Noncontrolling Interest Noncontrolling Interest- Additional Information (Details) - USD ($)
$ in Thousands
 1 Months Ended 3 Months Ended 9 Months Ended 1080 Months Ended
Jun. 30, 2016
Sep. 30, 2016
Sep. 30, 2016
Sep. 30, 2015
May 11, 2106
Dec. 31, 2015
Noncontrolling Interest [Line Items]            
Cash distributions funded by debt     $ 58,644      
Distributions paid     $ 58,644 $ 58,644    
ACI            
Noncontrolling Interest [Line Items]            
Cash distributions funded by debt   $ 60,100        
Distributions paid   18,400        
Liberty            
Noncontrolling Interest [Line Items]            
Cash distributions funded by debt   35,300        
Distributions paid   $ 5,300        
% Ownership Primary | ACI            
Noncontrolling Interest [Line Items]            
% Ownership [1]   69.40% 69.40%     69.40%
% Ownership Primary | Liberty            
Noncontrolling Interest [Line Items]            
% Ownership [1]   88.60% 88.60%     96.20%
% Ownership Fully Diluted | ACI            
Noncontrolling Interest [Line Items]            
% Ownership [1]   69.30% 69.30%     69.30%
% Ownership Fully Diluted | Liberty            
Noncontrolling Interest [Line Items]            
% Ownership [1]   84.70% 84.70%     84.60%
Term Loan Facility | ACI            
Noncontrolling Interest [Line Items]            
Debt instrument   $ 61,000 $ 61,000      
Term Loan Facility | Liberty            
Noncontrolling Interest [Line Items]            
Debt instrument   38,000 38,000      
Revolving Credit Facility | Liberty            
Noncontrolling Interest [Line Items]            
Debt instrument   $ 5,000 5,000      
Employee Stock Option | Liberty            
Noncontrolling Interest [Line Items]            
Options, exercises in period (shares)   75,095        
Allocated compensation expense   $ 300        
Management | Liberty            
Noncontrolling Interest [Line Items]            
Amount of shares purchased from noncontrolling shareholders   $ 1,500 $ 1,500      
% Ownership   11.40% 11.40%      
Ergobaby            
Noncontrolling Interest [Line Items]            
Treasury Stock, Shares, Acquired 77,425          
Payments for Repurchase of Common Stock $ 15,400          
Ergobaby | % Ownership Primary            
Noncontrolling Interest [Line Items]            
% Ownership   77.90% 77.90%      
Noncontrolling Interest, Ownership Percentage by Parent [1]   83.90% 83.90%      
Ergobaby | % Ownership Fully Diluted            
Noncontrolling Interest [Line Items]            
% Ownership   71.20% 71.20%      
Noncontrolling Interest, Ownership Percentage by Parent [1]   76.20% 76.20%      
New Baby Tula, LLC | Ergobaby            
Noncontrolling Interest [Line Items]            
Consideration transferred, equity interests issued         $ 8,200  
[1] The principal difference between primary and diluted percentages of our operating segments is due to stock option issuances of operating segment stock to management of the respective businesses.