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Marketable Securities (Details) (SHG, USD $) | 3 Months Ended | 12 Months Ended
--- | --- | ---
Mar. 31, 2013 person | Mar. 31, 2012 | Dec. 31, 2012
SHG |  |  |
Marketable Securities |  |  |
Face rate of senior subordinated notes (as a percent) |  |  | 11.00%
Effective yield on senior subordinated notes (as a percent) |  |  | 11.10%
Interest income recognized from investment |  | $ 180,000 |
Investment in senior subordinated notes of related party |  | $ 6,500,000 |
Number of directors serving as chief executive officer of related entity | 1 |  |

X
- Definition This element represents sum of the carrying amounts as of the balance sheet date of current and noncurrent marketable securities with related party. + References No definition available. + Details
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Namespace Prefix: | ltc_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

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- Definition Represents the effective yield on a marketable security with a related party. + References No definition available. + Details
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Namespace Prefix: | ltc_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | duration

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- Definition Represents the face rate on a marketable security with a related party. + References No definition available. + Details
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Namespace Prefix: | ltc_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | duration

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- Definition Represents the number of directors serving as chief executive officer of an entity that qualifies as a related party. + References No definition available. + Details
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Namespace Prefix: | ltc_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | duration

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- Definition Income derived from investments in debt securities and on cash and cash equivalents the earnings of which reflect the time value of money or transactions in which the payments are for the use or forbearance of money. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 115 -Paragraph 14 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 03 -Paragraph 7 -Article 5 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 225 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03.7(b)) -URI http://asc.fasb.org/extlink&oid=6880815&loc=d3e20235-122688 + Details
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Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

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- Details
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Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration