic 250-10-S99-2, Considering the Effects of Prior Year Misstatements when Quantifying Misstatements in Current Year Financial Statements. The Company concluded that these errors were not material to any of the prior reporting periods, and therefore, amendments of previously filed reports are not required. However, if the entire correction was recorded in 2013, the cumulative amount of the income tax provision error would be material in 2013 and, for both the income tax provision error and consolidated statements of cash flows correction, would impact comparisons to prior periods. As such, the revisions for these corrections are reflected in the financial information of the applicable prior periods and will be reflected in future filings containing such financial information.
	The following tables set forth a summary of the revisions to the Consolidated Financial Statements for the periods indicated:
		31-Dec-12											31-Dec-11
		As Previously Reported				Adjustment				As Revised			As Previously Reported			Adjustment			As Revised
	Consolidated Balance Sheets and Statements of Stockholders’ Equity
	Prepaid expenses and other current assets	$	55,454			$	(2,915	)		$	52,539		$	51,241		$	(1,504	)	$	49,737
	Total current assets	$	1,073,253			$	(2,915	)		$	1,070,338		$	994,408		$	(1,504	)	$	992,904
	Total assets	$	1,915,351			$	(2,915	)		$	1,912,436		$	1,844,805		$	(1,504	)	$	1,843,301
	Retained earnings	$	100,019			$	(2,915	)		$	97,104		$	118,265		$	(1,504	)	$	116,761
	Total stockholders’ equity	$	1,430,689			$	(2,915	)		$	1,427,774		$	1,370,116		$	(1,504	)	$	1,368,612
	Total liabilities and stockholders’ equity	$	1,915,351			$	(2,915	)		$	1,912,436		$	1,844,805		$	(1,504	)	$	1,843,301
		Year Ended December 31, 2012											Year Ended December 31, 2011
		As Previously Reported				Adjustment				As Revised			As Previously Reported			Adjustment			As Revised
	Consolidated Statements of Operations
	Provision for income taxes for continuing operations	$	38,056			$	1,411			$	39,467		$	5,246		$	978		$	6,224
	Net income (loss) from continuing operations	$	(35,558	)		$	(1,411	)		$	(36,969	)	$	125,908		$	(978	)	$	124,930
	Net income	$	9,755			$	(1,411	)		$	8,344		$	135,814		$	(978	)	$	134,836
	Basic Net Income (loss) Per Share:
	Net income (loss) per share from continuing operations	$	(0.20	)		$	(0.01	)		$	(0.21	)	$	0.71		$	(0.00	)	$	0.71
	Basic net income per share	$	0.06			$	(0.01	)		$	0.05		$	0.77		$	(0.01	)	$	0.76
	Diluted net income (loss) per share:
	Net income (loss) per share from continuing operations	$	(0.20	)		$	(0.01	)		$	(0.21	)	$	0.69		$	(0.00	)	$	0.69
	Diluted net income per share	$	0.06			$	(0.01	)		$	0.05		$	0.75		$	(0.01	)	$	0.74
	Consolidated Statements of Comprehensive Income
	Net income	$	9,755			$	(1,411	)		$	8,344		$	135,814		$	(978	)	$	134,836
	Comprehensive income	$	8,341			$	(1,411	)		$	6,930		$	140,312		$	(978	)	$	139,334
	Consolidated Statements of Cash Flows
	Operating activities
	Net income	$	9,755			$	(1,411	)		$	8,344		$	135,814		$	(978	)	$	134,836
	Changes in prepaid expenses and other current assets	$	(8,835	)		$	1,411			$	(7,424	)	$	(3,190	)	$	978		$	(2,212	)
	Amortization of discounts and premiums on investments, net	$	—			$	2,381			$	2,381		$	—		$	2,695		$	2,695
	Net cash provided by operating activities	$	186,980			$	2,381			$	189,361		$	299,645		$	2,695		$	302,340
	Investing activities
	Purchases of investments	$	(312,631	)		$	(2,381	)		$	(315,012	)	$	(372,567	)	$	(2,695	)	$	(375,262	)
	Net cash used in investing activities	$	(52,576	)		$	(2,381	)		$	(54,957	)	$	(237,683	)	$	(2,695	)	$	(240,378	)
Use of Estimates	'
	Use of Estimates:
	The preparation of financial statements in conformity with accounting principles generally accepted in the United States of America requires management to make estimates and assumptions that affect the amounts reported in the Company’s financial statements and accompanying notes. Actual results could differ from those estimates.
Cash and Cash Equivalents	'
	Cash and Cash Equivalents:
	The Company considers all highly liquid investments with original maturities of three months or less at the time of purchase to be cash equivalents.
Allowance for Doubtful Accounts	'
	Allowance for Doubtful Accounts:
	The Company maintains an allowance for doubtful accounts for estimated losses resulting from the inability of the Company’s customers to make required payments. The Company reviews its allowance for doubtful accounts quarterly by assessing individual accounts receivable over a specific aging and amount, and all other balances on a pooled basis based on historical collection experience. If the financial conditions of the Company’s customers were to deteriorate, adversely affecting their abilities to make payments, additional allowances would be required. Delinquent account balances are written off after management has determined that the likelihood of collection is remote.
Investments	'
	Investments:
	The Company’s short-term and long-term investments as of December 31, 2013 are comprised of U.S. and non-U.S. government securities, U.S. agency securities and corporate debt securities. Investments are classified as short-term or long-term based on their remaining maturities. All investments are held in the Company’s name at a limited number of major financial institutions. At December 31, 2013 and 2012, all of the Company’s investments were classified as available-for-sale and were carried at fair value based on quoted market prices, broker or dealer quotations, or alternative pricing sources with reasonable levels of price transparency at the end of the reporting period. Unrealized gains and losses are recorded as a separate component of accumulated other comprehensive income in the Consolidated Statements of Stockholders’ Equity. If these investments are sold at a loss or are considered to have other than temporarily declined in value, a charge against earnings is recorded. The specific identification method is used to determine the cost of securities disposed of, with realized gains and losses reflected in interest and other income (expense), net.
	For strategic reasons, the Company has made various investments in private companies. The private company investments are carried at cost and written down to estimated market value when indications exist that these investments have other than temporarily declined in value. The Company reviews these investments for impairment when events or changes in circumstances indicate that impairment may exist and makes appropriate reductions in carrying value, if necessary. The Company evaluates a number of factors, including price per share of any recent financing, expected timing of additional financing, liquidation preferences, historical and forecasted earnings and cash flows, cash burn rate, and technological feasibility of the investee company’s products to assess whether or not the investment is potentially impaired.
Inventories	'
	Inventories:
	Inventories are valued at the lower of cost or market with cost computed on a first-in, first-out (FIFO) basis. Consideration is given to obsolescence, excessive levels, deterioration and other factors in evaluating net realizable value. The Company records write-downs for excess and obsolete inventory equal to the difference between the carrying value of inventory and the estimated future selling price based upon assumptions about future product life-cycles, product demand and market conditions. At the point of the loss recognition, a new, lower-cost basis for that inventory is established, and subsequent changes in facts and circumstances do not result in the restoration or increase in that newly established cost basis.
Property and Equipment	'
	Property and Equipment:
	Property and equipment are stated at cost less accumulated depreciation and amortization. Depreciation is provided using the straight-line method over the estimated useful lives of the assets. Estimated useful lives are one to thirteen years. Amortization of leasehold improvements is computed using the straight-line method over the shorter of the remaining lease term or the estimated useful lives of the related assets, typically three to thirteen years. Disposals of capital equipment are recorded by removing the costs and accumulated depreciation from the accounts and gains or losses on disposals are included in the results of operations.
Goodwill	'
	Goodwill:
	Goodwill is not amortized but is regularly reviewed for potential impairment. In September 2011, the FASB issued authoritative guidance on goodwill impairment testing which provides entities an option to perform a qualitative assessment to determine whether further impairment testing is necessary. The Company elected to early adopt this guidance in 2011, and such adoption did not have an impact to the Company’s Consolidated Financial Statements. The identification and measurement of goodwill impairment involves the estimation of the fair value of the Company’s reporting units. The estimated fair value of reporting units is based on the best information available as of the date of the assessment, which primarily incorporates management assumptions about expected future cash flows. Future cash flows can be affected by changes in industry or market conditions or the rate and extent to which anticipated synergies or cost savings are realized with newly acquired entities.
Impairment of Long-Lived Assets	'
	Impairment of Long-Lived Assets:
	Purchased intangible assets with finite lives are amortized using the straight-line method over the estimated economic lives of the assets, which range from several months to six years. Purchased intangible assets determined to have indefinite useful lives are not amortized. Long-lived assets, including intangible assets, are reviewed for impairment whenever events or changes in circumstances indicate that the carrying amount of such assets may not be recoverable. Determination of recoverability is based on an estimate of undiscounted future cash flows resulting from the use of the asset or group of assets and their eventual disposition. The Company periodically assesses the remaining useful lives of long-lived assets. Measurement of an impairment loss for long-lived assets that management expects to hold and use is based on the estimated fair value of the asset. Long-lived assets to be disposed of are reported at the lower of carrying amount or estimated fair value less costs to sell.
Guarantees	'
	Guarantees:
	Warranty
	The Company provides for the estimated costs of product warranties at the time revenue is recognized. The specific terms and conditions of those warranties vary depending upon the product sold. In the case of hardware manufactured by the Company, warranties generally start from the delivery date and continue for one year. Software products generally carry a 90-day warranty from the date of purchase. The Company’s liability under warranties on software products is to provide a corrected copy of any portion of the software found not to be in substantial compliance with the agreed upon specifications. Factors that affect the Company’s warranty obligation include product failure rates, material usage and service delivery costs incurred in correcting product failures. The Company assesses the adequacy of the recorded warranty liabilities every quarter and makes adjustments to the liability if necessary.
	Changes in the warranty obligation during the period, which is included as a component of “Other accrued liabilities” on the Consolidated Balance Sheets, are as follows (in thousands):
			December 31,
			2013				2012
	Balance at beginning of year		$	10,475			$	10,577
	Accruals for warranties issued during the year			16,307				18,432
	Actual charges against warranty reserve during the year			(17,307	)			(18,534	)
	Balance at end of year		$	9,475			$	10,475
	Deferred Services Revenue
	The Company offers maintenance contracts for sale on most of its products which allow for customers to receive service and support in addition to, or subsequent to, the expiration of the contractual product warranty. The Company also provides managed services to its customers under contractual arrangements. The Company recognizes the maintenance and managed services revenue from these contracts over the life of the service contract.
	Deferred services revenue, of which $170.7 million and $156.5 million is short-term and is included as a component of deferred revenue as of December 31, 2013 and 2012, respectively; and $83.1 million and $85.3 million is long-term and is included as a component of long-term deferred revenue as of December 31, 2013 and 2012, respectively, on the Consolidated Balance Sheets. Changes during the period are as follows (in thousands):
			December 31,
			2013				2012
	Balance at beginning of year		$	241,773			$	212,178
	Addition to deferred services revenue			354,893				349,022
	Amortization of deferred services revenue			(342,873	)			(319,427	)
	Balance at end of year		$	253,793			$	241,773
	The cost of providing these services for the years ended December 31, 2013, 2012, and 2011 was $148.1 million, $137.8 million, and $98.4 million, respectively.
	Officer and Director Indemnifications
	As permitted or required under Delaware law and to the maximum extent allowable under that law, the Company has certain obligations to indemnify its current and former officers and directors for certain events or occurrences while the officer or director is, or was serving, at the Company’s request in such capacity. The maximum potential amount of future payments the Company could be required to make under these indemnification obligations is unlimited; however, the Company has a director and officer insurance policy that mitigates the Company’s exposure and enables the Company to recover a portion of any future amounts paid. As a result of the Company’s insurance policy coverage, the Company believes the estimated fair value of these indemnification obligations is not material.
	Other Indemnifications
	As is customary in the Company’s industry, as provided for in local law in the U.S. and other jurisdictions, the Company’s standard contracts provide remedies to its customers, such as defense, settlement, or payment of judgment for intellectual property claims related to the use of its products. From time to time, the Company indemnifies customers against combinations of loss, expense, or liability arising from various trigger events related to the sale and the use of its products and services. In addition, from time to time the Company also provides protection to customers against claims related to undiscovered liabilities, additional product liabilities or environmental obligations.
Revenue Recognition	'
	Revenue Recognition:
	The Company recognizes revenue when persuasive evidence of an arrangement exists, title and risk of loss have transferred, product payment is not contingent upon performance of installation or service obligations, the price is fixed or determinable, and collectability is reasonably assured. In instances where final acceptance of the product or service is specified by the customer, revenue is deferred until all acceptance criteria have been met. Additionally, the Company recognizes maintenance service revenues on its hardware and software products ratably over the service periods of one to five years, and other services upon the completion of installation or professional services provided.
	Most of the Company’s products are integrated with software that is essential to the functionality of the equipment. Additionally, the Company provides unspecified software upgrades and enhancements related to most of these products through maintenance contracts.
	A multiple-element arrangement includes the sale of one or more tangible product offerings with one or more associated services offerings, each of which are individually considered separate units of accounting. The Company allocates revenue to each element in a multiple-element arrangement based upon the relative selling price of each deliverable. When applying the relative selling price method, the Company determines the selling price for each deliverable using vendor specific objective evidence (“VSOE”) of selling price, if it exists, or third party evidence (“TPE”) of selling price. If neither VSOE nor TPE of selling price exist for a deliverable, the Company uses its best estimate of selling price (“ESP”) for that deliverable. Revenue allocated to each element is then recognized when the other revenue recognition criteria are met for each element.
	VSOE is established based on the Company’s standard pricing and discounting practices for the specific product or service when sold separately. In determining VSOE, the Company requires that a substantial majority of the selling prices for a product or service fall within a reasonably narrow pricing range.
	When VSOE cannot be established, the Company attempts to establish the selling price of each element based on TPE. TPE is determined based on competitor prices for similar deliverables when sold separately.
	When the Company is unable to establish the selling price using VSOE or TPE, the Company uses ESP in its allocation of arrangement consideration. ESP represents the price at which the Company would transact a sale if the element were sold on a stand-alone basis. The Company determines ESP for a product by considering multiple factors including, but not limited to, geographies, market conditions, competitive landscape, and pricing practices. The determination of ESP is made based on review of historical sales price, taking into consideration the Company’s go-to-market strategy. Generally, the Company uses historical net selling prices to establish ESP. The Company regularly reviews its basis for establishing VSOE, TPE and ESP.
	Sales Returns, Channel Partner Programs and Incentives
	The Company records estimated reductions to revenues for channel partner programs and incentive offerings including special pricing agreements, promotions and other volume-based incentives. The Company also accrues for co-op marketing funds as a marketing expense if the Company receives an identifiable benefit in exchange and can reasonably estimate the fair value of the identifiable benefit received; otherwise, it is recorded as a reduction to revenues. The Company’s contracts generally do not provide for a right of return on any of our products. However, a limited number of contracts contain stock rotation rights. The Company records an estimate of future returns based upon these contractual rights and its historical returns experience.
Research and Development Expenditures and Software Development Costs	'
	Research and Development Expenditures and Software Development Costs
	Research and development expenditures are charged to operations as incurred and consist primarily of compensation costs, including stock-based compensation, outside services, expensed materials, depreciation and an allocation of overhead expenses, including facilities and IT costs.
	Software development costs incurred prior to the establishment of technological feasibility are included in research and development expenses as incurred. Eligible and material software development costs are capitalized upon the establishment of technological feasibility and before the general availability of such software products, including direct labor and related overhead costs, as well as stock-based compensation. The Company has defined technological feasibility as the establishment of a working model, which typically occurs when beta testing commences. In 2013, the Company capitalized approximately $2.4 million of development costs for software products to be marketed or sold to customers. There were no such costs capitalized in 2012 and 2011 as the software development costs qualifying for capitalization were insignificant. The capitalized costs are being amortized on a product-by-product basis using the straight-line method over the estimated product life, generally three years, or on the ratio of current revenues to total projected product revenues, whichever is greater. Management believes that the capitalized software costs will be recoverable from future gross profits generated by these products.
Advertising	'
	Advertising:
	The Company expenses the production costs of advertising as expenses are incurred. The production costs of advertising consist primarily of trade shows, online media, magazine and radio advertisements, agency fees and other direct production costs. Advertising expense for the years ended December 31, 2013, 2012, and 2011 was $14.9 million, $22.3 million, and $21.3 million, respectively.
Income Taxes	'
	Income Taxes:
	The Company accounts for income taxes under the liability method, which recognizes deferred tax assets and liabilities based on the difference between the financial statement and tax basis of assets and liabilities using enacted tax rates in effect for the year in which the differences are expected to affect taxable income. Valuation allowances are established to reduce deferred tax assets when, based on available objective evidence, it is more likely than not that the benefit of such assets will not be realized.
	The Company recognizes and measures benefits for uncertain tax positions using a two-step approach. The first step is to evaluate the tax position taken or expected to be taken in a tax return by determining if the weight of available evidence indicates that it is more likely than not that the tax position will be sustained upon audit, including resolution of any related appeals or litigation processes. For tax positions that are more likely than not to be sustained upon audit, the second step is to measure the tax benefit as the largest amount that is more than 50% likely to be realized upon settlement. Significant judgment is required to evaluate uncertain tax positions. The Company evaluates its uncertain tax positions on a quarterly basis. Evaluations are based upon a number of factors, including changes in facts or circumstances, changes in tax law, correspondence with tax authorities during the course of audits and effective settlement of audit issues. Changes in the recognition or measurement of uncertain tax positions could result in material increases or decreases in income tax expense in the period in which the change is made, which could have a material impact on the Company’s effective tax rate and operating results. The Company recognizes interest and/or penalties related to income tax matters in income tax expense.
Foreign Currency Translation	'
	Foreign Currency Translation:
	Assets and liabilities of non-U.S subsidiaries, where that local currency is the functional currency, are translated to U.S. dollars at exchange rates in effect at the balance sheet date and income and expense accounts are translated at average exchange rates in effect during the period. The resulting translation adjustments are directly recorded to a separate component of accumulated other comprehensive income. Foreign exchange transaction gains and losses from the remeasurement of non-functional currency denominated assets and liabilities have not been significant to date and are included in the Company’s Consolidated Statements of Operations as part of interest and other income (expense), net.
	As a result of the sale of the Company’s former enterprise wireless voice solutions (the “EWS”) business in December 2012 (see Note 3), which included a wholly owned Danish subsidiary with a Danish Krone functional currency, the Company recognized its associated currency translation adjustment balance of $1.1 million which effectively reduced the gain from sale of the discontinued operations.
	The following table sets forth the change of foreign currency translation adjustments during each reporting period and the balances as of December 31 (in thousands):
			2013				2012				2011
	Beginning balance		$	3,180			$	1,841			$	1,602
	Foreign currency translation adjustments			1,039				1,339				239
	Ending balance		$	4,219			$	3,180			$	1,841
Derivative Instruments	'
	Derivative Instruments:
	The accounting for changes in the fair value of a derivative depends on the intended use of the derivative and the resulting designation. For a derivative instrument designated and qualifying as a cash flow hedge, the effective portion of the derivative’s gain or loss is initially reported as a separate component of accumulated other comprehensive income and is subsequently reclassified into earnings when the hedged exposure affects earnings. The excluded and ineffective portions of the gain or loss are reported in earnings immediately. For derivative instruments that are not designated as cash flow hedges, changes in fair value are recognized in earnings in the period of change. The Company does not hold or issue derivative financial instruments for speculative trading purposes. The Company enters into derivatives only with counterparties that are among the largest U.S. banks, ranked by assets, in order to minimize its credit risk.
Net Income Per Share	'
	Net Income Per Share:
	Basic net income per share is computed by dividing net income by the weighted average number of common shares outstanding for the period. Diluted net income per share reflects the additional dilution from potential issuance of common stock, such as stock issuable pursuant to the exercise of stock options, unvested restricted stock units, and performance shares. Potentially dilutive shares are excluded from the computation of diluted net income per share when their effect is antidilutive.
	On June 1, 2011, the Company announced that its Board of Directors approved a two-for-one stock split of the Company’s outstanding shares of common stock effected in the form of a 100% stock dividend (“the stock split”). The stock split entitled each stockholder of record at the close of business on June 15, 2011 to receive one additional share of common stock for every one share of common stock owned as of that date, payable by the Company’s transfer agent on July 1, 2011. The par value of the Company’s common stock was maintained at the pre-split amount of $0.0005 per share. The Consolidated Financial Statements and notes thereto, including all share and per share data, have been restated as if the stock split had occurred as of the earliest period presented.
Fair Value Measurements	'
	Fair Value Measurements:
	The Company has certain financial assets and liabilities recorded at fair value which have been classified as Level 1, 2 or 3 within the fair value hierarchy. Fair values determined by Level 1 inputs utilize quoted prices (unadjusted) in active markets for identical assets or liabilities that the Company has the ability to access. Fair values determined by Level 2 inputs utilize data points that are observable such as quoted prices for similar assets in active markets, or identical or similar assets in inactive markets, interest rates and yield curves. Fair values determined by Level 3 inputs utilize unobservable data points for the asset or liability.
	The carrying amounts reflected in the Consolidated Balance Sheets for cash and cash equivalents, accounts receivable, accounts payable, and other accrued liabilities approximate fair value due to their short-term maturities.
Stock-Based Compensation	'
	Stock-Based Compensation:
	The Company’s stock-based compensation programs consist of grants of stock-based awards to employees and non-employee directors, including stock options, restricted stock units and performance shares, as well as purchase rights pursuant to the Company’s Employee Stock Purchase Plan (“ESPP”). The estimated fair value of these awards is charged against income over the requisite service period, which is generally the vesting period.
	The fair value of stock option and ESPP awards is estimated at the grant date using the Black-Scholes option valuation model. The fair value of restricted stock units is based on the market value of the Company’s common stock on the date of grant. Compensation expense for restricted stock units, including the effect of forfeitures, is recognized over the applicable service period. The fair value of performance shares is based on the market price of the Company’s stock on the date of grant and assumes that the performance criteria will be met and the target payout level will be achieved. Compensation cost is adjusted for subsequent changes in the outcome of performance-related conditions until the award vests. The fair value of a performance share with a market condition is estimated on the date of award, using a Monte Carlo simulation model to estimate the total return ranking of the Company’s stock in relation to the target index of companies over each performance period. Compensation cost on performance shares with a market condition is not adjusted for subsequent changes regardless of the level of ultimate vesting.
Business Combinations	'
	Business Combinations:
	The Company recognizes separately from goodwill the fair value of assets acquired and the liabilities assumed. Goodwill as of the acquisition date is measured as the excess of consideration transferred and the net of the acquisition date fair values of the assets acquired and the liabilities assumed. While the Company uses its best estimates and assumptions as a part of the purchase price allocation process to value assets acquired and liabilities assumed at the acquisition date, the Company’s estimates are inherently uncertain and subject to refinement. As a result, during the measurement period, which may be up to one year from the acquisition date, the Company may record adjustments retrospectively to the fair value of assets acquired and liabilities assumed, with the corresponding offset to goodwill. Upon the conclusion of the measurement period or final determination of the fair value of assets acquired or liabilities assumed, whichever comes first, any subsequent adjustments are recorded to the Company’s consolidated statements of operations.
	In addition, uncertain tax positions and tax-related valuation allowances assumed in connection with a business combination are initially estimated as of the acquisition date. The Company reevaluates these items quarterly and records any adjustments to the Company’s preliminary estimates to goodwill provided that the Company is within the measurement period and the Company continues to collect information in order to determine their estimated fair values as of the date of acquisition. Subsequent to the measurement period or the Company’s final determination of the tax allowance’s estimated value, changes to these uncertain tax positions and tax related valuation allowances will affect the Company’s provision for income taxes in the Company’s consolidated statements of operations.
Recent Pronouncements	'
	Recent Pronouncements:
	In July 2013, the Financial Accounting Standards Board (“FASB”) issued an accounting standard update which clarifies that an unrecognized tax benefit should be presented in the financial statements as a reduction to a deferred tax asset for a net operating loss carryforward, a similar tax loss, or a tax credit carryforward if such settlement is required or expected in the event the uncertain tax position is disallowed. In situations where a net operating loss carryforward, a similar tax loss, or a tax credit carryforward is not available at the reporting date under the tax law of the applicable jurisdiction or the tax law of the jurisdiction does not require, and the entity does not intend to use the deferred tax asset for such purpose, the unrecognized tax benefit should be presented in the financial statements as a liability and should not be combined with deferred tax assets. The guidance will be effective prospectively for reporting periods beginning after December 15, 2013. The Company is currently assessing the potential impact on the adoption of this guidance on its consolidated financial statements.
	In March 2013, the FASB issued an accounting standard update which requires the release of cumulative translation adjustments into net income when an entity ceases to have a controlling financial interest resulting in the complete or substantially complete liquidation of a subsidiary or group of assets within a foreign entity. The guidance will be effective prospectively for reporting periods beginning after December 15, 2013. The Company does not expect any material impact on the adoption of this guidance on its consolidated financial statements.
	In February 2013, the FASB issued an accounting standard update that requires an entity to expand the disclosure of reclassifications out of accumulated other comprehensive income (“AOCI”). The update requires companies to present reclassifications by component when reporting changes in AOCI balances and to report the effect of significant reclassifications on the respective line items in net income. The guidance is effective prospectively for reporting periods beginning after December 15, 2012. The Company adopted the guidance in the quarter ended March 31, 2013, and such adoption did not have a material impact on its consolidated financial statements.
	In December 2011, the FASB issued an accounting standard update that requires disclosure of the effect or potential effect of offsetting arrangements on a company’s financial position, as well as enhanced disclosure of the rights of setoff associated with a company’s recognized assets and liabilities. In January 2013, the FASB issued another accounting standard update to clarify the scope of the standard issued in December 2011. The Company adopted the guidance in the quarter ended March 31, 2013, and such adoption did not have a material impact on its consolidated financial statements.

