Equity (Details) - USD ($) $ in Thousands	Sep. 30, 2018	Dec. 31, 2017
Accumulated Other Comprehensive Loss
Cumulative foreign currency translation adjustment	$ (921)	$ (6,955)
Unrealized gains (losses) on derivatives, net	(521)	(13,950)
Supplemental Executive Retirement plan minimum liability and other	(2,855)	(3,119)
Total other comprehensive income (loss)	$ (4,297)	$ (24,024)

Accumulated adjustment, net of tax, that results from the process of translating subsidiary financial statements and foreign equity investments into the reporting currency from the functional currency of the reporting entity, net of reclassification of realized foreign currency translation gains or losses.

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