$CCOI
COGENT COMMUNICATIONS HOLDINGS, INC. Stock $ccoi

$ccoi Overview Financials Valuation SEC Filings Company Website

2012 Q4 Form 10-K Financial Statement

#000104746913001769 Filed on February 27, 2013

Income Statement

Concept	2012 Q4	2012 Q1	2011 Q4
Revenue	$82.61M	$76.89M	$79.09M
YoY Change	4.45%	4.67%	13.8%
Cost Of Revenue	$37.65M	$34.34M	$33.52M
YoY Change	12.32%	8.07%	7.79%
Gross Profit	$44.96M	$42.55M	$45.57M
YoY Change	-1.34%	2.07%	18.67%
Gross Profit Margin	54.42%	55.34%	57.62%
Selling, General & Admin	$19.70M	$21.30M	$19.50M
YoY Change	1.03%	9.23%	9.55%
% of Gross Profit	43.82%	50.06%	42.79%
Research & Development
YoY Change
% of Gross Profit
Depreciation & Amortization	$16.10M	$15.20M	$15.10M
YoY Change	6.62%	2.7%	-73.27%
% of Gross Profit	35.81%	35.72%	33.14%
Operating Expenses	$35.70M	$36.60M	$34.70M
YoY Change	2.88%	6.71%	6.44%
Operating Profit	$9.169M	$5.968M	$10.90M
YoY Change	-15.87%	-18.89%	87.91%
Interest Expense	-$8.400M	-$8.600M	-$8.600M
YoY Change	-2.33%	16.22%	109.76%
% of Operating Profit	-91.61%	-144.1%	-78.91%
Other Income/Expense, Net
YoY Change
Pretax Income	$800.0K	-$2.700M	$2.300M
YoY Change	-65.22%		35.29%
Income Tax	$1.100M	-$600.0K	-$3.100M
% Of Pretax Income	137.5%		-134.78%
Net Earnings	-$300.0K	-$2.100M	$5.400M
YoY Change	-105.56%	600.0%	107.69%
Net Earnings / Revenue	-0.36%	-2.73%	6.83%
Basic Earnings Per Share
Diluted Earnings Per Share	-$6.593K	-$46.46K	$118.4K
COMMON SHARES
Basic Shares Outstanding	45.49M shares	45.24M shares	45.04M shares
Diluted Shares Outstanding	45.49M shares	45.24M shares	45.58M shares

Balance Sheet

Concept	2012 Q4	2012 Q1	2011 Q4
SHORT-TERM ASSETS
Cash & Short-Term Investments	$247.3M	$232.3M	$238.2M
YoY Change	3.82%	3.11%	323.09%
Cash & Equivalents	$247.3M	$232.3M	$238.2M
Short-Term Investments
Other Short-Term Assets	$10.00M	$12.30M	$10.10M
YoY Change	-0.99%	10.81%	16.09%
Inventory
Prepaid Expenses
Receivables	$23.99M	$24.90M	$25.03M
Other Receivables	$0.00	$0.00	$0.00
Total Short-Term Assets	$281.3M	$269.5M	$273.3M
YoY Change	2.91%	3.3%	208.31%
LONG-TERM ASSETS
Property, Plant & Equipment	$311.2M	$311.1M	$308.0M
YoY Change	1.04%	3.46%	9.81%
Goodwill
YoY Change
Intangibles
YoY Change
Long-Term Investments
YoY Change
Other Assets	$14.10M	$16.60M	$16.40M
YoY Change	-14.02%	46.9%	134.29%
Total Long-Term Assets	$325.3M	$327.8M	$324.4M
YoY Change	0.28%	5.06%	12.84%
TOTAL ASSETS
Total Short-Term Assets	$281.3M	$269.5M	$273.3M
Total Long-Term Assets	$325.3M	$327.8M	$324.4M
Total Assets	$606.5M	$597.3M	$597.7M
YoY Change	1.49%	4.26%	58.91%
SHORT-TERM LIABILITIES
YoY Change
Accounts Payable	$14.73M	$15.30M	$14.20M
YoY Change	3.77%	15.91%	-11.14%
Accrued Expenses	$26.52M	$20.50M	$21.94M
YoY Change	20.85%	2.5%	12.31%
Deferred Revenue
YoY Change
Short-Term Debt	$0.00	$0.00	$0.00
YoY Change
Long-Term Debt Due	$10.50M	$9.700M	$11.70M
YoY Change	-10.26%	25.97%	91.8%
Total Short-Term Liabilities	$51.74M	$45.50M	$47.84M
YoY Change	8.15%	11.25%	14.84%
LONG-TERM LIABILITIES
Long-Term Debt	$384.9M	$376.4M	$374.6M
YoY Change	2.75%	2.01%	111.88%
Other Long-Term Liabilities	$10.07M	$10.40M	$11.20M
YoY Change	-10.11%	70.49%	91.11%
Total Long-Term Liabilities	$10.07M	$386.8M	$11.20M
YoY Change	-10.11%	3.12%	91.11%
TOTAL LIABILITIES
Total Short-Term Liabilities	$51.74M	$45.50M	$47.84M
Total Long-Term Liabilities	$10.07M	$386.8M	$11.20M
Total Liabilities	$446.8M	$432.3M	$433.7M
YoY Change	3.02%	3.92%	93.33%
SHAREHOLDERS EQUITY
Retained Earnings	-$338.3M		-$324.5M
YoY Change	4.25%
Common Stock	$497.4M		$489.1M
YoY Change	1.7%
Preferred Stock
YoY Change
Treasury Stock (at cost)
YoY Change
Treasury Stock Shares
Shareholders Equity	$159.8M	$165.0M	$164.0M
YoY Change
Total Liabilities & Shareholders Equity	$606.5M	$597.3M	$597.7M
YoY Change	1.49%	4.26%	58.91%

Cashflow Statement

Concept	2012 Q4	2012 Q1	2011 Q4
OPERATING ACTIVITIES
Net Income	-$300.0K	-$2.100M	$5.400M
YoY Change	-105.56%	600.0%	107.69%
Depreciation, Depletion And Amortization	$16.10M	$15.20M	$15.10M
YoY Change	6.62%	2.7%	-73.27%
Cash From Operating Activities	$32.30M	$12.70M	$27.30M
YoY Change	18.32%	-5.93%	24.09%
INVESTING ACTIVITIES
Capital Expenditures	-$10.20M	-$12.30M	-$10.50M
YoY Change	-2.86%	-3.91%	-11.02%
Acquisitions
YoY Change
Other Investing Activities	$0.00	$100.0K	$0.00
YoY Change			-100.0%
Cash From Investing Activities	-$10.30M	-$12.20M	-$10.40M
YoY Change	-0.96%	-4.69%	-10.34%
FINANCING ACTIVITIES
Cash Dividend Paid
YoY Change
Common Stock Issuance & Retirement, Net
YoY Change
Debt Paid & Issued, Net
YoY Change
Cash From Financing Activities	-7.300M	-7.000M	-1.900M
YoY Change	284.21%	-104.18%	0.0%
NET CHANGE
Cash From Operating Activities	32.30M	12.70M	27.30M
Cash From Investing Activities	-10.30M	-12.20M	-10.40M
Cash From Financing Activities	-7.300M	-7.000M	-1.900M
Net Change In Cash	14.70M	-6.500M	15.00M
YoY Change	-2.0%	-103.86%	76.47%
FREE CASH FLOW
Cash From Operating Activities	$32.30M	$12.70M	$27.30M
Capital Expenditures	-$10.20M	-$12.30M	-$10.50M
Free Cash Flow	$42.50M	$25.00M	$37.80M
YoY Change	12.43%	-4.94%	11.83%

Facts In Submission

Frame	Concept Type	Concept / XBRL Key	Value	Unit
CY2012Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	247285000	USD
CY2011Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	238207000	USD
CY2012Q4	us-gaap	Accounts Receivable Net Current AccountsReceivableNetCurrent	23990000	USD
CY2011Q4	us-gaap	Accounts Receivable Net Current AccountsReceivableNetCurrent	25029000	USD
CY2012Q4	us-gaap	Prepaid Expense And Other Assets Current PrepaidExpenseAndOtherAssetsCurrent	9978000	USD
CY2011Q4	us-gaap	Prepaid Expense And Other Assets Current PrepaidExpenseAndOtherAssetsCurrent	10051000	USD
CY2012Q4	us-gaap	Assets Current AssetsCurrent	281253000	USD
CY2011Q4	us-gaap	Assets Current AssetsCurrent	273287000	USD
CY2012Q4	us-gaap	Property Plant And Equipment Gross PropertyPlantAndEquipmentGross	889229000	USD
CY2011Q4	us-gaap	Property Plant And Equipment Gross PropertyPlantAndEquipmentGross	836047000	USD
CY2012Q4	us-gaap	Accumulated Depreciation Depletion And Amortization Property Plant And Equipment AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment	578054000	USD
CY2011Q4	us-gaap	Accumulated Depreciation Depletion And Amortization Property Plant And Equipment AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment	528069000	USD
CY2012Q4	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	311175000	USD
CY2011Q4	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	307978000	USD
CY2012Q4	ccoi	Deposits And Other Assets Noncurrent DepositsAndOtherAssetsNoncurrent	14103000	USD
CY2011Q4	ccoi	Deposits And Other Assets Noncurrent DepositsAndOtherAssetsNoncurrent	16386000	USD
CY2012Q4	us-gaap	Assets Assets	606531000	USD
CY2011Q4	us-gaap	Assets Assets	597651000	USD
CY2012Q4	us-gaap	Accounts Payable Current AccountsPayableCurrent	14734000	USD
CY2011Q4	us-gaap	Accounts Payable Current AccountsPayableCurrent	14199000	USD
CY2012Q4	us-gaap	Accrued Liabilities Current AccruedLiabilitiesCurrent	26519000	USD
CY2011Q4	us-gaap	Accrued Liabilities Current AccruedLiabilitiesCurrent	21944000	USD
CY2012Q4	us-gaap	Capital Lease Obligations Current CapitalLeaseObligationsCurrent	10487000	USD
CY2011Q4	us-gaap	Capital Lease Obligations Current CapitalLeaseObligationsCurrent	11700000	USD
CY2012Q4	us-gaap	Liabilities Current LiabilitiesCurrent	51740000	USD
CY2011Q4	us-gaap	Liabilities Current LiabilitiesCurrent	47843000	USD
CY2012Q4	us-gaap	Senior Long Term Notes SeniorLongTermNotes	175000000	USD
CY2011Q4	us-gaap	Senior Long Term Notes SeniorLongTermNotes	175000000	USD
CY2012Q4	us-gaap	Capital Lease Obligations Noncurrent CapitalLeaseObligationsNoncurrent	127461000	USD
CY2011Q4	us-gaap	Capital Lease Obligations Noncurrent CapitalLeaseObligationsNoncurrent	122996000	USD
CY2012Q4	us-gaap	Convertible Long Term Notes Payable ConvertibleLongTermNotesPayable	82484000	USD
CY2011Q4	us-gaap	Convertible Long Term Notes Payable ConvertibleLongTermNotesPayable	76612000	USD
CY2012Q4	us-gaap	Other Liabilities Noncurrent OtherLiabilitiesNoncurrent	10067000	USD
CY2011Q4	us-gaap	Other Liabilities Noncurrent OtherLiabilitiesNoncurrent	11199000	USD
CY2012Q4	us-gaap	Liabilities Liabilities	446752000	USD
CY2011Q4	us-gaap	Liabilities Liabilities	433650000	USD
CY2011Q4	us-gaap	Commitments And Contingencies CommitmentsAndContingencies		USD
CY2012Q4	us-gaap	Commitments And Contingencies CommitmentsAndContingencies		USD
CY2012Q4	us-gaap	Common Stock Value CommonStockValue	47000	USD
CY2011Q4	us-gaap	Common Stock Value CommonStockValue	46000	USD
CY2012Q4	us-gaap	Additional Paid In Capital Common Stock AdditionalPaidInCapitalCommonStock	497349000	USD
CY2011Q4	us-gaap	Additional Paid In Capital Common Stock AdditionalPaidInCapitalCommonStock	489021000	USD
CY2012Q4	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	667000	USD
CY2011Q4	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	-582000	USD
CY2012Q4	us-gaap	Retained Earnings Accumulated Deficit RetainedEarningsAccumulatedDeficit	-338284000	USD
CY2011Q4	us-gaap	Retained Earnings Accumulated Deficit RetainedEarningsAccumulatedDeficit	-324484000	USD
CY2012Q4	us-gaap	Stockholders Equity StockholdersEquity	159779000	USD
CY2011Q4	us-gaap	Stockholders Equity StockholdersEquity	164001000	USD
CY2012Q4	us-gaap	Liabilities And Stockholders Equity LiabilitiesAndStockholdersEquity	606531000	USD
CY2011Q4	us-gaap	Liabilities And Stockholders Equity LiabilitiesAndStockholdersEquity	597651000	USD
CY2012Q4	us-gaap	Allowance For Doubtful Accounts Receivable Current AllowanceForDoubtfulAccountsReceivableCurrent	3083000	USD
CY2011Q4	us-gaap	Allowance For Doubtful Accounts Receivable Current AllowanceForDoubtfulAccountsReceivableCurrent	3345000	USD
CY2012	dei	Document Fiscal Year Focus DocumentFiscalYearFocus	2012
CY2012	us-gaap	Capital Lease Obligations Incurred CapitalLeaseObligationsIncurred	17805000	USD
CY2012	dei	Document Fiscal Period Focus DocumentFiscalPeriodFocus	FY
CY2010	us-gaap	Interest And Other Income InterestAndOtherIncome	959000	USD
CY2011	us-gaap	Operating Income Loss OperatingIncomeLoss	36506000	USD
CY2012	ccoi	Network Operations Include Equity Based Compensation Expense NetworkOperationsIncludeEquityBasedCompensationExpense	529000	USD
CY2011	ccoi	Network Operations Include Equity Based Compensation Expense NetworkOperationsIncludeEquityBasedCompensationExpense	510000	USD
CY2012	ccoi	Selling General And Administrative Expenses Include Equity Based Compensation Expense SellingGeneralAndAdministrativeExpensesIncludeEquityBasedCompensationExpense	7794000	USD
CY2012Q4	ccoi	Deposits And Other Restricted Assets Noncurrent DepositsAndOtherRestrictedAssetsNoncurrent	442000	USD
CY2011Q4	ccoi	Deposits And Other Restricted Assets Noncurrent DepositsAndOtherRestrictedAssetsNoncurrent	457000	USD
CY2012Q4	us-gaap	Debt Instrument Unamortized Discount DebtInstrumentUnamortizedDiscount	9494000	USD
CY2011Q4	us-gaap	Debt Instrument Unamortized Discount DebtInstrumentUnamortizedDiscount	15366000	USD
CY2012Q4	us-gaap	Common Stock Par Or Stated Value Per Share CommonStockParOrStatedValuePerShare	0.001
CY2011Q4	us-gaap	Common Stock Par Or Stated Value Per Share CommonStockParOrStatedValuePerShare	0.001
CY2012Q4	us-gaap	Common Stock Shares Authorized CommonStockSharesAuthorized	75000000	shares
CY2011Q4	us-gaap	Common Stock Shares Authorized CommonStockSharesAuthorized	75000000	shares
CY2012Q4	us-gaap	Common Stock Shares Issued CommonStockSharesIssued	47116644	shares
CY2011Q4	us-gaap	Common Stock Shares Issued CommonStockSharesIssued	45893347	shares
CY2012Q4	us-gaap	Common Stock Shares Outstanding CommonStockSharesOutstanding	47116644	shares
CY2011Q4	us-gaap	Common Stock Shares Outstanding CommonStockSharesOutstanding	45893347	shares
CY2012	us-gaap	Sales Revenue Services Net SalesRevenueServicesNet	316973000	USD
CY2011	us-gaap	Sales Revenue Services Net SalesRevenueServicesNet	305500000	USD
CY2010	us-gaap	Sales Revenue Services Net SalesRevenueServicesNet	263416000	USD
CY2012	us-gaap	Cost Of Services CostOfServices	143642000	USD
CY2011	us-gaap	Cost Of Services CostOfServices	132160000	USD
CY2010	us-gaap	Cost Of Services CostOfServices	119023000	USD
CY2012	us-gaap	Selling General And Administrative Expense SellingGeneralAndAdministrativeExpense	79885000	USD
CY2011	us-gaap	Selling General And Administrative Expense SellingGeneralAndAdministrativeExpense	76984000	USD
CY2010	us-gaap	Selling General And Administrative Expense SellingGeneralAndAdministrativeExpense	72060000	USD
CY2012	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	62478000	USD
CY2012	us-gaap	Amortization Of Financing Costs And Discounts AmortizationOfFinancingCostsAndDiscounts	6031000	USD
CY2012	us-gaap	Share Based Compensation ShareBasedCompensation	8323000	USD
CY2012	us-gaap	Costs And Expenses CostsAndExpenses	286005000	USD
CY2011	us-gaap	Costs And Expenses CostsAndExpenses	268994000	USD
CY2010	us-gaap	Costs And Expenses CostsAndExpenses	248201000	USD