Description_of_Business_and_Su2

Description of Business and Summary of Significant Accounting Policies: (Tables)	12 Months Ended
	Dec. 31, 2013
Revisions to Consolidated Financial Statements	'
	The following tables set forth a summary of the revisions to the Consolidated Financial Statements for the periods indicated:
		31-Dec-12											31-Dec-11
		As Previously Reported				Adjustment				As Revised			As Previously Reported			Adjustment			As Revised
	Consolidated Balance Sheets and Statements of Stockholders’ Equity
	Prepaid expenses and other current assets	$	55,454			$	(2,915	)		$	52,539		$	51,241		$	(1,504	)	$	49,737
	Total current assets	$	1,073,253			$	(2,915	)		$	1,070,338		$	994,408		$	(1,504	)	$	992,904
	Total assets	$	1,915,351			$	(2,915	)		$	1,912,436		$	1,844,805		$	(1,504	)	$	1,843,301
	Retained earnings	$	100,019			$	(2,915	)		$	97,104		$	118,265		$	(1,504	)	$	116,761
	Total stockholders’ equity	$	1,430,689			$	(2,915	)		$	1,427,774		$	1,370,116		$	(1,504	)	$	1,368,612
	Total liabilities and stockholders’ equity	$	1,915,351			$	(2,915	)		$	1,912,436		$	1,844,805		$	(1,504	)	$	1,843,301
		Year Ended December 31, 2012											Year Ended December 31, 2011
		As Previously Reported				Adjustment				As Revised			As Previously Reported			Adjustment			As Revised
	Consolidated Statements of Operations
	Provision for income taxes for continuing operations	$	38,056			$	1,411			$	39,467		$	5,246		$	978		$	6,224
	Net income (loss) from continuing operations	$	(35,558	)		$	(1,411	)		$	(36,969	)	$	125,908		$	(978	)	$	124,930
	Net income	$	9,755			$	(1,411	)		$	8,344		$	135,814		$	(978	)	$	134,836
	Basic Net Income (loss) Per Share:
	Net income (loss) per share from continuing operations	$	(0.20	)		$	(0.01	)		$	(0.21	)	$	0.71		$	(0.00	)	$	0.71
	Basic net income per share	$	0.06			$	(0.01	)		$	0.05		$	0.77		$	(0.01	)	$	0.76
	Diluted net income (loss) per share:
	Net income (loss) per share from continuing operations	$	(0.20	)		$	(0.01	)		$	(0.21	)	$	0.69		$	(0.00	)	$	0.69
	Diluted net income per share	$	0.06			$	(0.01	)		$	0.05		$	0.75		$	(0.01	)	$	0.74
	Consolidated Statements of Comprehensive Income
	Net income	$	9,755			$	(1,411	)		$	8,344		$	135,814		$	(978	)	$	134,836
	Comprehensive income	$	8,341			$	(1,411	)		$	6,930		$	140,312		$	(978	)	$	139,334
	Consolidated Statements of Cash Flows
	Operating activities
	Net income	$	9,755			$	(1,411	)		$	8,344		$	135,814		$	(978	)	$	134,836
	Changes in prepaid expenses and other current assets	$	(8,835	)		$	1,411			$	(7,424	)	$	(3,190	)	$	978		$	(2,212	)
	Amortization of discounts and premiums on investments, net	$	—			$	2,381			$	2,381		$	—		$	2,695		$	2,695
	Net cash provided by operating activities	$	186,980			$	2,381			$	189,361		$	299,645		$	2,695		$	302,340
	Investing activities
	Purchases of investments	$	(312,631	)		$	(2,381	)		$	(315,012	)	$	(372,567	)	$	(2,695	)	$	(375,262	)
	Net cash used in investing activities	$	(52,576	)		$	(2,381	)		$	(54,957	)	$	(237,683	)	$	(2,695	)	$	(240,378	)
Changes in Warranty Obligation	'
	Changes in the warranty obligation during the period, which is included as a component of “Other accrued liabilities” on the Consolidated Balance Sheets, are as follows (in thousands):
			December 31,
			2013				2012
	Balance at beginning of year		$	10,475			$	10,577
	Accruals for warranties issued during the year			16,307				18,432
	Actual charges against warranty reserve during the year			(17,307	)			(18,534	)
	Balance at end of year		$	9,475			$	10,475
Changes in Deferred Services Revenue	'
	Deferred services revenue, of which $170.7 million and $156.5 million is short-term and is included as a component of deferred revenue as of December 31, 2013 and 2012, respectively; and $83.1 million and $85.3 million is long-term and is included as a component of long-term deferred revenue as of December 31, 2013 and 2012, respectively, on the Consolidated Balance Sheets. Changes during the period are as follows (in thousands):
			December 31,
			2013				2012
	Balance at beginning of year		$	241,773			$	212,178
	Addition to deferred services revenue			354,893				349,022
	Amortization of deferred services revenue			(342,873	)			(319,427	)
	Balance at end of year		$	253,793			$	241,773
Change of Foreign Currency Translation Adjustments	'
	The following table sets forth the change of foreign currency translation adjustments during each reporting period and the balances as of December 31 (in thousands):
			2013				2012				2011
	Beginning balance		$	3,180			$	1,841			$	1,602
	Foreign currency translation adjustments			1,039				1,339				239
	Ending balance		$	4,219			$	3,180			$	1,841

Business_Combinations_Tables

Business Combinations (Tables)	12 Months Ended
	Dec. 31, 2013
Allocation of Total Purchase Consideration to Assets and Liabilities Assumed	'
	The following table summarizes the allocation of the total purchase consideration to the assets and liabilities assumed in 2011 as of the acquisition dates (in thousands):
	Tangible assets:
	Current assets	$	8,204
	Property and equipment		2,990
	Long-term assets		1,257
	Total tangible assets acquired		12,451
	Liabilities:
	Current liabilities		(7,786	)
	Long-term liabilities		(4,362	)
	Total liabilities assumed		(12,148	)
	Fair value of net assets acquired		303
	Intangible assets consisting of:
	Core and developed technology		20,600
	Customer and partner relationships		50,100
	Trade name		1,400
	In-Process Research and Development (“IPR&D”)		1,400
	Other		500
	Deferred tax liability		(1,625	)
	Goodwill		91,159
	Total consideration	$	163,837

Discontinued_Operations_Tables

Discontinued Operations (Tables)	12 Months Ended
	Dec. 31, 2013
Discontinued Operations	'
	Summarized results from discontinued operations were as follows (in thousands):
		Year ended December 31,
		2013			2012		2011
	Revenues	$	—		$	71,133	$	93,609
	Income from discontinued operations		—			15,973		16,066
	Income tax provision		—			6,085		6,160
	Net income from discontinued operations	$	—		$	9,888	$	9,906
	The carrying amounts of the net assets sold at December 4, 2012 were as follows (in thousands):
	Assets:
	Cash and cash equivalents	$	248
	Trade receivables, net		7,221
	Inventories		12,659
	Deferred taxes		(306	)
	Prepaid expenses and other assets		295
	Property and equipment, net		4,301
	Goodwill		30,872
	Purchased intangibles, net		5,724
	Assets sold	$	61,014
	Liabilities:
	Accounts payable	$	2,318
	Accrued payroll and related liabilities		1,877
	Deferred revenue		5,044
	Other accrued liabilities		1,605
	Deferred taxes		1,610
	Liabilities transferred	$	12,454
	Net assets sold	$	48,560
	The Company recorded a gain of $35.4 million in 2012 on the sale of discontinued operations (net of taxes) which was calculated as follows (in thousands):
	Cash proceeds received	$	50,659
	Less: costs incurred directly attributable to the transaction		929
	Net proceeds from sale of discontinued operations		49,730
	Less: book value of net assets sold		48,560
	Less: realization of foreign currency translation adjustment upon sale of foreign EWS subsidiary		1,141
	Gain from sale of discontinued operations		29
	Income tax benefit		(35,396	)
	Net gain from sale of discontinued operations	$	35,425

Goodwill_Purchased_Intangibles1

Goodwill, Purchased Intangibles, and Software Development Costs (Tables)	12 Months Ended
	Dec. 31, 2013
Schedule of Goodwill by Segment	'
	The following table sets forth the changes in carrying amount of goodwill in each of the Company’s segments in 2013 (in thousands):
		Segments
		Americas		EMEA			APAC		Total
	Balance at December 31, 2012	$	302,768	$	101,882		$	149,169	$	553,819
	Add: goodwill resulting from an acquisition		5,391		—			—		5,391
	Foreign currency translation		—		—			250		250
	Balance at December 31, 2013	$	308,159	$	101,882		$	149,419	$	559,460
Details of Purchased Intangible Assets by Major Class	'
	The following table sets forth details of the Company’s total purchased intangible assets and capitalized software development costs as of the following period (in thousands):
		December 31, 2013							December 31, 2012
	Purchased Intangible Assets	Gross		Accumulated			Net Value		Gross		Accumulated			Net Value
		Value		Amortization					Value		Amortization
				and Impairment							and Impairment
	Core and developed technology	$	81,178	$	(76,952	)	$	4,226	$	81,178	$	(67,514	)	$	13,664
	Customer and partner relationships		79,525		(48,941	)		30,584		79,025		(39,578	)		39,447
	Non-compete agreements		1,800		(500	)		1,300		—		—			—
	Trade name		3,400		(3,089	)		311		3,400		(2,746	)		654
	Other		4,462		(4,343	)		119		4,462		(4,162	)		300
	Finite-lived intangible assets		170,365		(133,825	)		36,540		168,065		(114,000	)		54,065
	Indefinite-lived trade name		918		—			918		918		—			918
	Total intangible assets	$	171,283	$	(133,825	)	$	37,458	$	168,983	$	(114,000	)	$	54,983
	Software development costs	$	2,365		(196	)		2,169	$	—	$	—		$	—
Estimated Future Amortization Expense of Purchased Intangible Assets	'

Balance_Sheet_Details_Tables

Balance Sheet Details (Tables)	12 Months Ended
	Dec. 31, 2013
Schedule of Inventories	'
	Inventories consist of the following (in thousands):
		December 31,
		2013		2012
	Raw materials	$	2,740	$	1,871
	Work in process		840		799
	Finished goods		99,729		97,290
		$	103,309	$	99,960
Prepaid Expenses and Other Current Assets	'
	Prepaid expenses and other current assets consist of the following (in thousands):
		December 31,
		2013		2012
	Non-trade receivables	$	9,251	$	10,463
	Prepaid expenses		31,164		35,489
	Derivative assets		6,748		4,158
	Other current assets		3,189		2,429
		$	50,352	$	52,539
Schedule of Property and Equipment	'
	Property and equipment, net, consist of the following (in thousands):
				December 31,
		Estimated useful Life		2013			2012
	Computer equipment and software		3 to 5 years	$	265,222		$	241,642
	Equipment, furniture and fixtures		1 to 7 years		113,214			101,784
	Tooling equipment		3 years		20,811			18,544
	Leasehold improvements		3 to 13 years		59,595			59,931
					458,842			421,901
	Less: Accumulated depreciation and amortization				(343,685	)		(288,582	)
				$	115,157		$	133,319
Schedule of Deferred Revenues	'
	Deferred revenues consist of the following (in thousands):
		December 31,
		2013		2012
	Short-term:
	Service	$	170,701	$	156,487
	Product		307		595
	License		1,400		1,400
		$	172,408	$	158,482
	Long-term:
	Service	$	83,092	$	85,286
	Product		—		—
	License		4,375		5,775
		$	87,467	$	91,061
Schedule of Other Accrued Liabilities	'
	Other accrued liabilities consist of the following (in thousands):
		December 31,
		2013		2012
	Accrued expenses	$	22,515	$	19,165
	Accrued co-op expenses		4,629		4,571
	Restructuring reserves		11,238		5,347
	Warranty obligations		9,475		10,475
	Derivative liability		6,780		3,273
	Employee stock purchase plan withholding		10,883		10,186
	Other accrued liabilities		12,224		10,001
		$	77,744	$	63,018

Restructuring_Costs_Tables

Restructuring Costs (Tables)	12 Months Ended
	Dec. 31, 2013
Summary of Activity of Restructuring Reserves	'
	The following table summarizes the activity of the Company’s restructuring reserves (in thousands):
		Severance/Other			Facilities			Projects			Total
								Discontinued
	Balance at December 31, 2010	$	2,524			697		$	—			3,221
	Additions to the reserve		8,698			698			—			9,396
	Cash payments and other usage		(8,736	)		(941	)		—			(9,677	)
	Balance at December 31, 2011	$	2,486		$	454		$	—		$	2,940
	Additions to the reserve		13,090			11,730			—			24,820
	Non-cash write-off of leasehold improvements		—			(2,796	)		—			(2,796	)
	Cash payments and other usage		(14,214	)		(1,924	)		—			(16,138	)
	Balance at December 31, 2012	$	1,362		$	7,464		$	—		$	8,826
	Additions to the reserve		10,185			38,231			2,880			51,296
	Non-cash write-off of leasehold improvements		—			(3,547	)		—			(3,547	)
	Cash payments and other usage		(10,404	)		(8,362	)		(2,880	)		(21,646	)
	Balance at December 31, 2013	$	1,143		$	33,786		$	—		$	34,929

Debt_Tables

Debt (Tables)	12 Months Ended
	Dec. 31, 2013
Interest Expense Recognized Related to Term Loan	'
	The following table sets forth total interest expense recognized related to the Term Loan (in thousands):
		2013
	Contractual interest expense	$	1,605
	Amortization of debt issuance costs		178
		$	1,783

Investments_and_Fair_Value_Mea1

Investments and Fair Value Measurements (Tables)	12 Months Ended
	Dec. 31, 2013
Short-Term and Long-Term Investments in Debt and Equity Securities	'
	In addition, the Company has short-term and long-term investments in debt and equity securities which are summarized as follows: (in thousands):
			Cost Basis		Unrealized			Unrealized			Fair Value
					Gains			Losses
	Balances at December 31, 2013:
	Investments—Short-term:
	U.S. government securities		$	19,792	$	9		$	—		$	19,801
	U.S. government agency securities			38,388		16			(3	)		38,401
	Non-U.S. government securities			13,734		10			—			13,744
	Corporate debt securities			62,720		22			(4	)		62,738
	Total investments – short-term		$	134,634	$	57		$	(7	)	$	134,684
	Investments—Long-term:
	U.S. government securities		$	12,252	$	8		$	—		$	12,260
	U.S. government agency securities			30,627		12			(3	)		30,636
	Non-U.S. government securities			2,305		4			—			2,309
	Corporate debt securities			11,152		15			—			11,167
	Total investments – long-term		$	56,336	$	39		$	(3	)	$	56,372
	Balances at December 31, 2012:
	Investments—Short-term:
	U.S. government securities		$	24,205	$	3		$	—		$	24,208
	U.S. government agency securities			101,036		39			(5	)		101,070
	Non-U.S. government securities			1,527		—			—			1,527
	Corporate debt securities			70,386		20			(15	)		70,391
	Total investments – short-term		$	197,154	$	62		$	(20	)	$	197,196
	Investments—Long-term:
	U.S. government securities		$	6,396	$	4		$	—		$	6,400
	U.S. government agency securities			22,145		17			(2	)		22,160
	Non-U.S. government securities			422		—			—			422
	Corporate debt securities			21,368		—			(17	)		21,351
	Total investments – long-term		$	50,331	$	21		$	(19	)	$	50,333
Schedule of Investment in Unrealized Loss Position	'
	The following table summarizes the fair value and gross unrealized losses of the Company’s investments, including those securities that are categorized as cash equivalents, with unrealized losses, aggregated by type of investment instrument and length of time that individual securities have been in a continuous unrealized loss position as of December 31, 2013 and 2012 (in thousands):
			Less than 12 Months					12 Months or Greater						Total
			Fair Value		Gross			Fair Value			Gross			Fair Value		Gross
					Unrealized						Unrealized					Unrealized
					Losses						Losses					Losses
	December 31, 2013:
	U.S. government agency securities			5,533		(6	)		—			—			5,533		(6	)
	Corporate debt securities			9,837		(3	)		1,504			(1	)		11,341		(4	)
	Total investments		$	15,370	$	(9	)	$	1,504		$	(1	)	$	16,874	$	(10	)
	December 31, 2012:
	U.S. government agency securities			21,768		(7	)		—			—			21,768		(7	)
	Corporate debt securities			43,743		(32	)		1,999			—			45,742		(32	)
	Total investments		$	65,511	$	(39	)	$	1,999		$	—		$	67,510	$	(39	)
Schedule of Fair Value of Marketable Securities and Foreign Currency Contracts	'
	During 2013, there were no transfers between the different levels of fair value measurements. At December 31, 2013, the fair value of the Company’s marketable securities and foreign currency contracts was determined using the following inputs (in thousands):
					Fair Value Measurements at Reporting Date Using
	Description		Total		Quoted Prices in Active			Significant Other
					Markets for Identical			Observable Inputs
					Assets
					(Level 1)			(Level 2)
	Assets:
	Fixed income available-for-sale securities(a)		$	211,151	$	17,596		$	193,555
	Foreign currency forward contracts(b)		$	6,748	$	—		$	6,748
	Liabilities:
	Foreign currency forward contracts(c)		$	6,780	$	—		$	6,780
	(a)	Included in cash and cash equivalents and short- and long-term investments on the Company’s Consolidated Balance Sheets.
	(b)	Included in short-term derivative asset as prepaid expenses and other current assets on the Company’s Consolidated Balance Sheets.
	(c)	Included in short-term derivative liability as other accrued liabilities on the Company’s Consolidated Balance Sheets.

