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Leases - Paasheuvelweg, Amsterdam (Details)
$ in Thousands
1 Months Ended
May 31, 2017
item
Mar. 31, 2016
Mar. 31, 2017
USD ($)
Leases      
Future minimum lease payments     $ 39,682
Lease for Facility in Paasheuvelweg, Amsterdam, Netherlands      
Leases      
Lease term (in years)   16 years  
Renewal term (in years)   5 years  
Future minimum lease payments     $ 24,800
Lease for Facility in Paasheuvelweg, Amsterdam, Netherlands | Forecast      
Leases      
Number of facility sites consolidated into new site | item 3