Annual report pursuant to Section 13 and 15(d)

Summary of Significant Accounting Policies - Additional Information (Details)

v3.6.0.2
Summary of Significant Accounting Policies - Additional Information (Details)
 3 Months Ended 12 Months Ended
Sep. 30, 2016
USD ($)
Jun. 30, 2016
USD ($)
Mar. 31, 2016
USD ($)
Dec. 31, 2016
USD ($)
Product
Customer
Segment
Dec. 31, 2015
USD ($)
Customer
Dec. 31, 2014
USD ($)
Customer
Jan. 01, 2016
USD ($)
Dec. 31, 2013
USD ($)
Significant Accounting Policies [Line Items]                
Extended service contracts       The second deliverable is the lifetime warranty that provides for a functional oxygen concentrator for the remaining lifetime of the patient        
Accrual of product warranty liability       $ 3,480,000 $ 1,973,000 $ 1,115,000   $ 809,000
Number of deliverables when a product that includes lifetime warranty is sold | Product       2        
Standard product warranty description       The first deliverable is the oxygen concentrator equipment which comes with a standard warranty of three years and the additional service component is broken out from the product sales and deferred and recognized in years four and five to correspond with the service period.        
Estimation for sale of products       the Company estimates that 60% of its oxygen therapy patients will succumb to their disease within three years of initial diagnosis. Given the approximate mortality rate of 20% per year, the Company estimates on average all patients will succumb to their disease within five years of initial diagnosis.        
Standard warranty period offered       3 years        
Total warranty period offered       5 years        
Deferred capped rental revenue       $ 0 0      
Rental revenue earned       30-day period        
Accounts receivable, net       $ 30,828,000 19,872,000      
Unbilled Receivables       7,484,000 5,155,000      
Increase in provision for bad debt and revenue adjustments related to prior years       $ 3,589,000        
Percentage of Non-US revenue invoiced in Euros       70.60%        
Transfer of inventory to rental equipment       $ 1,454,000 1,449,000      
Salvage value of expenditures for additions, improvements and replacements       0        
Repairs and maintenance expense       2,464,000 2,520,000 1,628,000    
Depreciation and amortization       13,457,000 13,926,000 11,930,000    
Advertising costs       6,215,000 4,686,000 3,290,000    
Unrecognized tax benefits, interest or penalties recognized       $ 0 0 $ 0    
Number of operating segments | Segment       1        
Number of reportable segments | Segment       1        
ASU 2016-09                
Significant Accounting Policies [Line Items]                
Adjustment to deferred tax assets and accumulated deficit       $ 12,226,000     $ 12,226,000  
Adjustment to provision for income taxes $ 1,791,000 $ 2,350,000 $ 156,000          
Construction in Process and Computer Software or Development Cost                
Significant Accounting Policies [Line Items]                
Depreciation and amortization       0 0      
Other Noncurrent Assets                
Significant Accounting Policies [Line Items]                
Noncurrent inventories expected to be realized or consumed       314,000 0      
Medicare                
Significant Accounting Policies [Line Items]                
Accounts receivable, net       7,208,000 $ 7,441,000      
Customer Concentration Risk                
Significant Accounting Policies [Line Items]                
Accounts receivable, net       $ 9,791,000        
Sales Revenue, Net | Customer Concentration Risk                
Significant Accounting Policies [Line Items]                
Number of customers | Customer       1 0 0    
Concentration risk, percentage       12.40% 21.00% 26.50%    
Net Accounts Receivable | Customer Concentration Risk                
Significant Accounting Policies [Line Items]                
Number of customers | Customer       1 0      
Concentration risk, percentage       23.40% 37.40%      
Sales Revenue, Services, Net | Customer Concentration Risk                
Significant Accounting Policies [Line Items]                
Concentration risk, percentage       72.60% 73.70% 75.60%    
Raw materials | Supplier Concentration Risk | Vendor one                
Significant Accounting Policies [Line Items]                
Concentration risk, percentage       21.00% 21.60%      
Raw materials | Supplier Concentration Risk | Vendor two                
Significant Accounting Policies [Line Items]                
Concentration risk, percentage       15.60% 17.60%      
Raw materials | Supplier Concentration Risk | Vendor three                
Significant Accounting Policies [Line Items]                
Concentration risk, percentage       8.60% 9.30%      
Forward Contracts                
Significant Accounting Policies [Line Items]                
Accounts receivable, net       $ 15,000        
Payable         $ 24,000      
Service Contracts                
Significant Accounting Policies [Line Items]                
Extended service contracts       The Company offers extended service contracts on its Inogen One concentrator line for periods ranging from 12 to 24 months after the end of the standard warranty period.