Commitments_and_Contingencies_

Commitments and Contingencies (Tables)	12 Months Ended
	Dec. 31, 2013
Future Minimum Lease Payments Under Operating Lease	'
	The Company leases certain office facilities and equipment under noncancelable operating leases expiring between 2014 and 2023. As of December 31, 2013, the following future minimum lease payments are due under the current lease obligations (in thousands). There were no sublease income assumptions included in the future minimum lease payments, as the amounts are not material. In addition to these minimum lease payments, the Company is contractually obligated under the majority of its operating leases to pay certain operating expenses during the term of the lease such as maintenance, taxes and insurance.
		Minimum
		Lease
		Payments
	Year Ending December 31,
	2014	$	32,637
	2015		27,294
	2016		20,125
	2017		17,701
	2018		15,592
	Thereafter		48,839
	Total	$	162,188

Foreign_Currency_Derivatives_T

Foreign Currency Derivatives (Tables)	12 Months Ended
	Dec. 31, 2013
Derivative Instruments Measured at Gross Fair Value as Reflected in Consolidated Balance Sheets	'
	The estimates of fair value are based on applicable and commonly quoted prices and prevailing financial market information as of December 31, 2013. See Note 9 of Notes to Consolidated Financial Statements for additional information on the fair value measurements for all financial assets and liabilities, including derivative assets and derivative liabilities that are measured at fair value in the Consolidated Financial Statements on a recurring basis. The following table sets forth the Company’s derivative instruments measured at gross fair value as reflected in the consolidated balance sheets as of December 31, 2013 and 2012 (in thousands):
			December 31, 2013							December 31, 2012
			Fair Value of			Fair Value of Derivatives				Fair Value of				Fair Value of Derivatives
			Derivatives Designated			Not Designated as Hedge				Derivatives Designated				Not Designated as Hedge
			as Hedge Instruments			Instruments				as Hedge Instruments				Instruments
	Derivative assets(a):
	Foreign exchange contracts		$	4,457		$	2,291			$	2,992			$	1,166
	Derivative liabilities(b):
	Foreign exchange contracts		$	4,235		$	2,545			$	1,760			$	1,513
	(a)	All derivative assets are recorded as prepaid expenses and other current assets in the Consolidated Balance Sheets.
	(b)	All derivative liabilities are recorded as other accrued liabilities in the Consolidated Balance Sheets.
Offsetting of Derivative Assets	'
	The following table sets forth the offsetting of derivative assets as of December 31, 2013 and 2012 (in thousands):
						Gross				Net Amounts				Gross Amounts Not Offset in the
			Gross			Amounts				Of Assets				Consolidated Balance Sheets
			Amounts of			Offset in the				Presented In the								Cash
			Recognized			Consolidated				Consolidated				Financial				Collateral		Net
			Assets			Balance Sheets				Balance Sheets				Instruments				Pledged		Amount
	As of December 31, 2013:
	Foreign exchange contracts		$	6,748		$	—			$	6,748			$	(5,643	)		$	—	$	1,105
	As of December 31, 2012:
	Foreign exchange contracts		$	4,158		$	—			$	4,158			$	(3,227	)		$	—	$	931
Offsetting of Derivative Liabilities	'
	The following table sets forth the offsetting of derivative liabilities as of December 31, 2013 and 2012 (in thousands):
						Gross				Net Amounts				Gross Amounts Not Offset in the
			Gross			Amounts				Of Assets				Consolidated Balance Sheets
			Amounts of			Offset in the				Presented In the								Cash
			Recognized			Consolidated				Consolidated				Financial				Collateral		Net
			Liabilities			Balance Sheets				Balance Sheets				Instruments				Pledged		Amount
	As of December 31, 2013:
	Foreign exchange contracts		$	6,780		$	—			$	6,780			$	(5,643	)		$	—	$	1,137
	As of December 31, 2012:
	Foreign exchange contracts		$	3,273		$	—			$	3,273			$	(3,227	)		$	—	$	46
Not Designated as Hedging Instrument	'
Schedule of Notional Amount of Foreign Currency	'
	The following table summarizes the Company’s notional position by currency, and approximate U.S. dollar equivalent, at December 31, 2013 of the outstanding non-designated hedges (foreign currency and dollar amounts in thousands):
			Original Maturities											Original Maturities
			of 360 Days or Less											of Greater than 360 Days
			Foreign			USD				Positions				Foreign				USD		Positions
			Currency			Equivalent								Currency				Equivalent
	Brazilian Real			3,022		$	1,290				Buy				—			$	—		—
	Brazilian Real			8,460		$	3,557				Sell				—			$	—		—
	British Pound			3,978		$	6,540				Buy				10,595			$	16,750		Buy
	British Pound			2,338		$	3,863				Sell				13,176			$	20,422		Sell
	Euro			2,983		$	4,110				Buy				11,608			$	15,640		Buy
	Euro			6,463		$	8,892				Sell				48,654			$	65,842		Sell
	Israeli Shekel			22,156		$	6,394				Buy				49,055			$	13,103		Buy
	Israeli Shekel			58,148		$	16,670				Sell				—			$	—		—
	Japanese Yen			333,876		$	3,180				Buy				—			$	—		—
	Japanese Yen			741,012		$	7,137				Sell				—			$	—		—
	Mexican Peso			9,289		$	710				Buy				—			$	—		—
	Mexican Peso			20,547		$	1,564				Sell				—			$	—		—
Effect of Derivative Instruments in Consolidated Statements of Operations	'
	The following table shows the effect of the Company’s non-designated hedges in the consolidated statement of operations for the twelve months ended December 31, 2013 (in thousands):
	Derivatives Not Designated as Hedging		Location of Gain or (Loss)		Amount of Gain or (Loss)
	Instruments		Recognized in Income on Derivative		Recognized in Income on Derivative
	Foreign exchange contracts		Interest and other income (expense), net		($411)
Cash Flow Hedging	'
Schedule of Notional Amount of Foreign Currency	'
	The following table summarizes the Company’s notional position by currency, and approximate U.S. dollar equivalent, at December 31, 2013 of the outstanding cash flow hedges, all of which are carried at fair value on the consolidated balance sheet (foreign currency and dollar amounts in thousands):
			Original Maturities											Original Maturities
			of 360 Days or Less											of Greater than 360 Days
			Foreign			USD				Positions				Foreign				USD		Positions
			Currency			Equivalent								Currency				Equivalent
	Chinese Yuan			91,600		$	14,973				Buy				—			$	—		—
	Euro			—		$	—				—				25,192			$	33,301		Buy
	Euro			—		$	—				—				54,146			$	71,802		Sell
	British Pound			—		$	—				—				20,705			$	32,115		Buy
	British Pound			—		$	—				—				18,824			$	29,421		Sell
	Israeli Shekel			—		$	—				—				87,345			$	24,085		Buy
Effect of Derivative Instruments in Consolidated Statements of Operations	'
	The following tables show the effect of the Company’s derivative instruments designated as cash flow hedges in the Consolidated Statements of Operations (in thousands):
			Year Ended December 31, 2013
			Gain or (Loss)			Location of Gain or (Loss)		Gain or (Loss)				Location of Gain or (Loss)				Gain or (Loss)
			Recognized in			Reclassified from OCI into		Reclassified				Recognized—Ineffective				Recognized—
			OCI—Effective			Income—Effective		from OCI				Portion and Amount				Ineffective
			Portion			Portion		into Income—				Excluded from				Portion and
								Effective				Effectiveness Testing				Amount Excluded
								Portion								from Effectiveness
																Testing(a)
	Foreign exchange contracts		$	1,374		Product revenues		$	207				Interest and other income (expense), net			$	368
						Cost of revenues			279
						Sales and marketing			233
						Research and			1,425
						development
						General and			164
						administrative
	Total		$	1,374				$	2,308							$	368
			Year Ended December 31, 2012
			Gain or (Loss)			Location of Gain or (Loss)		Gain or (Loss)				Location of Gain or (Loss)				Gain or (Loss)
			Recognized in			Reclassified from OCI into		Reclassified				Recognized—Ineffective				Recognized—
			OCI—Effective			Income—Effective		from OCI				Portion and Amount				Ineffective
			Portion			Portion		into Income—				Excluded from				Portion and
								Effective Portion				Effectiveness Testing				Amount Excluded
																from Effectiveness
																Testing(a)
	Foreign exchange contracts		$	1,018		Product revenues		$	7,133				Interest and other income (expense), net			$	42
						Cost of revenues			(607	)
						Sales and marketing			(974	)
						Research and			(774	)
						development
						General and			(1,044	)
						administrative
	Total		$	1,018				$	3,734							$	42
	(a)	For the year ended December 31, 2013, there were no gains or losses for the ineffective portion. For the year ended December 31, 2012, the loss recorded for the ineffective portion was immaterial.

Stockholders_Equity_and_Stockb1

Stockholders' Equity and Stock-based Compensation (Tables)	12 Months Ended
	Dec. 31, 2013
Changes in Accumulated Other Comprehensive Income (Loss) by Component	'
	The following table summarizes the changes in accumulated other comprehensive income, net of tax, by component for the year ended December 31, 2013 (in thousands). The tax effects were not shown separately, as the impacts were not material.
			Unrealized				Unrealized Gains and Losses on				Foreign		Total
							Available-for-				Currency
			Gains and Losses on Cash				Sale Securities				Translation
			Flow Hedges
	Balance as of December 31, 2012		$	1,014			$	2			$	3,180	$	4,196
	Other comprehensive income before reclassifications			1,374				18				1,039		2,431
	Amounts reclassified from accumulated other comprehensive income (a)			(2,308	)			53				—		(2,255	)
	Net current-period other comprehensive income			(934	)			71				1,039		176
	Balance as of December 31, 2013		$	80			$	73			$	4,219	$	4,372
	(a)	See Note 12 for details of gains and losses, net of taxes, reclassified out of accumulated other comprehensive income into net income related to cash flow hedges and each line item of net income affected by the reclassification. Gains and losses related to available-for-sale securities were reclassified into interest and other income (expense), net in the Consolidated Statements of Operations, net of taxes.
Activity Under Share-Based Compensation Plan	'
	Activity under the above plans for the year ended December 31, 2013 was as follows:
						Outstanding Options										Aggregate
																Intrinsic
																Value (in
			Shares				Number of				Weighted Avg		Weighted Avg			thousands)
			Available for				Shares				Exercise Price		Contractual
			Grant(1)										Term (Years)
	Balances, December 31, 2012			9,230,011				1,440,133			$	12.68
	Additional shares available for grant (2)			10,500,000				—				—
	Performance shares granted			(3,202,038	)			—				—
	Performance shares forfeited			3,808,784				—				—
	Restricted stock units granted			(9,802,302	)			—				—
	Restricted stock units forfeited			3,277,890				—				—
	Options granted			—				—				—
	Options exercised			—				(282,396	)		$	10.1
	Options forfeited			460,519				(460,519	)		$	12.8
	Options expired			(70	)			—				—
	Balances, December 31, 2013			14,272,794				697,218			$	13.64
	Options vested and expected to vest as of December 31, 2013 (3)			—				689,924			$	13.66		2.73		$	36
	·	For purposes of this table, shares are counted on a fungible basis for full value award activity.
	·	Approved by stockholders on June 5, 2013.
	-3	Options expected to vest are the result of applying the pre-vesting forfeiture rate assumption to total outstanding options.
Options Outstanding and Exercisable by Range of Exercise Price	'
	The options outstanding and currently exercisable by exercise price at December 31, 2013, are as follows:
			Stock Options Outstanding										Stock Options Exercisable
	Range of Exercise Price		Number				Weighted				Weighted		Number			Weighted		Weighted
			Outstanding				Average				Average		Exercisable			Average		Average
							Remaining				Exercise					Remaining		Exercise
							Contractual				Price					Contractual		Price
							Life (Yrs)									Life (Yrs)
	$0.75-$0.75			3,477				2.44			$	0.75		3,100				$	0.75
	$11.61-$11.61			351,818				5.02			$	11.61		180,157				$	11.61
	$11.67-$16.65			198,133				0.66			$	14.72		198,133				$	14.72
	$17.42-$17.42			143,790				0.1			$	17.42		143,790				$	17.42
				697,218				2.76			$	13.64		525,180			1.97	$	14.31
Changes in Unvested Performance Shares and Restricted Stock Units and Non-Employee Director Restricted Stock Units	'
	The following table summarizes the changes in unvested performance shares and RSUs and non-employee director RSUs for 2013:
			Number of				Weighted Avg
			Shares (1)				Grant Date
							Fair Value
	Unvested shares at December 31, 2012			8,305,508			$	17.03
	Performance shares granted			1,836,284			$	9.3
	Restricted stock units granted (2)			5,870,349			$	10.24
	Performance shares vested and issued			(156,128	)		$	9.74
	Restricted stock units vested and issued			(2,672,336	)		$	15.98
	Performance shares forfeited			(2,096,944	)		$	15.95
	Restricted stock units forfeited			(1,881,271	)		$	13.29
	Unvested shares at December 31, 2013			9,205,462			$	12.59
	-1	For purposes of this table, shares are counted on a one-for-one basis, not on a fungible share counting basis.
	-2	Includes 126,666 restricted stock units granted to non-employee directors.
Summary and Allocation of Stock-Based Compensation Expense	'
	The following table summarizes stock-based compensation expense recorded and its allocation within the Consolidated Statements of Operations (in thousands):
			Year Ended December 31,
			2013				2012				2011
	Cost of sales—product		$	2,892			$	3,593			$	2,501
	Cost of sales—service			5,852				6,611				3,766
	Stock-based compensation expense included in cost of sales			8,744				10,204				6,267
	Sales and marketing			26,570				36,791				27,022
	Research and development			15,634				20,195				14,850
	General and administrative			13,517				21,571				15,714
	Stock-based compensation expense included in operating expenses			55,721				78,557				57,586
	Stock-based compensation expense			64,465				88,761				63,853
	Less: tax benefit			11,174				21,880				5,134
	Stock-based compensation costs related to employee equity awards and employee stock purchases, net of tax		$	53,291			$	66,881			$	58,719
Significant Assumptions Used to Estimate Fair Value of Employee Stock Options	'
	The fair value of each employee stock option grant was estimated on the date of grant using the Black-Scholes option valuation model based on the following assumptions:
			2012
	Expected volatility			51.24	%
	Risk-free interest rate			0.5	%
	Expected dividends			—	%
	Expected life (yrs)			3.7
Significant Assumptions Used to Estimate Fair Value of Employee Stock Purchase Plan	'
	The estimated fair value per share of employee stock purchase rights granted pursuant to ESPP in 2013, 2012, and 2011 ranged from $2.60 to $4.57, from $2.69 to $8.40, and from $5.51 to $9.98, respectively, and was estimated on the date of grant using the Black-Scholes option valuation model based on the following assumptions:
			2013			2012			2011
	Expected volatility		42.40-48.89	%		48.27-61.78	%		39.57	%
	Risk-free interest rate		0.08-0.35	%		0.09-0.24	%		0.24	%
	Expected dividends		—	%		—	%		—	%
	Expected life (yrs)		0.5-2.0			0.5-2.0			1.03

Income_Taxes_Tables

Income Taxes (Tables)	12 Months Ended
	Dec. 31, 2013
Components of Income Tax Expense	'
	Income tax expense (benefit) consists of the following (in thousands):
		Year Ended December 31,
		2013			2012			2011
	Income tax expense from continuing operations:
	Current
	Federal	$	(953	)	$	44,569		$	3,825
	State		(72	)		3,283			2,240
	Foreign		8,604			9,488			6,445
			7,579			57,340			12,510
	Deferred
	Federal		(10,715	)		(13,372	)		(3,528	)
	State		(818	)		(1,308	)		433
	Foreign		285			(3,193	)		(3,191	)
			(11,248	)		(17,873	)		(6,286	)
	Total income tax expense (benefit) from continuing operations	$	(3,669	)	$	39,467		$	6,224
	Income tax expense (benefit) from discontinued operations	$	96		$	(29,311	)	$	6,160
Sources of Income Before Provision for Income Taxes	'
	Income from continuing operations before income taxes is categorized geographically as follows (in thousands):
		Year Ended December 31,
		2013			2012			2011
	United States	$	(17,823	)	$	(37,025	)	$	25,394
	Foreign		(4,381	)		39,523			105,760
	Total income (loss) from continuing operations before income taxes	$	(22,204	)	$	2,498		$	131,154
Reconciliation of Tax Provision Computed Using Statutory Rates to Effective Income Tax Provision	'
	The Company’s tax provision from continuing operations differs from the provision computed using statutory tax rates as follows (in thousands):
		Year ended December 31,
		2013			2012			2011
	Federal tax at statutory rate	$	(7,771	)	$	2,194		$	46,827
	State taxes, net of federal benefit		(1,571	)		2,354			2,673
	Non-deductible share based compensation		2,900			6,143			3,467
	Foreign income at tax rates different than U.S. rates		7,104			(10,176	)		(37,980	)
	Changes in reserves for uncertain tax positions		(2,497	)		(3,926	)		(8,852	)
	Research and development tax credit		(4,243	)		(268	)		(3,008	)
	Domestic production activities deduction		(757	)		(1,136	)		(574	)
	Gain on intercompany debt		—			36,163			—
	Non-deductible executive compensation		460			358			438
	Subpart F income		716			657			657
	Non-deductible acquisition and divestiture costs		(355	)		4,782			1,025
	Sale of intellectual property		2,947			2,356			1,424
	Foreign tax credit		(359	)		(264	)		(211	)
	Other		(243	)		230			338
	Tax provision (benefit)	$	(3,669	)	$	39,467		$	6,224
Summary of Temporary Differences Resulting in Deferred Tax Assets (Liabilities)	'
	The tax effects of temporary differences that give rise to the deferred tax assets (liabilities) are presented below (in thousands):
		December 31,
		2013			2012
	Property and equipment, net, principally due to differences in depreciation	$	6,508		$	8,208
	Capitalized research and development costs		425			504
	Acquired intangibles		3,742			2,274
	Inventory		6,910			5,887
	Restructuring reserves		10,214			2,851
	Deferred revenue		13,699			13,964
	Other reserves		17,570			16,442
	Share-based compensation		15,906			20,065
	Net operating loss and capital loss carryforwards		2,511			3,302
	Tax credit carryforwards		16,457			12,977
	Deferred tax asset		93,942			86,474
	Acquired intangibles		(2,249	)		(6,226	)
	Net deferred tax asset before valuation allowance	$	91,693		$	80,248
	Valuation allowance		(3,359	)		(3,161	)
	Net deferred tax asset, net of valuation allowance	$	88,334		$	77,087
Aggregate Changes in Gross Unrecognized Tax Benefits	'
	The aggregate changes in the balance of the Company’s gross unrecognized tax benefits were as follows for the periods indicated (in thousands):
		December 31,
		2013			2012			2011
	Beginning balance	$	23,049		$	32,408		$	36,923
	Additions based on tax positions taken during a prior period		—			304			1,130
	Reductions based on tax positions taken during a prior period		—			(5,690	)		(415	)
	Additions based on tax positions taken during the current period		1,414			310			2,411
	Reductions related to settlement of tax matters		—			(807	)		(6,873	)
	Reductions related to a lapse of applicable statute of limitations		(2,451	)		(3,476	)		(768	)
	Ending balance	$	22,012		$	23,049		$	32,408

Net_Income_Per_Share_Disclosur1

Net Income Per Share Disclosures (Tables)	12 Months Ended
	Dec. 31, 2013
Reconciliation of Numerator and Denominator of Basic and Diluted Net Income Per Share	'
	The following table sets forth the computation of basic and diluted income (loss) per share (in thousands, except per-share amounts):
		Year ended December 31,
		2013			2012			2011
	Numerator
	Net income (loss) per share from continuing operations	$	(18,535	)	$	(36,969	)	$	124,930
	Income from discontinued operations, net of taxes		—			9,888			9,906
	Gain from sale of discontinued operations, net of taxes		459			35,425			—
	Net income (loss)	$	(18,076	)	$	8,344		$	134,836
	Denominator
	Weighted average shares outstanding, basic		167,272			176,878			176,426
	Effect of dilutive potential common shares		—			—			4,769
	Weighted average shares outstanding, diluted		167,272			176,878			181,195
	Basic net income (loss) per share:
	Net income (loss) per share from continuing operations	$	(0.11	)	$	(0.21	)	$	0.71
	Income from discontinued operations, net of taxes		—			0.06			0.06
	Gain from sale of discontinued operations, net of taxes		—			0.2			—
		$	(0.11	)	$	0.05		$	0.76
	Diluted net income (loss) per share:
	Net income (loss) per share from continuing operations	$	(0.11	)	$	(0.21	)	$	0.69
	Income from discontinued operations, net of taxes		—			0.06			0.05
	Gain from sale of discontinued operations, net of taxes		—			0.2			—
		$	(0.11	)	$	0.05		$	0.74
	Antidilutive employee stock-based awards, excluded		5,045			4,998			—

Business_Segment_Information_T

Business Segment Information (Tables)	12 Months Ended
	Dec. 31, 2013
Financial Information by Reportable Segment	'
	Financial information for each reportable geographical segment as of and for the fiscal years ended December 31, 2013, 2012, and 2011, based on the Company’s internal management system and as utilized by the Company’s Chief Operating Decision Maker (CODM), its Chief Executive Officer, is as follows (in thousands) :
		Americas			EMEA			APAC			Total
	2013:00:00
	Revenue*	$	694,522		$	338,035		$	335,832		$	1,368,389
	% of total revenue		50	%		25	%		25	%		100	%
	Contribution margin		270,786			142,686			136,462			549,934
	% of segment revenue		39	%		42	%		41	%		40	%
	2012:00:00
	Revenue*	$	689,099		$	345,723		$	357,806		$	1,392,628
	% of total revenue		49	%		25	%		26	%		100	%
	Contribution margin		281,229			138,886			147,699			567,814
	% of segment revenue		41	%		40	%		41	%		41	%
	2011:00:00
	Revenue*	$	693,288		$	347,703		$	361,198		$	1,402,189
	% of total revenue		49	%		25	%		26	%		100	%
	Contribution margin		280,259			141,421			175,242			596,922
	% of segment revenue		40	%		41	%		49	%		43	%
	At December 31, 2013:
	Gross accounts receivable		86,243			71,970			66,921			225,134
	% of total gross accounts receivable		38	%		32	%		30	%		100	%
	At December 31, 2012:
	Gross accounts receivable		100,494			67,529			71,128			239,151
	% of total gross accounts receivable		42	%		28	%		30	%		100	%
	At December 31, 2011:
	Gross accounts receivable		96,318			77,975			71,659			245,952
	% of total gross accounts receivable		39	%		32	%		29	%		100	%
	*The United States and China, individually, accounted for more than 10% of the Company’s revenues in 2013, 2012 and 2011. Net revenues in the United States were $589.6 million, $583.0 million, and $593.6 million for the years ended December 31, 2013, 2012, and 2011, respectively. Net revenues in China were $147.3 million, $159.3 million, and $161.5 million for the years ended December 31, 2013, 2012 and 2011, respectively. During 2013, 2012, and 2011, one customer from the Americas segment, ScanSource Communications, accounted for 16%, 14%, and 14%, respectively, of the Company’s revenues. At December 31, 2013, ScanSource accounted for 11% of total gross accounts receivable and no single customer accounted for more than 10% of gross accounts receivable at December 31, 2012 and 2011.
Reconciliation of Segment Information to Consolidated Totals	'
	The following tables set forth the reconciliation of segment information to Polycom consolidated totals (in thousands):
		Year Ended December 31,
		2013			2012			2011
	Segment contribution margin	$	549,934		$	567,814		$	596,922
	Corporate and unallocated costs		(430,471	)		(418,465	)		(369,412	)
	Stock-based compensation		(64,465	)		(88,761	)		(63,853	)
	Effect of stock-based compensation cost on warranty expense		(547	)		(669	)		(546	)
	Transaction-related costs		(3,424	)		(14,064	)		(9,688	)
	Amortization of purchased intangibles		(19,750	)		(17,465	)		(11,201	)
	Restructuring costs		(48,470	)		(22,024	)		(9,396	)
	Interest and other income (expense), net		(5,011	)		(3,868	)		(1,672	)
	Income (loss) from continuing operations before provision for income taxes	$	(22,204	)	$	2,498		$	131,154
		December 31,
		2013			2012			2011
	Gross accounts receivables	$	225,134		$	239,151		$	245,952
	Returns and related reserves		(38,938	)		(41,576	)		(33,416	)
	Allowance for doubtful accounts		(2,827	)		(2,921	)		(1,732	)
	Total trade receivables, net	$	183,369		$	194,654		$	210,804
Revenues by Groups of Similar Products and Services	'
	The following table sets forth the Company’s revenues by groups of similar products and services as follows (in thousands):
		Year ended December 31,
		2013			2012			2011
	Net Revenues:
	UC group systems	$	904,923		$	956,153		$	971,753
	UC personal devices		219,103			180,939			175,673
	UC platform		244,363			255,536			254,763
	Total	$	1,368,389		$	1,392,628		$	1,402,189
Fixed Assets, Net of Accumulated Depreciation by Geographical Area	'
	The Company’s fixed assets, net of accumulated depreciation, are located in the following geographical areas (in thousands):
		December 31,
		2013			2012
	United States	$	79,345		$	89,830
	EMEA		13,036			15,148
	APAC		21,403			26,408
	Other		1,373			1,933
	Total	$	115,157		$	133,319

Supplementary_Financial_Data_T

Supplementary Financial Data (Tables)	12 Months Ended
	Dec. 31, 2013
Schedule of Quarterly Financial Information	'
		2013										2012
		Fourth			Third			Second		First		Fourth			Third			Second		First
		Quarter			Quarter			Quarter		Quarter		Quarter			Quarter			Quarter		Quarter
	Revenue	$	347,942		$	336,461		$	345,234	$	338,752	$	353,026		$	335,392		$	358,500	$	345,710
	Gross profit	$	197,032		$	195,044		$	201,598	$	199,097	$	206,816		$	196,358		$	213,922	$	206,336
	Net income (loss) from continuing operations	$	(1,969	)	$	(23,978	)	$	5,295	$	2,117	$	(35,689	)	$	(15,406	)	$	1,962	$	12,164
	Net income from operations of discontinued operations	$	—		$	—		$	—	$	—	$	2,178		$	645		$	4,313	$	2,752
	Net gain from sale of discontinued operations	$	—		$	—		$	—	$	459	$	35,425		$	—		$	—	$	—
	Net income (loss)	$	(1,969	)	$	(23,978	)	$	5,295	$	2,576	$	1,914		$	(14,761	)	$	6,275	$	14,917
	Basic net income (loss) per share:
	Net income (loss) per share from continuing operations	$	(0.01	)	$	(0.14	)	$	0.03	$	0.01	$	(0.20	)	$	(0.09	)	$	0.01	$	0.07
	Net income per share from operations of discontinued operations	$	—		$	—		$	—	$	—	$	0.01		$	0		$	0.02	$	0.02
	Net gain per share from operations of discontinued operations	$	—		$	—		$	—	$	—	$	0.2		$	—		$	—	$	—
	Basic net income (loss) per share	$	(0.01	)	$	(0.14	)	$	0.03	$	0.01	$	0.01		$	(0.08	)	$	0.04	$	0.08
	Diluted net income (loss) per share:
	Net income (loss) per share from continuing operations	$	(0.01	)	$	(0.14	)	$	0.03	$	0.01	$	(0.20	)	$	(0.09	)	$	0.01	$	0.07
	Net income per share from operations of discontinued operations	$	—		$	—		$	—	$	—	$	0.01		$	0		$	0.02	$	0.02
	Net gain per share from operations of discontinued operations	$	—		$	—		$	—	$	—	$	0.2		$	—		$	—	$	—
	Diluted net income (loss) per share	$	(0.01	)	$	(0.14	)	$	0.03	$	0.01	$	0.01		$	(0.08	)	$	0.04	$	0.08

Description_of_Business_and_Su3

Description of Business and Summary of Significant Accounting Policies - Additional Information (Detail) (USD $)	1 Months Ended	12 Months Ended
	Jun. 01, 2011	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Description Of Business And Significant Accounting Policies [Line Items]	'	'	'	'
Short-term deferred revenue	'	$172,408,000	$158,482,000	'
Long-term deferred revenue	'	87,467,000	91,061,000	'
Cost of providing services	'	153,189,000	142,827,000	103,930,000
Capitalized software development costs	'	2,400,000	0	0
Advertising expense	'	14,900,000	22,300,000	21,300,000
Currency translation adjustment	'	'	1,141,000	'
Stock split effected in the form of a stock dividend, percentage increase in shares outstanding	100.00%	'	'	'
Common stock, par value	$0.00	$0.00	$0.00	'
Stock split	2	'	'	'
Deferred Services Revenue	'	'	'	'
Description Of Business And Significant Accounting Policies [Line Items]	'	'	'	'
Short-term deferred revenue	'	170,700,000	156,500,000	'
Long-term deferred revenue	'	83,100,000	85,300,000	'
Cost of providing services	'	$148,100,000	$137,800,000	$98,400,000
Software Products	'	'	'	'
Description Of Business And Significant Accounting Policies [Line Items]	'	'	'	'
Warranty period	'	'90 days	'	'
Software and Software Development Costs	'	'	'	'
Description Of Business And Significant Accounting Policies [Line Items]	'	'	'	'
Intangible assets with finite lives, estimated economic lives, years	'	'3 years	'	'
Minimum	'	'	'	'
Description Of Business And Significant Accounting Policies [Line Items]	'	'	'	'
Property and equipment, estimated useful life, years	'	'1 year	'	'
Service period of recognizing maintenance service revenue, years	'	'1 year	'	'
Measuring benefits for uncertain tax positions more likely than not of being sustained upon audit, threshold percentage	'	50.00%	'	'
Minimum | Hardware Products	'	'	'	'
Description Of Business And Significant Accounting Policies [Line Items]	'	'	'	'
Warranty period	'	'1 year	'	'
Minimum | Leasehold Improvements	'	'	'	'
Description Of Business And Significant Accounting Policies [Line Items]	'	'	'	'
Property and equipment, estimated useful life, years	'	'3 years	'	'
Maximum	'	'	'	'
Description Of Business And Significant Accounting Policies [Line Items]	'	'	'	'
Property and equipment, estimated useful life, years	'	'13 years	'	'
Intangible assets with finite lives, estimated economic lives, years	'	'6 years	'	'
Service period of recognizing maintenance service revenue, years	'	'5 years	'	'
Maximum | Leasehold Improvements	'	'	'	'
Description Of Business And Significant Accounting Policies [Line Items]	'	'	'	'
Property and equipment, estimated useful life, years	'	'13 years	'	'

Revisions_to_Consolidated_Bala

Revisions to Consolidated Balance Sheet and Statement of Stockholders Equity (Detail) (USD $)	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
In Thousands, unless otherwise specified
Prepaid expenses and other current assets	$50,352	$52,539	$49,737	'
Total current assets	901,428	1,070,338	992,904	'
Total assets	1,749,030	1,912,436	1,843,301	'
Retained earnings	-132,348	97,104	116,761	'
Total stockholders’ equity	976,365	1,427,774	1,368,612	1,174,444
Total liabilities and stockholders’ equity	1,749,030	1,912,436	1,843,301	'
As Previously Reported	'	'	'	'
Prepaid expenses and other current assets	'	55,454	51,241	'
Total current assets	'	1,073,253	994,408	'
Total assets	'	1,915,351	1,844,805	'
Retained earnings	'	100,019	118,265	'
Total stockholders’ equity	'	1,430,689	1,370,116	'
Total liabilities and stockholders’ equity	'	1,915,351	1,844,805	'
Adjustment	'	'	'	'
Prepaid expenses and other current assets	'	-2,915	-1,504	'
Total current assets	'	-2,915	-1,504	'
Total assets	'	-2,915	-1,504	'
Retained earnings	'	-2,915	-1,504	'
Total stockholders’ equity	'	-2,915	-1,504	'
Total liabilities and stockholders’ equity	'	($2,915)	($1,504)	'

Revisions_to_Consolidated_Stat

Revisions to Consolidated Statements of Operations (Detail) (USD $)	3 Months Ended								12 Months Ended
In Thousands, except Per Share data, unless otherwise specified	Dec. 31, 2013	Sep. 30, 2013	Jun. 30, 2013	Mar. 31, 2013	Dec. 31, 2012	Sep. 30, 2012	Jun. 30, 2012	Mar. 31, 2012	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Provision for income taxes for continuing operations	'	'	'	'	'	'	'	'	($3,669)	$39,467	$6,224
Net income (loss) from continuing operations	-1,969	-23,978	5,295	2,117	-35,689	-15,406	1,962	12,164	-18,535	-36,969	124,930
Net income (loss)	-1,969	-23,978	5,295	2,576	1,914	-14,761	6,275	14,917	-18,076	8,344	134,836
Basic net income (loss) per share:	'	'	'	'	'	'	'	'	'	'	'
Net income (loss) per share from continuing operations	($0.01)	($0.14)	$0.03	$0.01	($0.20)	($0.09)	$0.01	$0.07	($0.11)	($0.21)	$0.71
Basic net income per share	($0.01)	($0.14)	$0.03	$0.01	$0.01	($0.08)	$0.04	$0.08	($0.11)	$0.05	$0.76
Diluted net income (loss) per share:	'	'	'	'	'	'	'	'	'	'	'
Net income (loss) per share from continuing operations	($0.01)	($0.14)	$0.03	$0.01	($0.20)	($0.09)	$0.01	$0.07	($0.11)	($0.21)	$0.69
Diluted net income (loss) per share	($0.01)	($0.14)	$0.03	$0.01	$0.01	($0.08)	$0.04	$0.08	($0.11)	$0.05	$0.74
Comprehensive income	'	'	'	'	'	'	'	'	-17,900	6,930	139,334
Prepaid expenses and other current assets	'	'	'	'	'	'	'	'	-637	-7,424	-2,212
Amortization of discounts and premiums on investments, net	'	'	'	'	'	'	'	'	1,816	2,381	2,695
Net cash provided by operating activities	'	'	'	'	'	'	'	'	168,442	189,361	302,340
Purchases of investments	'	'	'	'	'	'	'	'	-228,238	-315,012	-375,262
Net cash used in investing activities	'	'	'	'	'	'	'	'	-7,897	-54,957	-240,378
As Previously Reported	'	'	'	'	'	'	'	'	'	'	'
Provision for income taxes for continuing operations	'	'	'	'	'	'	'	'	'	38,056	5,246
Net income (loss) from continuing operations	'	'	'	'	'	'	'	'	'	-35,558	125,908
Net income (loss)	'	'	'	'	'	'	'	'	'	9,755	135,814
Basic net income (loss) per share:	'	'	'	'	'	'	'	'	'	'	'
Net income (loss) per share from continuing operations	'	'	'	'	'	'	'	'	'	($0.20)	$0.71
Basic net income per share	'	'	'	'	'	'	'	'	'	$0.06	$0.77
Diluted net income (loss) per share:	'	'	'	'	'	'	'	'	'	'	'
Net income (loss) per share from continuing operations	'	'	'	'	'	'	'	'	'	($0.20)	$0.69
Diluted net income (loss) per share	'	'	'	'	'	'	'	'	'	$0.06	$0.75
Comprehensive income	'	'	'	'	'	'	'	'	'	8,341	140,312
Prepaid expenses and other current assets	'	'	'	'	'	'	'	'	'	-8,835	-3,190
Net cash provided by operating activities	'	'	'	'	'	'	'	'	'	186,980	299,645
Purchases of investments	'	'	'	'	'	'	'	'	'	-312,631	-372,567
Net cash used in investing activities	'	'	'	'	'	'	'	'	'	-52,576	-237,683
Adjustment	'	'	'	'	'	'	'	'	'	'	'
Provision for income taxes for continuing operations	'	'	'	'	'	'	'	'	'	1,411	978
Net income (loss) from continuing operations	'	'	'	'	'	'	'	'	'	-1,411	-978
Net income (loss)	'	'	'	'	'	'	'	'	'	-1,411	-978
Basic net income (loss) per share:	'	'	'	'	'	'	'	'	'	'	'
Net income (loss) per share from continuing operations	'	'	'	'	'	'	'	'	'	($0.01)	$0
Basic net income per share	'	'	'	'	'	'	'	'	'	($0.01)	($0.01)
Diluted net income (loss) per share:	'	'	'	'	'	'	'	'	'	'	'
Net income (loss) per share from continuing operations	'	'	'	'	'	'	'	'	'	($0.01)	$0
Diluted net income (loss) per share	'	'	'	'	'	'	'	'	'	($0.01)	($0.01)
Comprehensive income	'	'	'	'	'	'	'	'	'	-1,411	-978
Prepaid expenses and other current assets	'	'	'	'	'	'	'	'	'	1,411	978
Amortization of discounts and premiums on investments, net	'	'	'	'	'	'	'	'	'	2,381	2,695
Net cash provided by operating activities	'	'	'	'	'	'	'	'	'	2,381	2,695
Purchases of investments	'	'	'	'	'	'	'	'	'	-2,381	-2,695
Net cash used in investing activities	'	'	'	'	'	'	'	'	'	($2,381)	($2,695)

Changes_in_Warranty_Obligation

Changes in Warranty Obligation (Detail) (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012
Product Warranty [Line Items]	'	'
Balance at beginning of year	$10,475	$10,577
Accruals for warranties issued during the year	16,307	18,432
Actual charges against warranty reserve during the year	-17,307	-18,534
Balance at end of year	$9,475	$10,475

Changes_in_Deferred_Services_R

Changes in Deferred Services Revenue (Detail) (Services Revenue, USD $)	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012
Services Revenue	'	'
Deferred Revenue Arrangement [Line Items]	'	'
Balance at beginning of year	$241,773	$212,178
Addition to deferred services revenue	354,893	349,022
Amortization of deferred services revenue	-342,873	-319,427
Balance at end of year	$253,793	$241,773

Change_of_Foreign_Currency_Tra

Change of Foreign Currency Translation Adjustments (Detail) (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Foreign Currency Translation [Line Items]	'	'	'
Beginning balance	$3,180	$1,841	$1,602
Foreign currency translation adjustments	1,039	1,339	239
Ending balance	$4,219	$3,180	$1,841

Business_Combination_Additiona

Business Combination - Additional Information (Detail) (USD $)	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
			Business
Business Combination Separately Recognized Transactions [Line Items]	'	'	'
Net cash paid in acquisitions	($7,974,000)	($4,583,000)	($163,630,000)
Cash received from net working capital adjustment	400,000	'	'
Number of business acquisitions	'	'	3
Purchase of certain additional equipment	'	5,000,000	'
Non-cash consideration given to acquire combinations	'	'	$200,000
Minimum	'	'	'
Business Combination Separately Recognized Transactions [Line Items]	'	'	'
Intangible assets amortization period, in years	'8 months	'	'
Maximum	'	'	'
Business Combination Separately Recognized Transactions [Line Items]	'	'	'
Intangible assets amortization period, in years	'6 years	'	'
Accordent Technologies Inc	'	'	'
Business Combination Separately Recognized Transactions [Line Items]	'	'	'
Business acquisition date	'	'	21-Mar-11
Hewlett Packard Visual Collaboration	'	'	'
Business Combination Separately Recognized Transactions [Line Items]	'	'	'
Business acquisition date	'	'	27-Jul-11
Vivu Inc	'	'	'
Business Combination Separately Recognized Transactions [Line Items]	'	'	'
Business acquisition date	'	'	14-Oct-11

