Name:	lpi_AccumulatedDepletionandImpairmentOilandNaturalGasProperties
Namespace Prefix:	lpi_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

Employee-related costs incurred during the period and capitalized to oil and natural gas properties.

No definition available.

Name:	lpi_CapitalizedCostsOfOilAndGasPropertiesEmployeeRelatedCostsIncurred
Namespace Prefix:	lpi_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

Depletion computed on the basis of physical units, with oil and gas converted to a common unit of measure on the basis of their approximate relative energy content.

No definition available.

Name:	lpi_DepletionExpensePerPhysicalUnitOfProduction
Namespace Prefix:	lpi_
Data Type:	us-types:perUnitItemType
Balance Type:	na
Period Type:	duration

Discount Rate Full Cost Ceiling

No definition available.

Name:	lpi_DiscountRateFullCostCeiling
Namespace Prefix:	lpi_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

Full Cost Method of Accounting for Investments in Oil and Gas Properties, Unweighted Arithmetic Average First Of The Month Price Used In The Calculation Of The Full Cost Ceiling Value

No definition available.

Name:	lpi_FullCostMethodOfAccountingForInvestmentsInOilAndGasPropertiesUnweightedArithmeticAverageRate
Namespace Prefix:	lpi_
Data Type:	us-types:perUnitItemType
Balance Type:	na
Period Type:	duration

Full Cost Method of Accounting for Investments in Oil and Gas Properties, Unweighted Arithmetic Average Rate, Realized Prices

No definition available.

Name:	lpi_FullCostMethodOfAccountingForInvestmentsInOilAndGasPropertiesUnweightedArithmeticAverageRateRealizedPrices
Namespace Prefix:	lpi_
Data Type:	us-types:perUnitItemType
Balance Type:	na
Period Type:	duration

Unamortized Costs Capitalized Before Related Deferred Income Taxes Exceed Ceiling Limitations, Expense

No definition available.

Name:	lpi_UnamortizedCostsCapitalizedBeforeRelatedDeferredIncomeTaxesExceedCeilingLimitationsExpense
Namespace Prefix:	lpi_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

The sum of the capitalized costs incurred, as of the balance sheet date, of unproved properties excluded from amortization including acquisition costs, exploration costs, development costs, and production costs.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 932
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.4-10.(c)(7)(ii))
-URI http://asc.fasb.org/extlink&oid=82851474&loc=d3e511914-122862

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

Capitalized costs of proved properties incurred for any combination mineral interests acquisitions; wells and related equipment; support equipment and facilities; and uncompleted wells and equipment and other costs not previously disclosed within this table.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 932
-SubTopic 360
-URI http://asc.fasb.org/subtopic&trid=2145654

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 932
-SubTopic 235
-Section 50
-Paragraph 13
-URI http://asc.fasb.org/extlink&oid=68064819&loc=d3e61901-109447

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

The noncash expense charged against earnings to recognize the consumption of oil and gas reserves that are part of an entities' assets.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 28
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=109223946&loc=d3e3602-108585

Name:	us-gaap_DepletionOfOilAndGasProperties
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

Oil and gas properties, net of depletion, carried under the full cost method.

No definition available.

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

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.

No definition available.