Leases (Details)	3 Months Ended
	Mar. 31, 2018 USD ($)	Mar. 31, 2019 lease_renew_option operating_lease
Lessee, Lease, Description [Line Items]
Lessee, number of operating leases, noncurrent | operating_lease		39
Lessee, operating lease, number of options to renew | lease_renew_option		1
Operating lease rent expense | $	$ 1,229
Minimum
Lessee, Lease, Description [Line Items]
Lessee, operating lease, term of contract		1 year
Lessee, operating lease, renewal term		20 years
Maximum
Lessee, Lease, Description [Line Items]
Lessee, operating lease, term of contract		37 years