Allocation_of_Total_Purchase_C

Allocation of Total Purchase Consideration to Assets and Liabilities Assumed (Detail) (USD $)	Dec. 31, 2011
In Thousands, unless otherwise specified
Business Acquisition [Line Items]	'
Current assets	$8,204
Property and equipment	2,990
Long-term assets	1,257
Total tangible assets acquired	12,451
Current liabilities	-7,786
Long-term liabilities	-4,362
Total liabilities assumed	-12,148
Fair value of net assets acquired	303
Deferred tax liability	-1,625
Goodwill	91,159
Total consideration	163,837
Core And Developed Technology	'
Business Acquisition [Line Items]	'
Intangible assets	20,600
Customer And Partner Relationships	'
Business Acquisition [Line Items]	'
Intangible assets	50,100
Trade Name	'
Business Acquisition [Line Items]	'
Intangible assets	1,400
In Process Research and Development	'
Business Acquisition [Line Items]	'
Intangible assets	1,400
Other	'
Business Acquisition [Line Items]	'
Intangible assets	$500

Schedule_of_Discontinued_Opera

Schedule of Discontinued Operations (Detail) (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Revenues	'	$71,133	$93,609
Income from discontinued operations	'	15,973	16,066
Income tax provision	'	6,085	6,160
Net income from discontinued operations	'	$9,888	$9,906

Schedule_of_Carrying_Amounts_o

Schedule of Carrying Amounts of Net Assets Sold (Detail) (USD $)	Dec. 31, 2012	Dec. 04, 2012
In Thousands, unless otherwise specified
Cash and cash equivalents	'	$248
Trade receivables, net	'	7,221
Inventories	'	12,659
Deferred taxes	'	-306
Prepaid expenses and other assets	'	295
Property and equipment, net	'	4,301
Goodwill	'	30,872
Purchased intangibles, net	'	5,724
Assets sold	'	61,014
Accounts payable	'	2,318
Accrued payroll and related liabilities	'	1,877
Deferred revenue	'	5,044
Other accrued liabilities	'	1,605
Deferred taxes	'	1,610
Liabilities transferred	'	12,454
Net assets sold	$48,560	$48,560

Gain_from_Sale_of_Discontinued

Gain from Sale of Discontinued Operations (Detail) (USD $)	1 Months Ended	3 Months Ended		12 Months Ended
In Thousands, unless otherwise specified	Dec. 04, 2012	Mar. 31, 2013	Dec. 31, 2012	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Discontinued Operations [Line Items]	'	'	'	'	'	'
Cash proceeds received	'	'	'	'	$50,659	'
Less: costs incurred directly attributable to the transaction	'	'	'	'	929	'
Net proceeds from sale of discontinued operations	'	'	'	'	49,730	'
Net assets sold	48,560	'	48,560	'	48,560	'
Currency translation adjustment	'	'	'	'	1,141	'
Gain from sale of discontinued operations	'	'	'	'	29	'
Income tax benefit	'	'	'	'	-35,396	'
Net gain from sale of discontinued operations	$35,400	$459	$35,425	$459	$35,425	'

Discontinued_Operations_Additi

Discontinued Operations - Additional Information (Detail) (USD $)	1 Months Ended	3 Months Ended		12 Months Ended
	Dec. 04, 2012	Mar. 31, 2013	Dec. 31, 2012	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Income Statement Balance Sheet And Additional Disclosures By Disposal Groups Including Discontinued Operations [Line Items]	'	'	'	'	'	'
Cash proceeds received	'	'	'	'	$50,659,000	'
Gain from sale of discontinued operations, net of taxes	35,400,000	459,000	35,425,000	459,000	35,425,000	'
Mobile Devices Holdings LLC	'	'	'	'	'	'
Income Statement Balance Sheet And Additional Disclosures By Disposal Groups Including Discontinued Operations [Line Items]	'	'	'	'	'	'
Cash proceeds received	50,700,000	'	'	'	'	'
Mobile Devices Holdings LLC | Maximum	'	'	'	'	'	'
Income Statement Balance Sheet And Additional Disclosures By Disposal Groups Including Discontinued Operations [Line Items]	'	'	'	'	'	'
Additional cash consideration payable over the next four years subject to certain conditions, including meeting certain agreed-upon EBITDA-based milestones	'	'	'	$57,000,000	'	'

Accounts_Receivable_Financing_

Accounts Receivable Financing - Additional Information (Detail) (USD $)	12 Months Ended
In Millions, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012
Accounts Notes And Loans Receivable [Line Items]	'	'
Amount of total outstanding receivables transferred	$123.40	$28.30
Amount due from the financing company	22.9	15.4
Fees incurred pursuant to the factoring agreement	1.8	0.4
Accounts Receivable	'	'
Accounts Notes And Loans Receivable [Line Items]	'	'
Amount of total outstanding receivables transferred	109.4	22.9
Amount due from the financing company	$21.60	$12.40

Schedule_of_Goodwill_by_Segmen

Schedule of Goodwill by Segment (Detail) (USD $)	12 Months Ended				12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2013	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2013
		Americas	EMEA	EMEA	APAC
Goodwill [Line Items]	'	'	'	'	'
Beginning Balance	$553,819	$302,768	$101,882	$101,882	$149,169
Add: goodwill resulting from an acquisition	5,391	5,391	'	'	'
Foreign currency translation	250	'	'	'	250
Ending Balance	$559,460	$308,159	$101,882	$101,882	$149,419

Details_of_Purchased_Intangibl

Details of Purchased Intangible Assets by Major Class (Detail) (USD $)	Dec. 31, 2013	Dec. 31, 2012
In Thousands, unless otherwise specified
Acquired And Internally Developed Finite Lived Intangible Assets [Line Items]	'	'
Finite Lived Intangible Assets, Gross Value	$170,365	$168,065
Finite Lived Intangible Assets, Accumulated Amortization and Impairment	-133,825	-114,000
Finite Lived Intangible Assets, Net Value	36,540	54,065
Total intangible assets, Gross Value	171,283	168,983
Total intangible assets, Accumulated Amortization and Impairment	-133,825	-114,000
Total intangible assets, Net Value	37,458	54,983
Indefinite lived trade name	'	'
Acquired And Internally Developed Finite Lived Intangible Assets [Line Items]	'	'
Indefinite Lived Intangible Assets,Gross Value	918	918
Indefinite Lived Intangible Assets, Accumulated Amortization and Impairment	'	'
Indefinite Lived Intangible Assets, Net Value	918	918
Core and developed technology	'	'
Acquired And Internally Developed Finite Lived Intangible Assets [Line Items]	'	'
Finite Lived Intangible Assets, Gross Value	81,178	81,178
Finite Lived Intangible Assets, Accumulated Amortization and Impairment	-76,952	-67,514
Finite Lived Intangible Assets, Net Value	4,226	13,664
Customer and partner relationships	'	'
Acquired And Internally Developed Finite Lived Intangible Assets [Line Items]	'	'
Finite Lived Intangible Assets, Gross Value	79,525	79,025
Finite Lived Intangible Assets, Accumulated Amortization and Impairment	-48,941	-39,578
Finite Lived Intangible Assets, Net Value	30,584	39,447
Non-compete agreement	'	'
Acquired And Internally Developed Finite Lived Intangible Assets [Line Items]	'	'
Finite Lived Intangible Assets, Gross Value	1,800	'
Finite Lived Intangible Assets, Accumulated Amortization and Impairment	-500	'
Finite Lived Intangible Assets, Net Value	1,300	'
Trade name	'	'
Acquired And Internally Developed Finite Lived Intangible Assets [Line Items]	'	'
Finite Lived Intangible Assets, Gross Value	3,400	3,400
Finite Lived Intangible Assets, Accumulated Amortization and Impairment	-3,089	-2,746
Finite Lived Intangible Assets, Net Value	311	654
Other	'	'
Acquired And Internally Developed Finite Lived Intangible Assets [Line Items]	'	'
Finite Lived Intangible Assets, Gross Value	4,462	4,462
Finite Lived Intangible Assets, Accumulated Amortization and Impairment	-4,343	-4,162
Finite Lived Intangible Assets, Net Value	119	300
Software development costs	'	'
Acquired And Internally Developed Finite Lived Intangible Assets [Line Items]	'	'
Finite Lived Intangible Assets, Gross Value	2,365	'
Finite Lived Intangible Assets, Accumulated Amortization and Impairment	-196	'
Finite Lived Intangible Assets, Net Value	$2,169	'

Estimated_Future_Amortization_

Estimated Future Amortization Expense of Purchased Intangible Assets (Detail) (USD $)	Dec. 31, 2013	Dec. 31, 2012
In Thousands, unless otherwise specified
Finite Lived Intangible Assets [Line Items]	'	'
2014	$12,891	'
2015	10,495	'
2016	8,484	'
2017	4,670	'
2018	'	'
Finite Lived Intangible Assets, Net Value	$36,540	$54,065

Goodwill_Purchased_Intangibles2

Goodwill, Purchased Intangibles, and Software Development Costs - Additional Information (Detail) (USD $)	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
	Site	Site
Acquired Intangible Assets [Line Items]	'	'	'
Number of reporting units	4	4	'
Amortization of purchased intangibles	$10,389,000	$9,830,000	$5,542,000
Amortization of purchased intangibles to cost of product revenues	9,400,000	7,600,000	5,700,000
Finite Lived Intangible Assets, Gross Value	170,365,000	168,065,000	'
Software development costs	'	'	'
Acquired Intangible Assets [Line Items]	'	'	'
Finite Lived Intangible Assets, Gross Value	2,365,000	'	'
Computer Software, Intangible Asset	'	'	'
Acquired Intangible Assets [Line Items]	'	'	'
Intangible assets with finite lives, estimated economic lives, years	'3 years	'	'
IPR&D reclassified to core and developed technology	'	'	'
Acquired Intangible Assets [Line Items]	'	'	'
Purchased finite lived intangibles	'	1,400,000	'
Indefinite life trade name	'	'	'
Acquired Intangible Assets [Line Items]	'	'	'
Purchased indefinite lived intangibles	$900,000	$900,000	$900,000
Minimum	'	'	'
Acquired Intangible Assets [Line Items]	'	'	'
Percentage of estimated fair value in excess of carrying value	30.00%	50.00%	'
Estimated future cash flows discounted rates	12.00%	'	'
Maximum	'	'	'
Acquired Intangible Assets [Line Items]	'	'	'
Intangible assets with finite lives, estimated economic lives, years	'6 years	'	'
Estimated future cash flows discounted rates	14.00%	'	'

Schedule_of_Inventories_Detail

Schedule of Inventories (Detail) (USD $)	Dec. 31, 2013	Dec. 31, 2012
In Thousands, unless otherwise specified
Inventory [Line Items]	'	'
Raw materials	$2,740	$1,871
Work in process	840	799
Finished goods	99,729	97,290
Inventories	$103,309	$99,960

Prepaid_Expenses_and_Other_Cur

Prepaid Expenses and Other Current Assets (Detail) (USD $)	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
In Thousands, unless otherwise specified
Schedule Of Other Assets [Line Items]	'	'	'
Non-trade receivables	$9,251	$10,463	'
Prepaid expenses	31,164	35,489	'
Derivative assets	6,748	4,158	'
Other current assets	3,189	2,429	'
Prepaid And Other Current Assets, Total	$50,352	$52,539	$49,737

Schedule_of_Property_and_Equip

Schedule of Property and Equipment (Detail) (USD $)

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2013

Dec. 31, 2013

In Thousands, unless otherwise specified

Minimum

Maximum

Computer Equipment And Software

Computer Equipment And Software

Computer Equipment And Software

Computer Equipment And Software

Equipment Furniture And Fixtures

Equipment Furniture And Fixtures

Equipment Furniture And Fixtures

Equipment Furniture And Fixtures

Tooling Equipment

Tooling Equipment

Tooling Equipment

Leasehold Improvements

Leasehold Improvements

Leasehold Improvements

Leasehold Improvements

Minimum

Maximum

Minimum

Maximum

Maximum

Minimum

Maximum

Property Plant And Equipment [Line Items]

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Property and equipment, estimated useful life, years

'

'

'1 year

'13 years

'

'

'3 years

'5 years

'

'

'1 year

'7 years

'

'

'3 years

'

'

'3 years

'13 years

Property and equipment, gross

$458,842

$421,901

'

'

$265,222

$241,642

'

'

$113,214

$101,784

'

'

$20,811

$18,544

'

$59,595

$59,931

'

'

Less: Accumulated depreciation and amortization

-343,685

-288,582

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Property and equipment, net

$115,157

$133,319

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Schedule_of_Deferred_Revenues_

Schedule of Deferred Revenues (Detail) (USD $)	Dec. 31, 2013	Dec. 31, 2012
In Thousands, unless otherwise specified
Deferred Revenue Arrangement [Line Items]	'	'
Short-term deferred revenue	$172,408	$158,482
Long-term deferred revenue	87,467	91,061
Software Service, Support and Maintenance Arrangement	'	'
Deferred Revenue Arrangement [Line Items]	'	'
Short-term deferred revenue	170,701	156,487
Long-term deferred revenue	83,092	85,286
Software License Arrangement	'	'
Deferred Revenue Arrangement [Line Items]	'	'
Short-term deferred revenue	1,400	1,400
Long-term deferred revenue	4,375	5,775
Product	'	'
Deferred Revenue Arrangement [Line Items]	'	'
Short-term deferred revenue	307	595
Long-term deferred revenue	'	'

Schedule_of_Other_Accrued_Liab

Schedule of Other Accrued Liabilities (Detail) (USD $)	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
In Thousands, unless otherwise specified
Accrued And Other Liabilities Current [Line Items]	'	'	'
Accrued expenses	$22,515	$19,165	'
Accrued co-op expenses	4,629	4,571	'
Restructuring reserves	11,238	5,347	'
Warranty obligations	9,475	10,475	10,577
Derivative liability	6,780	3,273	'
Employee stock purchase plan withholding	10,883	10,186	'
Other accrued liabilities	12,224	10,001	'
Total accrued and other current liabilities	$77,744	$63,018	'

Summary_of_Activity_of_Restruc

Summary of Activity of Restructuring Reserves (Detail) (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Restructuring Cost And Reserve [Line Items]	'	'	'
Beginning balance	$8,826	$2,940	$3,221
Additions to the reserve	51,296	24,820	9,396
Non-cash write-off of leasehold improvements	-3,547	-2,796	'
Cash payments and other usage	-21,646	-16,138	-9,677
Ending balance	34,929	8,826	2,940
Severance / Other	'	'	'
Restructuring Cost And Reserve [Line Items]	'	'	'
Beginning balance	1,362	2,486	2,524
Additions to the reserve	10,185	13,090	8,698
Non-cash write-off of leasehold improvements	'	'	'
Cash payments and other usage	-10,404	-14,214	-8,736
Ending balance	1,143	1,362	2,486
Facilities	'	'	'
Restructuring Cost And Reserve [Line Items]	'	'	'
Beginning balance	7,464	454	697
Additions to the reserve	38,231	11,730	698
Non-cash write-off of leasehold improvements	-3,547	-2,796	'
Cash payments and other usage	-8,362	-1,924	-941
Ending balance	33,786	7,464	454
Projects Discontinued	'	'	'
Restructuring Cost And Reserve [Line Items]	'	'	'
Beginning balance	'	'	'
Additions to the reserve	2,880	'	'
Non-cash write-off of leasehold improvements	'	'	'
Cash payments and other usage	-2,880	'	'
Ending balance	'	'	'

Restructuring_Costs_Additional

Restructuring Costs - Additional Information (Detail) (USD $)	1 Months Ended		2 Months Ended	12 Months Ended
	Jan. 22, 2014	Jul. 31, 2012	Oct. 31, 2011	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Restructuring Cost And Reserve [Line Items]	'	'	'	'	'	'
Restructuring costs	'	'	'	$48,470,000	$22,024,000	$9,396,000
Additions to the reserve	'	'	'	51,296,000	24,820,000	9,396,000
Global workforce elimination percentage under restructuring plan	6.00%	4.00%	7.00%	4.00%	'	'
Other Restructuring Costs	'	'	'	2,900,000	'	'
Deferred Rent	'	'	'	'	'	'
Restructuring Cost And Reserve [Line Items]	'	'	'	'	'	'
Additions to the reserve	'	'	'	2,800,000	2,800,000	'
Idle Facility	'	'	'	'	'	'
Restructuring Cost And Reserve [Line Items]	'	'	'	'	'	'
Additions to the reserve	'	'	'	38,200,000	11,700,000	700,000
Severance / Other	'	'	'	'	'	'
Restructuring Cost And Reserve [Line Items]	'	'	'	'	'	'
Additions to the reserve	'	'	'	$10,200,000	$13,100,000	$8,700,000

Interest_Expenses_Recognized_D

Interest Expenses Recognized (Detail) (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2013
Debt Instrument [Line Items]	'
Contractual interest expense	$1,605
Amortization of debt issuance costs	178
Total	$1,783

Debt_Additional_Information_De

Debt - Additional Information (Detail) (USD $)	1 Months Ended	12 Months Ended
	Sep. 13, 2013	Dec. 31, 2013
Debt Instrument [Line Items]	'	'
Term loan	$250,000,000	'
Maturity date of term loan	13-Sep-18	'
Term loan quarterly installments	1,600,000	'
Term loan payable period	'Interest is due and payable in arrears quarterly for loans bearing interest at the base rate and at the end of an interest period (or at each three month interval in the case of loans with interest periods greater than three months) in the case of loans bearing interest at the reserve adjusted LIBOR rate.	'
Debt issuance costs	'	2,700,000
Default interest rate applicable for any overdue principal	'	2.00%
Default interest rate for base rate loans for any other overdue amounts	'	2.00%
Weighted average interest rate	'	1.99%
Accrued interest on Term loan	'	200,000
Term loan, current	'	6,250,000
Long term debt	'	$242,200,000
Base Rate | Minimum	'	'
Debt Instrument [Line Items]	'	'
Term loan interest rate, applicable margin	0.50%	'
Base Rate | Maximum	'	'
Debt Instrument [Line Items]	'	'
Term loan interest rate, applicable margin	1.00%	'
LIBOR rate plus | Minimum	'	'
Debt Instrument [Line Items]	'	'
Term loan interest rate, applicable margin	1.50%	'
LIBOR rate plus | Maximum	'	'
Debt Instrument [Line Items]	'	'
Term loan interest rate, applicable margin	2.00%	'

ShortTerm_and_LongTerm_Investm

Short-Term and Long-Term Investments in Debt and Equity Securities (Detail) (USD $)	Dec. 31, 2013	Dec. 31, 2012
In Thousands, unless otherwise specified
Schedule Of Available For Sale Securities [Line Items]	'	'
Short-term investments	$134,684	$197,196
Long-term investments	56,372	50,333
Short-term Investments	'	'
Schedule Of Available For Sale Securities [Line Items]	'	'
Cost Basis	134,634	197,154
Unrealized Gains	57	62
Unrealized Losses	-7	-20
Short-term investments	134,684	197,196
Short-term Investments | US Treasury Securities	'	'
Schedule Of Available For Sale Securities [Line Items]	'	'
Cost Basis	19,792	24,205
Unrealized Gains	9	3
Unrealized Losses	'	'
Short-term investments	19,801	24,208
Short-term Investments | US Government Agencies Debt Securities	'	'
Schedule Of Available For Sale Securities [Line Items]	'	'
Cost Basis	38,388	101,036
Unrealized Gains	16	39
Unrealized Losses	-3	-5
Short-term investments	38,401	101,070
Short-term Investments | Non U S Government Securities	'	'
Schedule Of Available For Sale Securities [Line Items]	'	'
Cost Basis	13,734	1,527
Unrealized Gains	10	'
Unrealized Losses	'	'
Short-term investments	13,744	1,527
Short-term Investments | Corporate Debt Securities	'	'
Schedule Of Available For Sale Securities [Line Items]	'	'
Cost Basis	62,720	70,386
Unrealized Gains	22	20
Unrealized Losses	-4	-15
Short-term investments	62,738	70,391
Long Term Investments	'	'
Schedule Of Available For Sale Securities [Line Items]	'	'
Cost Basis	56,336	50,331
Unrealized Gains	39	21
Unrealized Losses	-3	-19
Long-term investments	56,372	50,333
Long Term Investments | US Treasury Securities	'	'
Schedule Of Available For Sale Securities [Line Items]	'	'
Cost Basis	12,252	6,396
Unrealized Gains	8	4
Unrealized Losses	'	'
Long-term investments	12,260	6,400
Long Term Investments | US Government Agencies Debt Securities	'	'
Schedule Of Available For Sale Securities [Line Items]	'	'
Cost Basis	30,627	22,145
Unrealized Gains	12	17
Unrealized Losses	-3	-2
Long-term investments	30,636	22,160
Long Term Investments | Non U S Government Securities	'	'
Schedule Of Available For Sale Securities [Line Items]	'	'
Cost Basis	2,305	422
Unrealized Gains	4	'
Unrealized Losses	'	'
Long-term investments	2,309	422
Long Term Investments | Corporate Debt Securities	'	'
Schedule Of Available For Sale Securities [Line Items]	'	'
Cost Basis	11,152	21,368
Unrealized Gains	15	'
Unrealized Losses	'	-17
Long-term investments	$11,167	$21,351

