Prepaid Expense, Related Party

No definition available.

Name:	lry_PrepaidExpenseRelatedParty
Namespace Prefix:	lry_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

Related Party Transaction, Due Date

+ References

No definition available.

+ Details

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Namespace Prefix:	lry_
Data Type:	us-types:dateStringItemType
Balance Type:	na
Period Type:	duration

- Definition

Related Party Transaction Interest Rate Range, Max

+ References

No definition available.

+ Details

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Namespace Prefix:	lry_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Related Party Transaction Interest Rate Range, Min

+ References

No definition available.

+ Details

Name:	lry_RelatedPartyTransactionInterestRateRangeMin
Namespace Prefix:	lry_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

For an unclassified balance sheet, amount of receivables arising from transactions with related parties.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 235

-SubTopic 10

-Section S99

-Paragraph 1

-Subparagraph (SX 210.4-08.(k)(1))

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-Name Accounting Standards Codification

-Topic 850

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-Section 50

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-Name Accounting Standards Codification

-Topic 944

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-Section S99

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-Subparagraph (SX 210.7-03.(a),3)

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-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 02

-Paragraph 3

-Subparagraph a

-Article 5

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-Name Regulation S-X (SX)

-Number 210

-Section 08

-Paragraph k

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-Name Regulation S-X (SX)

-Number 210

-Section 03

-Paragraph 3

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+ Details

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Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

For an unclassified balance sheet, amounts due from related parties including affiliates, employees, joint ventures, officers and stockholders, immediate families thereof, and pension funds.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 235

-SubTopic 10

-Section S99

-Paragraph 1

-Subparagraph (SX 210.4-08.(k)(1))

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-Topic 850

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-Name Regulation S-X (SX)

-Number 210

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-Number 210

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-Name Accounting Standards Codification

-Topic 944

-SubTopic 210

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-Paragraph 1

-Subparagraph (SX 210.7-03.3)

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-Topic 942

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-Paragraph 1

-Subparagraph (SX 210.9-03.10(3))

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+ Details

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

- Definition

Carrying amount as of the balance sheet date of obligations due all related parties.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 235

-SubTopic 10

-Section S99

-Paragraph 1

-Subparagraph (SX 210.4-08.(k)(1))

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-Name Accounting Standards Codification

-Topic 850

-SubTopic 10

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-Subparagraph (d)

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-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 08

-Paragraph k

-Subparagraph 1

-Article 4

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-Publisher FASB

-Name Accounting Standards Codification

-Topic 944

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-Paragraph 1

-Subparagraph (SX 210.7-03.17)

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-Subparagraph (SX 210.9-03.15(3),(4))

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-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 03

-Paragraph 15

-Subparagraph 3, 4

-Article 9

+ Details

Name:	us-gaap_DueToRelatedPartiesCurrentAndNoncurrent
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Revenue, comprised of base and incentive revenue derived from the management of joint ventures, managing third-party properties, or another entity's operations.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 225

-SubTopic 10

-Section S99

-Paragraph 2

-Subparagraph (SX 210.5-03.1(d))

-URI http://asc.fasb.org/extlink&oid=26872669&loc=d3e20235-122688

+ Details

Name:	us-gaap_ManagementFeesRevenue
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

The amount for notes payable (written promise to pay), due to related parties.

+ References

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

For an unclassified balance sheet, amounts due from parties associated with the reporting entity as evidenced by a written promise to pay.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 235

-SubTopic 10

-Section S99

-Paragraph 1

-Subparagraph (SX 210.4-08.(k)(1))

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-Name Regulation S-X (SX)

-Number 210

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-Paragraph k

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-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 03

-Paragraph 3

-Article 7

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-Topic 944

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-Paragraph 1

-Subparagraph (SX 210.7-03.3)

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-Name Accounting Standards Codification

-Glossary Related Parties

-URI http://asc.fasb.org/extlink&oid=16382449

+ Details

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Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Details

Name:	us-gaap_RelatedPartyTransactionLineItems
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Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

Identify the stated interest rate per the agreement, for example, leasing and debt arrangements between related parties.

+ References

No definition available.

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

Investments in Unconsolidated Joint Ventures - Related Party (Details) (Equity Method Investee [Member], USD $)	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Industrial Other [Member] \| Liberty Venture I, LP [Member]
Related Party Transaction [Line Items]
Management Fees Revenue	$ 578,000	$ 619,000	$ 614,000
Philadelphia [Member] \| Liberty Commerz 1701 JFK Boulevard, LP [Member]
Related Party Transaction [Line Items]
Management Fees Revenue	2,200,000	2,200,000	2,100,000
Philadelphia [Member] \| Liberty Commerz 1701 JFK Boulevard, LP [Member] \| Prepaid Expenses and Other Current Assets [Member]
Related Party Transaction [Line Items]
Accounts Receivable, Related Parties	323,000	175,000
Philadelphia [Member] \| Liberty Commerz 1701 JFK Boulevard, LP [Member] \| Investments in and Advance to Unconsolidated Joint Ventures [Member]
Related Party Transaction [Line Items]
Due to Related Parties	59,000
Due from Related Parties		266,000
Philadelphia [Member] \| Liberty Commerz 1701 JFK Boulevard, LP [Member] \| Accounts Receivable [Member]
Related Party Transaction [Line Items]
Accounts Receivable, Related Parties	469,000	204,000
United Kingdom [Member] \| Kings Hill Unit Trust [Member]
Related Party Transaction [Line Items]
Management Fees Revenue	237,000	333,000	427,000
Related Party Transaction Rate Range, Min	2.00%
Related Party Transaction Rate Range, Max	10.00%
Related Party Transaction, Due Date	2/1/2016
United Kingdom [Member] \| Kings Hill Unit Trust [Member] \| Prepaid Expenses and Other Current Assets [Member]
Related Party Transaction [Line Items]
Prepaid Expense, Related Party	47,000	46,000
United Kingdom [Member] \| Kings Hill Unit Trust [Member] \| Investments in and Advance to Unconsolidated Joint Ventures [Member]
Related Party Transaction [Line Items]
Notes Receivable, Related Parties	18,600,000	14,400,000
United Kingdom [Member] \| Kings Hill Unit Trust [Member] \| Accounts Receivable [Member]
Related Party Transaction [Line Items]
Accounts Receivable, Related Parties	133,000	109,000
United Kingdom [Member] \| Blythe Valley JV Sarl [Member]
Related Party Transaction [Line Items]
Management Fees Revenue	33,000	355,000	335,000
United Kingdom [Member] \| Blythe Valley JV Sarl [Member] \| Accounts Receivable [Member]
Related Party Transaction [Line Items]
Accounts Receivable, Related Parties		127,000
United Kingdom [Member] \| Cambridge Medipark Ltd [Member]
Related Party Transaction [Line Items]
Notes Payable, Related Parties	3,000,000
United Kingdom [Member] \| Cambridge Medipark Ltd [Member] \| Investments in and Advance to Unconsolidated Joint Ventures [Member]
Related Party Transaction [Line Items]
Notes Payable, Related Parties		3,000,000
Related Party Transaction, Due Date	0
Related Party Transaction, Rate	0.00%
Chicago Milwaukee [Member] \| Liberty Illinois, LP [Member]
Related Party Transaction [Line Items]
Management Fees Revenue	952,000	655,000	635,000
Other Segments [Member] \| Liberty Washington, LP [Member]
Related Party Transaction [Line Items]
Management Fees Revenue	4,900,000	4,500,000	4,000,000
Other Segments [Member] \| Liberty Washington, LP [Member] \| Prepaid Expenses and Other Current Assets [Member]
Related Party Transaction [Line Items]
Due from Related Parties	$ 523,000	$ 1,200,000