XML 73 R61.htm IDEA: XBRL DOCUMENT
v3.10.0.1

Segment Information (Operations By Lines Of Business) (Details) - USD ($) | 3 Months Ended | 12 Months Ended
--- | --- | ---
Sep. 29, 2018 | Jun. 30, 2018 | Mar. 31, 2018 | Dec. 30, 2017 | Sep. 30, 2017 | Jun. 24, 2017 | Mar. 25, 2017 | Dec. 24, 2016 | Sep. 29, 2018 | Sep. 30, 2017 | Sep. 24, 2016
Segment Reporting Information By Segment [Line Items] |  |  |  |  |  |  |  |  |  |  |
Total revenues from unaffiliated customers | $ 1,059,688,000 | $ 1,034,769,000 | $ 984,562,000 | $ 1,013,786,000 | $ 1,089,392,000 | $ 984,398,000 | $ 946,152,000 | $ 982,758,000 | $ 4,092,804,877 | $ 4,002,699,727 | $ 3,794,977,406
Total income from operations |  |  |  |  |  |  |  |  | 124,823,641 | 127,912,744 | 128,601,998
Other income, net |  |  |  |  |  |  |  |  | 3,064,690 | 3,806,869 | 2,362,772
Interest expense |  |  |  |  |  |  |  |  | 47,569,703 | 47,458,033 | 46,330,304
Income before income taxes |  |  |  |  |  |  |  |  | 80,318,628 | 84,261,580 | 84,634,466
Total assets | 1,824,910,820 |  |  |  | 1,733,305,774 |  |  |  | 1,824,910,820 | 1,733,305,774 | 1,686,478,000
Total capital expenditures |  |  |  |  |  |  |  |  | 150,486,508 | 127,695,650 | 137,642,132
Depreciation and amortization expense |  |  |  |  |  |  |  |  | 113,082,675 | 110,929,378 | 106,587,686
Elimination of intercompany receivable [Member] |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information By Segment [Line Items] |  |  |  |  |  |  |  |  |  |  |
Total assets | (2,378,000) |  |  |  | (2,469,000) |  |  |  | (2,378,000) | (2,469,000) | (2,415,000)
Grocery [Member] |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information By Segment [Line Items] |  |  |  |  |  |  |  |  |  |  |
Total revenues from unaffiliated customers |  |  |  |  |  |  |  |  | 1,413,088,000 | 1,424,891,000 | 1,392,311,000
Non-foods [Member] |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information By Segment [Line Items] |  |  |  |  |  |  |  |  |  |  |
Total revenues from unaffiliated customers |  |  |  |  |  |  |  |  | 874,677,000 | 858,409,000 | 817,161,000
Perishables [Member] |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information By Segment [Line Items] |  |  |  |  |  |  |  |  |  |  |
Total revenues from unaffiliated customers |  |  |  |  |  |  |  |  | 1,078,693,000 | 1,061,560,000 | 1,011,749,000
Gasoline [Member] |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information By Segment [Line Items] |  |  |  |  |  |  |  |  |  |  |
Total revenues from unaffiliated customers |  |  |  |  |  |  |  |  | 604,897,000 | 515,857,000 | 435,578,000
Retail [Member] |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information By Segment [Line Items] |  |  |  |  |  |  |  |  |  |  |
Total revenues from unaffiliated customers |  |  |  |  |  |  |  |  | 3,971,355,000 | 3,860,717,000 | 3,656,799,000
Total income from operations |  |  |  |  |  |  |  |  | 111,165,000 | 112,017,000 | 112,906,000
Total assets | 1,679,301,000 |  |  |  | 1,600,699,000 |  |  |  | 1,679,301,000 | 1,600,699,000 | 1,555,319,000
Total capital expenditures |  |  |  |  |  |  |  |  | 147,851,000 | 125,866,000 | 134,732,000
Depreciation and amortization expense |  |  |  |  |  |  |  |  | 105,564,000 | 103,304,000 | 99,322,000
Other Segment [Member] |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information By Segment [Line Items] |  |  |  |  |  |  |  |  |  |  |
Total revenues from unaffiliated customers |  |  |  |  |  |  |  |  | 121,450,000 | 141,983,000 | 138,178,000
Total income from operations |  |  |  |  |  |  |  |  | 13,659,000 | 15,896,000 | 15,696,000
Total assets | $ 147,988,000 |  |  |  | $ 135,076,000 |  |  |  | 147,988,000 | 135,076,000 | 133,574,000
Total capital expenditures |  |  |  |  |  |  |  |  | 2,636,000 | 1,830,000 | 2,910,000
Depreciation and amortization expense |  |  |  |  |  |  |  |  | $ 7,519,000 | $ 7,625,000 | $ 7,266,000

X
- Definition Segment Reporting Information By Segment [Line Items] + References No definition available. + Details
Name: | imkta_SegmentReportingInformationBySegmentLineItems
Namespace Prefix: | imkta_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Sum of the carrying amounts as of the balance sheet date of all assets that are recognized. Assets are probable future economic benefits obtained or controlled by an entity as a result of past transactions or events. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-03(a)(12)) -URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03(11)) -URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878 + Details
Name: | us-gaap_Assets
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition The current period expense charged against earnings on long-lived, physical assets not used in production, and which are not intended for resale, to allocate or recognize the cost of such assets over their useful lives; or to record the reduction in book value of an intangible asset over the benefit period of such asset; or to reflect consumption during the period of an asset that is not used in production. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 360 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (a) -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 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=98514028&loc=d3e3602-108585 + Details
Name: | us-gaap_DepreciationAndAmortization
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Amount of income (loss) from continuing operations before deduction of income tax expense (benefit) and income (loss) attributable to noncontrolling interest, and addition of income (loss) from equity method investments. + References Reference 1: 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.(h)(1)(i)) -URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e23780-122690 + Details
Name: | us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Amount of the cost of borrowed funds accounted for as interest expense. + 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 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 835 -SubTopic 30 -Section 45 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=64930785&loc=d3e28555-108399 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 225 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-04.9) -URI http://asc.fasb.org/extlink&oid=6879574&loc=d3e536633-122882 + Details
Name: | us-gaap_InterestExpense
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition The net result for the period of deducting operating expenses from operating revenues. + References No definition available. + Details
Name: | us-gaap_OperatingIncomeLoss
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Amount of income (expense) related to nonoperating activities, classified as other. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 225 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03.9) -URI http://asc.fasb.org/extlink&oid=63488584&loc=d3e20235-122688 + Details
Name: | us-gaap_OtherNonoperatingIncomeExpense
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition The cash outflow associated with the acquisition of long-lived, physical assets that are used in the normal conduct of business to produce goods and services and not intended for resale; includes cash outflows to pay for construction of self-constructed assets. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 13 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=98514028&loc=d3e3213-108585 + Details
Name: | us-gaap_PaymentsToAcquirePropertyPlantAndEquipment
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Aggregate revenue during the period from the sale of goods in the normal course of business, after deducting returns, allowances and discounts. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 225 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03.1(a)) -URI http://asc.fasb.org/extlink&oid=63488584&loc=d3e20235-122688 + Details
Name: | us-gaap_SalesRevenueGoodsNet
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Details
Name: | us-gaap_ConsolidationItemsAxis=us-gaap_IntersegmentEliminationMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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

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

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

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

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

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