XML 62 R32.htm IDEA: XBRL DOCUMENT
v3.5.0.2

Description of Business and Summary of Significant Accounting Policies (Policies) | 12 Months Ended
--- | ---
May 31, 2016
Description of Business and Summary of Significant Accounting Policies [Abstract] |
Description of Business | DESCRIPTION OF BUSINESS. FedEx Corporation (“FedEx”) provides a broad portfolio of transportation, e-commerce and business services through companies com peting collectively, operating independently and managed collaboratively, under the respected FedEx brand. Our primary operating companies are Federal Express Corporation (“FedEx Express”), the world's largest express transportation company; TNT Express B.V., formerly TNT Express N.V. (“TNT Express”), an international express, small-package ground delivery and freight transportation company that was acquired near the end of our 2016 fourth quarter; FedEx Ground Package System, Inc. (“FedEx Ground”), a leading North American provider of small-package ground delivery services; and FedEx Freight, Inc. (“FedEx Freight”), a leading U.S. p rovider of less-than-truckload (“LTL”) freight services. These companies represent our major service lines and, along with FedEx Corporate Services, Inc. (“FedEx Services”), form the core of our reportable segments. Our FedEx Services segment provides sales, marketing, information technology, communications, customer service, technical support, billing and collection services, and certain back-office functions that support our transportation segments. In addition, the FedEx Services segment provides customers with retail access to FedEx Express and FedEx Ground shipping services through FedEx Office and Print Services, Inc. (“FedEx Office”)
Fiscal Years | FISCAL YEARS. Except as otherwise specified, references to years indicate our fiscal year ended May 31, 2016 or ended May 31 of the year referenced.
Reclassifications | RECLASSIFICATIONS. Certain r eclassifications have been made to the prior years' consolidated financial statements to conform to the current year's presentation.
Principles of Consolidation | PRINCIPLES OF CONSOLIDATION. The consolidated financial statements include the accounts of FedEx and its subsidiaries, substantially all of which are wholly owned. All significant intercompany accounts and transactions have been eliminated in consolidation. We are not the primary beneficiary of, nor do we have a controlling financial interest in, any variable interest entity. Accordingly, we have not consolidated any variable interest entity.
Revenue Recognition | REVENUE RECOGNITION. We recognize revenue upon delivery of shipments for our transportation businesses and upon completion of services for our business services, logistics and trade services businesses. T ransportation services are provided with the use of employees and independent contractors. FedEx is the prin cipal to the transaction for most of these services and revenue from these transactions is recognized on a gross basis. Costs associated with independent contractor settlements are recognized as incurred and included in the caption “Purchased transportation” in the accompanying consolidated statements of income. For shipments in transit, revenue is recorded based on the percentage of service completed at the balance sheet date. Estimates for future billing adjustments to revenue and accounts receivable are recognized at the time of shipment for money-back service guarantees and billing corrections. Delivery costs are accrued as incurred. Our contract logistics, global trade services and certain transportation businesses engage in some transactions wherein they act as agents. Revenue from these transactions is recorded on a net basis. Net revenue includes billings to customers less third-party charges, including transportation or handling costs, fees, commis sions and taxes and duties. Certain of our revenue-producing transactions are subject to taxes, such as sales tax, assessed by governmental authorities. We present these revenues net of tax.
Credit Risk | CREDIT RISK. We routinely grant credit to many of our customers for transportation and business services without collateral. The risk of credit loss in our trade receivables is substantially mitigated by our credit evaluation process, short collection terms and sales to a large number of customers, as well as the low revenue per transaction for most of our services. Allowances for potential credit losses are determined based on historical experience and the impact of current economic factors on the composition of accounts receivable. Historically, credit losses have been within management's expectations.
Advertising | ADVERTISING. Advertising and promotion costs are expensed as incurred and are classified in other operating expenses. Advertising and promotion expenses were $417 million in 2016, $4 0 3 million in 2015 and $4 07 million in 2014.
Cash Equivalents | CASH EQUIVALENTS. Cash in excess of current operating requirements is invested in short-term, interest-bearing instruments with maturities of three months or less at the date of purchase and is stated at cost, which approximates market value.
Spare Parts, Supplies And Fuel | SPARE PARTS, SUPPLIES AND FUEL. Spare parts (principally aircraft-related) are reported at weighted-average cost. Allowances for obsolescence are provided for spare parts currently identified as excess or obsolete as well as expected to be on hand at the date the aircraft are retired from service. These allowances are provided over the estimated useful life of the related aircraft and engines. The majority of our supplies and ou r fuel are reported at weighted-average cost.
