Revenue - Additional Information (Details) $ in Millions |
9 Months Ended |
|---|---|
|
Sep. 30, 2019
USD ($)
| |
| Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items] | |
| Remaining performance obligation | $ 7.3 |
| Deferred revenue balance pertaining to prepaid contracts where associated receivable was recognized as it had not yet been collected | $ 0.4 |
| Minimum | |
| Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items] | |
| Payment terms | 15 days |
| Maximum | |
| Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items] | |
| Payment terms | 30 days |