GENERAL - Estimated Useful Lives of Properties and Equipment (Detail)	12 Months Ended
Dec. 31, 2018
Buildings and improvements \| Minimum
Property, Plant and Equipment [Line Items]
Estimated useful life	10 years
Buildings and improvements \| Maximum
Property, Plant and Equipment [Line Items]
Estimated useful life	40 years
Furniture and equipment \| Minimum
Property, Plant and Equipment [Line Items]
Estimated useful life	3 years
Furniture and equipment \| Maximum
Property, Plant and Equipment [Line Items]
Estimated useful life	10 years
Leasehold improvements
Property, Plant and Equipment [Line Items]
Estimated useful life	over the shorter of the term of the lease or the life of the asset

Describes the periods of time over which an entity anticipates to receive utility from its property, plant and equipment (that is, the periods of time over which an entity allocates the initial cost of its property, plant and equipment).

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 360
-SubTopic 10
-Section 35
-Paragraph 4
-URI http://asc.fasb.org/extlink&oid=68071081&loc=d3e1205-110223

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 235
-SubTopic 10
-Section 50
-Paragraph 3
-URI http://asc.fasb.org/extlink&oid=84158767&loc=d3e18780-107790

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