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Basis of Presentation (Other Expense (Income), Net) (Details) - USD ($)
$ in Thousands
3 Months Ended
Mar. 31, 2017
Mar. 31, 2016
Accounting Policies [Abstract]    
Write-off of deposits and pre-acquisition costs $ 1,655 $ 3,041
Amortization of intangible assets 3,450 3,450
Interest income (833) (923)
Interest expense 137 174
Equity in earnings of unconsolidated entities (1,193) (170)
Miscellaneous, net 806 302
Other expense (income), net $ 4,022 $ 5,874