Number of buildings sold.

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- Definition

Amount of write-down of assets recognized in the income statement. Includes, but is not limited to, losses from tangible assets, intangible assets and goodwill.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
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-SubTopic 10
-Section 45
-Paragraph 4
-URI http://asc.fasb.org/extlink&oid=109226348&loc=d3e2420-110228

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- Definition

Fair value portion of assets classified as held for sale.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 820
-SubTopic 10
-Section 50
-Paragraph 1
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-URI http://asc.fasb.org/extlink&oid=99377789&loc=d3e19190-110258

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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

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- Definition

The cash inflow from sale of buildings.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 12
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Assets Held for Sale - Additional Information (Details)	3 Months Ended		6 Months Ended
Assets Held for Sale - Additional Information (Details)	Jun. 30, 2019 USD ($)	Jun. 30, 2018 USD ($)	Jun. 30, 2019 USD ($) Building	Jun. 30, 2018 USD ($)	Dec. 31, 2018 USD ($)
Long Lived Assets Held For Sale [Line Items]
Impairment charges	$ 0	$ 308,000	$ 916,000	$ 308,000
Net proceeds from sale of building			$ 7,400,000
Number of buildings sold \| Building			2
Other Assets [Member]
Long Lived Assets Held For Sale [Line Items]
Building classified as held for sale	0		$ 0		$ 4,400,000
Level 2 [Member]
Long Lived Assets Held For Sale [Line Items]
Impairment charges	$ 0	$ 300,000	$ 900,000	$ 300,000