Property And Equipment | PROPERTY AND EQUIPMENT. Expenditures fo r major additions, improvements and flig ht equipment modifications are capitalized when such costs are determined to extend the useful life of the asset or are part of the cost of acquiring the asset. Expenditures for equipment overhaul costs of engines or airframes prior to their operational use are capitalized as part of the cost of such assets as they are co sts required to ready the asset for its intended use. M aintenance and repairs costs are charged to expense as incurred, except for certain aircraft engine maintenance costs incurred under third-party s ervice agreements. These agreements result ed in costs being expensed based on cycles or hours flown and are subject to annual escalation. These service contracts transfer risk to third party service providers and generally fix the amount we pay for maintenance to the service provider as a rate per cycle or flight hour, in exchange for maintenance and repairs under a predefined maintenance program. We capitalize certain direct internal and external costs associated with the development of internal-use software. Gains and losses on sales of property used in operations are classified within operating expenses and historically have been nomina l. For financial reporting purposes, we record depreciation and amortization of property and equipment on a straight-line basis over the asset's service life or related lease term, if shorter. For income tax purposes, depreciation is computed using accelerated methods when applicable. The depreciable lives and net book value of our property and equipment are as follows (dollars in millions):
|  |  | Net Book Value at May 31,
| Range |  | 2016 |  | 2015
Wide-body aircraft and related equipment | 15 to 30 years |  | $ | 8,356 |  | $ | 7,548
Narrow-body and feeder aircraft and related equipment | 5 to 18 years |  |  | 3,180 |  |  | 2,943
Package handling and ground support equipment | 3 to 30 years |  |  | 3,249 |  |  | 2,410
Vehicles | 3 to 15 years |  |  | 3,084 |  |  | 2,717
Computer and electronic equipment | 2 to 10 years |  |  | 1,051 |  |  | 866
Facilities and other | 2 to 40 years |  |  | 5,364 |  |  | 4,391
The fair value of TNT Express property and equipment included in the table above at May 31, 2016 was $1.1 b illion. Given the timing of the TNT Express acquisition, this value is preliminary and likely to change during the purchase price allocation measurement period, which ends no later than the fourth quarter of 2017. Substantially all property and equipment have no material residual values. The majority of aircraft costs are depreciated on a straight-line basis over 15 to 30 years. We periodically evaluate the estimated service lives and residual values used to depreciate our property and equipment. In May 2015, we adjust ed the depreciable lives of 23 aircraft and 57 engines. These changes will not have a material impact on near-term depreciation expense. In May 2013, FedEx Express made the decision to accelerate the retirement of 76 aircraft and related engines to aid in our fleet modernization and improve our global network. In 2012, we shortened the depreciable lives for 54 aircraft and related engines to accelerate the retirement of these aircraft. As a result of these accelerated retirements, we incurred an additional $74 million in year-over-year accelerated depreciation expense in 2014. Depreciation and amortization expense, excluding gains and losses on sales of property and equipm ent used in operations, was $2.6 billion in 201 6, 2015 and 201 4. Depreciation and amortization expense includes amortization of assets under capital lease.
Capitalized Interest | CAPITALIZED INTEREST. Interest on funds used to finance the acquisition and modification of aircraft, including purchase deposits, construction of certain facilities, and development of certain software up to the date the asset is ready for its intended use is capitalized and included in the cost of the asset if the asset is actively under construction. Capitalized interest was $42 million in 2016, $37 million in 2015 and $29 million in 2014.
