Stock Repurchased During Period, Price Per Share

No definition available.

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Period Type:	duration

- Definition

Face amount or stated value per share of common stock.

+ References

+ Details

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Balance Type:	na
Period Type:	instant

- Definition

Percentage points added to the reference rate to compute the variable rate on the debt instrument.

+ References

No definition available.

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Balance Type:	na
Period Type:	duration

- Definition

Face (par) amount of debt instrument at time of issuance.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 835
-SubTopic 30
-Section 55
-Paragraph 8
-URI http://asc.fasb.org/extlink&oid=64930739&loc=d3e28878-108400

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Balance Type:	credit
Period Type:	instant

- 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.

+ Details

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- Definition

The percentage of ownership of common stock or equity participation in the investee accounted for under the equity method of accounting.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 323
-SubTopic 10
-Section 50
-Paragraph 3
-Subparagraph (a)(1)
-URI http://asc.fasb.org/extlink&oid=66011266&loc=d3e33918-111571

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Period Type:	instant

- Definition

Number of shares that have been repurchased during the period and have not been retired and are not held in treasury. Some state laws may govern the circumstances under which an entity may acquire its own stock and prescribe the accounting treatment therefore. This element is used when state law does not recognize treasury stock.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
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Balance Type:	na
Period Type:	duration

- Definition

Equity impact of the value of stock that has been repurchased during the period and has not been retired and is not held in treasury. Some state laws may mandate the circumstances under which an entity may acquire its own stock and prescribe the accounting treatment therefore. This element is used when state law does not recognize treasury stock.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
-SubTopic 10
-Section S99
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RECENT TRANSACTIONS (Details) - USD ($) $ / shares in Units, $ in Thousands			3 Months Ended
	Apr. 30, 2018	Feb. 23, 2018	Mar. 31, 2018	Dec. 31, 2017
Debt Instrument [Line Items]
Common stock repurchased during period (in shares)		475,920
Common stock, par value (in dollars per share)		$ 0.01	$ 0.01	$ 0.01
Common stock repurchased price per share (in dollars per share)		$ 120.33
Repurchase of common shares		$ 57,300	$ 57,267
Subsequent Event \| Wacker110 N \| Construction Loans
Debt Instrument [Line Items]
Loan amount	$ 494,500
Ownership interest in joint venture real estate	32.70%
London Interbank Offered Rate (LIBOR) \| Subsequent Event \| Wacker110 N \| Construction Loans
Debt Instrument [Line Items]
Interest rate margin (as a percent)	3.00%