Quarterly report pursuant to Section 13 or 15(d)

Leases - Narrative (Details)

v3.19.2
Leases - Narrative (Details)
$ in Millions
3 Months Ended 6 Months Ended
Jun. 30, 2019
USD ($)
Jun. 30, 2019
USD ($)
Lessee, Lease, Description [Line Items]    
Rent expense $ 1.5 $ 3.1
Operating lease cost $ 0.4 $ 0.4
Weighted average remaining lease term -- finance lease 7 years 7 years
Real Estate    
Lessee, Lease, Description [Line Items]    
Weighted average remaining lease term -- operating leases 7 years 6 months 11 days 7 years 6 months 11 days
Real Estate | Minimum    
Lessee, Lease, Description [Line Items]    
Weighted average remaining lease term -- operating leases 1 year 1 year
Real Estate | Maximum    
Lessee, Lease, Description [Line Items]    
Weighted average remaining lease term -- operating leases 11 years 11 years
Co-Location    
Lessee, Lease, Description [Line Items]    
Weighted average remaining lease term -- operating leases 5 years 8 months 12 days 5 years 8 months 12 days
Co-Location | Minimum    
Lessee, Lease, Description [Line Items]    
Weighted average remaining lease term -- operating leases 1 year 1 year
Co-Location | Maximum    
Lessee, Lease, Description [Line Items]    
Weighted average remaining lease term -- operating leases 10 years 10 years