Schedule_of_Investment_in_Unre

Schedule of Investment in Unrealized Loss Position (Detail) (USD $)	Dec. 31, 2013	Dec. 31, 2012
In Thousands, unless otherwise specified
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis Valuation Techniques [Line Items]	'	'
Fair Value, Less than 12 Months	$15,370	$65,511
Gross Unrealized Losses, Less than 12 Months	-9	-39
Fair Value, 12 Months or Greater	1,504	1,999
Gross Unrealized Losses, 12 Months or Greater	-1	'
Total Fair Value	16,874	67,510
Total Gross Unrealized Losses	-10	-39
U.S. Government Agency Securities	'	'
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis Valuation Techniques [Line Items]	'	'
Fair Value, Less than 12 Months	5,533	21,768
Gross Unrealized Losses, Less than 12 Months	-6	-7
Fair Value, 12 Months or Greater	'	'
Gross Unrealized Losses, 12 Months or Greater	'	'
Total Fair Value	5,533	21,768
Total Gross Unrealized Losses	-6	-7
Corporate Debt Securities	'	'
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis Valuation Techniques [Line Items]	'	'
Fair Value, Less than 12 Months	9,837	43,743
Gross Unrealized Losses, Less than 12 Months	-3	-32
Fair Value, 12 Months or Greater	1,504	1,999
Gross Unrealized Losses, 12 Months or Greater	-1	'
Total Fair Value	11,341	45,742
Total Gross Unrealized Losses	($4)	($32)

Schedule_of_Fair_Value_of_Mark

Schedule of Fair Value of Marketable Securities and Foreign Currency Contracts (Detail) (USD $)	Dec. 31, 2013
In Thousands, unless otherwise specified
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]	'
Fixed income available-for-sale securities	$211,151	[1]
Foreign currency forward contracts, Assets	6,748	[2]
Foreign currency forward contracts, Liabilities	6,780	[3]
Quoted Prices in Active Markets for Identical Assets, Level 1	'
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]	'
Fixed income available-for-sale securities	17,596	[1]
Foreign currency forward contracts, Assets	'	[2]
Foreign currency forward contracts, Liabilities	'	[3]
Significant Other Observable Inputs, Level 2	'
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]	'
Fixed income available-for-sale securities	193,555	[1]
Foreign currency forward contracts, Assets	6,748	[2]
Foreign currency forward contracts, Liabilities	$6,780	[3]
[1]	Included in cash and cash equivalents and short- and long-term investments on the Company’s Consolidated Balance Sheets.
[2]	Included in short-term derivative asset as prepaid expenses and other current assets on the Company’s Consolidated Balance Sheets.
[3]	Included in short-term derivative liability as other accrued liabilities on the Company’s Consolidated Balance Sheets.

Investments_and_Fair_Value_Mea2

Investments and Fair Value Measurements - Additional Information (Detail) (USD $)	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis Valuation Techniques [Line Items]	'	'
Cash and cash equivalents	$392,629,000	$477,073,000
Long-term investments, contractual maturity period, low, years	'1 year	'
Long-term investments, contractual maturity period, high, years	'2 years	'
Cost of investment in private company	2,000,000	2,000,000
U.S. Treasury and other government agencies percentage of fixed income available-for-sale securities	48.00%	'
Corporate bonds percentage of fixed income available-for-sale securities	23.00%	'
Commercial paper percentage of available-for-sale securities	13.00%	'
Non-U.S. Government securities percentage of available-for-sale securities	8.00%	'
Money market funds percentage of available-for-sale securities	8.00%	'
Cash equivalents included in available-for-sale securities	20,100,000	'
Investment Maturity Period Maximum	'3 months	'
United States	'	'
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis Valuation Techniques [Line Items]	'	'
Cash equivalents and investments	167,100,000	'
Foreign Tax Authority	'	'
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis Valuation Techniques [Line Items]	'	'
Cash equivalents and investments	$416,600,000	'

Business_Risks_and_Credit_Conc1

Business Risks and Credit Concentration - Additional Information (Detail)	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Concentration Risk [Line Items]	'	'	'
Number of customer partners contributing more than 10% of gross accounts receivable	1	0	'
Product revenues | Americas	'	'	'
Concentration Risk [Line Items]	'	'	'
Revenue percentage from ScanSource Communications	16.00%	14.00%	14.00%

Future_Minimum_Lease_Payments_

Future Minimum Lease Payments Under Operating Lease (Detail) (USD $)	Dec. 31, 2013
In Thousands, unless otherwise specified
Operating Leases Future Minimum Payments	'
2014	$32,637
2015	27,294
2016	20,125
2017	17,701
2018	15,592
Thereafter	48,839
Total	$162,188

Commitments_and_Contingencies_1

Commitments and Contingencies - Additional information (Detail) (USD $)	12 Months Ended
In Millions, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Commitment And Contingencies [Line Items]	'	'	'
Operating leases expiration term	'2014 and 2023	'	'
Rent expense	$32.20	$32.80	$28.50
Deferred	'	'	'
Commitment And Contingencies [Line Items]	'	'	'
Short-term deferred lease obligation	1	0.1	'
Long-term deferred lease obligation	16	11.3	'
Standby Letters of Credit	'	'	'
Commitment And Contingencies [Line Items]	'	'	'
Letters of credit outstanding amount	$7.30	$7.60	'

Notional_Position_by_Currency_

Notional Position by Currency of Outstanding Non-designated Hedges (Detail) (Not Designated as Hedging Instrument)

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2013

In Thousands, unless otherwise specified

Buy

Buy

Buy

Buy

Buy

Buy

Buy

Buy

Buy

Buy

Buy

Buy

Buy

Buy

Buy

Buy

Buy

Buy

Sell

Sell

Sell

Sell

Sell

Sell

Sell

Sell

Sell

Sell

Sell

Sell

Sell

Sell

Sell

Sell

Original Maturities of 360 Days or Less

Original Maturities of 360 Days or Less

Original Maturities of 360 Days or Less

Original Maturities of 360 Days or Less

Original Maturities of 360 Days or Less

Original Maturities of 360 Days or Less

Original Maturities of 360 Days or Less

Original Maturities of 360 Days or Less

Original Maturities of 360 Days or Less

Original Maturities of 360 Days or Less

Original Maturities of 360 Days or Less

Original Maturities of 360 Days or Less

Original Maturities of Greater than 360 Days

Original Maturities of Greater than 360 Days

Original Maturities of Greater than 360 Days

Original Maturities of Greater than 360 Days

Original Maturities of Greater than 360 Days

Original Maturities of Greater than 360 Days

Original Maturities of 360 Days or Less

Original Maturities of 360 Days or Less

Original Maturities of 360 Days or Less

Original Maturities of 360 Days or Less

Original Maturities of 360 Days or Less

Original Maturities of 360 Days or Less

Original Maturities of 360 Days or Less

Original Maturities of 360 Days or Less

Original Maturities of 360 Days or Less

Original Maturities of 360 Days or Less

Original Maturities of 360 Days or Less

Original Maturities of 360 Days or Less

Original Maturities of Greater than 360 Days

Original Maturities of Greater than 360 Days

Original Maturities of Greater than 360 Days

Original Maturities of Greater than 360 Days

Brazilian Real

Brazilian Real

British Pound

British Pound

Euro

Euro

Israeli Shekel

Israeli Shekel

Japanese Yen

Japanese Yen

Mexican Peso

Mexican Peso

British Pound

British Pound

Euro

Euro

Israeli Shekel

Israeli Shekel

Brazilian Real

Brazilian Real

British Pound

British Pound

Euro

Euro

Israeli Shekel

Israeli Shekel

Japanese Yen

Japanese Yen

Mexican Peso

Mexican Peso

British Pound

British Pound

Euro

Euro

USD ($)

BRL

USD ($)

GBP (£)

USD ($)

EUR (€)

USD ($)

ILS

USD ($)

JPY (¥)

USD ($)

MXN

USD ($)

GBP (£)

USD ($)

EUR (€)

USD ($)

ILS

USD ($)

BRL

USD ($)

GBP (£)

USD ($)

EUR (€)

USD ($)

ILS

USD ($)

JPY (¥)

USD ($)

MXN

USD ($)

GBP (£)

USD ($)

EUR (€)

Derivative [Line Items]

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Notional amount of foreign currency

$1,290

3,022

$6,540

£ 3,978

$4,110

€ 2,983

$6,394

22,156

$3,180

¥ 333,876

$710

9,289

$16,750

£ 10,595

$15,640

€ 11,608

$13,103

49,055

$3,557

8,460

$3,863

£ 2,338

$8,892

€ 6,463

$16,670

58,148

$7,137

¥ 741,012

$1,564

20,547

$20,422

£ 13,176

$65,842

€ 48,654

Effect_of_NonDesignated_Hedges

Effect of Non-Designated Hedges in Condensed Consolidated Statements of Operations (Detail) (Not Designated as Hedging Instrument, Foreign exchange contract, Interest and other income (expense), net, USD $)	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2013
Not Designated as Hedging Instrument | Foreign exchange contract | Interest and other income (expense), net	'
Derivative Instruments Gain Loss [Line Items]	'
Amount of Loss Recognized in Income on Derivative	($411)

Effect_of_Derivative_Instrumen

Effect of Derivative Instruments Designated as Cash Flow Hedges in Condensed Consolidated Statements of Operations (Detail) (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2013		Dec. 31, 2012
Derivative Instruments Gain Loss [Line Items]	'		'
Foreign exchange contracts, Gain or (loss) recognized in OCI-effective portion, total	$1,374		$1,018
Gain or (loss) reclassified from OCI into income- effective portion, total	2,308		3,734
Portion and amount excluded from effectiveness testing, total	368	[1]	42	[1]
Product revenues	'		'
Derivative Instruments Gain Loss [Line Items]	'		'
Gain or (loss) reclassified from OCI into income- effective portion, total	207		7,133
Cost of revenues	'		'
Derivative Instruments Gain Loss [Line Items]	'		'
Gain or (loss) reclassified from OCI into income- effective portion, total	279		-607
Sales and marketing	'		'
Derivative Instruments Gain Loss [Line Items]	'		'
Gain or (loss) reclassified from OCI into income- effective portion, total	233		-974
Research and development	'		'
Derivative Instruments Gain Loss [Line Items]	'		'
Gain or (loss) reclassified from OCI into income- effective portion, total	1,425		-774
General and administrative	'		'
Derivative Instruments Gain Loss [Line Items]	'		'
Gain or (loss) reclassified from OCI into income- effective portion, total	164		-1,044
Interest and other income (expense), net	'		'
Derivative Instruments Gain Loss [Line Items]	'		'
Portion and amount excluded from effectiveness testing, total	368	[1]	42	[1]
Foreign exchange contract	'		'
Derivative Instruments Gain Loss [Line Items]	'		'
Foreign exchange contracts, Gain or (loss) recognized in OCI-effective portion, total	$1,374		$1,018
[1]	For the year ended December 31, 2013, there were no gains or losses for the ineffective portion. For the year ended December 31, 2012, the loss recorded for the ineffective portion was immaterial.

Notional_Position_by_Currency_1

Notional Position by Currency of Outstanding Cash Flow Hedges (Detail) (Cash Flow Hedging)

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2013

In Thousands, unless otherwise specified

Original Maturities of 360 Days or Less

Original Maturities of 360 Days or Less

Original Maturities of Greater than 360 Days

Original Maturities of Greater than 360 Days

Original Maturities of Greater than 360 Days

Original Maturities of Greater than 360 Days

Original Maturities of Greater than 360 Days

Original Maturities of Greater than 360 Days

Original Maturities of Greater than 360 Days

Original Maturities of Greater than 360 Days

Original Maturities of Greater than 360 Days

Original Maturities of Greater than 360 Days

Buy

Buy

Buy

Buy

Buy

Buy

Buy

Buy

Sell

Sell

Sell

Sell

Chinese Yuan

Chinese Yuan

Euro

Euro

British Pound

British Pound

Israeli Shekel

Israeli Shekel

Euro

Euro

British Pound

British Pound

USD ($)

CNY

USD ($)

EUR (€)

USD ($)

GBP (£)

USD ($)

ILS

USD ($)

EUR (€)

USD ($)

GBP (£)

Derivative [Line Items]

'

'

'

'

'

'

'

'

'

'

'

'

Notional amount of foreign currency

$14,973

91,600

$33,301

€ 25,192

$32,115

£ 20,705

$24,085

87,345

$71,802

€ 54,146

$29,421

£ 18,824

Derivative_Instruments_Measure

Derivative Instruments Measured at Gross Fair Value as Reflected in Condensed Consolidated Balance Sheets (Detail) (Foreign exchange contract, USD $)	Dec. 31, 2013		Dec. 31, 2012
In Thousands, unless otherwise specified
Derivatives Fair Value [Line Items]	'		'
Derivative assets	$6,748		$4,158
Derivative liabilities	6,780		3,273
Designated as Hedge Instruments	'		'
Derivatives Fair Value [Line Items]	'		'
Derivative assets	4,457	[1]	2,992	[1]
Derivative liabilities	4,235	[2]	1,760	[2]
Not Designated as Hedging Instrument	'		'
Derivatives Fair Value [Line Items]	'		'
Derivative assets	2,291	[1]	1,166	[1]
Derivative liabilities	$2,545	[2]	$1,513	[2]
[1]	All derivative assets are recorded as prepaid expenses and other current assets in the Consolidated Balance Sheets.
[2]	All derivative liabilities are recorded as other accrued liabilities in the Consolidated Balance Sheets.

Offsetting_of_Derivative_Asset

Offsetting of Derivative Assets (Detail) (Foreign exchange contract, USD $)	Dec. 31, 2013	Dec. 31, 2012
In Thousands, unless otherwise specified
Foreign exchange contract	'	'
Derivative [Line Items]	'	'
Gross Amounts of Recognized Assets	$6,748	$4,158
Gross Amounts Offset in the Statements of Financial Position	'	'
Net Amounts Of Assets Presented In the Statements of Financial Position	6,748	4,158
Gross Amounts Not Offset in the Statements of Financial Position, Financial Instruments	-5,643	-3,227
Gross Amounts Not Offset in the Statements of Financial Position, Cash Collateral Pledged	'	'
Net Amount	$1,105	$931

Offsetting_of_Derivative_Liabi

Offsetting of Derivative Liabilities (Detail) (Foreign exchange contract, USD $)	Dec. 31, 2013	Dec. 31, 2012
In Thousands, unless otherwise specified
Foreign exchange contract	'	'
Derivative [Line Items]	'	'
Gross Amounts of Recognized Liabilities	$6,780	$3,273
Gross Amounts Offset in the Statements of Financial Position	'	'
Net Amounts Of Liabilities Presented In the Statements of Financial Position	6,780	3,273
Gross Amounts Not Offset in the Statements of Financial Position, Financial Instruments	-5,643	-3,227
Gross Amounts Not Offset in the Statements of Financial Position, Cash Collateral Pledged	'	'
Net Amount	$1,137	$46

Foreign_Currency_Derivatives_A

Foreign Currency Derivatives - Additional Information (Detail)	12 Months Ended
	Dec. 31, 2013
Derivative [Line Items]	'
Maximum duration of foreign exchange forward contracts designated as cash flow hedges	'13 months

Changes_in_Accumulated_Other_C

Changes in Accumulated Other Comprehensive Income (Loss) by Component (Detail) (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2013		Dec. 31, 2012	Dec. 31, 2011
Accumulated Other Comprehensive Income Loss [Line Items]	'		'	'
Accumulated Other Comprehensive Income (Loss), Beginning balance	$4,196		'	'
Other comprehensive income before reclassifications	2,431		'	'
Amounts reclassified from accumulated other comprehensive income	-2,255	[1]	'	'
Net current-period other comprehensive income	176		-1,414	4,498
Accumulated Other Comprehensive Income (loss) , Ending balance	4,372		4,196	'
Accumulated Net Gain (Loss) from Designated or Qualifying Cash Flow Hedges	'		'	'
Accumulated Other Comprehensive Income Loss [Line Items]	'		'	'
Accumulated Other Comprehensive Income (Loss), Beginning balance	1,014		'	'
Other comprehensive income before reclassifications	1,374		'	'
Amounts reclassified from accumulated other comprehensive income	-2,308	[1]	'	'
Net current-period other comprehensive income	-934		'	'
Accumulated Other Comprehensive Income (loss) , Ending balance	80		'	'
Accumulated Net Unrealized Investment Gain (Loss)	'		'	'
Accumulated Other Comprehensive Income Loss [Line Items]	'		'	'
Accumulated Other Comprehensive Income (Loss), Beginning balance	2		'	'
Other comprehensive income before reclassifications	18		'	'
Amounts reclassified from accumulated other comprehensive income	53	[1]	'	'
Net current-period other comprehensive income	71		'	'
Accumulated Other Comprehensive Income (loss) , Ending balance	73		'	'
Accumulated Translation Adjustment	'		'	'
Accumulated Other Comprehensive Income Loss [Line Items]	'		'	'
Accumulated Other Comprehensive Income (Loss), Beginning balance	3,180		'	'
Other comprehensive income before reclassifications	1,039		'	'
Net current-period other comprehensive income	1,039		'	'
Accumulated Other Comprehensive Income (loss) , Ending balance	$4,219		'	'
[1]	See Note 12 for details of gains and losses, net of taxes, reclassified out of accumulated other comprehensive income into net income related to cash flow hedges and each line item of net income affected by the reclassification. Gains and losses related to available-for-sale securities were reclassified into interest and other income (expense), net in the Consolidated Statements of Operations, net of taxes.

Activity_Under_ShareBased_Comp

Activity Under Share-Based Compensation Plan (Detail) (USD $)	12 Months Ended
In Thousands, except Share data, unless otherwise specified	Dec. 31, 2013
Shares Available for Grant	'
Shares Available for Grant, Beginning Balance	9,230,011	[1]
Additional shares available for grant	10,500,000	[1],[2]
Performance shares granted	-3,202,038	[1]
Performance shares forfeited	3,808,784	[1]
Restricted stock units granted	-9,802,302	[1]
Restricted stock units forfeited	3,277,890	[1]
Options granted	'	[1]
Options forfeited	460,519	[1]
Options expired	-70	[1]
Shares Available for Grant, Ending Balance	14,272,794	[1]
Outstanding Number of Shares	'
Outstanding Options, Number of Shares, Beginning Balance	1,440,133
Options granted	'
Options exercised	-282,396
Options forfeited	-460,519	[1]
Outstanding Options, Number of Shares, Ending Balance	697,218
Options vested and expected to vest as of December 31, 2013	689,924	[3]
Options Weighted Avg Exercise Price	'
Options Weighted Avg Exercise Price, Beginning Balances	$12.68
Options granted	'
Options exercised	$10.10
Options forfeited	$12.80
Options Weighted Avg Exercise Price, Ending Balances	$13.64
Options vested and expected to vest as of December 31, 2013	$13.66	[3]
Options vested and expected to vest as of December 31, 2013, Weighted Average Contractual Term (Years)	'2 years 8 months 23 days
Options vested and expected to vest as of December 31, 2013,Aggregate Intrinsic Value	$36	[3]
[1]	For purposes of this table, shares are counted on a fungible basis for full value award activity.
[2]	Approved by stockholders on June 5, 2013
[3]	Options expected to vest are the result of applying the pre-vesting forfeiture rate assumption to total outstanding options.

Options_Outstanding_and_Exerci

Options Outstanding and Exercisable by Range of Exercise Price (Detail) (USD $)	12 Months Ended
	Dec. 31, 2013
Share Based Compensation Shares Authorized Under Stock Option Plans Exercise Price Range [Line Items]	'
Stock Options Number Outstanding	697,218
Stock Options Outstanding Weighted Average Remaining Contractual Life (Yrs)	'2 years 9 months 4 days
Weighted Average Exercise Price	$13.64
Stock Options Number Exercisable	525,180
Stock Options Exercisable Weighted Average Remaining Contractual Life (Yrs)	'1 year 11 months 19 days
Weighted Average Exercise Price	$14.31
$0.75-$0.75	'
Share Based Compensation Shares Authorized Under Stock Option Plans Exercise Price Range [Line Items]	'
Range of Exercise Price, Lower range	$0.75
Range of Exercise Price, Upper range	$0.75
Stock Options Number Outstanding	3,477
Stock Options Outstanding Weighted Average Remaining Contractual Life (Yrs)	'2 years 5 months 9 days
Weighted Average Exercise Price	$0.75
Stock Options Number Exercisable	3,100
Weighted Average Exercise Price	$0.75
$11.61-$11.61	'
Share Based Compensation Shares Authorized Under Stock Option Plans Exercise Price Range [Line Items]	'
Range of Exercise Price, Lower range	$11.61
Range of Exercise Price, Upper range	$11.61
Stock Options Number Outstanding	351,818
Stock Options Outstanding Weighted Average Remaining Contractual Life (Yrs)	'5 years 7 days
Weighted Average Exercise Price	$11.61
Stock Options Number Exercisable	180,157
Weighted Average Exercise Price	$11.61
$11.67-$16.65	'
Share Based Compensation Shares Authorized Under Stock Option Plans Exercise Price Range [Line Items]	'
Range of Exercise Price, Lower range	$11.67
Range of Exercise Price, Upper range	$16.65
Stock Options Number Outstanding	198,133
Stock Options Outstanding Weighted Average Remaining Contractual Life (Yrs)	'7 months 28 days
Weighted Average Exercise Price	$14.72
Stock Options Number Exercisable	198,133
Weighted Average Exercise Price	$14.72
$17.42-$17.42	'
Share Based Compensation Shares Authorized Under Stock Option Plans Exercise Price Range [Line Items]	'
Range of Exercise Price, Lower range	$17.42
Range of Exercise Price, Upper range	$17.42
Stock Options Number Outstanding	143,790
Stock Options Outstanding Weighted Average Remaining Contractual Life (Yrs)	'1 month 6 days
Weighted Average Exercise Price	$17.42
Stock Options Number Exercisable	143,790
Weighted Average Exercise Price	$17.42

Changes_in_Unvested_Performanc

Changes in Unvested Performance Shares and Restricted Stock Units and Non-Employee Director Restricted Stock Units (Detail) (USD $)	Dec. 31, 2013		Dec. 31, 2012		Dec. 31, 2013		Dec. 31, 2013
					Performance Shares		Restricted Stock Units (RSUs)
Number of shares	'		'		'		'
Unvested Shares Beginning Balance	9,205,462	[1]	8,305,508	[1]	'		'
Performance shares granted	'		'		1,836,284	[1]	5,870,349	[1],[2]
Performance shares vested and issued	'		'		-156,128	[1]	-2,672,336	[1]
Performance shares forfeited	'		'		-2,096,944	[1]	-1,881,271	[1]
Unvested Shares Ending Balance	9,205,462	[1]	8,305,508	[1]	'		'
Weighted Avg Grant Date Fair Value	'		'		'		'
Weighted Avg Grant Date Fair Value, Beginning Balance	$12.59		$17.03		'		'
Granted, Weighted Avg Grant Date Fair Value	'		'		$9.30		$10.24	[2]
Vested and issued, Weighted Avg Grant Date Fair Value	'		'		$9.74		$15.98
Forfeited, Weighted Avg Grant Date Fair Value	'		'		$15.95		$13.29
Weighted Avg Grant Date Fair Value, Ending Balance	$12.59		$17.03		'		'
[1]	For purposes of this table, shares are counted on a one-for-one basis, not on a fungible share counting basis.
[2]	Includes 126,666 restricted stock units granted to non-employee directors.

Changes_in_Unvested_Performanc1

Changes in Unvested Performance Shares and Restricted Stock Units and Non-Employee Director Restricted Stock Units (Parenthetical) (Detail)	12 Months Ended
	Dec. 31, 2013
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]	'
Restricted Stock Units granted to Non-Employee Directors	126,666

Summary_and_Allocation_of_Stoc

Summary and Allocation of Stock-Based Compensation Expense (Detail) (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Employee Service Share Based Compensation Allocation Of Recognized Period Costs [Line Items]	'	'	'
Stock-based compensation expense	$64,465	$88,761	$63,853
Less: tax benefit	11,174	21,880	5,134
Stock-based compensation costs related to employee equity awards and employee stock purchases, net of tax	53,291	66,881	58,719
Cost of sales - product	'	'	'
Employee Service Share Based Compensation Allocation Of Recognized Period Costs [Line Items]	'	'	'
Stock-based compensation expense	2,892	3,593	2,501
Cost of sales - service	'	'	'
Employee Service Share Based Compensation Allocation Of Recognized Period Costs [Line Items]	'	'	'
Stock-based compensation expense	5,852	6,611	3,766
Cost of revenues	'	'	'
Employee Service Share Based Compensation Allocation Of Recognized Period Costs [Line Items]	'	'	'
Stock-based compensation expense	8,744	10,204	6,267
Sales and marketing	'	'	'
Employee Service Share Based Compensation Allocation Of Recognized Period Costs [Line Items]	'	'	'
Stock-based compensation expense	26,570	36,791	27,022
Research and development	'	'	'
Employee Service Share Based Compensation Allocation Of Recognized Period Costs [Line Items]	'	'	'
Stock-based compensation expense	15,634	20,195	14,850
General and administrative	'	'	'
Employee Service Share Based Compensation Allocation Of Recognized Period Costs [Line Items]	'	'	'
Stock-based compensation expense	13,517	21,571	15,714
Operating Expenses	'	'	'
Employee Service Share Based Compensation Allocation Of Recognized Period Costs [Line Items]	'	'	'
Stock-based compensation expense	$55,721	$78,557	$57,586

Significant_Assumptions_Used_t

Significant Assumptions Used to Estimate Fair Value of Employee Stock Options (Detail) (Employee Stock Option)	12 Months Ended
	Dec. 31, 2012
Employee Stock Option	'
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]	'
Expected volatility	51.24%
Risk-free interest rate	0.50%
Expected dividends	'
Expected life (yrs)	'3 years 8 months 12 days

Significant_Assumptions_Used_t1

Significant Assumptions Used to Estimate Fair Value of Employee Stock Purchase Plan (Detail) (Employee Stock Purchase Plan)	12 Months Ended
	Dec. 31, 2011	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2013	Dec. 31, 2012
		Minimum	Minimum	Maximum	Maximum
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]	'	'	'	'	'
Expected volatility	39.57%	42.40%	48.27%	48.89%	61.78%
Risk-free interest rate	0.24%	0.08%	0.09%	0.35%	0.24%
Expected dividends	'	'	'	'	'
Expected life (yrs)	'1 year 11 days	'6 months	'6 months	'2 years	'2 years

Stockholders_Equity_and_Stockb2

Stockholders' Equity and Stock-based Compensation - Share Repurchase Programs - Additional Information (Detail) (USD $)

1 Months Ended

12 Months Ended

1 Months Ended

12 Months Ended

1 Months Ended

Oct. 30, 2013

Sep. 13, 2013

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2011

Dec. 31, 2013

Dec. 05, 2013

Dec. 31, 2013

Dec. 31, 2012

Oct. 30, 2013

Dec. 31, 2013

Sep. 13, 2013

Sep. 13, 2013

Sep. 13, 2013

Accelerated Share Repurchase Agreements

Accelerated Share Repurchase Agreements

Stock Repurchase Program

Stock Repurchase Program

Tender Offer

Tender Offer

Fund program, cash

Fund program Term loan

Return of Capital Program.

Accelerated Share Repurchase Agreements

Accelerated Share Repurchases [Line Items]

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Purchase of common stock, shares

27,400,000

'

'

'

'

'

'

45,200,000

5,100,000

'

8,000,000

'

'

'

Purchase of common stock, value

'

'

$487,180,000

$67,901,000

$64,937,000

'

'

$502,300,000

$55,000,000

'

'

'

'

'

Shares repurchase authorized amount

'

400,000,000

'

'

'

'

'

'

'

'

114,600,000

150,000,000

250,000,000

400,000,000

Percentage of outstanding common stock repurchase

'

20.00%

'

'

'

'

'

'

'

'

'

'

'

'

Dutch Auction tender offer, amount

'

250,000,000

'

'

'

'

'

'

'

'

'

'

'

'

Cost of shares repurchased

'

$10.40

'

'

'

'

'

'

'

'

'

'

'

'

Tender Offer expiration date

'

30-Oct-13

30-Oct-13

'

'

'

'

'

'

'

'

'

'

'

Shares repurchase program, shares repurchased value

'

'

'

'

'

27,900,000

'

'

'

285,400,000

'

'

'

'

Reduction to stockholder's equity

'

'

'

'

'

'

$86,700,000

'

'

'

'

'

'

'

Stockholders_Equity_and_Stockb3

Stockholders' Equity and Stock-based Compensation - Stock Option Plans and Employee Stock Purchase Plan - Additional Information (Detail) (USD $)	12 Months Ended			1 Months Ended	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011	26-May-11	Dec. 31, 2013	Dec. 31, 2012
	Employee Stock Purchase Plan	Employee Stock Purchase Plan	Employee Stock Purchase Plan	Stock Option Plans	Stock Option Plans	Stock Option Plans
						Nonqualified Stock Options
Stock Option And Employee Stock Purchase Plan [Line Items]	'	'	'	'	'	'
Shares reserved for issuance under the 2011 equity incentive plan, post stock split	'	'	'	19,800,000	'	'
Expired Cancelled Or Forfeited Shares Of Past Plans Added To Reserve Of 2011 Plan Post Split Maximum	'	'	'	13,636,548	'	'
Stock options granted expiry period	'	'	'	'	'7 years	'
Non-qualified stock option shares to certain employees	'	'	'	'	'	479,571
Terms of Option Grant	'	'	'	'	'	'50% of the options vest on the one year anniversary of the grant date and the remaining 50% will vest on second anniversary of the grant date.
Weighted-average estimated fair value of non-qualified stock options granted	'	'	'	'	'	$4.45
Purchase period	'6 months	'	'	'	'	'
Offering period	'2 years	'	'	'	'	'
Maximum percentage of employees' compensation deductions	15.00%	'	'	'	'	'
Discount from market price	85.00%	'	'	'	'	'
Maximum worth of shares per employee	$25,000	'	'	'	'	'
Maximum number of shares per employee	10,000	'	'	'	'	'
Number of shares approved and available under the Employee Stock Purchase Plan	5,259,136	'	'	'	'	'
Number of shares purchased	2,904,287	1,867,683	1,143,614	'	'	'
Average price per share for shares purchased	$7.41	$11.24	$15.19	'	'	'
Incremental expenses recognized	1,400,000	7,900,000	'	'	'	'
Cumulative incremental expenses incurred	$20,600,000	$10,200,000	'	'	'	'

Stockholders_Equity_and_Stockb4

Stockholders' Equity and Stock-based Compensation - Performance Shares and Restricted Stock Units - Additional Information (Detail) (USD $)	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]	'	'	'
Total pre-tax intrinsic value of options exercised	$300,000	$3,100,000	$19,300,000
Stock options exercisable	525,180	963,873	1,644,733
Stock options exercisable, weighted average exercise price	$14.31	$13.22	$11.37
Aggregate intrinsic value of stock options outstanding	36,000	'	'
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Intrinsic Value	32,000	'	'
Non Vested Stock Options	'	'	'
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]	'	'	'
Compensation cost not yet recognized	300,000	'	'
Compensation Cost Not yet Recognized, Period for Recognition	'5 months	'	'
Unvested Shares	'	'	'
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]	'	'	'
Compensation cost not yet recognized	65,100,000	'	'
Compensation Cost Not yet Recognized, Period for Recognition	'13 months	'	'
Total fair value of shares vested	$44,200,000	$43,400,000	$36,600,000
Minimum | Performance Shares	'	'	'
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]	'	'	'
Award target performance rate, low	0.00%	0.00%	0.00%
Vesting period (in years)	'1 year	'1 year	'1 year
Maximum | Performance Shares	'	'	'
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]	'	'	'
Award target performance rate, high	150.00%	150.00%	150.00%
Vesting period (in years)	'3 years	'3 years	'3 years

Stockholders_Equity_and_Stockb5

Stockholders' Equity and Stock-based Compensation - Valuation and Information - Additional Information (Detail) (USD $)	12 Months Ended
In Millions, except Per Share data, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]	'	'	'
Stock based compensation cost for software development	$0.20	'	'
Nonqualified Stock Option Plan	'	'	'
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]	'	'	'
Granted, Weighted Avg Grant Date Fair Value	'	$4.45	'
Employee Stock Purchase Plan | Minimum	'	'	'
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]	'	'	'
Granted, Weighted Avg Grant Date Fair Value	$2.60	$2.69	$5.51
Employee Stock Purchase Plan | Maximum	'	'	'
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]	'	'	'
Granted, Weighted Avg Grant Date Fair Value	$4.57	$8.40	$9.98
Nonqualified Stock Option Plan And Employee Stock Purchase | Historical Volatility	'	'	'
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]	'	'	'
Blended volatility	50.00%	'	'
Nonqualified Stock Option Plan And Employee Stock Purchase | Implied Volatility	'	'	'
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]	'	'	'
Blended volatility	50.00%	'	'

Employee_Benefits_Plans_Additi

Employee Benefits Plans - Additional Information (Detail) (401(k) Plan, USD $)	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Defined Benefit Plan Disclosure [Line Items]	'	'	'
Contribution by eligible through payroll deduction, percentage of eligible contribution	60.00%	'	'
Maximum contribution amount for eligible employees under plan	$17,500	'	'
Cash matching percentage of matching contribution on rate of compensation employee's compensation	50.00%	'	'
Rate of compensation employees' contribution serving as base for matching contribution	6.00%	'	'
Cash match contribution per participating employee per year	2,000	2,000	2,000
Company's contribution to employee benefit plans	3,000,000	3,000,000	3,000,000
Employees Projected to be Age 50 or Older	'	'	'
Defined Benefit Plan Disclosure [Line Items]	'	'	'
Maximum contribution amount for eligible employees under plan	$5,500	'	'
Minimum age limit of employees to be eligible for catch-up contribution	50	'	'

Components_of_Income_Tax_Expen

Components of Income Tax Expense (Detail) (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Income tax expense from continuing operations:	'	'	'
Federal	($953)	$44,569	$3,825
State	-72	3,283	2,240
Foreign	8,604	9,488	6,445
Total current	7,579	57,340	12,510
Federal	-10,715	-13,372	-3,528
State	-818	-1,308	433
Foreign	285	-3,193	-3,191
Total deferred	-11,248	-17,873	-6,286
Total income tax expense (benefit) from continuing operations	-3,669	39,467	6,224
Income tax expense (benefit) from discontinued operations	$96	($29,311)	$6,160

Sources_of_Income_Before_Provi

Sources of Income Before Provision for Income Taxes (Detail) (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Schedule Of Income Before Income Tax [Line Items]	'	'	'
United States	($17,823)	($37,025)	$25,394
Foreign	-4,381	39,523	105,760
Income (loss) from continuing operations before provision for income taxes	($22,204)	$2,498	$131,154

Reconciliation_of_Tax_Provisio

Reconciliation of Tax Provision Computed Using Statutory Rates to Effective Income Tax Provision (Detail) (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Schedule Of Components Of Deferred Tax Provision [Line Items]	'	'	'
Federal tax at statutory rate	($7,771)	$2,194	$46,827
State taxes, net of federal benefit	-1,571	2,354	2,673
Non-deductible share based compensation	2,900	6,143	3,467
Foreign income at tax rates different than U.S. rates	7,104	-10,176	-37,980
Changes in reserves for uncertain tax positions	-2,497	-3,926	-8,852
Research and development tax credit	-4,243	-268	-3,008
Domestic production activities deduction	-757	-1,136	-574
Gain on intercompany debt	'	36,163	'
Non-deductible executive compensation	460	358	438
Subpart F income	716	657	657
Non-deductible acquisition and divestiture costs	-355	4,782	1,025
Sale of intellectual property	2,947	2,356	1,424
Foreign tax credit	-359	-264	-211
Other	-243	230	338
Total income tax expense (benefit) from continuing operations	($3,669)	$39,467	$6,224

Summary_of_Temporary_Differenc

Summary of Temporary Differences Resulting in Deferred Tax Assets (Liabilities) (Detail) (USD $)	Dec. 31, 2013	Dec. 31, 2012
In Thousands, unless otherwise specified
Schedule Of Deferred Tax Assets And Liabilities [Line Items]	'	'
Property and equipment, net, principally due to differences in depreciation	$6,508	$8,208
Capitalized research and development costs	425	504
Acquired intangibles	3,742	2,274
Inventory	6,910	5,887
Restructuring reserves	10,214	2,851
Deferred revenue	13,699	13,964
Other reserves	17,570	16,442
Share-based compensation	15,906	20,065
Net operating loss and capital loss carryforwards	2,511	3,302
Tax credit carryforwards	16,457	12,977
Deferred tax asset	93,942	86,474
Deferred tax liability, amortization of acquired intangibles	-2,249	-6,226
Net deferred tax asset before valuation allowance	91,693	80,248
Valuation allowance	-3,359	-3,161
Net deferred tax asset, net of valuation allowance	$88,334	$77,087

Aggregate_Changes_in_Gross_Unr

Aggregate Changes in Gross Unrecognized Tax Benefits (Detail) (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Income Tax Contingency [Line Items]	'	'	'
Beginning balance	$23,049	$32,408	$36,923
Additions based on tax positions taken during a prior period	'	304	1,130
Reductions based on tax positions taken during a prior period	'	-5,690	-415
Additions based on tax positions taken during the current period	1,414	310	2,411
Reductions related to settlement of tax matters	'	-807	-6,873
Reductions related to a lapse of applicable statute of limitations	-2,451	-3,476	-768
Ending balance	$22,012	$23,049	$32,408

Income_Taxes_Additional_Inform

Income Taxes - Additional Information (Detail) (USD $)

12 Months Ended

12 Months Ended

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2011

Dec. 31, 2010

Dec. 31, 2012

Dec. 31, 2011

Dec. 31, 2012

Dec. 31, 2012

Dec. 31, 2011

Dec. 31, 2011

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2011

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2011

Dec. 31, 2008

Dec. 31, 2008

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2011

Dec. 31, 2008

Dec. 31, 2008

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2011

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2011

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2011

Dec. 31, 2013

Dec. 31, 2013

Multi-Year Tax Audits

Multi-Year Tax Audits

Reduction In Unrecognized Tax Benefit For Research Credits

U.S. And Foreign Jurisdictions

U.S. And Foreign Jurisdictions

Changes in Foreign Exchange Rates

Israel

Israel

Israel

SINGAPORE

SINGAPORE

SINGAPORE

SINGAPORE

SINGAPORE

China Subsidiary

China Subsidiary

China Subsidiary

China Subsidiary

China Subsidiary

Thailand Subsidiary

Thailand Subsidiary

Thailand Subsidiary

Thailand Subsidiary

Thailand Subsidiary

Thailand Subsidiary

Thailand Subsidiary

Thailand Subsidiary

Thailand Subsidiary

TASC

TASC

Prior Tax Rate

Revised Tax Rate

Prior Tax Rate

Revised Tax Rate

Prior Tax Rate

Prior Tax Rate

Prior Tax Rate

Revised Tax Rate

Revised Tax Rate

Revised Tax Rate

Prior Tax Rate

Revised Tax Rate

Income Tax Information [Line Items]

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Income tax (benefit) expense from sale of discontinued operations

'

($35,396,000)

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Federal and state taxes recorded on financing of the global restructuring

'

38,800,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Net operating losses

1,300,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Capital loss carry-forwards

1,200,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Tax credit carry-forward

16,457,000

12,977,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Net operating loss carryforwards credit relate to acquisitions

100,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Valuation allowance related to operating losses and credits

3,359,000

3,161,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Deferred tax assets, tax credit carryforwards, research

2,900,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Deferred tax assets, tax credit carryforwards, foreign

500,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Cumulative amount of earnings upon which U.S. income tax has not been provided

304,400,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Reductions of income taxes payable resulting from exercise of employee stock options and other employee stock programs

'

5,100,000

13,700,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Foreign reduced tax rates

'

'

'

'

'

'

'

'

'

'

9.10%

5.00%

3.80%

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Realized tax savings

'

'

'

'

'

'

'

'

'

'

100,000

4,800,000

5,200,000

300,000

600,000

500,000

'

'

1,100,000

0

700,000

'

'

200,000

300,000

500,000

'

'

'

'

'

'

'

'

Tax benefit per share

'

'

'

'

'

'

'

'

'

'

'

$0.03

$0.03

'

'

'

'

'

$0.01

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Effective tax rate

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

17.00%

10.00%

'

'

'

25.00%

15.00%

'

'

'

20.00%

23.00%

30.00%

10.00%

10.00%

10.00%

25.00%

15.00%

Recorded reserve releases

2,400,000

10,000,000

8,100,000

'

800,000

6,900,000

5,700,000

3,500,000

800,000

400,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Unrecognized tax benefits which would affect income tax expense if recognized

22,012,000

23,049,000

32,408,000

36,923,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Accrued interest and penalties related to uncertain tax positions

1,500,000

1,500,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Anticipated reduction in uncertain tax positions

$900,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Reconciliation_of_Numerator_an

Reconciliation of Numerator and Denominator of Basic and Diluted Net Income Per Share (Detail) (USD $)	1 Months Ended	3 Months Ended								12 Months Ended
In Thousands, except Per Share data, unless otherwise specified	Dec. 04, 2012	Dec. 31, 2013	Sep. 30, 2013	Jun. 30, 2013	Mar. 31, 2013	Dec. 31, 2012	Sep. 30, 2012	Jun. 30, 2012	Mar. 31, 2012	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Schedule Of Earnings Per Share Basic And Diluted By Common Class [Line Items]	'	'	'	'	'	'	'	'	'	'	'	'
Net income (loss) from continuing operations	'	($1,969)	($23,978)	$5,295	$2,117	($35,689)	($15,406)	$1,962	$12,164	($18,535)	($36,969)	$124,930
Income from operations of discontinued operations, net of taxes	'	'	'	'	'	'	'	'	'	'	9,888	9,906
Gain from sale of discontinued operations, net of taxes	35,400	'	'	'	459	35,425	'	'	'	459	35,425	'
Net income (loss)	'	($1,969)	($23,978)	$5,295	$2,576	$1,914	($14,761)	$6,275	$14,917	($18,076)	$8,344	$134,836
Weighted average shares outstanding for basic net income (loss) per share	'	'	'	'	'	'	'	'	'	167,272	176,878	176,426
Effect of dilutive potential common shares	'	'	'	'	'	'	'	'	'	'	'	4,769
Weighted average shares outstanding for diluted net income (loss) per share	'	'	'	'	'	'	'	'	'	167,272	176,878	181,195
Net income (loss) per share from continuing operations	'	($0.01)	($0.14)	$0.03	$0.01	($0.20)	($0.09)	$0.01	$0.07	($0.11)	($0.21)	$0.71
Income from discontinued operations, net of taxes	'	'	'	'	'	$0.01	$0	$0.02	$0.02	'	$0.06	$0.06
Gain per share from sale of discontinued operations, net of taxes	'	'	'	'	'	$0.20	'	'	'	'	$0.20	'
Basic net income per share	'	($0.01)	($0.14)	$0.03	$0.01	$0.01	($0.08)	$0.04	$0.08	($0.11)	$0.05	$0.76
Net income (loss) per share from continuing operations	'	($0.01)	($0.14)	$0.03	$0.01	($0.20)	($0.09)	$0.01	$0.07	($0.11)	($0.21)	$0.69
Income from discontinued operations, net of taxes	'	'	'	'	'	$0.01	$0	$0.02	$0.02	'	$0.06	$0.05
Gain per share from sale of discontinued operations, net of taxes	'	'	'	'	'	$0.20	'	'	'	'	$0.20	'
Diluted net income (loss) per share	'	($0.01)	($0.14)	$0.03	$0.01	$0.01	($0.08)	$0.04	$0.08	($0.11)	$0.05	$0.74
Antidilutive employee stock-based awards, excluded	'	'	'	'	'	'	'	'	'	5,045	4,998	'

Net_Income_Per_Share_Disclosur2

Net Income Per Share Disclosures - Additional Information (Detail)	1 Months Ended		12 Months Ended
	Oct. 30, 2013	Sep. 13, 2013	Dec. 31, 2013
Shares Repurchased Through Agreements Included From Computation Of Earnings Per Share [Line Items]	'	'	'
Purchase of common stock, shares	27,400,000	'	'
Tender Offer expiration date	'	30-Oct-13	30-Oct-13
Accelerated Share Repurchase Agreements	'	'	'
Shares Repurchased Through Agreements Included From Computation Of Earnings Per Share [Line Items]	'	'	'
Purchase of common stock, shares	'	'	8,000,000

Business_Segment_Information_A

Business Segment Information - Additional Information (Detail)	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012
	Location
Entity Wide Disclosure On Geographic Areas Long Lived Assets [Line Items]	'	'
Business organized number of geographical theatres (area)	3	'
Number of foreign countries holding more than 10% of total net fixed assets	'No single country outside of the United States has more than 10% of total net fixed assets	'No single country outside of the United States has more than 10% of total net fixed assets

Financial_Information_by_Repor

Financial Information by Reportable Segment (Detail) (USD $)

3 Months Ended

12 Months Ended

In Thousands, unless otherwise specified

Dec. 31, 2013

Sep. 30, 2013

Jun. 30, 2013

Mar. 31, 2013

Dec. 31, 2012

Sep. 30, 2012

Jun. 30, 2012

Mar. 31, 2012

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2011

Segment Reporting Information [Line Items]

'

'

'

'

'

'

'

'

'

'

'

Revenue

$347,942

$336,461

$345,234

$338,752

$353,026

$335,392

$358,500

$345,710

$1,368,389

[1]

$1,392,628

[1]

$1,402,189

[1]

% of total revenue

'

'

'

'

'

'

'

'

100.00%

100.00%

100.00%

Contribution margin

'

'

'

'

'

'

'

'

549,934

567,814

596,922

% of segment revenue

'

'

'

'

'

'

'

'

40.00%

41.00%

43.00%

Gross accounts receivable

225,134

'

'

'

239,151

'

'

'

225,134

239,151

245,952

% of total gross accounts receivable

100.00%

'

'

'

100.00%

'

'

'

100.00%

100.00%

100.00%

Operating Segments | Americas

'

'

'

'

'

'

'

'

'

'

'

Segment Reporting Information [Line Items]

'

'

'

'

'

'

'

'

'

'

'

Revenue

'

'

'

'

'

'

'

'

694,522

[1]

689,099

[1]

693,288

[1]

% of total revenue

'

'

'

'

'

'

'

'

50.00%

49.00%

49.00%

Contribution margin

'

'

'

'

'

'

'

'

270,786

281,229

280,259

% of segment revenue

'

'

'

'

'

'

'

'

39.00%

41.00%

40.00%

Gross accounts receivable

86,243

'

'

'

100,494

'

'

'

86,243

100,494

96,318

% of total gross accounts receivable

38.00%

'

'

'

42.00%

'

'

'

38.00%

42.00%

39.00%

Operating Segments | EMEA

'

'

'

'

'

'

'

'

'

'

'

Segment Reporting Information [Line Items]

'

'

'

'

'

'

'

'

'

'

'

Revenue

'

'

'

'

'

'

'

'

338,035

[1]

345,723

[1]

347,703

[1]

% of total revenue

'

'

'

'

'

'

'

'

25.00%

25.00%

25.00%

Contribution margin

'

'

'

'

'

'

'

'

142,686

138,886

141,421

% of segment revenue

'

'

'

'

'

'

'

'

42.00%

40.00%

41.00%

Gross accounts receivable

71,970

'

'

'

67,529

'

'

'

71,970

67,529

77,975

% of total gross accounts receivable

32.00%

'

'

'

28.00%

'

'

'

32.00%

28.00%

32.00%

Operating Segments | APAC

'

'

'

'

'

'

'

'

'

'

'

Segment Reporting Information [Line Items]

'

'

'

'

'

'

'

'

'

'

'

Revenue

'

'

'

'

'

'

'

'

335,832

[1]

357,806

[1]

361,198

[1]

% of total revenue

'

'

'

'

'

'

'

'

25.00%

26.00%

26.00%

Contribution margin

'

'

'

'

'

'

'

'

136,462

147,699

175,242

% of segment revenue

'

'

'

'

'

'

'

'

41.00%

41.00%

49.00%

Gross accounts receivable

$66,921

'

'

'

$71,128

'

'

'

$66,921

$71,128

$71,659

% of total gross accounts receivable

30.00%

'

'

'

30.00%

'

'

'

30.00%

30.00%

29.00%

[1]

The United States and China, individually, accounted for more than 10% of the Company’s revenues in 2013, 2012 and 2011. Net revenues in the United States were $589.6 million, $583.0 million, and $593.6 million for the years ended December 31, 2013, 2012, and 2011, respectively. Net revenues in China were $147.3 million, $159.3 million, and $161.5 million for the years ended December 31, 2013, 2012 and 2011, respectively. During 2013, 2012, and 2011, one customer from the Americas segment, ScanSource Communications, accounted for 16%, 14%, and 14%, respectively, of the Company’s revenues. At December 31, 2013, ScanSource accounted for 11% of total gross accounts receivable and no single customer accounted for more than 10% of gross accounts receivable at December 31, 2012 and 2011.

Financial_Information_by_Repor1

Financial Information by Reportable Segment (Parenthetical) (Detail) (USD $)

3 Months Ended

12 Months Ended

In Thousands, unless otherwise specified

Dec. 31, 2013

Sep. 30, 2013

Jun. 30, 2013

Mar. 31, 2013

Dec. 31, 2012

Sep. 30, 2012

Jun. 30, 2012

Mar. 31, 2012

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2011

Segment Reporting Information [Line Items]

'

'

'

'

'

'

'

'

'

'

'

Revenue

$347,942

$336,461

$345,234

$338,752

$353,026

$335,392

$358,500

$345,710

$1,368,389

[1]

$1,392,628

[1]

$1,402,189

[1]

Operating Segments | Americas

'

'

'

'

'

'

'

'

'

'

'

Segment Reporting Information [Line Items]

'

'

'

'

'

'

'

'

'

'

'

Revenue

'

'

'

'

'

'

'

'

694,522

[1]

689,099

[1]

693,288

[1]

Revenue

'

'

'

'

'

'

'

'

16.00%

14.00%

14.00%

Accounts Receivable | Operating Segments | Americas

'

'

'

'

'

'

'

'

'

'

'

Segment Reporting Information [Line Items]

'

'

'

'

'

'

'

'

'

'

'

Revenue

'

'

'

'

'

'

'

'

11.00%

'

'

United States

'

'

'

'

'

'

'

'

'

'

'

Segment Reporting Information [Line Items]

'

'

'

'

'

'

'

'

'

'

'

Revenue

'

'

'

'

'

'

'

'

589,600

583,000

593,600

United States | Operating Segments

'

'

'

'

'

'

'

'

'

'

'

Segment Reporting Information [Line Items]

'

'

'

'

'

'

'

'

'

'

'

Single customer accounted for more than 10% of gross accounts receivable

1

'

'

'

0

'

'

'

1

0

0

China

'

'

'

'

'

'

'

'

'

'

'

Segment Reporting Information [Line Items]

'

'

'

'

'

'

'

'

'

'

'

Revenue

'

'

'

'

'

'

'

'

$147,300

$159,300

$161,500

[1]

The United States and China, individually, accounted for more than 10% of the Company’s revenues in 2013, 2012 and 2011. Net revenues in the United States were $589.6 million, $583.0 million, and $593.6 million for the years ended December 31, 2013, 2012, and 2011, respectively. Net revenues in China were $147.3 million, $159.3 million, and $161.5 million for the years ended December 31, 2013, 2012 and 2011, respectively. During 2013, 2012, and 2011, one customer from the Americas segment, ScanSource Communications, accounted for 16%, 14%, and 14%, respectively, of the Company’s revenues. At December 31, 2013, ScanSource accounted for 11% of total gross accounts receivable and no single customer accounted for more than 10% of gross accounts receivable at December 31, 2012 and 2011.

Reconciliation_of_Segment_Info

Reconciliation of Segment Information to Consolidated Totals (Detail) (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Segment Reporting Information [Line Items]	'	'	'
Segment contribution margin	$549,934	$567,814	$596,922
Corporate and unallocated costs	-430,471	-418,465	-369,412
Stock-based compensation	-64,465	-88,761	-63,853
Effect of stock-based compensation cost on warranty expense	-547	-669	-546
Transaction-related costs	-3,424	-14,064	-9,688
Amortization of purchased intangibles	-19,750	-17,465	-11,201
Restructuring costs	-48,470	-22,024	-9,396
Interest and other income (expense), net	-5,011	-3,868	-1,672
Income (loss) from continuing operations before provision for income taxes	-22,204	2,498	131,154
Gross accounts receivable	225,134	239,151	245,952
Returns and related reserves	-38,938	-41,576	-33,416
Allowance for doubtful accounts	-2,827	-2,921	-1,732
Total trade receivables, net	$183,369	$194,654	$210,804

Revenues_by_Groups_of_Similar_

Revenues by Groups of Similar Products and Services (Detail) (USD $)

3 Months Ended

12 Months Ended

In Thousands, unless otherwise specified

Dec. 31, 2013

Sep. 30, 2013

Jun. 30, 2013

Mar. 31, 2013

Dec. 31, 2012

Sep. 30, 2012

Jun. 30, 2012

Mar. 31, 2012

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2011

Entity Wide Information Revenue From External Customer [Line Items]

'

'

'

'

'

'

'

'

'

'

'

Net Revenues

$347,942

$336,461

$345,234

$338,752

$353,026

$335,392

$358,500

$345,710

$1,368,389

[1]

$1,392,628

[1]

$1,402,189

[1]

Operating Segments | UC Group Systems

'

'

'

'

'

'

'

'

'

'

'

Entity Wide Information Revenue From External Customer [Line Items]

'

'

'

'

'

'

'

'

'

'

'

Net Revenues

'

'

'

'

'

'

'

'

904,923

956,153

971,753

Operating Segments | UC Personal Devices

'

'

'

'

'

'

'

'

'

'

'

Entity Wide Information Revenue From External Customer [Line Items]

'

'

'

'

'

'

'

'

'

'

'

Net Revenues

'

'

'

'

'

'

'

'

219,103

180,939

175,673

Operating Segments | UC Platform

'

'

'

'

'

'

'

'

'

'

'

Entity Wide Information Revenue From External Customer [Line Items]

'

'

'

'

'

'

'

'

'

'

'

Net Revenues

'

'

'

'

'

'

'

'

$244,363

$255,536

$254,763

[1]

The United States and China, individually, accounted for more than 10% of the Company’s revenues in 2013, 2012 and 2011. Net revenues in the United States were $589.6 million, $583.0 million, and $593.6 million for the years ended December 31, 2013, 2012, and 2011, respectively. Net revenues in China were $147.3 million, $159.3 million, and $161.5 million for the years ended December 31, 2013, 2012 and 2011, respectively. During 2013, 2012, and 2011, one customer from the Americas segment, ScanSource Communications, accounted for 16%, 14%, and 14%, respectively, of the Company’s revenues. At December 31, 2013, ScanSource accounted for 11% of total gross accounts receivable and no single customer accounted for more than 10% of gross accounts receivable at December 31, 2012 and 2011.

Fixed_Assets_Net_of_Accumulate

Fixed Assets, Net of Accumulated Depreciation by Geographical Area (Detail) (USD $)	Dec. 31, 2013	Dec. 31, 2012
In Thousands, unless otherwise specified
Segment Reporting Information [Line Items]	'	'
Property Plant And Equipment	$115,157	$133,319
Operating Segments | United States	'	'
Segment Reporting Information [Line Items]	'	'
Property Plant And Equipment	79,345	89,830
Operating Segments | EMEA	'	'
Segment Reporting Information [Line Items]	'	'
Property Plant And Equipment	13,036	15,148
Operating Segments | APAC	'	'
Segment Reporting Information [Line Items]	'	'
Property Plant And Equipment	21,403	26,408
Operating Segments | Other	'	'
Segment Reporting Information [Line Items]	'	'
Property Plant And Equipment	$1,373	$1,933

Schedule_of_Quarterly_Financia

Schedule of Quarterly Financial Information (Detail) (USD $)	1 Months Ended	3 Months Ended								12 Months Ended
In Thousands, except Per Share data, unless otherwise specified	Dec. 04, 2012	Dec. 31, 2013	Sep. 30, 2013	Jun. 30, 2013	Mar. 31, 2013	Dec. 31, 2012	Sep. 30, 2012	Jun. 30, 2012	Mar. 31, 2012	Dec. 31, 2013		Dec. 31, 2012		Dec. 31, 2011
Selected Quarterly Financial Information [Abstract]	'	'	'	'	'	'	'	'	'	'		'		'
Net Revenues	'	$347,942	$336,461	$345,234	$338,752	$353,026	$335,392	$358,500	$345,710	$1,368,389	[1]	$1,392,628	[1]	$1,402,189	[1]
Gross profit	'	197,032	195,044	201,598	199,097	206,816	196,358	213,922	206,336	792,771		823,432		858,264
Net income (loss) from continuing operations	'	-1,969	-23,978	5,295	2,117	-35,689	-15,406	1,962	12,164	-18,535		-36,969		124,930
Net income from operations of discontinued operations	'	'	'	'	'	2,178	645	4,313	2,752	'		'		'
Net gain from sale of discontinued operations	35,400	'	'	'	459	35,425	'	'	'	459		35,425		'
Net income (loss)	'	($1,969)	($23,978)	$5,295	$2,576	$1,914	($14,761)	$6,275	$14,917	($18,076)		$8,344		$134,836
Basic net income (loss) per share:	'	'	'	'	'	'	'	'	'	'		'		'
Net income (loss) per share from continuing operations	'	($0.01)	($0.14)	$0.03	$0.01	($0.20)	($0.09)	$0.01	$0.07	($0.11)		($0.21)		$0.71
Net income per share from operations of discontinued operations	'	'	'	'	'	$0.01	$0	$0.02	$0.02	'		$0.06		$0.06
Net gain per share from operations of discontinued operations	'	'	'	'	'	$0.20	'	'	'	'		$0.20		'
Basic net income per share	'	($0.01)	($0.14)	$0.03	$0.01	$0.01	($0.08)	$0.04	$0.08	($0.11)		$0.05		$0.76
Diluted net income (loss) per share:	'	'	'	'	'	'	'	'	'	'		'		'
Net income (loss) per share from continuing operations	'	($0.01)	($0.14)	$0.03	$0.01	($0.20)	($0.09)	$0.01	$0.07	($0.11)		($0.21)		$0.69
Net income per share from operations of discontinued operations	'	'	'	'	'	$0.01	$0	$0.02	$0.02	'		$0.06		$0.05
Net gain per share from operations of discontinued operations	'	'	'	'	'	$0.20	'	'	'	'		$0.20		'
Diluted net income (loss) per share	'	($0.01)	($0.14)	$0.03	$0.01	$0.01	($0.08)	$0.04	$0.08	($0.11)		$0.05		$0.74
[1]	The United States and China, individually, accounted for more than 10% of the Company’s revenues in 2013, 2012 and 2011. Net revenues in the United States were $589.6 million, $583.0 million, and $593.6 million for the years ended December 31, 2013, 2012, and 2011, respectively. Net revenues in China were $147.3 million, $159.3 million, and $161.5 million for the years ended December 31, 2013, 2012 and 2011, respectively. During 2013, 2012, and 2011, one customer from the Americas segment, ScanSource Communications, accounted for 16%, 14%, and 14%, respectively, of the Company’s revenues. At December 31, 2013, ScanSource accounted for 11% of total gross accounts receivable and no single customer accounted for more than 10% of gross accounts receivable at December 31, 2012 and 2011.

Recovered_Sheet1

Valuation and Qualifying Accounts (Detail) (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Allowance for doubtful accounts	'	'	'
Valuation And Qualifying Accounts Disclosure [Line Items]	'	'	'
Balance at Beginning of Year	$2,921	$1,732	$1,844
Additions	'	1,189	'
Deductions	-94	'	-112
Balance at End of Year	2,827	2,921	1,732
Sales returns and allowances	'	'	'
Valuation And Qualifying Accounts Disclosure [Line Items]	'	'	'
Balance at Beginning of Year	37,422	30,602	24,855
Additions	93,101	91,356	71,534
Deductions	-95,869	-84,536	-65,787
Balance at End of Year	34,654	37,422	30,602
Income tax valuation allowance	'	'	'
Valuation And Qualifying Accounts Disclosure [Line Items]	'	'	'
Balance at Beginning of Year	3,161	3,301	'
Additions	460	'	3,301
Deductions	-262	-140	'
Balance at End of Year	$3,359	$3,161	$3,301