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.

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

Subsequent Events - Additional Information (Detail) - Subsequent Event	Jan. 01, 2020	Dec. 31, 2019
Subsequent Event [Line Items]
Additional ownership interest acquired in joint venture		31.75%
Samuel Joint Venture
Subsequent Event [Line Items]
Percent of ownership interest held in unconsolidated affiliates	63.00%