Amount of other expenses associated with exit or disposal activities pursuant to an authorized plan. Excludes expenses associated with a discontinued operation or an asset retirement obligation.

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Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

Restructuring (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
Restructuring (Details) - USD ($) $ in Thousands	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Restructuring Costs [Abstract]
Total restructuring	$ 0		$ 0
Other costs	$ 0		$ 0
Corporate & Other [Member]
Restructuring Costs [Abstract]
Total restructuring		$ 7,400		$ 27,600