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Property And Equipment - Sale Leaseback Transaction (Details) - Scotland
$ in Millions
1 Months Ended
Jan. 31, 2016
USD ($)
renewal_option
Sale Leaseback Transaction [Line Items]  
Proceeds from sale leaseback transaction $ 11.0
Term of lease agreement 15 years
Number of renewal options | renewal_option 2
Term of renewal option 5 years
Deferred gain on sale and leaseback transaction $ 7.6