Impairment of Long-Lived Assets | IMPAIRMENT OF LONG-LIVED ASSETS. Lo ng-lived assets are reviewed for impairment when circumstances indicate the carrying value of an asset may not be recoverable. For assets that are to be held and used, an impairment is recognized when the estimated undiscounted cash flows associated with the asset or group of assets is less than their carrying value. If impairment exists, an adjustment is made to write the asset down to its fair value, and a loss is recorded as the difference between the carrying value and fair value. Fair values are determined based on quoted market values, discounted cash flows or internal and external appraisals, as applicable. Assets to be disposed of are carried at the lower of carrying value or estimated net realizable value. We operate integrated transportation networks, and accordingly, cash flows for most of our operating assets to be held and used are assessed at a network level, not at an individual asset level, for our analysis of impairment. In the normal management of our aircraft fleet, we routinely idle aircraft and engines temporarily due to maintenance cycles and adjustments of our network capacity to match seasonality and overall customer demand levels. Temporarily idled assets are classified as available-for-use, and we continue to record depreciation expense associated with these assets. These temporarily idled assets are assessed for impairment on a quarterly basis. The criteria for determining whether an asset has been permanently removed from service (and, as a result, is potentially impaired) include, but are not limited to, our global economic outlook and the impact of our outlook on our current and projected volume levels, including capacity needs during our peak shipping seasons; the introduction of new fleet types or decisions to permanently retire an aircraft fleet from operations; and changes to planned service expansion activities. At May 31, 201 6, we had four aircraft temporarily idled. These aircraft ha ve been idled for less than one year and are expected to return to revenue service. In May 2015, we retire d from service seven Boeing MD11 aircraft and 12 related engines, four Airbus A310-300 aircraft and three related engines, three Airbus A300-600 aircraft and three related engines and one Boeing MD10-10 aircraft and three related engines, and related parts. As a consequence, impairment and related charge s of $2 7 6 million ($175 million, net of tax, or $0.61 per diluted share) w ere recorded in the fourth quarter of 2015. Of this amount, $246 million was non-cash. The decision to permanently retire these aircraft and engines aligns with Fed Ex Express's plans to rationalize capacity and modernize its aircraft fleet to more effectively serve its customers.
Goodwill and Intangible | GOODWILL. Goodwill is recognized for the excess of the purchase price over the fair value of tangible and identifiable intangible net assets of businesses acquired. Several factors give rise to goodwill in our acquisitions, such as the expected benefit from synergies of the combination and the existing workforce of the acquired business. Goodwill is reviewed at least annually for impairment. In our evaluation of goodwill impairment, we perform a qualitative assessment to determine if it is more likely than not that the fair value of a reporting unit is less than its carrying amount. If the qualitative assessment is not conclusive, we proceed to a two-step process to test goodwill for impairment, including comparing the fair value of the reporting unit to its carrying value (including attributable goodwill). Fair value for our reporting units is determined using an income or market approach incorporating market participant considerations and management's assumptions on revenue growth rates, operating margins, discount rates and expected capital expenditures. Fair value determinations may include both internal and third-party valuations. Unless circumstances otherwise dictate, we perform our annual impairment testing in the fourth quarter. INTANGIBLE ASSETS. Intangible assets primarily include customer relationships, technology assets and trademarks acquired in business combinations. Intangible assets are amortized over periods ranging from 3 to 15 years, either on a straight-line basis or on a basis consistent with the pattern in which the economic benefits are realized.
Pension and Postretirement Healthcare Plans | PENSION AND POSTRETIREMENT HEALTHCARE PLANS. Our defined benefit plans are measured using actuarial techniques that reflect management's assumptions for discount rate, investment returns on plan assets, salary increases, expected retirement, mortality, employee turnover and future increases in healthcare costs. We determine the discount rate (which is required to be the rate at which the projected benefit obligation could be effectively settled as of the measurement date) with the assistance of actuaries, who calculate the yield on a theoretical portfolio of high-grade corporate bonds (rated Aa or better) with cash flows that are designed to match our expected benefit payments in future years. W e use the fair value of plan assets to calculate the expected return on plan assets (“EROA”) for interim and segment reporting purposes. Our EROA is a judgmental matter which is reviewed on an annual basis and revised as appropriate. The accounting guidance related to employers' accounting for defined benefit pension and other postretirement plans requires recognition in the balance sheet of the funded status of defined benefit pension and other postretirement benefit plans. We use “mark-to-market” or MTM accounting and immediately recognize changes in the fair value of plan assets and actuarial gains or losses in our operating results annually in the fourth quarter each year. The annual MTM adjustment is recognized at the corporate level and does not impact segment results. The remaining components of pension and postretirement healthcare expense, primarily service and interest costs and the EROA, are recorded on a quarterly basis.
Income Taxes | INCOME TAXES. Deferred income taxes are provided for the tax effect of temporary differences between the tax basis of assets and liabilities and their reported amounts in the financial statements. The liability method is used to account for income taxes, which requires deferred taxes to be recorded at the statutory rate expected to be in effect when the taxes are paid. We recognize liabilities for uncertain income tax positions based on a two-step process. The first step is to evaluate the tax position for recognition by determining if the weight of available evidence indicates that it is more likely than not that the position will be sustained on audit, including resolution of related appeals or litigation processes, if any. The second step requires us to estimate and measure the tax benefit as the largest amount that is more than 50% likely to be realized upon ultimate settlement. It is inherently difficult and subjective to estimate such amounts, as we must determine the probability of various possible outcomes. We reevaluate these uncertain tax positions on a quarterly basis or when new information becomes available to management. These reevaluations are based on factors including, but not limited to, changes in facts or circumstances, changes in tax law, successfully settled issues under audit and new audit activity. Such a change in recognition or measurement could result in the recognition of a tax benefit or an increase to the related provision. We classify interest related to income tax liabilities as interest expense, and if applicable, penalties are recognized as a component of income tax expense. The income tax liabilities and accrued interest and penalties that are due within one year of the balance sheet date are presented as current liabilities. The noncurrent portion of our income tax liabilities and accrued interest and penalties are recorded in the caption “Other liabilities” in the accompanying consolidated balance sheets.
Self-Insurance Accruals | SELF-INSURANCE ACCRUALS. We are self-insured for costs associated with workers' compensation claims, vehicle accidents and general business liabilities, and benefits paid under employee healthcare and d isability programs. Accruals are primarily based on the actuarially estimated cost of claims, which includes incurred-but-not-reported claims. Current workers' compensation claims, vehicle and general liability, employee healthcare claims and long-term disability are included in accrued expenses. We self-insure up to certain limits that vary by operating company and type of risk. Periodically, we evaluate the level of insurance coverage and adjust insurance levels based on risk tolerance and premium expense.
Leases | LEASES. We lease certain aircraft, facilities, equipment and vehicles under capital and operating leases. The commencement date of all leases is the earlier of the date we become legally obligated to make rent payments or the date we may exercise control over the use of the property. In addition to minimum rental payments, certain leases provide for contingent rentals based on equipment usage, principally related to aircraft leases at FedEx Express and copier usage at FedEx Office. Rent expense associated with contingent rentals is recorded as incurred. Certain of our leases contain fluctuating or escalating payments and rent holiday periods. The related rent expense is recorded on a straight-line basis over the lease term. The cumulative excess of rent payments over rent expense is accounted for as a deferred lease asset and recorded in “Other assets” in the accompanying consolidated balance sheets. The cumulative excess of rent expense over rent payments is accounted for as a deferred lease obligation. Leasehold improvements associated with assets utilized under capital or operating leases are amortized over the shorter of the asset's useful life or the lease term.
Deferred Gains | DEFERRED GAINS. Gains on the sale and leaseback of aircraft and other property and equipment are deferred and amortized ratably over the life of the lease as a reduction of rent expense. Substantially all of these deferred gains are related to aircraft transactions.
Derivative Financial Instruments | DERIVATIVE FINANCIAL INSTRUMENTS. Our recently acquired TNT Express segment maintains a risk management strategy that includes the use of derivative instruments to reduce the effects of volatility in foreign currency exchange exposure on operating results and cash flows. In accordance with our risk management policies, we do not hold or issue derivative instruments for trading or speculative p urposes. We account for derivative instruments under the provisions of the accounting guidance related to derivatives and hedging, which requires all derivative instruments to be recognized in the financial statements and measured at fair value, regardless of the purpose or intent for holding them. Derivatives are recognized in our consolidated balance sheets at their fair values. When we become a party to a derivative instrument and intend to apply hedge accounting, we formally document the hedge relationship and the risk management objective for undertaking the hedge, which includes designating the instrument for financial reporting purposes as a fair value hedge, a cash flow hedge, or a net investment hedge. If a derivative is designated as a cash flow or net investment hedge, changes in its fair value are considered to be effective and are recorded in accumulated other comprehensive income until the hedged item is recorded in income. Any portion of a change in the fair value of a derivative that is considered to be ineffective, along with the change in fair value of any derivatives not designated in a hedging relationship, is immediately recorded in the income statement. For derivative instruments designated as hedg e s, we assess, both at hedge inception and on an ongoing basis, whether the derivatives that are used in hedging transactions are highly effective in offsetting changes in fair values or cash flows of hedged items. In addition, when we determine that a derivative is not highly effective as a hedge, hedge accounting is discontinued. When a hedging instrument expires or is sold, or when the hedge no longer meets the criteria for hedge accounting, any cumulative gains or losses existing in equity at that time, remain in equity until the forecasted transaction is ultimately recognized in the income statement. When a forecasted transaction is no longer expected to occur, the cumulative gains or losses that were reported in equity are immediately transferred to the income statement. The financial statement impact of d erivative transactions w ere immaterial for the year ended May 31, 2016 and as such, additional disclosures have been excluded from this report.
Foreign Currency Translation | FOREIGN CURRENCY TRANSLATION. Translation gains and losses of foreign operations that use local currencies as the functional currency are accumulated and reported, net of applicable deferred income taxes, as a component of accumulated other comprehensive income within common stockholders' investment. Transaction gains and losses that arise from exchange rate fluctuations on transactions denominated in a currency other than the local currency are included in the caption “Other, net” in the accompanying consolidated statements of income and w ere immaterial for each period presented.
Employees Under Collective Bargaining Arrangements | EMPLOYEES UNDER COLLECTIVE BARGAINING ARRANGEMENTS. The pilots of Fed Ex Express, which represent a small number of FedEx Express's total employees, are employed under a collective bargaining agreement that took effect on November 2, 2015. This collective bargaining agreement is scheduled to become amendable in November 2021, after a six-year term. In addition to our pilots at FedEx Express, GENCO Distribution System, Inc. (“GENCO”) has a small number of employees who are members of unions, and certain non-U.S. employees are unionized.
Stock-Based Compensation | STOCK-BASED COMPENSATION. We recognize compensation expense for stock-based awards under the provisions of the accounting guidance related to share-based payments. This guidance requires recognition of compensation expense for stock-based awards using a fair value method. We issue new shares or repurchase shares on the open market to cover employee s tock option exercises and restricted stock grants.
Treasury Shares | TREASURY SHARES. In January 2016, the stock repurchase authorization announced in September 2014 for 15 million shares was completed. On January 26, 2016, our Board of Directors approved a new share repurchase program of up to 25 million shares. During 2016, we repurchased 18.2 million shares of FedEx common stock at an average price of $149.35 per share for a total of $2.7 billion. As of May 31, 201 6, 19 million shares remained under the share repurchase authorization. Shares under the current repurchase program may be repurchased from time to time in the open market or in privately negotiated transactions. The timing and volume of repurchases are at the discretion of management, based on the capital needs of the business, the market price of FedEx common stock and general market conditions. No time limit was set for the completion of the program, and the program may be suspended or discontinued at any time. In 2015, we repurchased 8.1 million shares of FedEx common stock at an average price of $154.03 per share for a total of $1.3 b illion. In 2014, we repurchased 36.8 million shares of FedEx common stock at an average price of $131.83 per share for a total of $4.9 billion.
Dividends Declared per Common Share | DIVIDENDS DECLARED PER COMMON SHARE. On June 6, 2016, our Board of Directors decla red a quarterly dividend of $0.40 per share of common stock. The dividend was paid on July 1, 201 6 to stockholders of record as of the close of bus iness on June 16, 201 6. Each quarterly dividend payment is subject to review and approval by our Board of Directors, and we evaluate our dividend payment amount on an annual basis at the end of each fiscal year.
Use Of Estimates | USE OF ESTIMATES. The preparation of our consolidated financial statements requires the use of estimates and assumptions that affect the reported amounts of assets and liabilities, the reported amounts of revenues and expenses and the disclosure of contingent liabilities. Management makes its best estimate of the ultimate outcome for these items based on historical trends and other information available when the financial statements are prepared. Changes in estimates are recognized in accordance with the accounting rules for the estimate, which is typically in the period when new information becomes available to management. Areas where the nature of the estimate makes it reasonably possible that actual results could materially differ from amounts estimated include: self-insurance accruals; retirement plan obligations; long-term incentive accruals; tax liabilities; loss contingencies; litigation claims; impairment assessments on long-lived assets (including goodwill); and purchase price allocations.

X
- Definition Describes the entity's policy for recording deferred gains on the sale and leaseback of aircraft and other property and equipment. + References No definition available. + Details
Name: | fdx_DeferredGainsPolicyTextBlock
Namespace Prefix: | fdx_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Describes the declaration of the company dividend including date declared, date paid and the amount of dividend. + References No definition available. + Details
Name: | fdx_DividendsDeclaredPerCommonShareTextBlock
Namespace Prefix: | fdx_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Describes the entity's status regarding employees employed under a collective bargaining agreement. + References No definition available. + Details
Name: | fdx_EmployeesUnderCollectiveBargainingArrangementsPolicyTextBlock
Namespace Prefix: | fdx_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Describes the entity's policy for reporting cost regarding spare parts, supplies and fuel. Also describes the policy for determining allowances for obsolescence. + References No definition available. + Details
Name: | fdx_SparePartsSuppliesAndFuelPolicyTextBlock
Namespace Prefix: | fdx_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- References No definition available. + Details
Name: | us-gaap_AccountingPoliciesAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Disclosure of accounting policy for advertising costs that are expensed, indicating whether such costs are expensed as incurred or the first period in which the advertising takes place. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 340 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=51662920&loc=d3e8275-108329 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=51655414&loc=d3e18780-107790 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 340 -SubTopic 20 -Section 55 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=51677389&loc=d3e8384-108330 + Details
Name: | us-gaap_AdvertisingCostPolicyExpensedAdvertisingCost
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Disclosure of accounting policy for cash and cash equivalents, including the policy for determining which items are treated as cash equivalents. Other information that may be disclosed includes (1) the nature of any restrictions on the entity's use of its cash and cash equivalents, (2) whether the entity's cash and cash equivalents are insured or expose the entity to credit risk, (3) the classification of any negative balance accounts (overdrafts), and (4) the carrying basis of cash equivalents (for example, at cost) and whether the carrying amount of cash equivalents approximates fair value. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 305 -SubTopic 10 -Section 05 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6375392&loc=d3e26790-107797 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6367179&loc=d3e4273-108586 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Cash -URI http://asc.fasb.org/extlink&oid=6506951 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=51655414&loc=d3e18780-107790 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Cash Equivalents -URI http://asc.fasb.org/extlink&oid=6507016 Reference 6: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Financial Reporting Release (FRR) -Number 203 -Paragraph 02-03 Reference 7: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 1 -Article 5 + Details
Name: | us-gaap_CashAndCashEquivalentsPolicyTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Disclosure of accounting policy for credit risk. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 825 -SubTopic 10 -Section 55 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6875567&loc=d3e14489-108613 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 825 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=51676700&loc=d3e61082-112788 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 825 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=28088331&loc=SL29635902-196195 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 825 -SubTopic 10 -Section 50 -Paragraph 21 -URI http://asc.fasb.org/extlink&oid=49121117&loc=d3e13537-108611 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 825 -SubTopic 10 -Section 50 -Paragraph 20 -URI http://asc.fasb.org/extlink&oid=49121117&loc=d3e13531-108611 Reference 6: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 825 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=51676700&loc=d3e61044-112788 + Details
Name: | us-gaap_ConcentrationRiskCreditRisk
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Disclosure of accounting policy regarding (1) the principles it follows in consolidating or combining the separate financial statements, including the principles followed in determining the inclusion or exclusion of subsidiaries or other entities in the consolidated or combined financial statements and (2) its treatment of interests (for example, common stock, a partnership interest or other means of exerting influence) in other entities, for example consolidation or use of the equity or cost methods of accounting. The accounting policy may also address the accounting treatment for intercompany accounts and transactions, noncontrolling interest, and the income statement treatment in consolidation for issuances of stock by a subsidiary. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=51655414&loc=d3e18780-107790 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 810 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=18733093&loc=d3e5614-111684 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 810 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.3A-02) -URI http://asc.fasb.org/extlink&oid=27015204&loc=d3e355033-122828 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph k -Article 1 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02, 03 -Article 3A + Details
Name: | us-gaap_ConsolidationPolicyTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Disclosure of accounting policy for its derivative instruments and hedging activities. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=51655414&loc=d3e18780-107790 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=56946850&loc=d3e41620-113959 Reference 3: 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.(n)) -URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e23780-122690 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=56946850&loc=SL5579240-113959 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 1A -URI http://asc.fasb.org/extlink&oid=56946850&loc=SL5579245-113959 Reference 6: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 7 -URI http://asc.fasb.org/extlink&oid=56946850&loc=d3e41675-113959 Reference 7: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=56946850&loc=d3e41638-113959 + Details
Name: | us-gaap_DerivativesPolicyTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Disclosure of accounting policy for determining an entity's fiscal year or other fiscal period. This disclosure may include identification of the fiscal period end-date, the length of the fiscal period, any reporting period lag between the entity and its subsidiaries, or equity investees. If a reporting lag exists, the closing date of the entity having a different period end is generally noted, along with an explanation of the necessity for using different closing dates. Any intervening events that materially affect the entity's financial position or results of operations are generally also disclosed. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 810 -SubTopic 10 -Section 45 -Paragraph 12 -URI http://asc.fasb.org/extlink&oid=51664549&loc=d3e5291-111683 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 810 -SubTopic 10 -Section S99 -Paragraph 3 -Subparagraph (SX 210.3A-03.(b)) -URI http://asc.fasb.org/extlink&oid=27015204&loc=d3e355100-122828 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 810 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.3A-02.(b)) -URI http://asc.fasb.org/extlink&oid=27015204&loc=d3e355033-122828 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph k -Article 1 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 06 -Article 3 + Details
Name: | us-gaap_FiscalPeriod
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Disclosure of accounting policy for (1) transactions denominated in a currency other than the reporting enterprise's functional currency, (2) translating foreign currency financial statements that are incorporated into the financial statements of the reporting enterprise by consolidation, combination, or the equity method of accounting, and (3) remeasurement of the financial statements of a foreign reporting enterprise in a hyperinflationary economy. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=51655414&loc=d3e18780-107790 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 830 -SubTopic 30 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6450520&loc=d3e32583-110901 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 830 -SubTopic 20 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6450222&loc=d3e30840-110895 + Details
Name: | us-gaap_ForeignCurrencyTransactionsAndTranslationsPolicyTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Disclosure of accounting policy for goodwill. This accounting policy also may address how an entity assesses and measures impairment of goodwill, how reporting units are determined, how goodwill is allocated to such units, and how the fair values of the reporting units are determined. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=51655414&loc=d3e18780-107790 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=35741047&loc=d3e13816-109267 + Details
Name: | us-gaap_GoodwillAndIntangibleAssetsGoodwillPolicy
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Disclosure of accounting policy for recognizing and measuring the impairment of long-lived assets. An entity also may disclose its accounting policy for long-lived assets to be sold. This policy excludes goodwill and intangible assets. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=51655414&loc=d3e18780-107790 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 360 -SubTopic 10 -Section 05 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=51717228&loc=d3e202-110218 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Staff Accounting Bulletin (SAB) -Number Topic 5 -Section CC -Subsection 3 + Details
Name: | us-gaap_ImpairmentOrDisposalOfLongLivedAssetsPolicyTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Disclosure of accounting policy for income taxes, which may include its accounting policies for recognizing and measuring deferred tax assets and liabilities and related valuation allowances, recognizing investment tax credits, operating loss carryforwards, tax credit carryforwards, and other carryforwards, methodologies for determining its effective income tax rate and the characterization of interest and penalties in the financial statements. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=51655414&loc=d3e18780-107790 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 19 -URI http://asc.fasb.org/extlink&oid=6907707&loc=d3e32840-109319 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 30 -Section 05 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6423966&loc=d3e40913-109327 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 954 -SubTopic 740 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6491622&loc=d3e9504-115650 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 17 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=6907707&loc=d3e32809-109319 Reference 6: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 45 -Paragraph 25 -URI http://asc.fasb.org/extlink&oid=37586315&loc=d3e32247-109318 Reference 7: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 45 -Paragraph 28 -URI http://asc.fasb.org/extlink&oid=37586315&loc=d3e32280-109318 + Details
Name: | us-gaap_IncomeTaxPolicyTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Disclosure of accounting policy for interest capitalization. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 835 -SubTopic 20 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6450988&loc=d3e26243-108391 + Details
Name: | us-gaap_InterestCapitalizationPolicyPolicyTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Disclosure of accounting policy for leasing arrangements (both lessor and lessee). This disclosure may address (1) lease classification (that is, operating versus capital), (2) how the term of a lease is determined (for example, the circumstances in which a renewal option is considered part of the lease term), (3) how rental revenue or expense is recognized for a lease that contains rent escalations, (4) an entity's accounting treatment for deferred rent, including that which arises from lease incentives, rent abatements, rent holidays, or tenant allowances (5) an entity's accounting treatment for contingent rental payments and (6) an entity's policy for reviewing, at least annually, the residual values of sales-type and direct-finance leases. The disclosure also may indicate how the entity accounts for its capital leases, leveraged leases or sale-leaseback transactions. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=51655414&loc=d3e18780-107790 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 840 -SubTopic 20 -Section 05 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6453394&loc=d3e39740-112701 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 40 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6482485&loc=d3e14754-158437 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 840 -SubTopic 40 -Section 05 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6456037&loc=d3e48589-112741 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 840 -SubTopic 30 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6455398&loc=d3e45280-112737 + Details
