Assets Held For Sale (Detail) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2012
Long Lived Assets Held-for-sale [Line Items]
Assets held for sale	$ 4,836
Land
Long Lived Assets Held-for-sale [Line Items]
Assets held for sale	3,092
Building
Long Lived Assets Held-for-sale [Line Items]
Assets held for sale	1,474
Furniture, Fixtures and Equipment
Long Lived Assets Held-for-sale [Line Items]
Assets held for sale	$ 270

Carrying amount as of the balance sheet date of investments in land and buildings held for sale, excluding real estate considered to be inventory of the entity.

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 944

-SubTopic 210

-Section S99

-Paragraph 1

-Subparagraph (SX 210.7-03.1(f))

-URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910

Name:	us-gaap_RealEstateHeldforsale
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant