Quarterly report pursuant to Section 13 or 15(d)

Lease Commitments - Additional Information (Details)

v3.19.1
Lease Commitments - Additional Information (Details)
Mar. 31, 2019
Minimum  
Lessee, Lease, Description [Line Items]  
Operating lease term 5 years
Maximum  
Lessee, Lease, Description [Line Items]  
Operating lease term 50 years