XML 23 R9.htm IDEA: XBRL DOCUMENT
v3.6.0.2

Summary of significant accounting policies | 12 Months Ended
--- | ---
Dec. 31, 2016
Accounting Policies [Abstract] |
Summary of significant accounting policies | Summary of significant accounting policies Basis of presentation The accompanying consolidated financial statements are prepared in accordance with accounting principles generally accepted in the United States of America ("GAAP"). Principles of consolidation The consolidated financial statements include the accounts of the Company and its wholly and majority owned subsidiaries after elimination of intercompany balances and transactions. Noncontrolling interest principally represents ownership by others of the equity in our consolidated majority owned South African subsidiary. The Company's investment in an operating entity where the Company has the ability to exert significant influence, but does not control operating and financial policies, is accounted for using the equity method. The Company's share of the net income of this entity is recorded as "Earnings from equity investment" in the consolidated statements of comprehensive income (loss). The investment in this entity is included in "Investment in unconsolidated subsidiary" in the consolidated balance sheets. The Company reports its share of equity earnings within operating income as the investee's operations are similar in nature to the operations of the Company. Use of estimates The preparation of financial statements in conformity with GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities as of the date of the financial statements and the reported amounts of revenues and expenses during the reporting period. In the preparation of these consolidated financial statements, estimates and assumptions have been made by management including, among others, costs to complete contracts, an assessment of percentage of completion of projects, the selection of useful lives of tangible and intangible assets, fair value of reporting units used for goodwill impairment testing, expected future cash flows from long lived assets to support impairment tests, provisions necessary for trade receivables, amounts of deferred taxes and income tax contingencies. Actual results could differ from these estimates. The financial reporting of contracts depends on estimates, which are assessed continually during the term of those contracts. Recognized revenues and income are subject to revisions as the contract progresses to completion and changes in estimates are reflected in the period in which the facts that give rise to the revisions become known. Additional information that enhances and refines the estimating process that is obtained after the balance sheet date, but before issuance of the financial statements is reflected in the financial statements. Cash and cash equivalents Cash and cash equivalents consist of cash on deposit and high quality, short term money market instruments with an original maturity of three months or less. Cash equivalents are stated at cost plus accrued interest, which approximates fair value. Accounts receivable-trade Trade accounts receivables are carried at their estimated collectible amounts. Trade credit is generally extended on a short-term basis; thus receivables do not bear interest, although a finance charge may be applied to amounts past due. The Company maintains an allowance for doubtful accounts for estimated losses that may result from the inability of its customers to make required payments. Such allowances are based upon several factors including, but not limited to, credit approval practices, industry and customer historical experience as well as the current and projected financial condition of the specific customer. Accounts receivable outstanding longer than contractual terms are considered past due. The Company writes off accounts receivable to the allowance for doubtful accounts when they become uncollectible. Any payments subsequently received on receivables previously written off are credited to bad debt expense. The change in amounts of the allowance for doubtful accounts during the three year period ended December 31, 2016 is as follows (in thousands):
Period ended |  | Balance at beginning of period |  | Charged to expense |  | Deductions or other |  | Balance at end of period
December 31, 2014 |  | $ | 5,725 |  |  | $ | 2,492 |  |  | $ | (2,571 | ) |  | $ | 5,646 |
December 31, 2015 |  | 5,646 |  |  | 4,358 |  |  | (1,885 | ) |  | 8,119 |
December 31, 2016 |  | 8,119 |  |  | 485 |  |  | (5,273 | ) |  | 3,331 |
Inventories Inventory consisting of finished goods and materials and supplies held for resale is carried at the lower of cost or market. For certain operations, cost, which includes the cost of raw materials and labor for finished goods, is determined using standard cost which approximates a first-in first-out basis. For other operations, this cost is determined on an average cost, first-in first-out or specific identification basis. Market means current replacement cost except that (1) market should not exceed net realizable value and (2) market should not be less than net realizable value reduced by an allowance for a normal profit margin. The Company continuously evaluates inventories, based on an analysis of inventory levels, historical sales experience and future sales forecasts, to determine obsolete, slow-moving and excess inventory. Adjustments to reduce such inventory to its estimated recoverable value have been recorded by management. Property and equipment Property and equipment are stated at cost less accumulated depreciation. Equipment held under capital leases are stated at the present value of minimum lease payments. Expenditures for property and equipment and for items which substantially increase the useful lives of existing assets are capitalized at cost and depreciated over their estimated useful life utilizing the straight-line method. Routine expenditures for repairs and maintenance are expensed as incurred. Depreciation is computed using the straight-line method based on the estimated useful lives of assets, generally three to thirty years. Property and equipment held under capital leases are amortized straight-line over the shorter of the lease term or estimated useful life of the asset. Gains or losses resulting from the disposition of assets are recognized in income, and the related asset cost and accumulated depreciation are removed from the accounts. Assets acquired in connection with business combinations are recorded at fair value. Rental equipment consists of equipment leased to customers under operating leases. Rental equipment is recorded at cost and depreciated using the straight-line method over the estimated useful life of three to ten years. The Company reviews long-lived assets for potential impairment whenever events or changes in circumstances indicate that the carrying amount of a long-lived asset may not be recoverable. In performing the review for impairment, future cash flows expected to result from the use of the asset and its eventual disposal are estimated. If the undiscounted future cash flows are less than the carrying amount of the assets, there is an indication that the asset may be impaired. The amount of the impairment is measured as the difference between the carrying value and the estimated fair value of the asset. The fair value is determined either through the use of an external valuation, or by means of an analysis of discounted future cash flows based on expected utilization. The impairment loss recognized represents the excess of the assets carrying value as compared to its estimated fair value. For the year ended December 31, 2016, the Company recorded an impairment loss of $4.3 million related to an operation in South Africa and one of the Company's Texas facilities. For the years ended December 31, 2015 and 2014, no impairments were recorded. To the extent that asset retirement obligations are incurred, the Company records the fair value of an asset retirement obligation as a liability in the period in which the associated legal obligation is incurred. The fair values of these obligations are recorded as liabilities on a discounted basis. The costs associated with these liabilities are capitalized as part of the related assets and depreciated. Over time, the liabilities are accreted for any change in their present value. The current portion of the liability is included in other accrued liabilities and non-current portion is included in other long-term liabilities on the consolidated balance sheets. Goodwill and intangible assets For goodwill and intangible assets with indefinite lives, an assessment for impairment is performed annually or when there is an indication an impairment may have occurred. The Company completes its annual impairment test for goodwill and other indefinite-lived intangibles using an assessment date of October 1. Goodwill is reviewed for impairment by comparing the carrying value of each of our six reporting unit’s net assets (including allocated goodwill) to the fair value of the reporting unit. The fair value of the reporting units is determined using a discounted cash flow approach. Determining the fair value of a reporting unit requires the use of estimates and assumptions. Such estimates and assumptions include revenue growth rates, operating margins, weighted average costs of capital, a terminal growth rate, and future market conditions, among others. The Company believes that the estimates and assumptions used in impairment assessments are reasonable. If the reporting unit’s carrying value is greater than its fair value, a second step is performed whereby the implied fair value of goodwill is estimated by allocating the fair value of the reporting unit in a hypothetical purchase price allocation analysis. The Company recognizes a goodwill impairment charge for the amount by which the carrying value of goodwill exceeds its fair value. Any impairment losses are reflected in operating income. At October 1, 2016, the Company performed the annual impairment test on each of its reporting units and concluded that there had been no impairment because the estimated fair value of each of those reporting units exceeded its carrying value. As such, no impairment losses were recorded on goodwill for the year ended December 31, 2016. If the market conditions do not improve further, however, we may have additional impairment charges in our Subsea reporting unit in the future. For the year ended December 31, 2015, the Company performed the impairment test on all six reporting units, and recorded $123.2 million of impairment losses for its Subsea reporting unit. In 2014, no goodwill impairment losses were recorded. Intangible assets with definite lives comprised of customer and distributor relationships, non-compete agreements, and patents are amortized on a straight-line basis over the life of the intangible asset, generally three to seventeen years. These assets are tested for impairment whenever events or changes in circumstances indicate that their carrying amount may not be recoverable. In the fourth quarter of 2015, $1.9 million of intangible assets were written off related to trade names no longer in use. No impairments to intangible assets were recorded in 2016 and 2014. Refer to Note 7, Goodwill and intangible assets, for further discussion. Recognition of provisions for contingencies In the ordinary course of business, the Company is subject to various claims, suits and complaints. The Company, in consultation with internal and external advisors, will provide for a contingent loss in the consolidated financial statements if it is probable that a liability has been incurred at the date of the consolidated financial statements and the amount can be reasonably estimated. If it is determined that the reasonable estimate of the loss is a range and that there is no best estimate within the range, provision will be made for the lower amount of the range. Legal costs are expensed as incurred. An assessment is made of the areas where potential claims may arise under the contract warranty clauses. Where a specific risk is identified and the potential for a claim is assessed as probable and can be reasonably estimated, an appropriate warranty provision is recorded. Warranty provisions are eliminated at the end of the warranty period except where warranty claims are still outstanding. The liability for product warranty is included in other accrued liabilities on the consolidated balance sheets. Changes in the Company’s warranty liability were as follows (in thousands):
Period ended |  | Balance at beginning of period |  | Charged to expense |  | Deductions or other |  | Balance at end of period
December 31, 2014 |  | $ | 5,280 |  |  | $ | 2,588 |  |  | $ | (2,554 | ) |  | $ | 5,314 |
December 31, 2015 |  | 5,314 |  |  | 5,539 |  |  | (5,156 | ) |  | 5,697 |
December 31, 2016 |  | 5,697 |  |  | 4,031 |  |  | (6,504 | ) |  | 3,224 |
Revenue recognition and deferred revenue Revenue is recognized when all of the following criteria have been met: (a) persuasive evidence of an arrangement exists, (b) delivery of the equipment has occurred or services have been rendered, (c) the price of the product or service is fixed and determinable and (d) collectability is reasonably assured. Revenue from product sales, including shipping costs, is recognized as title passes to the customer, which generally occurs when items are shipped from the Company’s facilities. Revenue from services is recognized when the service is completed to the customer’s specifications. Customers are sometimes billed in advance of services performed or products manufactured, and the Company recognizes the associated liability as deferred revenue. Revenue generated from long-term contracts typically longer than six months in duration are recognized on the percentage-of-completion method of accounting. The Company recognizes revenue and cost of goods sold each period based upon the advancement of the work-in-progress unless the stage of completion is insufficient to enable a reasonably certain forecast of profit to be established. In such cases, no profit is recognized during the period. The percentage-of-completion is calculated based on the ratio of costs incurred to-date to total estimated costs, taking into account the level of completion. The percentage-of-completion method requires management to calculate reasonably dependable estimates of progress toward completion of contract revenues and contract costs. Whenever revisions of estimated contract costs and contract values indicate that the contract costs will exceed estimated revenues, thus creating a loss, a provision for the total estimated loss is recorded in that period. Primarily related to the remotely operated vehicles ("ROVs"), which may take longer to manufacture, accounting estimates during the course of the project may change. The effect of such a change, which can be upward as well as downward, is accounted for in the period of change and the cumulative income recognized to date is adjusted to reflect the latest estimates. These revisions to estimates are accounted for on a prospective basis. On a contract by contract basis, cost and profit in excess of billings represents the cumulative revenue recognized less the cumulative billings to the customer. Similarly, billings in excess of costs and profits represent the cumulative billings to the customer less the cumulative revenue recognized. Revenue from the rental of equipment or providing of services is recognized over the period when the asset is rented or services are rendered and collectability is reasonably assured. Rates for asset rental and service provision are priced on a per day, per man hour, or similar basis. Concentration of credit risk Financial instruments which potentially subject the Company to credit risk include trade accounts receivable. Trade accounts receivable consist of uncollateralized receivables from domestic and internationally based customers. For the years ended December 31, 2016, 2015 and 2014, no one customer accounted for 10% or more of the total revenue or 10% more of the total accounts receivable balance at the end of the respective period. Share-based compensation The Company measures all share-based compensation awards at fair value on the date they are granted to employees and directors, and recognizes compensation cost, net of forfeitures, over the requisite service period for awards with only a service condition, and over a graded vesting period for awards with service and performance or market conditions. The fair value of share-based compensation awards with market conditions is measured using a lattice model and in accordance with Accounting Standards Codification ("ASC") 718, is not adjusted based on actual achievement of the performance goals. The Black-Scholes option pricing model is used to measure the fair value of options. The following sections address the assumptions used related to the Black-Scholes option pricing model: Expected life The expected term of stock options represents the period the stock options are expected to remain outstanding and is based on the simplified method, which is the weighted average vesting term plus the original contractual term divided by two. The Company uses the simplified method due to a lack of sufficient historical share option exercise experience upon which to estimate an expected term. Expected volatility Expected volatility measures the amount that a stock price has fluctuated or is expected to fluctuate during a period and is estimated based on a weighted average of the Company's historical stock price. Dividend yield The Company has never declared or paid any cash dividends and does not plan to pay cash dividends in the foreseeable future. Therefore, a zero expected dividend yield was used in the valuation model. Risk-free interest rate The risk-free interest rate is based on United States Treasury zero-coupon issues with remaining terms similar to the expected term on the options. Forfeitures The Company estimates forfeitures at the time of grant and revises those estimates in subsequent periods if actual forfeitures differ from those estimates. The Company uses historical data to estimate pre-vesting option forfeitures and record stock-based compensation expense only for those awards that are expected to vest. If the Company’s actual forfeiture rate is materially different from its estimate, the stock-based compensation expense could be different from what the Company has recorded in the current period. Historically, estimated forfeitures have been in line with actual forfeitures. Income taxes The Company follows the liability method of accounting for income taxes. Under this method, deferred income tax assets and liabilities are determined based upon temporary differences between the carrying amounts and tax bases of the Company’s assets and liabilities at the balance sheet date, and are measured using enacted tax rates and laws that will be in effect when the differences are expected to reverse. The effect on deferred tax assets and liabilities of a change in the tax rates is recognized in income in the period in which the change occurs. The Company records a valuation allowance in each reporting period when management believes that it is more likely than not that any deferred tax asset created will not be realized. Accounting guidance for income taxes requires that the Company recognize the financial statement benefit of a tax position only after determining that the relevant tax authority would more likely than not sustain the position following an audit. If a tax position meets the "more likely than not" recognition criteria, accounting guidance requires the tax position be measured at the largest amount of benefit greater than 50% likely of being realized upon ultimate settlement. Earnings per share Basic earnings per share for all periods presented equals net income divided by the weighted average number of the shares of the Company’s common stock outstanding during the period. Diluted earnings per share is computed by dividing net income by the weighted average number of shares of the Company’s common stock outstanding during the period as adjusted for the dilutive effect of the Company’s stock options, restricted share plans. The exercise price of each option is based on the Company’s stock price at the date of grant. There is no dilutive effect for 2016 and 2015 since the Company is in a net loss position. The diluted earnings per share calculation excludes approximately 0.5 million stock options for the year ended December 31, 2014, because they were anti-dilutive as the option exercise price or warrant conversion price was greater than the average market price of the common stock. The following is a reconciliation of the number of shares used for the basic and diluted earnings per share computations (shares in thousands):
|  | December 31,
|  | 2016 |  | 2015 |  | 2014
Basic weighted average shares outstanding |  | 91,226 |  |  | 89,908 |  |  | 92,628 |
Dilutive effect of stock option, restricted share plan and warrants |  | — |  |  | — |  |  | 2,680 |
Diluted weighted average shares outstanding |  | 91,226 |  |  | 89,908 |  |  | 95,308 |
Non-U.S. local currency translation The Company operates globally and its primary functional currency is the U.S. dollar ($). The majority of the Company’s non-U.S. operations have designated the local currency as their functional currency. Financial statements of these non-U.S. operations are translated into U.S. dollars using the current rate method whereby assets and liabilities are translated at the balance sheet rate and income and expenses are translated into U.S. dollars at the average exchange rates in effect during the period. The resultant translation adjustments are reported as a component of accumulated other comprehensive income (loss) within stockholders’ equity. Noncontrolling interest Noncontrolling interests are classified as equity in the consolidated balance sheets. Net earnings include the net earnings for both controlling and noncontrolling interests, with disclosure of both amounts on the consolidated statements of comprehensive income (loss). Fair value The carrying amounts for financial instruments classified as current assets and current liabilities approximate fair value, due to the short maturity of such instruments. The book values of other financial instruments, such as the Company’s debt related to the credit facility, approximates fair value because interest rates charged are similar to other financial instruments with similar terms and maturities and the rates vary in accordance with a market index. For the financial assets and liabilities disclosed at fair value, fair value is determined as the exit price, or the price that would be received to sell an asset or paid to transfer a liability in an orderly transaction between market participants at the measurement date. The established fair value hierarchy divides fair value measurement into three broad levels:
• | Level 1 - inputs are quoted prices (unadjusted) in active markets for identical assets or liabilities that the reporting entity has the ability to access at the measurement date;
• | Level 2 - inputs other than quoted prices included within Level 1 that are observable for the assets or liability, either directly or indirectly; and
• | Level 3 - inputs are unobservable for the asset or liability, which reflect the best judgment of management.
