Annual report pursuant to Section 13 and 15(d)

Commitments and Contingencies (Detail Textuals 1)

v3.10.0.1
Commitments and Contingencies (Detail Textuals 1) - 12 months ended Dec. 31, 2018 - Other Commitments
£ in Millions, $ in Millions
GBP (£)
USD ($)
Commitments And Contingencies Disclosure [Line Items]    
Performance guarantee required to be maintained | $   $ 30.0
Security Guarantee | £ £ 30.5