Fair Value Measurements (Details) (USD $) In Thousands, unless otherwise specified	Jun. 30, 2012	Dec. 31, 2011
Carrying Amount
Fair Value Measurements
Long-term debt	$ 328,815	$ 363,300
Fair Value
Fair Value Measurements
Long-term debt	$ 264,901	$ 319,788

This element represents the long-term debt and capital lease obligations reported on the balance sheet at period end measured at fair value by the entity. This element is intended to be used in connection with the fair value disclosures required in the footnote disclosures to the financial statements.

No definition available.

Name:	lnet_LongTermDebtAndCapitalLeaseFairValueDisclosure
Namespace Prefix:	lnet_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant