XML 80 R69.htm IDEA: XBRL DOCUMENT
v3.20.2

Stockholders' Equity (Schedule Of Stockholders' Equity) (Details) - USD ($) shares in Thousands, $ in Thousands | 3 Months Ended | 9 Months Ended |
--- | --- | --- | ---
Sep. 30, 2020 | Jun. 30, 2020 | Mar. 31, 2020 | Sep. 30, 2019 | Jun. 30, 2019 | Mar. 31, 2019 | Sep. 30, 2020 | Sep. 30, 2019 | Dec. 31, 2019
Stockholders' Equity [Line Items] |  |  |  |  |  |  |  |  |  |
Beginning balance |  | $ 857,270 | $ 880,080 | $ 865,286 | $ 994,574 | $ 1,023,807 | $ 1,062,989 | $ 865,286 | $ 1,062,989 |
Net income (loss) |  | (30,733) | (5,474) | (10,347) | (35,491) | (40,179) | (37,871) | (46,554) | (113,541) |
Distributions declared |  | (1,394) | (1,389) | (5,498) | (5,497) | (10,358) | (10,334) |  |  |
Other comprehensive loss before reclassification |  | (2,696) | (1,333) | 4,532 | 28,095 | 33,260 | (6,883) |  |  |
Amounts reclassified from accumulated other comprehensive loss |  |  | (7) | (4,485) | (53,255) | 3,440 | 10,376 |  |  |
Other comprehensive income (loss), net of tax |  | (2,696) | (1,340) | 47 | (25,160) | 36,700 | 3,493 | (3,989) | 15,033 |
Proceeds from disgorgement of shareholders short-swing profits, net | [1] |  |  |  |  |  | 5,023 |  |  |
Share of equity method investees other comprehensive loss arising during the period, net of tax |  | (21,057) | (16,759) | 41,956 | (10,771) |  |  |  |  |
Issuance of 4.00% convertible notes due 2024, net of tax |  |  |  |  | 2,231 | 22,537 |  |  |  |
Settlement of 3.25% convertible notes due 2019, net of tax |  |  |  |  |  | (271) |  |  |  |
Repurchase of common stock |  |  |  | (11,479) | (16,014) | (39,870) |  |  |  |
Stock-based compensation |  | 2,165 | 2,152 | 115 | 2,590 | 2,208 | 507 |  |  |
Ending balance |  | 803,555 | 857,270 | 880,080 | 906,462 | 994,574 | 1,023,807 | 803,555 | 906,462 |
Proceeds from a shareholder of the company for disgorgement of shareholder short-swing profits |  |  |  |  |  |  | 6,700 |  |  |
Common Stock [Member] |  |  |  |  |  |  |  |  |  |
Stockholders' Equity [Line Items] |  |  |  |  |  |  |  |  |  |
Beginning balance |  | $ 47 | $ 47 | $ 47 | $ 47 | $ 47 | $ 47 | $ 47 | $ 47 |
Beginning balance, Shares |  | 47,467 | 47,307 | 46,964 | 46,919 | 46,922 | 46,638 | 46,964 | 46,638 |
Stock-based compensation, Shares |  |  | 160 | 343 | (4) | (3) | 284 |  |  |
Ending balance, Shares |  | 47,467 | 47,467 | 47,307 | 46,915 | 46,919 | 46,922 | 47,467 | 46,915 |
Ending balance |  | $ 47 | $ 47 | $ 47 | $ 47 | $ 47 | $ 47 | $ 47 | $ 47 |
Additional Paid-In Capital [Member] |  |  |  |  |  |  |  |  |  |
Stockholders' Equity [Line Items] |  |  |  |  |  |  |  |  |  |
Beginning balance |  | 736,688 | 734,616 | 734,580 | 726,068 | 701,673 | 696,222 | 734,580 | 696,222 |
Proceeds from disgorgement of shareholders short-swing profits, net | [1] |  |  |  |  |  | 5,023 |  |  |
Issuance of 4.00% convertible notes due 2024, net of tax |  |  |  |  | 2,231 | 22,537 |  |  |  |
Settlement of 3.25% convertible notes due 2019, net of tax |  |  |  |  |  | (271) |  |  |  |
Stock-based compensation |  | 2,086 | 2,072 | 36 | 2,509 | 2,129 | 428 |  |  |
Ending balance |  | 738,774 | 736,688 | 734,616 | 730,808 | 726,068 | 701,673 | 738,774 | 730,808 |
Retained Earnings [Member] |  |  |  |  |  |  |  |  |  |
Stockholders' Equity [Line Items] |  |  |  |  |  |  |  |  |  |
Beginning balance |  | 123,491 | 131,705 | 148,150 | 226,869 | 277,082 | 324,728 | 148,150 | 324,728 |
Net income (loss) |  | (34,486) | (8,214) | (16,445) | (38,970) | (45,342) | (42,799) |  |  |
Distributions declared |  |  |  |  |  | (4,871) | (4,847) |  |  |
Ending balance |  | 89,005 | 123,491 | 131,705 | 187,899 | 226,869 | 277,082 | 89,005 | 187,899 |
Accum. Other Comp. Income (Loss) [Member] |  |  |  |  |  |  |  |  |  |
Stockholders' Equity [Line Items] |  |  |  |  |  |  |  |  |  |
Beginning balance |  | 12,840 | 30,939 | (11,064) | 24,177 | (12,523) | (16,016) | (11,064) | (16,016) |
Other comprehensive loss before reclassification |  | (2,696) | (1,333) | 4,532 | 28,095 | 33,260 | (6,883) |  |  |
Amounts reclassified from accumulated other comprehensive loss |  |  | (7) | (4,485) | (53,255) | 3,440 | 10,376 |  |  |
Other comprehensive income (loss), net of tax |  | (2,696) | (1,340) | 47 | (25,160) | 36,700 | 3,493 |  |  |
Share of equity method investees other comprehensive loss arising during the period, net of tax |  | (21,057) | (16,759) | 41,956 | (10,771) |  |  |  |  |
Ending balance |  | (10,913) | 12,840 | 30,939 | (11,754) | 24,177 | (12,523) | (10,913) | (11,754) |
Treasury Stock [Member] |  |  |  |  |  |  |  |  |  |
Stockholders' Equity [Line Items] |  |  |  |  |  |  |  |  |  |
Beginning balance |  | $ (131,287) | $ (131,287) | $ (119,808) | $ (98,032) | $ (58,162) | $ (58,162) | $ (119,808) | $ (58,162) |
Beginning balance, Shares |  | 11,813 | 11,813 | 10,932 | 8,733 | 5,536 | 5,536 | 10,932 | 5,536 |
Repurchase of common stock |  |  |  | $ (11,479) | $ (16,014) | $ (39,870) |  |  |  |
Repurchase of common stock, Shares |  |  |  | 881 | 1,663 | 3,197 |  |  |  |
Ending balance, Shares |  | 11,813 | 11,813 | 11,813 | 10,396 | 8,733 | 5,536 | 11,813 | 10,396 |
Ending balance |  | $ (131,287) | $ (131,287) | $ (131,287) | $ (114,046) | $ (98,032) | $ (58,162) | $ (131,287) | $ (114,046) |
Total Green Plains Stockholders' Equity [Member] |  |  |  |  |  |  |  |  |  |
Stockholders' Equity [Line Items] |  |  |  |  |  |  |  |  |  |
Beginning balance |  | 741,779 | 766,020 | 751,905 | 879,129 | 908,117 | 946,819 | 751,905 | 946,819 |
Net income (loss) |  | (34,486) | (8,214) | (16,445) | (38,970) | (45,342) | (42,799) |  |  |
Distributions declared |  |  |  |  |  | (4,871) | (4,847) |  |  |
Other comprehensive loss before reclassification |  | (2,696) | (1,333) | 4,532 | 28,095 | 33,260 | (6,883) |  |  |
Amounts reclassified from accumulated other comprehensive loss |  |  | (7) | (4,485) | (53,255) | 3,440 | 10,376 |  |  |
Other comprehensive income (loss), net of tax |  | (2,696) | (1,340) | 47 | (25,160) | 36,700 | 3,493 |  |  |
Proceeds from disgorgement of shareholders short-swing profits, net | [1] |  |  |  |  |  | 5,023 |  |  |
Share of equity method investees other comprehensive loss arising during the period, net of tax |  | (21,057) | (16,759) | 41,956 | (10,771) |  |  |  |  |
Issuance of 4.00% convertible notes due 2024, net of tax |  |  |  |  | 2,231 | 22,537 |  |  |  |
Settlement of 3.25% convertible notes due 2019, net of tax |  |  |  |  |  | (271) |  |  |  |
Repurchase of common stock |  |  |  | (11,479) | (16,014) | (39,870) |  |  |  |
Stock-based compensation |  | 2,086 | 2,072 | 36 | 2,509 | 2,129 | 428 |  |  |
Ending balance |  | 685,626 | 741,779 | 766,020 | 792,954 | 879,129 | 908,117 | 685,626 | 792,954 |
Non-Controlling Interests [Member] |  |  |  |  |  |  |  |  |  |
Stockholders' Equity [Line Items] |  |  |  |  |  |  |  |  |  |
Beginning balance |  | 115,491 | 114,060 | 113,381 | 115,445 | 115,690 | 116,170 | 113,381 | 116,170 |
Net income (loss) |  | 3,753 | 2,740 | 6,098 | 3,479 | 5,163 | 4,928 |  |  |
Distributions declared |  | (1,394) | (1,389) | (5,498) | (5,497) | (5,487) | (5,487) |  |  |
Stock-based compensation |  | 79 | 80 | 79 | 81 | 79 | 79 |  |  |
Ending balance |  | $ 117,929 | $ 115,491 | $ 114,060 | $ 113,508 | $ 115,445 | $ 115,690 | $ 117,929 | $ 113,508 |
3.25% Convertible Notes Due 2019 [Member] |  |  |  |  |  |  |  |  |  |
Stockholders' Equity [Line Items] |  |  |  |  |  |  |  |  |  |
Interest rate, stated percentage |  |  |  |  |  | 3.25% |  |  |  |
Corporate Activities [Member] | Convertible Notes [Member] | 4.00% Convertible Notes Due 2024 [Member] |  |  |  |  |  |  |  |  |  |
Stockholders' Equity [Line Items] |  |  |  |  |  |  |  |  |  |
Interest rate, stated percentage |  |  |  |  | 4.00% | 4.00% |  |  | 4.00% | 4.00%
[1] | During the three months ended March 31, 2019, the company received $6.7 million from a shareholder of the company for disgorgement of shareholder short-swing profits under Section 16(b) under the Exchange Act. The amount was recorded as an increase to additional paid-in capital, net of tax.

X
- Definition Other Comprehensive Income (Loss) Before Share Of Equity Method Investees, Net Of Tax + References No definition available. + Details
Name: | gpre_OtherComprehensiveIncomeLossBeforeShareOfEquityMethodInvesteesNetOfTax
Namespace Prefix: | gpre_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Proceeds From Disgorgement Of Shareholders Short-Swing Profits, Gross + References No definition available. + Details
Name: | gpre_ProceedsFromDisgorgementOfShareholdersShortSwingProfitsGross
Namespace Prefix: | gpre_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Proceeds From Disgorgement Of Shareholders Short-Swing Profits, Net + References No definition available. + Details
Name: | gpre_ProceedsFromDisgorgementOfShareholdersShortSwingProfitsNet
Namespace Prefix: | gpre_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Share Of Equity Method Investees Other Comprehensive Income Arising During The Period + References No definition available. + Details
Name: | gpre_ShareOfEquityMethodInvesteesOtherComprehensiveIncomeArisingDuringPeriod
Namespace Prefix: | gpre_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Number of shares issued during the period related to restricted and other stock awards, excluding options, net of any shares forfeited. + References No definition available. + Details
Name: | gpre_StockIssuedDuringPeriodSharesRestrictedAndOtherStockAwardNetOfForfeitures
Namespace Prefix: | gpre_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | duration

X
- Definition Stockholders equity [lineitems] + References No definition available. + Details
Name: | gpre_StockholdersEquityLineItems
Namespace Prefix: | gpre_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Adjustment to additional paid in capital resulting from the recognition of convertible debt instruments as two separate components - a debt component and an equity component. This bifurcation may result in a basis difference associated with the liability component that represents a temporary difference for purposes of applying accounting for income taxes. The initial recognition of deferred taxes for the tax effect of that temporary difference is as an adjustment to additional paid in capital. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 470 -SubTopic 20 -Section 25 -Paragraph 22 -URI http://asc.fasb.org/extlink&oid=51819886&loc=SL6014347-161799 + Details
Name: | us-gaap_AdjustmentsToAdditionalPaidInCapitalEquityComponentOfConvertibleDebt
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Amount of increase to additional paid-in capital (APIC) for recognition of cost for award under share-based payment arrangement. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 20 -Section 55 -Paragraph 12 -URI http://asc.fasb.org/extlink&oid=118258462&loc=d3e11149-113907 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=116856206&loc=d3e5047-113901 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 20 -Section 55 -Paragraph 13 -URI http://asc.fasb.org/extlink&oid=118258462&loc=d3e11178-113907 Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 35 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=116855982&loc=d3e4534-113899 + Details
Name: | us-gaap_AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Contractual interest rate for funds borrowed, under the debt agreement. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.22(a)(1)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
Name: | us-gaap_DebtInstrumentInterestRateStatedPercentage
Namespace Prefix: | us-gaap_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | instant

X
- Definition Amount of paid and unpaid cash dividends declared for classes of stock, for example, but not limited to, common and preferred. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 405 -Section 45 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6957935&loc=d3e64057-112817 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.3-04) -URI http://asc.fasb.org/extlink&oid=27012166&loc=d3e187085-122770 + Details
Name: | us-gaap_DividendsCash
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Decrease in noncontrolling interest balance from payment of dividends or other distributions by the non-wholly owned subsidiary or partially owned entity, included in the consolidation of the parent entity, to the noncontrolling interest holders. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.3-04) -URI http://asc.fasb.org/extlink&oid=27012166&loc=d3e187085-122770 + Details
Name: | us-gaap_MinorityInterestDecreaseFromDistributionsToNoncontrollingInterestHolders
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Amount of increase in noncontrolling interest from sale of a portion of the parent's controlling interest. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 810 -SubTopic 10 -Section 50 -Paragraph 1A -Subparagraph (c)(2) -URI http://asc.fasb.org/extlink&oid=109239629&loc=SL4573702-111684 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section S99 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=27012166&loc=d3e187085-122770 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 810 -SubTopic 10 -Section 45 -Paragraph 23 -URI http://asc.fasb.org/extlink&oid=108774443&loc=SL4569655-111683 + Details
Name: | us-gaap_NoncontrollingInterestIncreaseFromSaleOfParentEquityInterest
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Amount after tax, before reclassification adjustments of other comprehensive income (loss). + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 14A -URI http://asc.fasb.org/extlink&oid=118930883&loc=SL7669686-108580 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 55 -Paragraph 15 -URI http://asc.fasb.org/extlink&oid=118951672&loc=d3e1436-108581 + Details
Name: | us-gaap_OtherComprehensiveIncomeLossBeforeReclassificationsNetOfTax
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition The consolidated profit or loss for the period, net of income taxes, including the portion attributable to the noncontrolling interest. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 1A -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=118930883&loc=SL7669619-108580 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 810 -SubTopic 10 -Section 50 -Paragraph 1A -Subparagraph (a)(1) -URI http://asc.fasb.org/extlink&oid=109239629&loc=SL4573702-111684 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 1B -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=118930883&loc=SL7669625-108580 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 810 -SubTopic 10 -Section 50 -Paragraph 1A -Subparagraph (c)(1) -URI http://asc.fasb.org/extlink&oid=109239629&loc=SL4573702-111684 Reference 5: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 22 -URI http://asc.fasb.org/extlink&oid=115929826&loc=d3e8736-108599 Reference 6: http://www.xbrl.org/2003/role/exampleRef -Publisher FASB -Name Accounting Standards Codification -Topic 810 -SubTopic 10 -Section 55 -Paragraph 4J -URI http://asc.fasb.org/extlink&oid=116874947&loc=SL4591551-111686 Reference 7: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=118932676&loc=d3e3000-108585 Reference 8: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 810 -SubTopic 10 -Section 45 -Paragraph 19 -URI http://asc.fasb.org/extlink&oid=108774443&loc=SL4569616-111683 Reference 9: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 32 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=115929826&loc=d3e8933-108599 Reference 10: http://www.xbrl.org/2003/role/exampleRef -Publisher FASB -Name Accounting Standards Codification -Topic 810 -SubTopic 10 -Section 55 -Paragraph 4K -URI http://asc.fasb.org/extlink&oid=116874947&loc=SL4591552-111686 + Details
Name: | us-gaap_ProfitLoss
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Amount after tax of reclassification adjustments of other comprehensive income (loss). + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 17B -URI http://asc.fasb.org/extlink&oid=118930883&loc=SL34724394-108580 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 14A -URI http://asc.fasb.org/extlink&oid=118930883&loc=SL7669686-108580 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 55 -Paragraph 15 -URI http://asc.fasb.org/extlink&oid=118951672&loc=d3e1436-108581 + Details
Name: | us-gaap_ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodNetOfTax
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Number of shares issued which are neither cancelled nor held in the treasury. + References No definition available. + Details
Name: | us-gaap_SharesOutstanding
Namespace Prefix: | us-gaap_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | instant

X
- Definition The gross value of stock issued during the period upon the conversion of convertible securities. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=109259400&loc=d3e21463-112644 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.3-04) -URI http://asc.fasb.org/extlink&oid=27012166&loc=d3e187085-122770 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.29-31) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
Name: | us-gaap_StockIssuedDuringPeriodValueConversionOfConvertibleSecurities
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Amount of stockholders' equity (deficit), net of receivables from officers, directors, owners, and affiliates of the entity, attributable to both the parent and noncontrolling interests. Amount excludes temporary equity. Alternate caption for the concept is permanent equity. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 810 -SubTopic 10 -Section 45 -Paragraph 16 -URI http://asc.fasb.org/extlink&oid=108774443&loc=SL4568740-111683 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 810 -SubTopic 10 -Section 55 -Paragraph 4I -URI http://asc.fasb.org/extlink&oid=116874947&loc=SL4590271-111686 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 810 -SubTopic 10 -Section 45 -Paragraph 15 -URI http://asc.fasb.org/extlink&oid=108774443&loc=SL4568447-111683 + Details
Name: | us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Number of shares that have been repurchased during the period and are being held in treasury. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=109259400&loc=d3e21463-112644 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.3-04) -URI http://asc.fasb.org/extlink&oid=27012166&loc=d3e187085-122770 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(29)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
Name: | us-gaap_TreasuryStockSharesAcquired
Namespace Prefix: | us-gaap_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | duration

X
- Definition Equity impact of the cost of common and preferred stock that were repurchased during the period. Recorded using the cost method. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=109259400&loc=d3e21463-112644 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 30 -Section 45 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6405813&loc=d3e23239-112655 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.3-04) -URI http://asc.fasb.org/extlink&oid=27012166&loc=d3e187085-122770 + Details
Name: | us-gaap_TreasuryStockValueAcquiredCostMethod
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Details
Name: | us-gaap_StatementEquityComponentsAxis=us-gaap_CommonStockMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_StatementEquityComponentsAxis=us-gaap_AdditionalPaidInCapitalMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_StatementEquityComponentsAxis=us-gaap_RetainedEarningsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_StatementEquityComponentsAxis=us-gaap_AccumulatedOtherComprehensiveIncomeMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_StatementEquityComponentsAxis=us-gaap_TreasuryStockMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_StatementEquityComponentsAxis=us-gaap_ParentMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_StatementEquityComponentsAxis=us-gaap_NoncontrollingInterestMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DebtInstrumentAxis=gpre_ConvertibleNotes3.25Due2019Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_StatementBusinessSegmentsAxis=us-gaap_CorporateMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_LongtermDebtTypeAxis=us-gaap_ConvertibleNotesPayableMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DebtInstrumentAxis=gpre_FourPercentConvertibleNotesDue2024Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |