Subsequent Events (Details) - Water Solutions Holding - Subsequent Event	Oct. 10, 2018
Subsequent Event [Line Items]
Additional percentage of voting interests acquired	3.00%
Percentage of voting interest	98.00%

Detail information of subsequent event by type. User is expected to use existing line items from elsewhere in the taxonomy as the primary line items for this disclosure, which is further associated with dimension and member elements pertaining to a subsequent event.

No definition available.

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration