Quarterly report pursuant to Section 13 or 15(d)

Leases - Narrative (Details)

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Leases - Narrative (Details)
$ in Millions
3 Months Ended
Mar. 31, 2019
USD ($)
Lessee, Lease, Description [Line Items]  
Remaining lease term 4 years
Lease renewal term 5 years
Weighted-average remaining lease term of operating leases 6 years
Weighted-average discount rate of operating leases (as a percent) 7.00%
Operating lease payments $ 0.5
Operating lease expense 0.6
Sublease income $ 0.3