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Stock-Based Compensation - Additional Information (Detail) - USD ($)
$ / shares in Units, $ in Millions
1 Months Ended 3 Months Ended 12 Months Ended
Dec. 31, 2015
Mar. 31, 2015
Mar. 31, 2016
Dec. 31, 2015
Dec. 31, 2014
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Unrecognized compensation expense $ 3.9     $ 3.9  
Compensation expense related to outstanding Incentive Units, recognized over a weighted-average period       2 years 1 month 6 days  
Stock Appreciation Rights (SARs) [Member]          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Stock compensation award, method of measurement     Black-Scholes option valuation model Black-Scholes option valuation model  
Shares reserved for issuance 53,621,143   53,621,143 53,621,143  
Incentive Units Time Based Awards [Member]          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Stock compensation award, method of measurement     Monte Carlo simulation valuation approach    
Vivint Wireless [Member] | Stock Appreciation Rights Time Based Awards [Member]          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Stock appreciation rights ("SARs"), vesting period 5 years   5 years    
Vivint Wireless [Member] | Stock Appreciation Rights (SARs) [Member]          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Incentive units issued as share-based compensation awards, outstanding 81,000   17,500 81,000  
Expected volatility     65.00% 65.00%  
Unrecognized compensation expense $ 0.2     $ 0.2  
Compensation expense related to outstanding Incentive Units, recognized over a weighted-average period       2 years 5 months 12 days  
Weighted average grant date fair value of the outstanding units $ 6.02     $ 6.02 $ 2.30
Expected dividends     0.00% 0.00%  
Vivint Wireless [Member] | Stock Appreciation Rights (SARs) [Member] | Minimum [Member]          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Expected exercise term     5 years 11 months 19 days 5 years 11 months 19 days  
Risk-free rate     1.73% 1.73%  
Vivint Wireless [Member] | Stock Appreciation Rights (SARs) [Member] | Maximum [Member]          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Expected exercise term     6 years 5 months 16 days 6 years 5 months 16 days  
Risk-free rate     1.81% 1.81%  
Vivint [Member] | Stock Appreciation Rights Time Based Awards [Member]          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Stock appreciation rights ("SARs"), vesting period       5 years  
Vivint [Member] | Stock Appreciation Rights Time Based Awards [Member] | Share-based Compensation Award, Tranche One [Member]          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Stock compensation award, vesting percentage     33.33% 33.33%  
Vivint [Member] | Stock Appreciation Rights (SARs) [Member]          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Incentive units issued as share-based compensation awards, outstanding 18,664,137   17,558,111 18,664,137  
Share-based compensation awards, description     SARs are subject to time-based and performance-based vesting conditions, with one-third subject to ratable time-based vesting over a five year period and two-thirds subject to the achievement of certain investment return thresholds by 313. SARs are subject to time-based and performance-based vesting conditions, with one-third subject to ratable time-based vesting over a five year period and two-thirds subject to the achievement of certain investment return thresholds by 313.  
Unrecognized compensation expense $ 1.1     $ 1.1  
Compensation expense related to outstanding Incentive Units, recognized over a weighted-average period       3 years 2 months 12 days  
Weighted average grant date fair value of the outstanding units $ 0.25     $ 0.25 0.44
Expected dividends     0.00% 0.00%  
Vivint [Member] | Stock Appreciation Rights (SARs) [Member] | Minimum [Member]          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Expected volatility     65.00% 65.00%  
Expected exercise term     1 year 10 months 28 days 1 year 10 months 28 days  
Risk-free rate     0.52% 0.52%  
Vivint [Member] | Stock Appreciation Rights (SARs) [Member] | Maximum [Member]          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Expected volatility     70.00% 70.00%  
Expected exercise term     6 years 6 months 6 years 6 months  
Risk-free rate     2.07% 2.07%  
Vivint [Member] | Stock Appreciation Rights Performance Based Awards [Member] | Share-based Compensation Award, Tranche One [Member]          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Stock compensation award, vesting percentage     66.67% 66.67%  
313 Acquisition LLC [Member] | Incentive Units [Member]          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Weighted average grant date fair value of the outstanding units $ 0.38     $ 0.38 $ 0.33
313 Acquisition LLC [Member] | Incentive Units [Member] | Minimum [Member]          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Expected volatility     65.00% 65.00%  
Expected exercise term     5 years 5 years  
Risk-free rate     1.88% 1.88%  
313 Acquisition LLC [Member] | Incentive Units [Member] | Maximum [Member]          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Expected exercise term     6 years 6 years  
Risk-free rate     2.03% 2.03%  
313 Acquisition LLC [Member] | Incentive Units Time Based Awards [Member]          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Share-based compensation awards, description     The Incentive Units are subject to time-based and performance-based vesting conditions, with one-third subject to ratable time-based vesting over a five year period and two-thirds subject to the achievement of certain investment return thresholds by The Blackstone Group, L.P. and its affiliates The Incentive Units are subject to time-based and performance-based vesting conditions, with one-third subject to ratable time-based vesting over a five year period and two-thirds subject to the achievement of certain investment return thresholds by The Blackstone Group, L.P. and its affiliates  
Stock appreciation rights ("SARs"), vesting period     5 years 5 years  
Stock compensation award, method of measurement       Monte Carlo simulation valuation approach  
313 Acquisition LLC [Member] | Incentive Units Time Based Awards [Member] | Share-based Compensation Award, Tranche One [Member]          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Stock compensation award, vesting percentage     33.33% 3333.00%  
313 Acquisition LLC [Member] | Incentive Units Time Based Awards [Member] | Senior Management and Board [Member]          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Incentive units issued as share-based compensation awards     73,962,836 73,962,836  
313 Acquisition LLC [Member] | Incentive Units Time Based Awards [Member] | Chief Executive Officer and President [Member]          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Incentive units issued as share-based compensation awards   4,315,106      
Incentive units issued as share-based compensation awards, outstanding 42,169,456   42,169,456 42,169,456  
313 Acquisition LLC [Member] | Incentive Units Performance Based Awards [Member] | Share-based Compensation Award, Tranche One [Member]          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Stock compensation award, vesting percentage     66.67% 6667.00%