Leases - Narrative (Details) - USD ($) $ in Thousands	1 Months Ended
	Jul. 31, 2018	Feb. 01, 2020	Jan. 31, 2020	Jan. 31, 2019
Lessee, Lease, Description [Line Items]
Operating lease commitments not yet commenced			$ 26,200
Property, plant and equipment, net			128,293	$ 75,832
Israel Leased Property
Lessee, Lease, Description [Line Items]
Operating lease term (in years)	10 years
Operating lease, termination period (in years)	5 years 6 months
Operating lease, renewal term (in years)	5 years
Property, plant and equipment, net			$ 2,500	$ 4,200
Subsequent Event
Lessee, Lease, Description [Line Items]
Operating lease commitments not yet commenced		$ 17,600
Minimum
Lessee, Lease, Description [Line Items]
Operating lease commitments not yet commenced terms (in years)			4 years
Maximum
Lessee, Lease, Description [Line Items]
Operating lease commitments not yet commenced terms (in years)			6 years