CY2012	us-gaap	Operating Income Loss OperatingIncomeLoss	30968000	USD
CY2010	us-gaap	Operating Income Loss OperatingIncomeLoss	15215000	USD
CY2011	us-gaap	Gains Losses On Extinguishment Of Debt GainsLossesOnExtinguishmentOfDebt	2739000	USD
CY2012	us-gaap	Interest And Other Income InterestAndOtherIncome	1851000	USD
CY2011	us-gaap	Interest And Other Income InterestAndOtherIncome	848000	USD
CY2012	us-gaap	Interest Expense InterestExpense	36319000	USD
CY2011	us-gaap	Interest Expense InterestExpense	34511000	USD
CY2010	us-gaap	Interest Expense InterestExpense	16682000	USD
CY2012	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	-3500000	USD
CY2011	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	5582000	USD
CY2010	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	-508000	USD
CY2012	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	751000	USD
CY2011	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	-1960000	USD
CY2010	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	-1177000	USD
CY2012	us-gaap	Earnings Per Share Basic And Diluted EarningsPerShareBasicAndDiluted	-0.09
CY2011	us-gaap	Earnings Per Share Basic And Diluted EarningsPerShareBasicAndDiluted	0.17
CY2010	us-gaap	Earnings Per Share Basic And Diluted EarningsPerShareBasicAndDiluted	0.01
CY2012	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.21
CY2011	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	45704052	shares
CY2010	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	44790753	shares
CY2012	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	-3002000	USD
CY2011	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	5916000	USD
CY2010	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	-263000	USD
CY2010	ccoi	Network Operations Include Equity Based Compensation Expense NetworkOperationsIncludeEquityBasedCompensationExpense	370000	USD
CY2011	ccoi	Selling General And Administrative Expenses Include Equity Based Compensation Expense SellingGeneralAndAdministrativeExpensesIncludeEquityBasedCompensationExpense	7185000	USD
CY2010	ccoi	Selling General And Administrative Expenses Include Equity Based Compensation Expense SellingGeneralAndAdministrativeExpensesIncludeEquityBasedCompensationExpense	6267000	USD
CY2009Q4	us-gaap	Stockholders Equity StockholdersEquity	144484000	USD
CY2010Q4	us-gaap	Stockholders Equity StockholdersEquity	151801000	USD
CY2011Q4	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	45582580	shares
CY2010	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	7305000	USD
CY2011	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	8620000	USD
CY2012	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	9164000	USD
CY2010	us-gaap	Other Comprehensive Income Foreign Currency Transaction And Translation Adjustment Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationAdjustmentNetOfTaxPortionAttributableToParent	-932000	USD
CY2011	us-gaap	Other Comprehensive Income Foreign Currency Transaction And Translation Adjustment Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationAdjustmentNetOfTaxPortionAttributableToParent	-1626000	USD
CY2012	us-gaap	Other Comprehensive Income Foreign Currency Transaction And Translation Adjustment Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationAdjustmentNetOfTaxPortionAttributableToParent	1249000	USD
CY2010	us-gaap	Stock Issued During Period Value New Issues StockIssuedDuringPeriodValueNewIssues	1000	USD
CY2010	us-gaap	Stock Issued During Period Value Stock Options Exercised StockIssuedDuringPeriodValueStockOptionsExercised	274000	USD
CY2011	us-gaap	Stock Issued During Period Value Stock Options Exercised StockIssuedDuringPeriodValueStockOptionsExercised	633000	USD
CY2012	us-gaap	Stock Issued During Period Value Stock Options Exercised StockIssuedDuringPeriodValueStockOptionsExercised	404000	USD
CY2011	us-gaap	Stock Repurchased And Retired During Period Value StockRepurchasedAndRetiredDuringPeriodValue	2969000	USD
CY2012	us-gaap	Stock Repurchased And Retired During Period Value StockRepurchasedAndRetiredDuringPeriodValue	1265000	USD
CY2011	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	59850000	USD
CY2010	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	56524000	USD
CY2012	us-gaap	Gain Loss On Disposition Of Assets GainLossOnDispositionOfAssets	971000	USD
CY2011	us-gaap	Amortization Of Financing Costs And Discounts AmortizationOfFinancingCostsAndDiscounts	5609000	USD
CY2010	us-gaap	Amortization Of Financing Costs And Discounts AmortizationOfFinancingCostsAndDiscounts	4950000	USD
CY2011	us-gaap	Share Based Compensation ShareBasedCompensation	7695000	USD
CY2010	us-gaap	Share Based Compensation ShareBasedCompensation	6637000	USD
CY2011	us-gaap	Gain Loss On Sale Of Leased Assets Net Operating Leases GainLossOnSaleOfLeasedAssetsNetOperatingLeases	2739000	USD
CY2011	us-gaap	Gain Loss On Disposition Of Assets GainLossOnDispositionOfAssets	96000	USD
CY2012	us-gaap	Increase Decrease In Accounts Receivable IncreaseDecreaseInAccountsReceivable	-1247000	USD
CY2012	us-gaap	Increase Decrease In Prepaid Deferred Expense And Other Assets IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets	-459000	USD
CY2012	us-gaap	Increase Decrease In Deferred Income Taxes IncreaseDecreaseInDeferredIncomeTaxes	-2692000	USD
CY2012	ccoi	Increase Decrease In Deposits And Other Assets IncreaseDecreaseInDepositsAndOtherAssets	436000	USD
CY2012	us-gaap	Increase Decrease In Operating Liabilities IncreaseDecreaseInOperatingLiabilities	4371000	USD
CY2012	us-gaap	Net Cash Provided By Used In Operating Activities Continuing Operations NetCashProvidedByUsedInOperatingActivitiesContinuingOperations	79943000	USD
CY2011	us-gaap	Increase Decrease In Accounts Receivable IncreaseDecreaseInAccountsReceivable	1554000	USD
CY2011	us-gaap	Increase Decrease In Prepaid Deferred Expense And Other Assets IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets	1238000	USD
CY2011	us-gaap	Increase Decrease In Deferred Income Taxes IncreaseDecreaseInDeferredIncomeTaxes	5735000	USD
CY2011	ccoi	Increase Decrease In Deposits And Other Assets IncreaseDecreaseInDepositsAndOtherAssets	-343000	USD
CY2011	us-gaap	Increase Decrease In Operating Liabilities IncreaseDecreaseInOperatingLiabilities	6137000	USD
CY2011	us-gaap	Net Cash Provided By Used In Operating Activities Continuing Operations NetCashProvidedByUsedInOperatingActivitiesContinuingOperations	75814000	USD
CY2010	us-gaap	Increase Decrease In Accounts Receivable IncreaseDecreaseInAccountsReceivable	1603000	USD
CY2010	us-gaap	Increase Decrease In Prepaid Deferred Expense And Other Assets IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets	1257000	USD
CY2010	us-gaap	Increase Decrease In Deferred Income Taxes IncreaseDecreaseInDeferredIncomeTaxes	1436000	USD
CY2010	ccoi	Increase Decrease In Deposits And Other Assets IncreaseDecreaseInDepositsAndOtherAssets	888000	USD
CY2010	us-gaap	Increase Decrease In Operating Liabilities IncreaseDecreaseInOperatingLiabilities	7495000	USD
CY2010	us-gaap	Net Cash Provided By Used In Operating Activities Continuing Operations NetCashProvidedByUsedInOperatingActivitiesContinuingOperations	71477000	USD
CY2012	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	44337000	USD
CY2012	us-gaap	Proceeds From Sale Of Productive Assets ProceedsFromSaleOfProductiveAssets	141000	USD
CY2012	us-gaap	Net Cash Provided By Used In Investing Activities Continuing Operations NetCashProvidedByUsedInInvestingActivitiesContinuingOperations	-44196000	USD
CY2011	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	45856000	USD
CY2011	us-gaap	Proceeds From Sale Of Productive Assets ProceedsFromSaleOfProductiveAssets	44000	USD
CY2011	us-gaap	Net Cash Provided By Used In Investing Activities Continuing Operations NetCashProvidedByUsedInInvestingActivitiesContinuingOperations	-45812000	USD
CY2010	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	52757000	USD
CY2010	us-gaap	Proceeds From Sale Of Productive Assets ProceedsFromSaleOfProductiveAssets	530000	USD
CY2010	us-gaap	Net Cash Provided By Used In Investing Activities Continuing Operations NetCashProvidedByUsedInInvestingActivitiesContinuingOperations	-52227000	USD
CY2012	us-gaap	Payments Of Dividends Common Stock PaymentsOfDividendsCommonStock	9549000	USD
CY2012	us-gaap	Repayments Of Long Term Capital Lease Obligations RepaymentsOfLongTermCapitalLeaseObligations	16794000	USD
CY2012	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	1265000	USD
CY2012	us-gaap	Proceeds From Stock Options Exercised ProceedsFromStockOptionsExercised	404000	USD
CY2012	us-gaap	Net Cash Provided By Used In Financing Activities Continuing Operations NetCashProvidedByUsedInFinancingActivitiesContinuingOperations	-27204000	USD
CY2011	us-gaap	Proceeds From Issuance Of Senior Long Term Debt ProceedsFromIssuanceOfSeniorLongTermDebt	170512000	USD
CY2011	us-gaap	Repayments Of Long Term Capital Lease Obligations RepaymentsOfLongTermCapitalLeaseObligations	15540000	USD
CY2011	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	2969000	USD
CY2011	us-gaap	Proceeds From Stock Options Exercised ProceedsFromStockOptionsExercised	633000	USD
CY2012Q4	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	45492847	shares
CY2011Q1	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	44731858	shares
CY2011Q2	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	45021507	shares
CY2012Q2	us-gaap	Earnings Per Share Basic And Diluted EarningsPerShareBasicAndDiluted	-0.04
CY2011	us-gaap	Net Cash Provided By Used In Financing Activities Continuing Operations NetCashProvidedByUsedInFinancingActivitiesContinuingOperations	152636000	USD
CY2010	us-gaap	Repayments Of Long Term Capital Lease Obligations RepaymentsOfLongTermCapitalLeaseObligations	19148000	USD
CY2010	us-gaap	Proceeds From Stock Options Exercised ProceedsFromStockOptionsExercised	274000	USD
CY2010	us-gaap	Net Cash Provided By Used In Financing Activities Continuing Operations NetCashProvidedByUsedInFinancingActivitiesContinuingOperations	-18874000	USD
CY2012	us-gaap	Effect Of Exchange Rate On Cash And Cash Equivalents Continuing Operations EffectOfExchangeRateOnCashAndCashEquivalentsContinuingOperations	535000	USD
CY2011	us-gaap	Effect Of Exchange Rate On Cash And Cash Equivalents Continuing Operations EffectOfExchangeRateOnCashAndCashEquivalentsContinuingOperations	-714000	USD
CY2012	us-gaap	Net Cash Provided By Used In Continuing Operations NetCashProvidedByUsedInContinuingOperations	9078000	USD
CY2011	us-gaap	Net Cash Provided By Used In Continuing Operations NetCashProvidedByUsedInContinuingOperations	181924000	USD
CY2010	us-gaap	Net Cash Provided By Used In Continuing Operations NetCashProvidedByUsedInContinuingOperations	354000	USD
CY2012	us-gaap	Interest Paid InterestPaid	26107000	USD
CY2012	us-gaap	Income Taxes Paid IncomeTaxesPaid	428000	USD
CY2011	us-gaap	Interest Paid InterestPaid	24602000	USD
CY2011	us-gaap	Income Taxes Paid IncomeTaxesPaid	810000	USD
CY2011	us-gaap	Capital Lease Obligations Incurred CapitalLeaseObligationsIncurred	41959000	USD
CY2010	us-gaap	Interest Paid InterestPaid	11925000	USD
CY2010	us-gaap	Effect Of Exchange Rate On Cash And Cash Equivalents Continuing Operations EffectOfExchangeRateOnCashAndCashEquivalentsContinuingOperations	-22000	USD
CY2010	us-gaap	Income Taxes Paid IncomeTaxesPaid	303000	USD
CY2010	us-gaap	Capital Lease Obligations Incurred CapitalLeaseObligationsIncurred	23291000	USD
CY2010	us-gaap	Gain Loss On Disposition Of Assets GainLossOnDispositionOfAssets	208000	USD
CY2012	dei	Entity Registrant Name EntityRegistrantName	COGENT COMMUNICATIONS GROUP INC
CY2012	dei	Entity Central Index Key EntityCentralIndexKey	0001158324
CY2012	dei	Document Type DocumentType	10-K
CY2012	dei	Document Period End Date DocumentPeriodEndDate	2012-12-31
CY2012	dei	Amendment Flag AmendmentFlag	false
CY2012	dei	Current Fiscal Year End Date CurrentFiscalYearEndDate	--12-31
CY2012	dei	Entity Well Known Seasoned Issuer EntityWellKnownSeasonedIssuer	No
CY2012	dei	Entity Voluntary Filers EntityVoluntaryFilers	No
CY2012	dei	Entity Current Reporting Status EntityCurrentReportingStatus	Yes
CY2012	dei	Entity Filer Category EntityFilerCategory	Large Accelerated Filer
CY2012Q2	dei	Entity Public Float EntityPublicFloat	845000000	USD
CY2013Q1	dei	Entity Common Stock Shares Outstanding EntityCommonStockSharesOutstanding	47129700	shares
CY2012	us-gaap	Use Of Estimates UseOfEstimates	<div style='font-size:10.0pt;FONT-FAMILY: Times New Roman;'> <p style="FONT-FAMILY: times"><font size="2"><i>Use of estimates</i></font></p> <p style="FONT-FAMILY: times"><font size="2">        The preparation of consolidated financial statements in conformity with United States generally accepted accounting principles requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosures of contingent assets and liabilities at the date of the consolidated financial statements and the reported amounts of revenues and expenses during the reporting period. Actual results may differ from these estimates.</font></p></div>
CY2010	us-gaap	Income Loss From Continuing Operations Before Income Taxes Foreign IncomeLossFromContinuingOperationsBeforeIncomeTaxesForeign	-14868000	USD
CY2012	us-gaap	Income Loss From Continuing Operations Before Income Taxes Domestic IncomeLossFromContinuingOperationsBeforeIncomeTaxesDomestic	20411000	USD
CY2012	us-gaap	Income Loss From Continuing Operations Before Income Taxes Foreign IncomeLossFromContinuingOperationsBeforeIncomeTaxesForeign	-23911000	USD
CY2012Q4	us-gaap	Capital Leases Future Minimum Payments Due Current CapitalLeasesFutureMinimumPaymentsDueCurrent	29968000	USD
CY2012	us-gaap	Concentration Risk Credit Risk ConcentrationRiskCreditRisk	<div style='font-size:10.0pt;FONT-FAMILY: Times New Roman;'> <p style="FONT-FAMILY: times"><font size="2"><i>Concentrations of credit risk</i></font></p> <p style="FONT-FAMILY: times"><font size="2">        The Company's assets that are exposed to credit risk consist of its cash and cash equivalents, other assets and accounts receivable. As of December 31, 2012 and 2011, the Company's cash equivalents were invested in demand deposit accounts, overnight investments and money market funds. The Company places its cash equivalents in instruments that meet high-quality credit standards as specified in the Company's investment policy guidelines. Accounts receivable are due from customers located in major metropolitan areas in the United States, Europe, Canada and Mexico. Receivables from the Company's net-centric (wholesale) customers are subject to a higher degree of credit risk than the Company's corporate customers.</font></p> <p style="FONT-FAMILY: times"><font size="2">        The Company relies upon an equipment vendor for the majority of its network equipment and is also dependent upon many third-party fiber providers for providing its services to its customers.</font></p></div>
CY2010	us-gaap	Income Tax Reconciliation Nondeductible Expense IncomeTaxReconciliationNondeductibleExpense	735000	USD
CY2010	ccoi	Income Tax Reconciliation Alternative Minimum Tax IncomeTaxReconciliationAlternativeMinimumTax	-564000	USD
CY2010	us-gaap	Income Tax Reconciliation Other Adjustments IncomeTaxReconciliationOtherAdjustments	302000	USD
CY2010	us-gaap	Income Tax Reconciliation Change In Deferred Tax Assets Valuation Allowance IncomeTaxReconciliationChangeInDeferredTaxAssetsValuationAllowance	-2993000	USD
CY2012	us-gaap	Income Tax Reconciliation Income Tax Expense Benefit At Federal Statutory Income Tax Rate IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate	-1225000	USD
CY2012	us-gaap	Income Tax Reconciliation State And Local Income Taxes IncomeTaxReconciliationStateAndLocalIncomeTaxes	387000	USD
CY2012	us-gaap	Income Tax Reconciliation Tax Credits IncomeTaxReconciliationTaxCredits	315000	USD
CY2012Q4	us-gaap	Capital Leases Future Minimum Payments Due In Two Years CapitalLeasesFutureMinimumPaymentsDueInTwoYears	20194000	USD
CY2012Q4	us-gaap	Capital Leases Future Minimum Payments Due In Three Years CapitalLeasesFutureMinimumPaymentsDueInThreeYears	20343000	USD
CY2012Q4	us-gaap	Capital Leases Future Minimum Payments Due In Four Years CapitalLeasesFutureMinimumPaymentsDueInFourYears	19502000	USD
CY2012Q4	us-gaap	Capital Leases Future Minimum Payments Due In Five Years CapitalLeasesFutureMinimumPaymentsDueInFiveYears	19436000	USD
CY2012Q4	us-gaap	Capital Leases Future Minimum Payments Due Thereafter CapitalLeasesFutureMinimumPaymentsDueThereafter	190552000	USD
CY2012	us-gaap	Income Tax Reconciliation Foreign Income Tax Rate Differential IncomeTaxReconciliationForeignIncomeTaxRateDifferential	2744000	USD
CY2012	us-gaap	Income Tax Reconciliation Nondeductible Expense IncomeTaxReconciliationNondeductibleExpense	2707000	USD
CY2012	us-gaap	Income Tax Reconciliation Other Adjustments IncomeTaxReconciliationOtherAdjustments	-1552000	USD
CY2012	us-gaap	Income Tax Reconciliation Change In Deferred Tax Assets Valuation Allowance IncomeTaxReconciliationChangeInDeferredTaxAssetsValuationAllowance	10184000	USD
CY2011	us-gaap	Income Loss From Continuing Operations Before Income Taxes Domestic IncomeLossFromContinuingOperationsBeforeIncomeTaxesDomestic	27832000	USD
CY2011	us-gaap	Income Loss From Continuing Operations Before Income Taxes Foreign IncomeLossFromContinuingOperationsBeforeIncomeTaxesForeign	-22250000	USD
CY2010	us-gaap	Income Loss From Continuing Operations Before Income Taxes Domestic IncomeLossFromContinuingOperationsBeforeIncomeTaxesDomestic	14360000	USD
CY2012	us-gaap	Allowance For Loan And Lease Losses Provision For Loss Net AllowanceForLoanAndLeaseLossesProvisionForLossNet	5100000	USD
CY2011	us-gaap	Allowance For Loan And Lease Losses Provision For Loss Net AllowanceForLoanAndLeaseLossesProvisionForLossNet	4300000	USD
CY2010	us-gaap	Allowance For Loan And Lease Losses Provision For Loss Net AllowanceForLoanAndLeaseLossesProvisionForLossNet	4300000	USD
CY2012Q4	us-gaap	Letters Of Credit Outstanding Amount LettersOfCreditOutstandingAmount	400000	USD
CY2011Q4	us-gaap	Letters Of Credit Outstanding Amount LettersOfCreditOutstandingAmount	400000	USD
CY2011	ccoi	Incremental Common Shares Attributable To Stock Options IncrementalCommonSharesAttributableToStockOptions	83192	shares
CY2011	ccoi	Incremental Common Shares Attributable To Restricted Stock IncrementalCommonSharesAttributableToRestrictedStock	440375	shares
CY2012	ccoi	Property Plant And Equipment Compensation Costs Capitalized PropertyPlantAndEquipmentCompensationCostsCapitalized	7200000	USD
CY2011	ccoi	Property Plant And Equipment Compensation Costs Capitalized PropertyPlantAndEquipmentCompensationCostsCapitalized	7100000	USD
CY2010	ccoi	Property Plant And Equipment Compensation Costs Capitalized PropertyPlantAndEquipmentCompensationCostsCapitalized	5900000	USD
CY2012Q4	ccoi	Accrued Operating Current AccruedOperatingCurrent	8283000	USD
CY2012Q4	us-gaap	Deferred Revenue Current DeferredRevenueCurrent	4132000	USD
CY2012Q4	us-gaap	Employee Related Liabilities Current EmployeeRelatedLiabilitiesCurrent	2358000	USD
CY2012Q4	us-gaap	Accrual For Taxes Other Than Income Taxes Current AccrualForTaxesOtherThanIncomeTaxesCurrent	692000	USD
CY2012Q4	us-gaap	Interest Payable Current InterestPayableCurrent	11054000	USD
CY2012Q4	us-gaap	Other Accrued Liabilities Current OtherAccruedLiabilitiesCurrent	26519000	USD
CY2011Q4	ccoi	Accrued Operating Current AccruedOperatingCurrent	7204000	USD
CY2011Q4	us-gaap	Deferred Revenue Current DeferredRevenueCurrent	3978000	USD
CY2011Q4	us-gaap	Employee Related Liabilities Current EmployeeRelatedLiabilitiesCurrent	2160000	USD
CY2011Q4	us-gaap	Accrual For Taxes Other Than Income Taxes Current AccrualForTaxesOtherThanIncomeTaxesCurrent	1210000	USD
CY2011Q4	us-gaap	Interest Payable Current InterestPayableCurrent	7392000	USD
CY2011Q4	us-gaap	Other Accrued Liabilities Current OtherAccruedLiabilitiesCurrent	21944000	USD
CY2010	ccoi	Asset Retirement Obligation Reduction In Depreciation And Amortization Due To Revision Of Estimate AssetRetirementObligationReductionInDepreciationAndAmortizationDueToRevisionOfEstimate	700000	USD
CY2010	ccoi	Asset Retirement Obligation Reduction In Selling General And Administrative Expenses Due To Revision Of Estimate AssetRetirementObligationReductionInSellingGeneralAndAdministrativeExpensesDueToRevisionOfEstimate	200000	USD
CY2009Q4	us-gaap	Asset Retirement Obligation AssetRetirementObligation	1208000	USD
CY2010Q4	us-gaap	Asset Retirement Obligation AssetRetirementObligation	233000	USD
CY2011Q4	us-gaap	Asset Retirement Obligation AssetRetirementObligation	239000	USD
CY2012Q4	us-gaap	Asset Retirement Obligation AssetRetirementObligation	256000	USD
CY2010	us-gaap	Asset Retirement Obligation Foreign Currency Translation AssetRetirementObligationForeignCurrencyTranslation	-77000	USD
CY2011	us-gaap	Asset Retirement Obligation Foreign Currency Translation AssetRetirementObligationForeignCurrencyTranslation	-5000	USD
CY2012	us-gaap	Asset Retirement Obligation Foreign Currency Translation AssetRetirementObligationForeignCurrencyTranslation	5000	USD
CY2010	us-gaap	Asset Retirement Obligation Revision Of Estimate AssetRetirementObligationRevisionOfEstimate	-909000	USD
CY2010	us-gaap	Asset Retirement Obligation Accretion Expense AssetRetirementObligationAccretionExpense	11000	USD
CY2011	us-gaap	Asset Retirement Obligation Accretion Expense AssetRetirementObligationAccretionExpense	11000	USD
CY2012	us-gaap	Asset Retirement Obligation Accretion Expense AssetRetirementObligationAccretionExpense	12000	USD
CY2009Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	504000	USD
CY2011	us-gaap	Unrecognized Tax Benefits Increases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromPriorPeriodTaxPositions	2177000	USD
CY2010	us-gaap	Unrecognized Tax Benefits Increases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromPriorPeriodTaxPositions	194000	USD
CY2011	us-gaap	Income Tax Reconciliation Income Tax Expense Benefit At Federal Statutory Income Tax Rate IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate	1954000	USD
CY2011	us-gaap	Income Tax Reconciliation State And Local Income Taxes IncomeTaxReconciliationStateAndLocalIncomeTaxes	1368000	USD
CY2011	us-gaap	Income Tax Reconciliation Tax Credits IncomeTaxReconciliationTaxCredits	146000	USD
CY2011	us-gaap	Income Tax Reconciliation Foreign Income Tax Rate Differential IncomeTaxReconciliationForeignIncomeTaxRateDifferential	2561000	USD
CY2011	us-gaap	Income Tax Reconciliation Nondeductible Expense IncomeTaxReconciliationNondeductibleExpense	854000	USD
CY2011	us-gaap	Income Tax Reconciliation Other Adjustments IncomeTaxReconciliationOtherAdjustments	2969000	USD
CY2011	us-gaap	Income Tax Reconciliation Change In Deferred Tax Assets Valuation Allowance IncomeTaxReconciliationChangeInDeferredTaxAssetsValuationAllowance	-5992000	USD
CY2010	us-gaap	Income Tax Reconciliation Income Tax Expense Benefit At Federal Statutory Income Tax Rate IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate	-178000	USD
CY2010	us-gaap	Income Tax Reconciliation State And Local Income Taxes IncomeTaxReconciliationStateAndLocalIncomeTaxes	153000	USD
CY2010	us-gaap	Income Tax Reconciliation Tax Credits IncomeTaxReconciliationTaxCredits	17000	USD
CY2010	us-gaap	Income Tax Reconciliation Foreign Income Tax Rate Differential IncomeTaxReconciliationForeignIncomeTaxRateDifferential	1858000	USD
CY2012Q4	ccoi	Related Party Transaction Extension To Lease Term RelatedPartyTransactionExtensionToLeaseTerm	P2Y
CY2012Q4	us-gaap	Noncurrent Assets NoncurrentAssets	311222000	USD
CY2011Q4	us-gaap	Noncurrent Assets NoncurrentAssets	308043000	USD
CY2012	us-gaap	Number Of Operating Segments NumberOfOperatingSegments	1	Segment
CY2012	us-gaap	Current State And Local Tax Expense Benefit CurrentStateAndLocalTaxExpenseBenefit	-2285000	USD
CY2012	us-gaap	Current Foreign Tax Expense Benefit CurrentForeignTaxExpenseBenefit	344000	USD
CY2012	us-gaap	Deferred State And Local Income Tax Expense Benefit DeferredStateAndLocalIncomeTaxExpenseBenefit	1245000	USD
CY2012	us-gaap	Deferred Foreign Income Tax Expense Benefit DeferredForeignIncomeTaxExpenseBenefit	1447000	USD
CY2010	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	-563000	USD
CY2011	us-gaap	Current State And Local Tax Expense Benefit CurrentStateAndLocalTaxExpenseBenefit	3432000	USD
CY2010	us-gaap	Current State And Local Tax Expense Benefit CurrentStateAndLocalTaxExpenseBenefit	724000	USD
CY2011	us-gaap	Current Foreign Tax Expense Benefit CurrentForeignTaxExpenseBenefit	369000	USD
CY2010	us-gaap	Current Foreign Tax Expense Benefit CurrentForeignTaxExpenseBenefit	128000	USD
CY2011	us-gaap	Deferred State And Local Income Tax Expense Benefit DeferredStateAndLocalIncomeTaxExpenseBenefit	-6334000	USD
CY2011	us-gaap	Deferred Foreign Income Tax Expense Benefit DeferredForeignIncomeTaxExpenseBenefit	573000	USD
CY2010	us-gaap	Deferred Foreign Income Tax Expense Benefit DeferredForeignIncomeTaxExpenseBenefit	-1466000	USD
CY2012Q4	us-gaap	Deferred Tax Assets Operating Loss Carryforwards DeferredTaxAssetsOperatingLossCarryforwards	345000000	USD
CY2012Q4	ccoi	Deferred Tax Liabilities Convertible Notes DeferredTaxLiabilitiesConvertibleNotes	3415000	USD
CY2012Q4	us-gaap	Deferred Tax Assets Tax Credit Carryforwards DeferredTaxAssetsTaxCreditCarryforwards	2758000	USD
CY2012Q4	ccoi	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Accrued Liabilities And Other DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsAccruedLiabilitiesAndOther	6138000	USD
CY2012Q4	us-gaap	Deferred Tax Assets Valuation Allowance DeferredTaxAssetsValuationAllowance	347882000	USD
CY2012Q4	us-gaap	Deferred Tax Assets Liabilities Net DeferredTaxAssetsLiabilitiesNet	6186000	USD
CY2011Q4	us-gaap	Deferred Tax Assets Operating Loss Carryforwards DeferredTaxAssetsOperatingLossCarryforwards	335899000	USD
CY2011Q4	ccoi	Deferred Tax Liabilities Convertible Notes DeferredTaxLiabilitiesConvertibleNotes	5620000	USD
CY2011Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Compensation And Benefits Share Based Compensation Cost DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsShareBasedCompensationCost	566000	USD
CY2011Q4	us-gaap	Deferred Tax Assets Tax Credit Carryforwards DeferredTaxAssetsTaxCreditCarryforwards	2437000	USD
CY2011Q4	ccoi	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Accrued Liabilities And Other DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsAccruedLiabilitiesAndOther	5343000	USD
CY2011Q4	us-gaap	Deferred Tax Assets Valuation Allowance DeferredTaxAssetsValuationAllowance	337698000	USD
CY2011Q4	us-gaap	Deferred Tax Assets Liabilities Net DeferredTaxAssetsLiabilitiesNet	8784000	USD
CY2010	ccoi	Income Tax Expense Benefit Due To Reduction In Valuation Allowance IncomeTaxExpenseBenefitDueToReductionInValuationAllowance	1500000	USD
CY2011	ccoi	Income Tax Expense Benefit Due To Reduction In Valuation Allowance IncomeTaxExpenseBenefitDueToReductionInValuationAllowance	6300000	USD
CY2012Q4	ccoi	Number Of Subsidiaries Filing Income Tax Returns NumberOfSubsidiariesFilingIncomeTaxReturns	1	subsidiary
CY2012Q4	us-gaap	Operating Loss Carryforwards OperatingLossCarryforwards	1100000000	USD
CY2012	us-gaap	Unrecognized Tax Benefits Income Tax Penalties And Interest Expense UnrecognizedTaxBenefitsIncomeTaxPenaltiesAndInterestExpense	-600000	USD
CY2011	us-gaap	Unrecognized Tax Benefits Income Tax Penalties And Interest Expense UnrecognizedTaxBenefitsIncomeTaxPenaltiesAndInterestExpense	800000	USD
CY2010	us-gaap	Unrecognized Tax Benefits Income Tax Penalties And Interest Expense UnrecognizedTaxBenefitsIncomeTaxPenaltiesAndInterestExpense	100000	USD
CY2012Q4	us-gaap	Significant Change In Unrecognized Tax Benefits Is Reasonably Possible Amount Of Unrecorded Benefit SignificantChangeInUnrecognizedTaxBenefitsIsReasonablyPossibleAmountOfUnrecordedBenefit	-400000	USD
CY2011Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	2875000	USD
CY2012	us-gaap	Unrecognized Tax Benefits Increases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromPriorPeriodTaxPositions	745000	USD
CY2012Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	1312000	USD
CY2010Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	698000	USD
CY2012Q4	us-gaap	Capital Leases Future Minimum Payments Due CapitalLeasesFutureMinimumPaymentsDue	299995000	USD
CY2012Q4	us-gaap	Capital Leases Future Minimum Payments Interest Included In Payments CapitalLeasesFutureMinimumPaymentsInterestIncludedInPayments	162047000	USD
CY2012Q4	us-gaap	Capital Leases Future Minimum Payments Present Value Of Net Minimum Payments CapitalLeasesFutureMinimumPaymentsPresentValueOfNetMinimumPayments	137948000	USD
CY2011	us-gaap	Extinguishment Of Debt Amount ExtinguishmentOfDebtAmount	2700000	USD
CY2012Q4	us-gaap	Operating Leases Future Minimum Payments Due Current OperatingLeasesFutureMinimumPaymentsDueCurrent	48664000	USD
CY2012Q4	us-gaap	Operating Leases Future Minimum Payments Due In Two Years OperatingLeasesFutureMinimumPaymentsDueInTwoYears	41440000	USD
CY2012Q4	us-gaap	Operating Leases Future Minimum Payments Due In Three Years OperatingLeasesFutureMinimumPaymentsDueInThreeYears	36651000	USD
CY2012Q4	us-gaap	Operating Leases Future Minimum Payments Due In Four Years OperatingLeasesFutureMinimumPaymentsDueInFourYears	31212000	USD
CY2012Q4	us-gaap	Operating Leases Future Minimum Payments Due In Five Years OperatingLeasesFutureMinimumPaymentsDueInFiveYears	24634000	USD
CY2012Q4	us-gaap	Operating Leases Future Minimum Payments Due Thereafter OperatingLeasesFutureMinimumPaymentsDueThereafter	130689000	USD
CY2012Q4	us-gaap	Operating Leases Future Minimum Payments Due OperatingLeasesFutureMinimumPaymentsDue	313290000	USD
CY2012	us-gaap	Operating Leases Rent Expense Net OperatingLeasesRentExpenseNet	55800000	USD
CY2011	us-gaap	Operating Leases Rent Expense Net OperatingLeasesRentExpenseNet	55700000	USD
CY2010	us-gaap	Operating Leases Rent Expense Net OperatingLeasesRentExpenseNet	53500000	USD
CY2012Q4	us-gaap	Preferred Stock Shares Authorized PreferredStockSharesAuthorized	10000	shares
CY2012Q4	us-gaap	Unrecorded Unconditional Purchase Obligation Balance On Second Anniversary UnrecordedUnconditionalPurchaseObligationBalanceOnSecondAnniversary	21200000	USD
CY2012Q4	us-gaap	Unrecorded Unconditional Purchase Obligation Balance On Third Anniversary UnrecordedUnconditionalPurchaseObligationBalanceOnThirdAnniversary	4200000	USD
CY2012Q4	us-gaap	Unrecorded Unconditional Purchase Obligation Balance On Fourth Anniversary UnrecordedUnconditionalPurchaseObligationBalanceOnFourthAnniversary	1100000	USD
CY2012Q4	us-gaap	Unrecorded Unconditional Purchase Obligation Balance On Fifth Anniversary UnrecordedUnconditionalPurchaseObligationBalanceOnFifthAnniversary	1200000	USD
CY2012Q4	us-gaap	Unrecorded Unconditional Purchase Obligation Due After Five Years UnrecordedUnconditionalPurchaseObligationDueAfterFiveYears	23400000	USD
CY2012	us-gaap	Defined Contribution Plan Cost Recognized DefinedContributionPlanCostRecognized	400000	USD
CY2011	us-gaap	Defined Contribution Plan Cost Recognized DefinedContributionPlanCostRecognized	400000	USD
CY2010	us-gaap	Defined Contribution Plan Cost Recognized DefinedContributionPlanCostRecognized	300000	USD
CY2012Q1	us-gaap	Sales Revenue Services Net SalesRevenueServicesNet	76888000	USD
CY2012Q2	us-gaap	Sales Revenue Services Net SalesRevenueServicesNet	77817000	USD
CY2012Q3	us-gaap	Sales Revenue Services Net SalesRevenueServicesNet	79656000	USD
CY2012Q4	us-gaap	Sales Revenue Services Net SalesRevenueServicesNet	82612000	USD
CY2011Q1	us-gaap	Sales Revenue Services Net SalesRevenueServicesNet	73460000	USD
CY2011Q2	us-gaap	Sales Revenue Services Net SalesRevenueServicesNet	75580000	USD
CY2011Q3	us-gaap	Sales Revenue Services Net SalesRevenueServicesNet	77367000	USD
CY2011Q4	us-gaap	Sales Revenue Services Net SalesRevenueServicesNet	79093000	USD
CY2012Q1	us-gaap	Cost Of Services CostOfServices	34338000	USD
CY2012Q2	us-gaap	Cost Of Services CostOfServices	35112000	USD
CY2012Q3	us-gaap	Cost Of Services CostOfServices	36541000	USD
CY2012Q4	us-gaap	Cost Of Services CostOfServices	37651000	USD
CY2011Q1	us-gaap	Cost Of Services CostOfServices	31773000	USD
CY2011Q2	us-gaap	Cost Of Services CostOfServices	33249000	USD
CY2011Q3	us-gaap	Cost Of Services CostOfServices	33619000	USD
CY2011Q4	us-gaap	Cost Of Services CostOfServices	33522000	USD
CY2012Q1	us-gaap	Operating Income Loss OperatingIncomeLoss	5968000	USD
CY2012Q2	us-gaap	Operating Income Loss OperatingIncomeLoss	7801000	USD
CY2012Q3	us-gaap	Operating Income Loss OperatingIncomeLoss	8032000	USD
CY2012Q4	us-gaap	Operating Income Loss OperatingIncomeLoss	9169000	USD
CY2011Q1	us-gaap	Operating Income Loss OperatingIncomeLoss	7358000	USD
CY2011Q2	us-gaap	Operating Income Loss OperatingIncomeLoss	8671000	USD
CY2011Q3	us-gaap	Operating Income Loss OperatingIncomeLoss	9576000	USD
CY2011Q4	us-gaap	Operating Income Loss OperatingIncomeLoss	10899000	USD
CY2012Q1	us-gaap	Earnings Per Share Basic And Diluted EarningsPerShareBasicAndDiluted	-0.05
CY2012Q3	us-gaap	Earnings Per Share Basic And Diluted EarningsPerShareBasicAndDiluted	0.00
CY2012Q4	us-gaap	Earnings Per Share Basic And Diluted EarningsPerShareBasicAndDiluted	-0.01
CY2011Q1	us-gaap	Earnings Per Share Basic And Diluted EarningsPerShareBasicAndDiluted	-0.01
CY2011Q2	us-gaap	Earnings Per Share Basic And Diluted EarningsPerShareBasicAndDiluted	0.05
CY2011Q3	us-gaap	Earnings Per Share Basic And Diluted EarningsPerShareBasicAndDiluted	0.01
CY2011Q4	us-gaap	Earnings Per Share Basic And Diluted EarningsPerShareBasicAndDiluted	0.12
CY2012Q1	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	45241418	shares
CY2012Q2	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	45313804	shares
CY2012Q3	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	45377732	shares
CY2011Q3	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	45080859	shares
CY2011Q4	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	45044733	shares
CY2012Q1	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	45241418	shares
CY2012Q2	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	45313804	shares
CY2012Q3	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	45377732	shares
CY2012Q4	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	45492847	shares
CY2011Q1	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	44731858	shares
CY2011Q2	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	45548725	shares
CY2011Q3	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	45559972	shares
CY2012	ccoi	Income Tax Expense Benefit Due To Reduction In Valuation Allowance IncomeTaxExpenseBenefitDueToReductionInValuationAllowance	6300000	USD
CY2012Q4	us-gaap	Unrecorded Unconditional Purchase Obligation Balance On First Anniversary UnrecordedUnconditionalPurchaseObligationBalanceOnFirstAnniversary	24900000	USD
CY2012Q4	us-gaap	Preferred Stock Par Or Stated Value Per Share PreferredStockParOrStatedValuePerShare	0.001
CY2012	ccoi	Common Stock Voting Rights Per Share CommonStockVotingRightsPerShare	1	item
CY2008Q2	us-gaap	Stock Repurchase Program Authorized Amount StockRepurchaseProgramAuthorizedAmount	50000000	USD
CY2012	us-gaap	Stock Repurchased During Period Shares StockRepurchasedDuringPeriodShares	100000	shares
CY2011	us-gaap	Stock Repurchased During Period Shares StockRepurchasedDuringPeriodShares	200000	shares
CY2012Q3	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.10
CY2012Q4	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.11
CY2012Q3	us-gaap	Dividends Common Stock Cash DividendsCommonStockCash	4500000	USD
CY2012	us-gaap	Dividends Common Stock Cash DividendsCommonStockCash	9549000	USD
CY2009Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	55929000	USD
CY2010Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	56283000	USD
CY2010	us-gaap	Asset Impairment Charges AssetImpairmentCharges	594000	USD
CY2011	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	45180485	shares
CY2012Q4	us-gaap	Deferred Tax Assets Property Plant And Equipment DeferredTaxAssetsPropertyPlantAndEquipment	4187000	USD
CY2011Q4	us-gaap	Deferred Tax Assets Property Plant And Equipment DeferredTaxAssetsPropertyPlantAndEquipment	7857000	USD
CY2011Q1	us-gaap	Stock Repurchase Program Authorized Amount StockRepurchaseProgramAuthorizedAmount	50000000	USD
CY2012	us-gaap	Stock Issued During Period Value New Issues StockIssuedDuringPeriodValueNewIssues	1000	USD
CY2010	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	44633878	shares
CY2010	ccoi	Incremental Common Shares Attributable To Stock Options IncrementalCommonSharesAttributableToStockOptions	76336	shares
CY2010	ccoi	Incremental Common Shares Attributable To Restricted Stock IncrementalCommonSharesAttributableToRestrictedStock	80539	shares
CY2013Q1	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.12
CY2012	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	-4251000	USD
CY2011	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	7542000	USD
CY2010	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	669000	USD
CY2012	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	45514844	shares
CY2012	us-gaap	Adjustments To Additional Paid In Capital Tax Effect From Share Based Compensation AdjustmentsToAdditionalPaidInCapitalTaxEffectFromShareBasedCompensation	25000	USD
CY2012Q4	us-gaap	Deferred Tax Assets Gross DeferredTaxAssetsGross	358083000	USD
CY2011Q4	us-gaap	Deferred Tax Assets Gross DeferredTaxAssetsGross	352102000	USD
CY2012Q4	ccoi	Deferred Income Tax Liabilities Share Based Compensation DeferredIncomeTaxLiabilitiesShareBasedCompensation	600000	USD
CY2012Q4	us-gaap	Deferred Income Tax Liabilities DeferredIncomeTaxLiabilities	4015000	USD
CY2011Q4	us-gaap	Deferred Income Tax Liabilities DeferredIncomeTaxLiabilities	5620000	USD
CY2012Q4	ccoi	Net Deferred Tax Assets Before Valuation Allowance NetDeferredTaxAssetsBeforeValuationAllowance	354068000	USD
CY2011Q4	ccoi	Net Deferred Tax Assets Before Valuation Allowance NetDeferredTaxAssetsBeforeValuationAllowance	346482000	USD
CY2012Q4	ccoi	Reversal Of Unrecognized Tax Benefits ReversalOfUnrecognizedTaxBenefits	3300000	USD
CY2012Q4	ccoi	Unrecognized Tax Benefits Reversal Of Interest On Income Taxes Accrued UnrecognizedTaxBenefitsReversalOfInterestOnIncomeTaxesAccrued	1000000	USD
CY2012	ccoi	Income Tax Reconciliation Foreign Branch Tax Benefit IncomeTaxReconciliationForeignBranchTaxBenefit	9374000	USD
CY2011	ccoi	Income Tax Reconciliation Foreign Branch Tax Benefit IncomeTaxReconciliationForeignBranchTaxBenefit	9385000	USD
CY2010	ccoi	Income Tax Reconciliation Foreign Branch Tax Benefit IncomeTaxReconciliationForeignBranchTaxBenefit	5045000	USD
CY2012	ccoi	Income Tax Reconciliation Foreign Exchange Effect On Tax Assets IncomeTaxReconciliationForeignExchangeEffectOnTaxAssets	-3882000	USD
CY2011	ccoi	Income Tax Reconciliation Foreign Exchange Effect On Tax Assets IncomeTaxReconciliationForeignExchangeEffectOnTaxAssets	4133000	USD
CY2010	ccoi	Income Tax Reconciliation Foreign Exchange Effect On Tax Assets IncomeTaxReconciliationForeignExchangeEffectOnTaxAssets	4572000	USD
CY2012	us-gaap	Income Tax Reconciliation Other Reconciling Items IncomeTaxReconciliationOtherReconcilingItems	-4000	USD
CY2011	us-gaap	Income Tax Reconciliation Other Reconciling Items IncomeTaxReconciliationOtherReconcilingItems	-276000	USD
CY2012	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	45514844	shares
CY2011Q4	ccoi	Unrecognized Tax Benefits Income Tax Penalties And Interest And Tax Accrued UnrecognizedTaxBenefitsIncomeTaxPenaltiesAndInterestAndTaxAccrued	3900000	USD

Files In Submission

Name	View Source	Status
0001047469-13-001769-index-headers.html	Edgar Link	pending
0001047469-13-001769-index.html	Edgar Link	pending
0001047469-13-001769.txt	Edgar Link	pending
0001047469-13-001769-xbrl.zip	Edgar Link	pending
a2213021z10-k.htm	Edgar Link	pending
a2213021zex-10_31.htm	Edgar Link	pending
a2213021zex-21_1.htm	Edgar Link	pending
a2213021zex-23_1.htm	Edgar Link	pending
a2213021zex-31_1.htm	Edgar Link	pending
a2213021zex-31_2.htm	Edgar Link	pending
a2213021zex-32_1.htm	Edgar Link	pending
a2213021zex-32_2.htm	Edgar Link	pending
ccoi-20121231.xml	Edgar Link	completed
ccoi-20121231.xsd	Edgar Link	pending
ccoi-20121231_cal.xml	Edgar Link	unprocessable
ccoi-20121231_def.xml	Edgar Link	unprocessable
ccoi-20121231_lab.xml	Edgar Link	unprocessable
ccoi-20121231_pre.xml	Edgar Link	unprocessable
FilingSummary.xml	Edgar Link	unprocessable
Financial_Report.xls	Edgar Link	pending
g1015015.jpg	Edgar Link	pending
R1.htm	Edgar Link	pending
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report.css	Edgar Link	pending
Show.js	Edgar Link	pending

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$CCOI
COGENT COMMUNICATIONS HOLDINGS, INC. Stock $ccoi

2012 Q4 Form 10-K Financial Statement

#000104746913001769 Filed on February 27, 2013

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$CCOI COGENT COMMUNICATIONS HOLDINGS, INC. Stock $ccoi

2012 Q4 Form 10-K Financial Statement

#000104746913001769 Filed on February 27, 2013

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$CCOI
COGENT COMMUNICATIONS HOLDINGS, INC. Stock $ccoi