Name: | us-gaap_LeasePolicyTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition The entire disclosure for the nature of an entity's business, major products or services, principal markets including location, and the relative importance of its operations in each business and the basis for the determination, including but not limited to, assets, revenues, or earnings. For an entity that has not commenced principal operations, disclosures about the risks and uncertainties related to the activities in which the entity is currently engaged and an understanding of what those activities are being directed toward. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 275 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=51801978&loc=d3e6003-108592 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 275 -SubTopic 10 -Section 50 -Paragraph 2A -URI http://asc.fasb.org/extlink&oid=51801978&loc=SL51803626-108592 + Details
Name: | us-gaap_NatureOfOperations
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Disclosure of accounting policy for pension and other postretirement benefit plans. This accounting policy may address (1) the types of plans sponsored by the entity, and the benefits provided by each plan (2) groups that participate in (or are covered by) each plan (3) how plan assets, liabilities and expenses are measured, including the use of any actuaries and (4) significant assumptions used by the entity to value plan assets and liabilities and how such assumptions are derived. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=51655414&loc=d3e18780-107790 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 70 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=49170846&loc=d3e28014-114942 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 60 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6414199&loc=d3e39622-114963 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 80 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=49170332&loc=d3e29149-114947 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 30 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6412939&loc=d3e15145-114933 Reference 6: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=58740216&loc=d3e1928-114920 + Details
Name: | us-gaap_PensionAndOtherPostretirementPlansPolicy
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Disclosure of accounting policy for reclassifications that affects the comparability of the financial statements. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 205 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6359566&loc=d3e326-107755 + Details
Name: | us-gaap_PriorPeriodReclassificationAdjustmentDescription
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Disclosure of accounting policy for long-lived, physical assets used in the normal conduct of business and not intended for resale. Includes, but is not limited to, basis of assets, depreciation and depletion methods used, including composite deprecation, estimated useful lives, capitalization policy, accounting treatment for costs incurred for repairs and maintenance, capitalized interest and the method it is calculated, disposals and impairments. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 360 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6391035&loc=d3e2868-110229 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=51655414&loc=d3e18780-107790 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.13(a)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
Name: | us-gaap_PropertyPlantAndEquipmentPolicyTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Disclosure of accounting policy for revenue recognition. If the entity has different policies for different types of revenue transactions, the policy for each material type of transaction is generally disclosed. If a sales transaction has multiple element arrangements (for example, delivery of multiple products, services or the rights to use assets) the disclosure may indicate the accounting policy for each unit of accounting as well as how units of accounting are determined and valued. The disclosure may encompass important judgment as to appropriateness of principles related to recognition of revenue. The disclosure also may indicate the entity's treatment of any unearned or deferred revenue that arises from the transaction. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section 50 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=51655414&loc=d3e18823-107790 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=51655414&loc=d3e18780-107790 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=51655414&loc=d3e18726-107790 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 605 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SAB TOPIC 13.B.Q1) -URI http://asc.fasb.org/extlink&oid=27012821&loc=d3e214044-122780 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Staff Accounting Bulletin (SAB) -Number Topic 13 -Section B -Paragraph Question 1 + Details
Name: | us-gaap_RevenueRecognitionPolicyTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Disclosure of accounting policy for self-insurance reserves, including, but not limited to incurred but not reported reserves (IBNR). + References No definition available. + Details
Name: | us-gaap_SelfInsuranceReservePolicyTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Disclosure of accounting policy for stock option and stock incentive plans. This disclosure may include (1) the types of stock option or incentive plans sponsored by the entity (2) the groups that participate in (or are covered by) each plan (3) significant plan provisions and (4) how stock compensation is measured, and the methodologies and significant assumptions used to determine that measurement. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5047-113901 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=51655414&loc=d3e18780-107790 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (b),(f) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
Name: | us-gaap_ShareBasedCompensationOptionAndIncentivePlansPolicy
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Disclosure of accounting policy for its capital stock transactions, including dividends and accumulated other comprehensive income. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=51655414&loc=d3e18726-107790 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6928386&loc=d3e21459-112644 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=51655414&loc=d3e18780-107790 + Details
Name: | us-gaap_StockholdersEquityPolicyTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Disclosure of accounting policy for the use of estimates in the preparation of financial statements in conformity with generally accepted accounting principles. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 275 -SubTopic 10 -Section 50 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=51801978&loc=d3e6061-108592 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 275 -SubTopic 10 -Section 50 -Paragraph 9 -URI http://asc.fasb.org/extlink&oid=51801978&loc=d3e6143-108592 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 275 -SubTopic 10 -Section 50 -Paragraph 8 -URI http://asc.fasb.org/extlink&oid=51801978&loc=d3e6132-108592 + Details
Name: | us-gaap_UseOfEstimates
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration