Condensed Consolidated Balance Sheets (USD $) In Thousands, unless otherwise specified	Mar. 31, 2015	Dec. 31, 2014	Mar. 31, 2014	Dec. 31, 2013
ASSETS
Cash and cash equivalents	$ 392,017	$ 433,663	$ 208,068	$ 207,801
Short-term investments	85,759us-gaap_ShortTermInvestments	96,206us-gaap_ShortTermInvestments
Accounts receivable, net of allowances of $3,802 and $3,685, respectively	82,572us-gaap_AccountsReceivableNetCurrent	91,699us-gaap_AccountsReceivableNetCurrent
Prepaid expenses and other current assets	24,611	22,602
Deferred income taxes	2,146us-gaap_DeferredTaxAssetsNetCurrent	2,013us-gaap_DeferredTaxAssetsNetCurrent
Total current assets	587,105us-gaap_AssetsCurrent	646,183us-gaap_AssetsCurrent
Long-term investments	61,718us-gaap_LongTermInvestments	60,508us-gaap_LongTermInvestments
Property and equipment, net	36,618us-gaap_PropertyPlantAndEquipmentNet	38,217us-gaap_PropertyPlantAndEquipmentNet
Tradenames, net	105,854jcom_TradenamesNet	105,551jcom_TradenamesNet
Patent and patent licenses, net	22,968jcom_PatentAndPatentLicensesNet	24,927jcom_PatentAndPatentLicensesNet
Customer relationships, net	184,328jcom_CustomerRelationshipsNet	163,766jcom_CustomerRelationshipsNet
Goodwill	669,374us-gaap_Goodwill	635,675us-gaap_Goodwill
Other purchased intangibles, net	16,146us-gaap_OtherIntangibleAssetsNet	17,556us-gaap_OtherIntangibleAssetsNet
Other assets	14,125us-gaap_OtherAssetsNoncurrent	12,819us-gaap_OtherAssetsNoncurrent
Total assets	1,698,236us-gaap_Assets	1,705,202us-gaap_Assets
LIABILITIES AND STOCKHOLDERS' EQUITY
Accounts payable and accrued expenses	81,008	95,310
Income taxes payable	2,959us-gaap_TaxesPayableCurrent	0us-gaap_TaxesPayableCurrent
Deferred revenue, current	73,278us-gaap_DeferredRevenueCurrent	63,457us-gaap_DeferredRevenueCurrent
Capital Lease Obligations, Current	441us-gaap_CapitalLeaseObligationsCurrent	258us-gaap_CapitalLeaseObligationsCurrent
Deferred income taxes	185us-gaap_DeferredTaxLiabilitiesCurrent	342us-gaap_DeferredTaxLiabilitiesCurrent
Total current liabilities	157,871us-gaap_LiabilitiesCurrent	159,367us-gaap_LiabilitiesCurrent
Long-term Debt	595,266us-gaap_LongTermDebt	593,350us-gaap_LongTermDebt
Capital Lease Obligations, Noncurrent	66	141
Liability for uncertain tax positions	40,145	37,551
Deferred income taxes	63,109	61,960
Deferred revenue, non-current	8,905us-gaap_DeferredRevenueNoncurrent	10,182us-gaap_DeferredRevenueNoncurrent
Other long-term liabilities	17,915us-gaap_OtherLiabilitiesNoncurrent	22,416us-gaap_OtherLiabilitiesNoncurrent
Total liabilities	883,277us-gaap_Liabilities	884,967us-gaap_Liabilities
Commitments and contingencies
Common stock, $0.01 par value. Authorized 95,000,000; total issued and outstanding 47,435,192 and 47,409,514 shares, respectively	474us-gaap_CommonStockValue	474us-gaap_CommonStockValue
Additional paid-in capital	275,420us-gaap_AdditionalPaidInCapital	273,304us-gaap_AdditionalPaidInCapital
Retained Earnings (Accumulated Deficit)	561,049	553,584
Accumulated other comprehensive loss	(21,984)	(7,127)
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest	814,959	820,235
Total liabilities and stockholders' equity	1,698,236	1,705,202
Series A Preferred Stock [Member]
LIABILITIES AND STOCKHOLDERS' EQUITY
Preferred stock, $0.01 par value	0	0
Series B Preferred Stock [Member]
LIABILITIES AND STOCKHOLDERS' EQUITY
Preferred stock, $0.01 par value	$ 0	$ 0

Gross carrying amount (original costs adjusted for previously recognized amortization and impairment) as of the balance sheet date to an asset acquired in a business combination representing a favorable existing relationship with customers having a finite beneficial life.

No definition available.