XML 39 R29.htm IDEA: XBRL DOCUMENT
v2.4.0.8

SUBSEQUENT EVENTS -Additional Information (Details) (USD $) | 0 Months Ended
--- | ---
Mar. 11, 2013 | May 02, 2012 | Sep. 27, 2011 | Feb. 24, 2009
Subsequent Event [Line Items] |  |  |  |
Loss Contingencies Penalties | $ 150,000 | $ 250,000 | $ 22,000,000 | $ 125,000
Loss Contingencies Penalties Suspended | 100,000 |  |  |
Loss Contingencies Disgorgement | 300,000 |  | 6,600,000 |
Loss Contingencies Restitution |  | 2,900,000 |  |
Loss Contingency prejudgment Damages Awarded Value |  |  | $ 1,800,000 |

X
- Definition Amount of forced giving up of profits obtained by illegal or unethical acts + References No definition available. + Details
Name: | unl_lossContingenciesDisgorgement
Namespace Prefix: | unl_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Amount of penalty paid during the period + References No definition available. + Details
Name: | unl_LossContingenciesPenalties
Namespace Prefix: | unl_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Amount of penalty suspended during the period. + References No definition available. + Details
Name: | unl_LossContingenciesPenaltiesSuspended
Namespace Prefix: | unl_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Amount paid for restitution during the period + References No definition available. + Details
Name: | unl_LossContingenciesResitution
Namespace Prefix: | unl_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Amount of prejudgment damages awarded to the plaintiff in the legal matter + References No definition available. + Details
Name: | unl_LossContingencyPrejudgmentDamagesAwardedValue
Namespace Prefix: | unl_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Details
Name: | us-gaap_SubsequentEventLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration