v2.4.0.6
Summary of significant accounting policies (Details 3) (USD $)
In Thousands, except Per Share data, unless otherwise specified
 3 Months Ended 9 Months Ended
Sep. 30, 2012
Sep. 30, 2011
Sep. 30, 2012
Sep. 30, 2011
Dec. 31, 2011
Revised unaudited condensed consolidated balance sheet amounts          
Deferred tax assets   $ 1,594   $ 1,594  
Total current assets 111,293 97,331 111,293 97,331 105,249
Deferred tax assets, non-current   8,540   8,540  
Total assets 204,282 185,297 204,282 185,297 188,920
Accrued expenses and other liabilities 10,949 13,145 10,949 13,145 12,759
Total current liabilities 34,101 33,187 34,101 33,187 31,112
Total liabilities 61,656 59,880 61,656 59,880 59,841
Accumulated deficit (35,947) (43,697) (35,947) (43,697) (41,842)
Total common stockholders' equity 142,429 125,241 142,429 125,241 128,882
Total stockholders' equity 142,626 125,417 142,626 125,417 129,079
Total liabilities and stockholders' equity 204,282 185,297 204,282 185,297 188,920
Revised unaudited condensed consolidated statements of operations amounts          
Income tax expense 1,101 1,194 2,468 1,985  
Net income 3,061 1,800 6,474 4,860  
Net income attributable to Boingo Wireless, Inc. 2,777 1,662 5,895 4,440  
Net income attributable to common stockholders 2,777 1,662 5,895 2,807  
Net income per share attributable to common stockholders-Basic (in dollars per share) $ 0.08 $ 0.05 $ 0.17 $ 0.13  
Net income per share attributable to common stockholders-Diluted (in dollars per share) $ 0.07 $ 0.05 $ 0.16 $ 0.11  
Revised unaudited condensed consolidated statements of cash flow amounts          
Net income 3,061 1,800 6,474 4,860  
Adjustments to reconcile net income including non-controlling interests to net cash provided by operating activities:          
Change in deferred income taxes     (420) (857)  
Change in accrued expenses and other liabilities     (3,552) 419  
As Previously Reported
          
Revised unaudited condensed consolidated balance sheet amounts          
Deferred tax assets   3,572   3,572  
Total current assets   99,309   99,309  
Deferred tax assets, non-current   6,697   6,697  
Total assets   185,432   185,432  
Accrued expenses and other liabilities   12,017   12,017  
Total current liabilities   32,059   32,059  
Total liabilities   58,752   58,752  
Accumulated deficit   (42,434)   (42,434)  
Total common stockholders' equity   126,504   126,504  
Total stockholders' equity   126,680   126,680  
Total liabilities and stockholders' equity   185,432   185,432  
Revised unaudited condensed consolidated statements of operations amounts          
Income tax expense       2,067  
Net income       4,778  
Net income attributable to Boingo Wireless, Inc.       4,358  
Net income attributable to common stockholders       2,725  
Net income per share attributable to common stockholders-Basic (in dollars per share)       $ 0.13  
Net income per share attributable to common stockholders-Diluted (in dollars per share)       $ 0.12  
Revised unaudited condensed consolidated statements of cash flow amounts          
Net income       4,778  
Adjustments to reconcile net income including non-controlling interests to net cash provided by operating activities:          
Change in accrued expenses and other liabilities       (356)  
Adjustment
          
Revised unaudited condensed consolidated balance sheet amounts          
Deferred tax assets   (1,978)   (1,978)  
Total current assets   (1,978)   (1,978)  
Deferred tax assets, non-current   1,843   1,843  
Total assets   (135)   (135)  
Accrued expenses and other liabilities   1,128   1,128  
Total current liabilities   1,128   1,128  
Total liabilities   1,128   1,128  
Accumulated deficit   (1,263)   (1,263)  
Total common stockholders' equity   (1,263)   (1,263)  
Total stockholders' equity   (1,263)   (1,263)  
Total liabilities and stockholders' equity   (135)   (135)  
Revised unaudited condensed consolidated statements of operations amounts          
Income tax expense       (82)  
Net income       82  
Net income attributable to Boingo Wireless, Inc.       82  
Net income attributable to common stockholders       82  
Net income per share attributable to common stockholders-Diluted (in dollars per share)       $ (0.01)  
Revised unaudited condensed consolidated statements of cash flow amounts          
Net income       82  
Adjustments to reconcile net income including non-controlling interests to net cash provided by operating activities:          
Change in deferred income taxes       (857)  
Change in accrued expenses and other liabilities       $ 775