| Schedule of Quarterly Financial Information | 
 
		
			
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						1st 
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						2nd 
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						3rd 
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						4th 
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						Quarter 
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						Quarter 
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						Quarter 
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						Quarter 
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						amounts in thousands 
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						2017:  
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						Revenue 
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						$ 
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						 3,140 
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						 3,073 
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						 3,430 
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						 3,449 
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						Operating income (loss) 
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						$ 
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						 (6,362) 
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						 (7,333) 
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						 (5,787) 
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						 (5,996) 
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						Net earnings (loss) attributable to Liberty Broadband Corporation Series A, Series B and Series C stockholders 
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						$ 
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						 (14,445) 
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						 (2,977) 
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						 (9,864) 
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						 2,060,953 
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						Basic earnings (loss) attributable to Liberty Broadband Corporation Series A, Series B and Series C stockholders per common share 
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						$ 
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						 (0.08) 
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						 (0.02) 
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						 (0.05) 
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						 11.37 
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						Diluted earnings (loss) attributable to Liberty Broadband Corporation Series A, Series B and Series C stockholders per common share 
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						$ 
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						 (0.08) 
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						 (0.02) 
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						 (0.05) 
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						 11.28 
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				 | 
			 
		  
		
			 
		 
		
			 
		 
		
			 
		 
		
			 
		 
		
			 
		 
		
			
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						1st 
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						2nd 
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						3rd 
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						4th 
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						Quarter 
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						Quarter 
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						Quarter 
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						Quarter 
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						amounts in thousands 
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						2016: 
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						Revenue 
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						$ 
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						 3,831 
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						 2,966 
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						 20,616 
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						 3,173 
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						Operating income (loss) 
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						$ 
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						 (9,340) 
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						 (10,737) 
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						 6,624 
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						 (7,707) 
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						Net earnings (loss) attributable to Liberty Broadband Corporation Series A, Series B and Series C stockholders 
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						$ 
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						 (22,241) 
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						 890,154 
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						 3,789 
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						 45,601 
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						Basic earnings (loss) attributable to Liberty Broadband Corporation Series A, Series B and Series C stockholders per common share 
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						$ 
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						 (0.22) 
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						 6.31 
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						 0.02 
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						 0.25 
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						Diluted earnings (loss) attributable to Liberty Broadband Corporation Series A, Series B and Series C stockholders per common share 
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				 | 
				
					 
						$ 
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						 (0.22) 
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						 6.28 
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						 0.02 
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						 0.25 
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