Segment Information - Assets (Details) - USD ($) $ in Thousands	Sep. 30, 2016	Dec. 31, 2015
Segment Reporting, Asset Reconciling Item [Line Items]
Total Identifiable Assets	$ 1,313,126	$ 1,319,935
Europe Segment
Segment Reporting, Asset Reconciling Item [Line Items]
Total Identifiable Assets	365,201	382,920
North America Segment
Segment Reporting, Asset Reconciling Item [Line Items]
Total Identifiable Assets	876,272	870,445
Corporate and Other Segment
Segment Reporting, Asset Reconciling Item [Line Items]
Total Identifiable Assets	$ 71,653	$ 66,570