The financial assets and liabilities that are disclosed at fair value for disclosure purposes are categorized in one of the above three levels based on the lowest level input that is significant to the fair value measurement in its entirety. Level 1 provides the most reliable measure of fair value, whereas Level 3 generally requires significant management judgment. Recent accounting pronouncements From time to time, new accounting pronouncements are issued by the Financial Accounting Standards Board ("FASB"), which are adopted by the Company as of the specified effective date. In November 2016, the FASB issued ASU No. 2016-18 Statement of Cash Flows (Topic 230) - Restricted Cash a consensus of the FASB Emerging Issues Task Force. This new guidance requires that a statement of cash flows explain the change during the period in the total of cash, cash equivalents, and amounts generally described as restricted cash or restricted cash equivalents. Therefore, amounts generally described as restricted cash and restricted cash equivalents should be included with cash and cash equivalents when reconciling the beginning-of-period and end-of-period total amounts shown on the statement of cash flows. ASU 2016-18 is effective for fiscal years beginning after December 15, 2018, and interim periods within fiscal years beginning after December 15, 2019 and is not expected to have a material impact on the Company's consolidated financial statements. In October 2016, the FASB issued ASU No. 2016-16 Income Tax (Topic 740) - Intra-Entity Transfers of Assets Other Than Inventory. Current GAAP prohibits the recognition of current and deferred income taxes for an intra-entity asset transfer until the asset has been sold to an outside party. This new guidance eliminates this exception and requires an entity to recognize the income tax consequences of an intra-entity transfer of an asset other than inventory when the transfer occurs. ASU 2016-16 is effective for annual reporting periods beginning after December 15, 2017, including interim reporting periods within those annual reporting periods, and should be applied on a modified retrospective basis through a cumulative-effect adjustment directly to retained earnings as of the beginning of the period of adoption. The ASU is not expected to have a material impact on the Company's consolidated financial statements. In August 2016, the FASB issued Accounting Standards Update ("ASU") No. 2016-15 Cash Flow Statement (Topic 230) - Classification of Certain Cash Receipts and Cash Payments. This new guidance addresses eight specific cash flow issues with the objective of reducing the existing diversity in practice, including: debt prepayment or debt extinguishment costs, settlement of zero-coupon debt instruments or other debt instruments, contingent consideration payments made after a business combination, proceeds from the settlement of insurance claims, proceeds from the settlement of corporate-owned life insurance policies, distributions received from equity method investees, beneficial interests in securitization transactions, and separately identifiable cash flows and application of the predominance principle. The only issue currently relevant to the Company is distributions received from equity method investees, where the new guidance allows an accounting policy election between the cumulative earnings approach and the nature of the distribution approach. The Company will continue to use the cumulative earnings approach, therefore the guidance is not expected to have a material impact on the Company's consolidated financial statements. ASU 2016-15 is effective for public business entities for fiscal years beginning after December 15, 2017, and interim periods within those fiscal years. In May 2016, the FASB issued ASU No. 2016-11 Revenue Recognition (Topic 605) and Derivatives and Hedging (Topic 815) - Rescission of SEC Guidance Because of Accounting Standards Updates No. 2014-09 and No. 2014-16 Pursuant to Staff Announcements at the March 3, 2016 EITF Meeting. This new guidance rescinded certain SEC staff observer comments in Topic 605 related to revenue and expense recognition for freight services in process and accounting for shipping and handling fees and costs, in Topic 932 related to gas-balancing arrangements, and in Topic 815 related to the nature of a host contract related to a hybrid instrument issued in the form of a share. ASU 2016-11 is effective upon adoption of Topic 606 and is not expected to have a material impact on the Company's consolidated financial statements. In March 2016, the FASB issued ASU No. 2016-09, Improvements to Employee Share-Based Payment Accounting. This new guidance includes provisions intended to simplify how share-based payments are accounted for and presented in the financial statements, including: a) all excess tax benefits and tax deficiencies should be recognized as income tax expense or benefit in the income statement; b) excess tax benefits should be classified along with other income tax cash flows as an operating activity; c) an entity can make an entity-wide accounting policy election to either estimate the number of awards that are expected to vest or account for forfeitures when they occur; d) the threshold to qualify for equity classification permits withholding up to the maximum statutory tax rates in the applicable jurisdictions; e) cash paid by an employer should be classified as a financing activity when shares are directly withheld for tax withholding purposes. There are also two additional provisions for non-public entities that do not apply to the Company. The element of the new standard that will have the most impact on Company's financial statements will be income tax consequences. Excess tax benefits and tax deficiencies on stock-based compensation awards will now be included in the tax provision within the consolidated statement of comprehensive income, rather than the Company's current accounting of recording in additional paid-in capital on the consolidated balance sheet. The standard will take effect for public companies for annual periods beginning after December 15, 2016, and interim periods within those annual periods. In February 2016, the FASB issued ASU No. 2016-02, Leases. Under this new guidance, lessees will be required to recognize assets and liabilities on the balance sheet for the rights and obligations created by all leases with terms of greater than twelve months. The standard will take effect for public companies with fiscal years, and interim periods within those fiscal years, beginning after December 15, 2018. The Company is currently evaluating the impact of the adoption of this guidance. In August 2014, the FASB issued ASU No. 2014-15, Presentation of Financial Statements - Going Concern. The new standard requires management to evaluate whether there are conditions or events that raise substantial doubt as to an entity's ability to continue as a going concern for both annual and interim reporting periods. The guidance was effective for the Company for the annual period ending after December 15, 2016 and interim periods thereafter. The guidance did not have a material impact on the Company's consolidated financial statements. In May 2014, the FASB issued ASU No. 2014-09, Revenue from Contracts with Customers (Topic 606). The comprehensive new standard will supersede existing revenue recognition guidance and require revenue to be recognized when promised goods or services are transferred to customers in amounts that reflect the consideration to which the company expects to be entitled in exchange for those goods or services. Adoption of the new rules could affect the timing of revenue recognition for certain transactions. The guidance permits two implementation approaches, one requiring retrospective application of the new standard with restatement of prior years and one requiring prospective application of the new standard with disclosure of results under old standards. The FASB issued several subsequent standards in 2016 containing implementation guidance related to the new standard. These standards provide additional guidance related to principal versus agent considerations, licensing, and identifying performance obligations. Additionally, these standards provide narrow-scope improvements and practical expedients as well as technical corrections and improvements. Overall, the new guidance is to be effective for the fiscal year beginning after December 15, 2017. Companies are able to early adopt the pronouncement, however not before fiscal years beginning after December 15, 2016. The Company currently anticipates that it will adopt this standard using the modified retrospective method.

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 The entire disclosure for all significant accounting policies of the reporting entity. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section 50 -Paragraph 6 -URI http://asc.fasb.org/extlink&oid=68058157&loc=d3e18861-107790 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=68058157&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=68058157&loc=d3e18726-107790 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=68058157&loc=d3e18743-107790 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section 50 -Paragraph 5 -URI http://asc.fasb.org/extlink&oid=68058157&loc=d3e18854-107790 + Details
Name: | us-gaap_SignificantAccountingPoliciesTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration