Del Taco Restaurants, Inc.

$ Overview Financials Valuation SEC Filings Company Website

2022 Q1 Form 10-K Financial Statement

#000158558322000009 Filed on March 08, 2022

Income Statement

Concept	2022 Q1	2021 Q4	2021

Balance Sheet

Concept	2022 Q1	2021 Q4	2021
SHORT-TERM ASSETS
Cash & Short-Term Investments
YoY Change
Cash & Equivalents		$5.078M
Short-Term Investments
Other Short-Term Assets
YoY Change
Inventory		$3.091M
Prepaid Expenses
Receivables
Other Receivables
Total Short-Term Assets		$15.56M
YoY Change		-21.18%
LONG-TERM ASSETS
Property, Plant & Equipment		$145.3M
YoY Change		-0.93%
Goodwill		$109.0M
YoY Change		0.0%
Intangibles		$208.4M
YoY Change		0.0%
Long-Term Investments
YoY Change
Other Assets		$7.107M
YoY Change		52.77%
Total Long-Term Assets		$712.3M
YoY Change		-2.1%
TOTAL ASSETS
Total Short-Term Assets		$15.56M
Total Long-Term Assets		$712.3M
Total Assets		$727.9M
YoY Change		-2.6%
SHORT-TERM LIABILITIES
YoY Change
Accounts Payable		$20.01M
YoY Change		7.12%
Accrued Expenses
YoY Change
Deferred Revenue
YoY Change
Short-Term Debt
YoY Change
Long-Term Debt Due
YoY Change
Total Short-Term Liabilities		$95.45M
YoY Change		9.79%
LONG-TERM LIABILITIES
Long-Term Debt
YoY Change
Other Long-Term Liabilities		$16.84M
YoY Change		-14.79%
Total Long-Term Liabilities		$16.84M
YoY Change		-14.79%
TOTAL LIABILITIES
Total Short-Term Liabilities		$95.45M
Total Long-Term Liabilities		$16.84M
Total Liabilities		$518.1M
YoY Change		-3.07%
SHAREHOLDERS EQUITY
Retained Earnings		-$115.2M
YoY Change		-4.73%
Common Stock		$4.000K
YoY Change		0.0%
Preferred Stock
YoY Change
Treasury Stock (at cost)
YoY Change
Treasury Stock Shares
Shareholders Equity		$209.7M
YoY Change
Total Liabilities & Shareholders Equity		$727.9M
YoY Change		-2.6%

Cashflow Statement

Concept	2022 Q1	2021 Q4	2021

Facts In Submission

Frame	Concept Type	Concept / XBRL Key	Value	Unit
CY2021	dei	Amendment Flag AmendmentFlag	false
CY2021	dei	Document Period End Date DocumentPeriodEndDate	2021-12-28
CY2021	dei	Document Fiscal Year Focus DocumentFiscalYearFocus	2021
CY2021	dei	Document Fiscal Period Focus DocumentFiscalPeriodFocus	FY
CY2021	dei	Entity Central Index Key EntityCentralIndexKey	0001585583
CY2021	dei	Current Fiscal Year End Date CurrentFiscalYearEndDate	--12-28
	taco	Partnership Monthly Rental Income PartnershipMonthlyRentalIncome	1400000	USD
CY2021Q4	us-gaap	Revenue Remaining Performance Obligation Expected Timing Of Satisfaction Period1 RevenueRemainingPerformanceObligationExpectedTimingOfSatisfactionPeriod1	P1Y
CY2021Q4	taco	Common Stock Shares Converted Right To Cash Received Per Share CommonStockSharesConvertedRightToCashReceivedPerShare	12.51
CY2021	dei	Auditor Name AuditorName	Ernst & Young LLP
CY2021Q4	us-gaap	Revenue Remaining Performance Obligation Expected Timing Of Satisfaction Period1 RevenueRemainingPerformanceObligationExpectedTimingOfSatisfactionPeriod1	P1Y
CY2021Q4	us-gaap	Revenue Remaining Performance Obligation Expected Timing Of Satisfaction Period1 RevenueRemainingPerformanceObligationExpectedTimingOfSatisfactionPeriod1	P1Y
CY2021Q4	us-gaap	Revenue Remaining Performance Obligation Expected Timing Of Satisfaction Period1 RevenueRemainingPerformanceObligationExpectedTimingOfSatisfactionPeriod1	P1Y
CY2021Q4	us-gaap	Revenue Remaining Performance Obligation Expected Timing Of Satisfaction Period1 RevenueRemainingPerformanceObligationExpectedTimingOfSatisfactionPeriod1	P1Y
CY2021Q4	us-gaap	Revenue Remaining Performance Obligation Expected Timing Of Satisfaction Period1 RevenueRemainingPerformanceObligationExpectedTimingOfSatisfactionPeriod1
CY2020Q4	us-gaap	Finance Lease Right Of Use Asset Statement Of Financial Position Extensible List FinanceLeaseRightOfUseAssetStatementOfFinancialPositionExtensibleList	http://fasb.org/us-gaap/2021-01-31#PropertyPlantAndEquipmentNet
CY2021Q4	us-gaap	Finance Lease Right Of Use Asset Statement Of Financial Position Extensible List FinanceLeaseRightOfUseAssetStatementOfFinancialPositionExtensibleList	http://fasb.org/us-gaap/2021-01-31#PropertyPlantAndEquipmentNet
CY2021Q4	us-gaap	Finance Lease Liability Current Statement Of Financial Position Extensible List FinanceLeaseLiabilityCurrentStatementOfFinancialPositionExtensibleList	http://www.deltaco.com/20211228#LongTermDebtAndCapitalLeaseObligationsAndDeemedLandlordFinancingLiabilitiesCurrent
CY2020Q4	us-gaap	Finance Lease Liability Current Statement Of Financial Position Extensible List FinanceLeaseLiabilityCurrentStatementOfFinancialPositionExtensibleList	http://www.deltaco.com/20211228#LongTermDebtAndCapitalLeaseObligationsAndDeemedLandlordFinancingLiabilitiesCurrent
CY2020Q4	us-gaap	Finance Lease Liability Noncurrent Statement Of Financial Position Extensible List FinanceLeaseLiabilityNoncurrentStatementOfFinancialPositionExtensibleList	http://www.deltaco.com/20211228#LongTermDebtAndCapitalLeaseObligationsAndDeemedLandlordFinancingLiabilitiesNoncurrent
CY2021Q4	us-gaap	Finance Lease Liability Noncurrent Statement Of Financial Position Extensible List FinanceLeaseLiabilityNoncurrentStatementOfFinancialPositionExtensibleList	http://www.deltaco.com/20211228#LongTermDebtAndCapitalLeaseObligationsAndDeemedLandlordFinancingLiabilitiesNoncurrent
CY2021	dei	Document Type DocumentType	10-K
CY2021	dei	Document Annual Report DocumentAnnualReport	true
CY2021	dei	Document Transition Report DocumentTransitionReport	false
CY2021	dei	Entity File Number EntityFileNumber	001-36197
CY2021	dei	Entity Registrant Name EntityRegistrantName	DEL TACO RESTAURANTS, INC.
CY2021	dei	Entity Incorporation State Country Code EntityIncorporationStateCountryCode	DE
CY2021	dei	Entity Tax Identification Number EntityTaxIdentificationNumber	46-3340980
CY2021	dei	Entity Address Address Line1 EntityAddressAddressLine1	25521 Commercentre Drive
CY2021	dei	Entity Address City Or Town EntityAddressCityOrTown	Lake Forest,
CY2021	dei	Entity Address State Or Province EntityAddressStateOrProvince	CA
CY2021	dei	Entity Address Postal Zip Code EntityAddressPostalZipCode	92630
CY2021	dei	City Area Code CityAreaCode	(949)
CY2021	dei	Local Phone Number LocalPhoneNumber	462-9300
CY2021	dei	Security12b Title Security12bTitle	Common Stock, $0.0001 Par Value
CY2021	dei	Trading Symbol TradingSymbol	TACO
CY2021	dei	Security Exchange Name SecurityExchangeName	NASDAQ
CY2021	dei	Entity Well Known Seasoned Issuer EntityWellKnownSeasonedIssuer	No
CY2021	dei	Entity Voluntary Filers EntityVoluntaryFilers	No
CY2021	dei	Entity Current Reporting Status EntityCurrentReportingStatus	Yes
CY2021	dei	Entity Interactive Data Current EntityInteractiveDataCurrent	Yes
CY2021	dei	Entity Filer Category EntityFilerCategory	Accelerated Filer
CY2021	dei	Entity Small Business EntitySmallBusiness	false
CY2021	dei	Entity Emerging Growth Company EntityEmergingGrowthCompany	false
CY2021	dei	Icfr Auditor Attestation Flag IcfrAuditorAttestationFlag	true
CY2021	dei	Entity Shell Company EntityShellCompany	false
CY2021Q2	dei	Entity Public Float EntityPublicFloat	355000000	USD
CY2022Q1	dei	Entity Common Stock Shares Outstanding EntityCommonStockSharesOutstanding	36442232	shares
CY2021Q4	taco	Number Of Restaurants California NumberOfRestaurantsCalifornia	368	restaurants
CY2021	dei	Auditor Firm AuditorFirmId	42
CY2021Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	5078000	USD
CY2020Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	7912000	USD
CY2021Q4	us-gaap	Accounts And Other Receivables Net Current AccountsAndOtherReceivablesNetCurrent	4430000	USD
CY2020Q4	us-gaap	Accounts And Other Receivables Net Current AccountsAndOtherReceivablesNetCurrent	5463000	USD
CY2021Q4	us-gaap	Inventory Net InventoryNet	3091000	USD
CY2020Q4	us-gaap	Inventory Net InventoryNet	2799000	USD
CY2021Q4	us-gaap	Prepaid Expense And Other Assets Current PrepaidExpenseAndOtherAssetsCurrent	2965000	USD
CY2020Q4	us-gaap	Prepaid Expense And Other Assets Current PrepaidExpenseAndOtherAssetsCurrent	2078000	USD
CY2021Q4	us-gaap	Assets Held For Sale Not Part Of Disposal Group Current AssetsHeldForSaleNotPartOfDisposalGroupCurrent	0	USD
CY2020Q4	us-gaap	Assets Held For Sale Not Part Of Disposal Group Current AssetsHeldForSaleNotPartOfDisposalGroupCurrent	1495000	USD
CY2021Q4	us-gaap	Assets Current AssetsCurrent	15564000	USD
CY2020Q4	us-gaap	Assets Current AssetsCurrent	19747000	USD
CY2021Q4	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	145338000	USD
CY2020Q4	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	146706000	USD
CY2021Q4	us-gaap	Operating Lease Right Of Use Asset OperatingLeaseRightOfUseAsset	233960000	USD
CY2020Q4	us-gaap	Operating Lease Right Of Use Asset OperatingLeaseRightOfUseAsset	249071000	USD
CY2021Q4	us-gaap	Goodwill Goodwill	108979000	USD
CY2020Q4	us-gaap	Goodwill Goodwill	108979000	USD
CY2021Q4	us-gaap	Indefinite Lived Trademarks IndefiniteLivedTrademarks	208400000	USD
CY2020Q4	us-gaap	Indefinite Lived Trademarks IndefiniteLivedTrademarks	208400000	USD
CY2021Q4	us-gaap	Finite Lived Intangible Assets Net FiniteLivedIntangibleAssetsNet	8508000	USD
CY2020Q4	us-gaap	Finite Lived Intangible Assets Net FiniteLivedIntangibleAssetsNet	9754000	USD
CY2021Q4	us-gaap	Other Assets Noncurrent OtherAssetsNoncurrent	7107000	USD
CY2020Q4	us-gaap	Other Assets Noncurrent OtherAssetsNoncurrent	4652000	USD
CY2021Q4	us-gaap	Assets Assets	727856000	USD
CY2020Q4	us-gaap	Assets Assets	747309000	USD
CY2021Q4	us-gaap	Accounts Payable Current AccountsPayableCurrent	20013000	USD
CY2020Q4	us-gaap	Accounts Payable Current AccountsPayableCurrent	18683000	USD
CY2021Q4	us-gaap	Other Accrued Liabilities Current OtherAccruedLiabilitiesCurrent	51071000	USD
CY2020Q4	us-gaap	Other Accrued Liabilities Current OtherAccruedLiabilitiesCurrent	45413000	USD
CY2021Q4	taco	Long Term Debt And Capital Lease Obligations And Deemed Landlord Financing Liabilities Current LongTermDebtAndCapitalLeaseObligationsAndDeemedLandlordFinancingLiabilitiesCurrent	35000	USD
CY2020Q4	taco	Long Term Debt And Capital Lease Obligations And Deemed Landlord Financing Liabilities Current LongTermDebtAndCapitalLeaseObligationsAndDeemedLandlordFinancingLiabilitiesCurrent	190000	USD
CY2021Q4	us-gaap	Operating Lease Liability Current OperatingLeaseLiabilityCurrent	24328000	USD
CY2020Q4	us-gaap	Operating Lease Liability Current OperatingLeaseLiabilityCurrent	22648000	USD
CY2021Q4	us-gaap	Liabilities Current LiabilitiesCurrent	95447000	USD
CY2020Q4	us-gaap	Liabilities Current LiabilitiesCurrent	86934000	USD
CY2021Q4	taco	Long Term Debt And Capital Lease Obligations And Deemed Landlord Financing Liabilities Noncurrent LongTermDebtAndCapitalLeaseObligationsAndDeemedLandlordFinancingLiabilitiesNoncurrent	106649000	USD
CY2020Q4	taco	Long Term Debt And Capital Lease Obligations And Deemed Landlord Financing Liabilities Noncurrent LongTermDebtAndCapitalLeaseObligationsAndDeemedLandlordFinancingLiabilitiesNoncurrent	114418000	USD
CY2021Q4	us-gaap	Operating Lease Liability Noncurrent OperatingLeaseLiabilityNoncurrent	239476000	USD
CY2020Q4	us-gaap	Operating Lease Liability Noncurrent OperatingLeaseLiabilityNoncurrent	251958000	USD
CY2021Q4	us-gaap	Deferred Income Tax Liabilities Net DeferredIncomeTaxLiabilitiesNet	59726000	USD
CY2020Q4	us-gaap	Deferred Income Tax Liabilities Net DeferredIncomeTaxLiabilitiesNet	61485000	USD
CY2021Q4	us-gaap	Other Liabilities Noncurrent OtherLiabilitiesNoncurrent	16838000	USD
CY2020Q4	us-gaap	Other Liabilities Noncurrent OtherLiabilitiesNoncurrent	19760000	USD
CY2021Q4	us-gaap	Liabilities Liabilities	518136000	USD
CY2020Q4	us-gaap	Liabilities Liabilities	534555000	USD
CY2021Q4	us-gaap	Commitments And Contingencies CommitmentsAndContingencies		USD
CY2020Q4	us-gaap	Commitments And Contingencies CommitmentsAndContingencies		USD
CY2020Q4	us-gaap	Preferred Stock Par Or Stated Value Per Share PreferredStockParOrStatedValuePerShare	0.0001
CY2021Q4	us-gaap	Preferred Stock Par Or Stated Value Per Share PreferredStockParOrStatedValuePerShare	0.0001
CY2020Q4	us-gaap	Preferred Stock Shares Authorized PreferredStockSharesAuthorized	1000000	shares
CY2021Q4	us-gaap	Preferred Stock Shares Authorized PreferredStockSharesAuthorized	1000000	shares
CY2021Q4	us-gaap	Preferred Stock Shares Issued PreferredStockSharesIssued	0	shares
CY2021Q4	us-gaap	Preferred Stock Shares Outstanding PreferredStockSharesOutstanding	0	shares
CY2020Q4	us-gaap	Preferred Stock Shares Issued PreferredStockSharesIssued	0	shares
CY2020Q4	us-gaap	Preferred Stock Shares Outstanding PreferredStockSharesOutstanding	0	shares
CY2021Q4	us-gaap	Preferred Stock Value PreferredStockValue	0	USD
CY2020Q4	us-gaap	Preferred Stock Value PreferredStockValue	0	USD
CY2020Q4	us-gaap	Common Stock Par Or Stated Value Per Share CommonStockParOrStatedValuePerShare	0.0001
CY2021Q4	us-gaap	Common Stock Par Or Stated Value Per Share CommonStockParOrStatedValuePerShare	0.0001
CY2020Q4	us-gaap	Common Stock Shares Authorized CommonStockSharesAuthorized	400000000	shares
CY2021Q4	us-gaap	Common Stock Shares Authorized CommonStockSharesAuthorized	400000000	shares
CY2021Q4	us-gaap	Common Stock Shares Outstanding CommonStockSharesOutstanding	36397054	shares
CY2021Q4	us-gaap	Common Stock Shares Issued CommonStockSharesIssued	36397054	shares
CY2020Q4	us-gaap	Common Stock Shares Issued CommonStockSharesIssued	36828237	shares
CY2020Q4	us-gaap	Common Stock Shares Outstanding CommonStockSharesOutstanding	36828237	shares
CY2021Q4	us-gaap	Common Stock Value CommonStockValue	4000	USD
CY2020Q4	us-gaap	Common Stock Value CommonStockValue	4000	USD
CY2021Q4	us-gaap	Additional Paid In Capital AdditionalPaidInCapital	324957000	USD
CY2020Q4	us-gaap	Additional Paid In Capital AdditionalPaidInCapital	333712000	USD
CY2021Q4	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	0	USD
CY2020Q4	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	0	USD
CY2021Q4	us-gaap	Retained Earnings Accumulated Deficit RetainedEarningsAccumulatedDeficit	-115241000	USD
CY2020Q4	us-gaap	Retained Earnings Accumulated Deficit RetainedEarningsAccumulatedDeficit	-120962000	USD
CY2021Q4	us-gaap	Stockholders Equity StockholdersEquity	209720000	USD
CY2020Q4	us-gaap	Stockholders Equity StockholdersEquity	212754000	USD
CY2021Q4	us-gaap	Liabilities And Stockholders Equity LiabilitiesAndStockholdersEquity	727856000	USD
CY2020Q4	us-gaap	Liabilities And Stockholders Equity LiabilitiesAndStockholdersEquity	747309000	USD
CY2021	us-gaap	Revenues Revenues	527355000	USD
CY2020	us-gaap	Revenues Revenues	491883000	USD
CY2019	us-gaap	Revenues Revenues	512951000	USD
CY2021	us-gaap	Labor And Related Expense LaborAndRelatedExpense	159915000	USD
CY2020	us-gaap	Labor And Related Expense LaborAndRelatedExpense	148183000	USD
CY2019	us-gaap	Labor And Related Expense LaborAndRelatedExpense	156095000	USD
CY2021	us-gaap	Other Cost And Expense Operating OtherCostAndExpenseOperating	112862000	USD
CY2020	us-gaap	Other Cost And Expense Operating OtherCostAndExpenseOperating	105666000	USD
CY2019	us-gaap	Other Cost And Expense Operating OtherCostAndExpenseOperating	105376000	USD
CY2021	us-gaap	General And Administrative Expense GeneralAndAdministrativeExpense	51670000	USD
CY2020	us-gaap	General And Administrative Expense GeneralAndAdministrativeExpense	43996000	USD
CY2019	us-gaap	General And Administrative Expense GeneralAndAdministrativeExpense	43877000	USD
CY2021	taco	Franchise Advertising Expense FranchiseAdvertisingExpense	17647000	USD
CY2020	taco	Franchise Advertising Expense FranchiseAdvertisingExpense	15116000	USD
CY2019	taco	Franchise Advertising Expense FranchiseAdvertisingExpense	14516000	USD
CY2021	us-gaap	Depreciation And Amortization DepreciationAndAmortization	26203000	USD
CY2020	us-gaap	Depreciation And Amortization DepreciationAndAmortization	26599000	USD
CY2019	us-gaap	Depreciation And Amortization DepreciationAndAmortization	25488000	USD
CY2021	us-gaap	Cost Of Other Property Operating Expense CostOfOtherPropertyOperatingExpense	9826000	USD
CY2020	us-gaap	Cost Of Other Property Operating Expense CostOfOtherPropertyOperatingExpense	8083000	USD
CY2019	us-gaap	Cost Of Other Property Operating Expense CostOfOtherPropertyOperatingExpense	4463000	USD
CY2021	us-gaap	Pre Opening Costs PreOpeningCosts	682000	USD
CY2020	us-gaap	Pre Opening Costs PreOpeningCosts	471000	USD
CY2019	us-gaap	Pre Opening Costs PreOpeningCosts	1650000	USD
CY2021	us-gaap	Goodwill Impairment Loss GoodwillImpairmentLoss	0	USD
CY2020	us-gaap	Goodwill Impairment Loss GoodwillImpairmentLoss	87277000	USD
CY2019	us-gaap	Goodwill Impairment Loss GoodwillImpairmentLoss	118250000	USD
CY2021	us-gaap	Impairment Of Intangible Assets Indefinitelived Excluding Goodwill ImpairmentOfIntangibleAssetsIndefinitelivedExcludingGoodwill	0	USD
CY2020	us-gaap	Impairment Of Intangible Assets Indefinitelived Excluding Goodwill ImpairmentOfIntangibleAssetsIndefinitelivedExcludingGoodwill	11900000	USD
CY2019	us-gaap	Impairment Of Intangible Assets Indefinitelived Excluding Goodwill ImpairmentOfIntangibleAssetsIndefinitelivedExcludingGoodwill	0	USD
CY2021	us-gaap	Impairment Of Long Lived Assets Held For Use ImpairmentOfLongLivedAssetsHeldForUse	9115000	USD
CY2020	us-gaap	Impairment Of Long Lived Assets Held For Use ImpairmentOfLongLivedAssetsHeldForUse	8287000	USD
CY2019	us-gaap	Impairment Of Long Lived Assets Held For Use ImpairmentOfLongLivedAssetsHeldForUse	7159000	USD
CY2021	taco	Restaurant Closure Charges Net RestaurantClosureChargesNet	2365000	USD
CY2020	taco	Restaurant Closure Charges Net RestaurantClosureChargesNet	2048000	USD
CY2019	taco	Restaurant Closure Charges Net RestaurantClosureChargesNet	2961000	USD
CY2021	us-gaap	Gain Loss On Disposition Of Assets1 GainLossOnDispositionOfAssets1	-893000	USD
CY2020	us-gaap	Gain Loss On Disposition Of Assets1 GainLossOnDispositionOfAssets1	-401000	USD
CY2019	us-gaap	Gain Loss On Disposition Of Assets1 GainLossOnDispositionOfAssets1	-9448000	USD
CY2021	us-gaap	Operating Costs And Expenses OperatingCostsAndExpenses	515307000	USD
CY2020	us-gaap	Operating Costs And Expenses OperatingCostsAndExpenses	578872000	USD
CY2019	us-gaap	Operating Costs And Expenses OperatingCostsAndExpenses	619994000	USD
CY2021	us-gaap	Operating Income Loss OperatingIncomeLoss	12048000	USD
CY2020	us-gaap	Operating Income Loss OperatingIncomeLoss	-86989000	USD
CY2019	us-gaap	Operating Income Loss OperatingIncomeLoss	-107043000	USD
CY2021	us-gaap	Interest Expense InterestExpense	2893000	USD
CY2020	us-gaap	Interest Expense InterestExpense	4811000	USD
CY2019	us-gaap	Interest Expense InterestExpense	7235000	USD
CY2021	taco	Other Income Expense Transaction Costs OtherIncomeExpenseTransactionCosts	2071000	USD
CY2020	taco	Other Income Expense Transaction Costs OtherIncomeExpenseTransactionCosts	0	USD
CY2019	taco	Other Income Expense Transaction Costs OtherIncomeExpenseTransactionCosts	0	USD
CY2021	us-gaap	Other Nonoperating Income OtherNonoperatingIncome	1122000	USD
CY2020	us-gaap	Other Nonoperating Income OtherNonoperatingIncome	0	USD
CY2019	us-gaap	Other Nonoperating Income OtherNonoperatingIncome	364000	USD
CY2021	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	-3842000	USD
CY2020	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	-4811000	USD
CY2019	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	-6871000	USD
CY2021	us-gaap	Income Loss Attributable To Parent IncomeLossAttributableToParent	8206000	USD
CY2020	us-gaap	Income Loss Attributable To Parent IncomeLossAttributableToParent	-91800000	USD
CY2019	us-gaap	Income Loss Attributable To Parent IncomeLossAttributableToParent	-113914000	USD
CY2021	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	2485000	USD
CY2020	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	-2062000	USD
CY2019	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	4371000	USD
CY2021	us-gaap	Net Income Loss NetIncomeLoss	5721000	USD
CY2020	us-gaap	Net Income Loss NetIncomeLoss	-89738000	USD
CY2019	us-gaap	Net Income Loss NetIncomeLoss	-118285000	USD
CY2021	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss Before Reclassification After Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossBeforeReclassificationAfterTax	0	USD
CY2020	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss Before Reclassification After Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossBeforeReclassificationAfterTax	0	USD
CY2019	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss Before Reclassification After Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossBeforeReclassificationAfterTax	-364000	USD
CY2021	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss Reclassification After Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossReclassificationAfterTax	0	USD
CY2020	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss Reclassification After Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossReclassificationAfterTax	52000	USD
CY2019	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss Reclassification After Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossReclassificationAfterTax	132000	USD
CY2021	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	0	USD
CY2020	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	52000	USD
CY2019	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	-232000	USD
CY2021	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	5721000	USD
CY2020	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	-89686000	USD
CY2019	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	-118517000	USD
CY2021	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.16
CY2020	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	-2.41
CY2019	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	-3.20
CY2021	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.15
CY2020	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	-2.41
CY2019	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	-3.20
CY2021	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	36565678	shares
CY2020	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	37161921	shares
CY2019	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	37018445	shares
CY2021	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	36998514	shares
CY2020	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	37161921	shares
CY2019	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	37018445	shares
CY2019Q1	us-gaap	Stockholders Equity StockholdersEquity	422274000	USD
CY2019	us-gaap	Net Income Loss NetIncomeLoss	-118285000	USD
CY2019	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	-232000	USD
CY2019	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	-118517000	USD
CY2019	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	6293000	USD
CY2019	taco	Adjustments To Additional Paid In Capital Issuance Of Vested Restricted Stock Net Of Tax Witholding AdjustmentsToAdditionalPaidInCapitalIssuanceOfVestedRestrictedStockNetOfTaxWitholding	2602000	USD
CY2019	us-gaap	Stock Issued During Period Value Share Based Compensation StockIssuedDuringPeriodValueShareBasedCompensation	120000	USD
CY2019	us-gaap	Stock Repurchased And Retired During Period Value StockRepurchasedAndRetiredDuringPeriodValue	7373000	USD
CY2019Q4	us-gaap	Stockholders Equity StockholdersEquity	302107000	USD
CY2020	us-gaap	Net Income Loss NetIncomeLoss	-89738000	USD
CY2020	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	52000	USD
CY2020	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	-89686000	USD
CY2020	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	5652000	USD
CY2020	taco	Adjustments To Additional Paid In Capital Issuance Of Vested Restricted Stock Net Of Tax Witholding AdjustmentsToAdditionalPaidInCapitalIssuanceOfVestedRestrictedStockNetOfTaxWitholding	999000	USD
CY2020	us-gaap	Stock Repurchased And Retired During Period Value StockRepurchasedAndRetiredDuringPeriodValue	4222000	USD
CY2020	us-gaap	Minority Interest Decrease From Redemptions MinorityInterestDecreaseFromRedemptions	98000	USD
CY2020Q4	us-gaap	Stockholders Equity StockholdersEquity	212754000	USD
CY2021	us-gaap	Net Income Loss NetIncomeLoss	5721000	USD
CY2021	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	5721000	USD
CY2021	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	6461000	USD
CY2021	taco	Adjustments To Additional Paid In Capital Issuance Of Vested Restricted Stock Net Of Tax Witholding AdjustmentsToAdditionalPaidInCapitalIssuanceOfVestedRestrictedStockNetOfTaxWitholding	1895000	USD
CY2021	us-gaap	Stock Issued During Period Value Stock Options Exercised StockIssuedDuringPeriodValueStockOptionsExercised	50000	USD
CY2021	us-gaap	Stock Repurchased And Retired During Period Value StockRepurchasedAndRetiredDuringPeriodValue	7514000	USD
CY2021	us-gaap	Dividends Common Stock Cash DividendsCommonStockCash	5857000	USD
CY2021Q4	us-gaap	Stockholders Equity StockholdersEquity	209720000	USD
CY2021	us-gaap	Net Income Loss NetIncomeLoss	5721000	USD
CY2020	us-gaap	Net Income Loss NetIncomeLoss	-89738000	USD
CY2019	us-gaap	Net Income Loss NetIncomeLoss	-118285000	USD
CY2021	us-gaap	Provision For Doubtful Accounts ProvisionForDoubtfulAccounts	0	USD
CY2020	us-gaap	Provision For Doubtful Accounts ProvisionForDoubtfulAccounts	30000	USD
CY2019	us-gaap	Provision For Doubtful Accounts ProvisionForDoubtfulAccounts	41000	USD
CY2021	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	26203000	USD
CY2020	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	26599000	USD
CY2019	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	25488000	USD
CY2021	us-gaap	Amortization Of Financing Costs AmortizationOfFinancingCosts	266000	USD
CY2020	us-gaap	Amortization Of Financing Costs AmortizationOfFinancingCosts	333000	USD
CY2019	us-gaap	Amortization Of Financing Costs AmortizationOfFinancingCosts	550000	USD
CY2021	taco	Operating Lease Rightof Use Asset Amortization OperatingLeaseRightofUseAssetAmortization	23207000	USD
CY2020	taco	Operating Lease Rightof Use Asset Amortization OperatingLeaseRightofUseAssetAmortization	22035000	USD
CY2019	taco	Operating Lease Rightof Use Asset Amortization OperatingLeaseRightofUseAssetAmortization	21681000	USD
CY2021	us-gaap	Share Based Compensation ShareBasedCompensation	6461000	USD
CY2020	us-gaap	Share Based Compensation ShareBasedCompensation	5652000	USD
CY2019	us-gaap	Share Based Compensation ShareBasedCompensation	6293000	USD
CY2021	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	-1759000	USD
CY2020	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	-8040000	USD
CY2019	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	-583000	USD
CY2021	us-gaap	Gain Loss On Disposition Of Assets1 GainLossOnDispositionOfAssets1	-893000	USD
CY2020	us-gaap	Gain Loss On Disposition Of Assets1 GainLossOnDispositionOfAssets1	-401000	USD
CY2019	us-gaap	Gain Loss On Disposition Of Assets1 GainLossOnDispositionOfAssets1	-9448000	USD
CY2021	us-gaap	Goodwill Impairment Loss GoodwillImpairmentLoss	0	USD
CY2020	us-gaap	Goodwill Impairment Loss GoodwillImpairmentLoss	87277000	USD
CY2019	us-gaap	Goodwill Impairment Loss GoodwillImpairmentLoss	118250000	USD
CY2021	us-gaap	Impairment Of Intangible Assets Indefinitelived Excluding Goodwill ImpairmentOfIntangibleAssetsIndefinitelivedExcludingGoodwill	0	USD
CY2020	us-gaap	Impairment Of Intangible Assets Indefinitelived Excluding Goodwill ImpairmentOfIntangibleAssetsIndefinitelivedExcludingGoodwill	11900000	USD
CY2019	us-gaap	Impairment Of Intangible Assets Indefinitelived Excluding Goodwill ImpairmentOfIntangibleAssetsIndefinitelivedExcludingGoodwill	0	USD
CY2021	us-gaap	Impairment Of Long Lived Assets Held For Use ImpairmentOfLongLivedAssetsHeldForUse	9115000	USD
CY2020	us-gaap	Impairment Of Long Lived Assets Held For Use ImpairmentOfLongLivedAssetsHeldForUse	8287000	USD
CY2019	us-gaap	Impairment Of Long Lived Assets Held For Use ImpairmentOfLongLivedAssetsHeldForUse	7159000	USD
CY2021	us-gaap	Restructuring Charges RestructuringCharges	186000	USD
CY2020	us-gaap	Restructuring Charges RestructuringCharges	168000	USD
CY2019	us-gaap	Restructuring Charges RestructuringCharges	0	USD
CY2021	us-gaap	Other Noncash Income OtherNoncashIncome	1053000	USD
CY2020	us-gaap	Other Noncash Income OtherNoncashIncome	0	USD
CY2019	us-gaap	Other Noncash Income OtherNoncashIncome	0	USD
CY2021	us-gaap	Increase Decrease In Accounts And Other Receivables IncreaseDecreaseInAccountsAndOtherReceivables	-1033000	USD
CY2020	us-gaap	Increase Decrease In Accounts And Other Receivables IncreaseDecreaseInAccountsAndOtherReceivables	1913000	USD
CY2019	us-gaap	Increase Decrease In Accounts And Other Receivables IncreaseDecreaseInAccountsAndOtherReceivables	349000	USD
CY2021	us-gaap	Increase Decrease In Inventories IncreaseDecreaseInInventories	292000	USD
CY2020	us-gaap	Increase Decrease In Inventories IncreaseDecreaseInInventories	-324000	USD
CY2019	us-gaap	Increase Decrease In Inventories IncreaseDecreaseInInventories	191000	USD
CY2021	us-gaap	Increase Decrease In Prepaid Deferred Expense And Other Assets IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets	985000	USD
CY2020	us-gaap	Increase Decrease In Prepaid Deferred Expense And Other Assets IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets	-3710000	USD
CY2019	us-gaap	Increase Decrease In Prepaid Deferred Expense And Other Assets IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets	732000	USD
CY2021	us-gaap	Increase Decrease In Other Noncurrent Assets IncreaseDecreaseInOtherNoncurrentAssets	466000	USD
CY2020	us-gaap	Increase Decrease In Other Noncurrent Assets IncreaseDecreaseInOtherNoncurrentAssets	227000	USD
CY2019	us-gaap	Increase Decrease In Other Noncurrent Assets IncreaseDecreaseInOtherNoncurrentAssets	273000	USD
CY2021	us-gaap	Increase Decrease In Accounts Payable IncreaseDecreaseInAccountsPayable	477000	USD
CY2020	us-gaap	Increase Decrease In Accounts Payable IncreaseDecreaseInAccountsPayable	-471000	USD
CY2019	us-gaap	Increase Decrease In Accounts Payable IncreaseDecreaseInAccountsPayable	-271000	USD
CY2021	taco	Increase Decreasein Operating Lease Liabilities IncreaseDecreaseinOperatingLeaseLiabilities	-22198000	USD
CY2020	taco	Increase Decreasein Operating Lease Liabilities IncreaseDecreaseinOperatingLeaseLiabilities	-21057000	USD
CY2019	taco	Increase Decreasein Operating Lease Liabilities IncreaseDecreaseinOperatingLeaseLiabilities	-18846000	USD
CY2021	us-gaap	Increase Decrease In Other Accrued Liabilities IncreaseDecreaseInOtherAccruedLiabilities	2047000	USD
CY2020	us-gaap	Increase Decrease In Other Accrued Liabilities IncreaseDecreaseInOtherAccruedLiabilities	11530000	USD
CY2019	us-gaap	Increase Decrease In Other Accrued Liabilities IncreaseDecreaseInOtherAccruedLiabilities	-1308000	USD
CY2021	us-gaap	Increase Decrease In Other Noncurrent Liabilities IncreaseDecreaseInOtherNoncurrentLiabilities	-2892000	USD
CY2020	us-gaap	Increase Decrease In Other Noncurrent Liabilities IncreaseDecreaseInOtherNoncurrentLiabilities	2963000	USD
CY2019	us-gaap	Increase Decrease In Other Noncurrent Liabilities IncreaseDecreaseInOtherNoncurrentLiabilities	973000	USD
CY2021	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	45964000	USD
CY2020	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	59763000	USD
CY2019	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	49045000	USD
CY2021	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	23257000	USD
CY2020	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	22019000	USD
CY2019	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	43696000	USD
CY2021	us-gaap	Proceeds From Sale Of Property Plant And Equipment ProceedsFromSaleOfPropertyPlantAndEquipment	1467000	USD
CY2020	us-gaap	Proceeds From Sale Of Property Plant And Equipment ProceedsFromSaleOfPropertyPlantAndEquipment	3638000	USD
CY2019	us-gaap	Proceeds From Sale Of Property Plant And Equipment ProceedsFromSaleOfPropertyPlantAndEquipment	14107000	USD
CY2021	us-gaap	Payments To Acquire Other Productive Assets PaymentsToAcquireOtherProductiveAssets	3638000	USD
CY2020	us-gaap	Payments To Acquire Other Productive Assets PaymentsToAcquireOtherProductiveAssets	1730000	USD
CY2019	us-gaap	Payments To Acquire Other Productive Assets PaymentsToAcquireOtherProductiveAssets	2039000	USD
CY2021	taco	Acquisitionoffranchisees Acquisitionoffranchisees	0	USD
CY2020	taco	Acquisitionoffranchisees Acquisitionoffranchisees	0	USD
CY2019	taco	Acquisitionoffranchisees Acquisitionoffranchisees	4832000	USD
CY2021	us-gaap	Proceeds From Divestiture Of Businesses ProceedsFromDivestitureOfBusinesses	0	USD
CY2020	us-gaap	Proceeds From Divestiture Of Businesses ProceedsFromDivestitureOfBusinesses	2558000	USD
CY2019	us-gaap	Proceeds From Divestiture Of Businesses ProceedsFromDivestitureOfBusinesses	7187000	USD
CY2021	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-25428000	USD
CY2020	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-17553000	USD
CY2019	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-29273000	USD
CY2021	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	7514000	USD
CY2020	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	4222000	USD
CY2019	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	7373000	USD
CY2021	us-gaap	Repayments Of Other Long Term Debt RepaymentsOfOtherLongTermDebt	154000	USD
CY2020	us-gaap	Repayments Of Other Long Term Debt RepaymentsOfOtherLongTermDebt	218000	USD
CY2019	us-gaap	Repayments Of Other Long Term Debt RepaymentsOfOtherLongTermDebt	635000	USD
CY2021	us-gaap	Proceeds From Long Term Lines Of Credit ProceedsFromLongTermLinesOfCredit	40000000	USD
CY2020	us-gaap	Proceeds From Long Term Lines Of Credit ProceedsFromLongTermLinesOfCredit	66000000	USD
CY2019	us-gaap	Proceeds From Long Term Lines Of Credit ProceedsFromLongTermLinesOfCredit	41000000	USD
CY2021	us-gaap	Repayments Of Long Term Lines Of Credit RepaymentsOfLongTermLinesOfCredit	48000000	USD
CY2020	us-gaap	Repayments Of Long Term Lines Of Credit RepaymentsOfLongTermLinesOfCredit	96000000	USD
CY2019	us-gaap	Repayments Of Long Term Lines Of Credit RepaymentsOfLongTermLinesOfCredit	55000000	USD
CY2021	us-gaap	Payments To Minority Shareholders PaymentsToMinorityShareholders	0	USD
CY2020	us-gaap	Payments To Minority Shareholders PaymentsToMinorityShareholders	280000	USD
CY2019	us-gaap	Payments To Minority Shareholders PaymentsToMinorityShareholders	0	USD
CY2021	us-gaap	Payments Related To Tax Withholding For Share Based Compensation PaymentsRelatedToTaxWithholdingForShareBasedCompensation	1895000	USD
CY2020	us-gaap	Payments Related To Tax Withholding For Share Based Compensation PaymentsRelatedToTaxWithholdingForShareBasedCompensation	999000	USD
CY2019	us-gaap	Payments Related To Tax Withholding For Share Based Compensation PaymentsRelatedToTaxWithholdingForShareBasedCompensation	2602000	USD
CY2021	us-gaap	Payments Of Dividends PaymentsOfDividends	5857000	USD
CY2020	us-gaap	Payments Of Dividends PaymentsOfDividends	0	USD
CY2019	us-gaap	Payments Of Dividends PaymentsOfDividends	0	USD
CY2021	us-gaap	Proceeds From Stock Options Exercised ProceedsFromStockOptionsExercised	50000	USD
CY2020	us-gaap	Proceeds From Stock Options Exercised ProceedsFromStockOptionsExercised	0	USD
CY2019	us-gaap	Proceeds From Stock Options Exercised ProceedsFromStockOptionsExercised	120000	USD
CY2021	us-gaap	Payments Of Debt Issuance Costs PaymentsOfDebtIssuanceCosts	0	USD
CY2020	us-gaap	Payments Of Debt Issuance Costs PaymentsOfDebtIssuanceCosts	0	USD
CY2019	us-gaap	Payments Of Debt Issuance Costs PaymentsOfDebtIssuanceCosts	1014000	USD
CY2021	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	-23370000	USD
CY2020	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	-35719000	USD
CY2019	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	-25504000	USD
CY2021	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	-2834000	USD
CY2020	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	6491000	USD
CY2019	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	-5732000	USD
CY2020Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	7912000	USD
CY2019Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	1421000	USD
CY2019Q1	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	7153000	USD
CY2021Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	5078000	USD
CY2020Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	7912000	USD
CY2019Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	1421000	USD
CY2021	us-gaap	Interest Paid Net InterestPaidNet	2636000	USD
CY2020	us-gaap	Interest Paid Net InterestPaidNet	4090000	USD
CY2019	us-gaap	Interest Paid Net InterestPaidNet	6919000	USD
CY2021	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	8505000	USD
CY2020	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	3456000	USD
CY2019	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	3856000	USD
CY2021	us-gaap	Capital Expenditures Incurred But Not Yet Paid CapitalExpendituresIncurredButNotYetPaid	7241000	USD
CY2020	us-gaap	Capital Expenditures Incurred But Not Yet Paid CapitalExpendituresIncurredButNotYetPaid	4012000	USD
CY2019	us-gaap	Capital Expenditures Incurred But Not Yet Paid CapitalExpendituresIncurredButNotYetPaid	5729000	USD
CY2021	us-gaap	Allowance For Doubtful Accounts Receivable Write Offs AllowanceForDoubtfulAccountsReceivableWriteOffs	39000	USD
CY2020	us-gaap	Allowance For Doubtful Accounts Receivable Write Offs AllowanceForDoubtfulAccountsReceivableWriteOffs	0	USD
CY2019	us-gaap	Allowance For Doubtful Accounts Receivable Write Offs AllowanceForDoubtfulAccountsReceivableWriteOffs	30000	USD
CY2021	taco	Amortization Of Interest Rate Cap Into Net Loss Income Net Of Tax AmortizationOfInterestRateCapIntoNetLossIncomeNetOfTax	0	USD
CY2020	taco	Amortization Of Interest Rate Cap Into Net Loss Income Net Of Tax AmortizationOfInterestRateCapIntoNetLossIncomeNetOfTax	52000	USD
CY2019	taco	Amortization Of Interest Rate Cap Into Net Loss Income Net Of Tax AmortizationOfInterestRateCapIntoNetLossIncomeNetOfTax	132000	USD
CY2021	taco	Change In Other Asset For Fair Value Of Interest Rate Cap Recorded To Other Comprehensive Loss Income Net Of Tax ChangeInOtherAssetForFairValueOfInterestRateCapRecordedToOtherComprehensiveLossIncomeNetOfTax	0	USD
CY2020	taco	Change In Other Asset For Fair Value Of Interest Rate Cap Recorded To Other Comprehensive Loss Income Net Of Tax ChangeInOtherAssetForFairValueOfInterestRateCapRecordedToOtherComprehensiveLossIncomeNetOfTax	0	USD
CY2019	taco	Change In Other Asset For Fair Value Of Interest Rate Cap Recorded To Other Comprehensive Loss Income Net Of Tax ChangeInOtherAssetForFairValueOfInterestRateCapRecordedToOtherComprehensiveLossIncomeNetOfTax	-364000	USD
CY2021	us-gaap	Right Of Use Asset Obtained In Exchange For Operating Lease Liability RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability	12462000	USD
CY2020	us-gaap	Right Of Use Asset Obtained In Exchange For Operating Lease Liability RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability	18926000	USD
CY2019	us-gaap	Right Of Use Asset Obtained In Exchange For Operating Lease Liability RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability	298942000	USD
CY2021	us-gaap	Right Of Use Asset Obtained In Exchange For Finance Lease Liability RightOfUseAssetObtainedInExchangeForFinanceLeaseLiability	0	USD
CY2020	us-gaap	Right Of Use Asset Obtained In Exchange For Finance Lease Liability RightOfUseAssetObtainedInExchangeForFinanceLeaseLiability	0	USD
CY2019	us-gaap	Right Of Use Asset Obtained In Exchange For Finance Lease Liability RightOfUseAssetObtainedInExchangeForFinanceLeaseLiability	1185000	USD
CY2021	taco	Impairmentof Operating Lease Rightof Use Asset ImpairmentofOperatingLeaseRightofUseAsset	0	USD
CY2020	taco	Impairmentof Operating Lease Rightof Use Asset ImpairmentofOperatingLeaseRightofUseAsset	0	USD
CY2019	taco	Impairmentof Operating Lease Rightof Use Asset ImpairmentofOperatingLeaseRightofUseAsset	3116000	USD
CY2021	us-gaap	Impairment Of Long Lived Assets Held For Use ImpairmentOfLongLivedAssetsHeldForUse	9100000	USD
CY2021Q4	us-gaap	Number Of States In Which Entity Operates NumberOfStatesInWhichEntityOperates	16	state
CY2020Q4	us-gaap	Number Of States In Which Entity Operates NumberOfStatesInWhichEntityOperates	16	state
CY2021	us-gaap	Use Of Estimates UseOfEstimates	<div style="margin-top:18pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:700;line-height:120%">Use of Estimates</span></div><div style="margin-top:6pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">The preparation of the consolidated financial statements in conformity with U.S. GAAP requires management to make estimates and assumptions that affect the amounts reported in the consolidated financial statements and accompanying notes. Management believes that such estimates have been based on reasonable and supportable assumptions and the resulting estimates are reasonable for use in the preparation of the consolidated financial statements. Actual results could differ from these estimates. The Company’s significant estimates include estimates for impairment of goodwill, intangible assets and property and equipment, valuations provided in business combinations, insurance reserves, restaurant closure reserves, stock-based compensation, contingent liabilities, certain leasing activities and income tax valuation allowances.</span></div>
CY2021Q4	us-gaap	Revenue Remaining Performance Obligation RevenueRemainingPerformanceObligation	246000	USD
CY2021Q4	us-gaap	Revenue Remaining Performance Obligation RevenueRemainingPerformanceObligation	234000	USD
CY2021Q4	us-gaap	Revenue Remaining Performance Obligation RevenueRemainingPerformanceObligation	231000	USD
CY2021Q4	us-gaap	Revenue Remaining Performance Obligation RevenueRemainingPerformanceObligation	231000	USD
CY2021Q4	us-gaap	Revenue Remaining Performance Obligation RevenueRemainingPerformanceObligation	225000	USD
CY2021Q4	us-gaap	Revenue Remaining Performance Obligation RevenueRemainingPerformanceObligation	2358000	USD
CY2021Q4	us-gaap	Revenue Remaining Performance Obligation RevenueRemainingPerformanceObligation	3525000	USD
CY2021	taco	Percentage Of Net Sales For Advertising PercentageOfNetSalesForAdvertising	0.04
CY2021	taco	Percentage Of Net Sales For Advertising PercentageOfNetSalesForAdvertising	0.040
CY2020Q2	taco	Percentage Of Net Sales For Advertising PercentageOfNetSalesForAdvertising	0.025
CY2021	taco	Percentage Of Net Sales For Advertising PercentageOfNetSalesForAdvertising	0.040
CY2021Q4	taco	Deferred Gift Card Income Total DeferredGiftCardIncomeTotal	3300000	USD
CY2020Q4	taco	Deferred Gift Card Income Total DeferredGiftCardIncomeTotal	3100000	USD
CY2021Q4	taco	Deferred Gift Card Income Current DeferredGiftCardIncomeCurrent	1700000	USD
CY2020Q4	taco	Deferred Gift Card Income Current DeferredGiftCardIncomeCurrent	1700000	USD
CY2021Q4	taco	Deferred Gift Card Income Noncurrent DeferredGiftCardIncomeNoncurrent	1600000	USD
CY2020Q4	taco	Deferred Gift Card Income Noncurrent DeferredGiftCardIncomeNoncurrent	1500000	USD
CY2021	taco	Reimbursementsfrom Vendors Numberof Vendors ReimbursementsfromVendorsNumberofVendors	1	vendor
CY2021Q4	taco	Accrued Liabilities Vendor Advances Noncurrent AccruedLiabilitiesVendorAdvancesNoncurrent	0	USD
CY2020Q4	taco	Accrued Liabilities Vendor Advances Noncurrent AccruedLiabilitiesVendorAdvancesNoncurrent	27000	USD
CY2021Q4	taco	Accrued Liabilities Vendor Advances Current AccruedLiabilitiesVendorAdvancesCurrent	0	USD
CY2020Q4	taco	Accrued Liabilities Vendor Advances Current AccruedLiabilitiesVendorAdvancesCurrent	400000	USD
CY2021	us-gaap	Pre Opening Costs PreOpeningCosts	700000	USD
CY2021	us-gaap	Depreciation Depreciation	23300000	USD
CY2020	us-gaap	Depreciation Depreciation	23200000	USD
CY2019	us-gaap	Depreciation Depreciation	22700000	USD
CY2021	us-gaap	Interest Costs Capitalized InterestCostsCapitalized	21000	USD
CY2020	us-gaap	Interest Costs Capitalized InterestCostsCapitalized	34000	USD
CY2019	us-gaap	Interest Costs Capitalized InterestCostsCapitalized	100000	USD
	us-gaap	Goodwill Impairment Loss GoodwillImpairmentLoss	118300000	USD
CY2019	us-gaap	Pre Opening Costs PreOpeningCosts	1700000	USD
CY2020Q1	us-gaap	Goodwill Impairment Loss GoodwillImpairmentLoss	87300000	USD
CY2021Q4	us-gaap	Capitalized Computer Software Net CapitalizedComputerSoftwareNet	4300000	USD
CY2020Q4	us-gaap	Capitalized Computer Software Net CapitalizedComputerSoftwareNet	2500000	USD
CY2021	us-gaap	Capitalized Computer Software Additions CapitalizedComputerSoftwareAdditions	3500000	USD
CY2019	us-gaap	Capitalized Computer Software Additions CapitalizedComputerSoftwareAdditions	1600000	USD
CY2020	us-gaap	Capitalized Computer Software Additions CapitalizedComputerSoftwareAdditions	2000000	USD
CY2021	us-gaap	Capitalized Computer Software Amortization1 CapitalizedComputerSoftwareAmortization1	1800000	USD
CY2020	us-gaap	Capitalized Computer Software Amortization1 CapitalizedComputerSoftwareAmortization1	1900000	USD
CY2019	us-gaap	Capitalized Computer Software Amortization1 CapitalizedComputerSoftwareAmortization1	1400000	USD
CY2021	us-gaap	Impairment Of Long Lived Assets Held For Use ImpairmentOfLongLivedAssetsHeldForUse	9100000	USD
CY2021	taco	Numberof Underperforming Restaurant Locations NumberofUnderperformingRestaurantLocations	5	location
CY2020	us-gaap	Impairment Of Long Lived Assets Held For Use ImpairmentOfLongLivedAssetsHeldForUse	8300000	USD
CY2020	taco	Numberof Underperforming Restaurant Locations NumberofUnderperformingRestaurantLocations	8	location
CY2019	us-gaap	Impairment Of Long Lived Assets Held For Use ImpairmentOfLongLivedAssetsHeldForUse	7200000	USD
CY2019	taco	Numberof Underperforming Restaurant Locations NumberofUnderperformingRestaurantLocations	7	location
CY2021Q4	us-gaap	Lessee Operating Lease Term Of Contract LesseeOperatingLeaseTermOfContract	P50Y
CY2021	taco	Deductible Per Occurrence For General Liability DeductiblePerOccurrenceForGeneralLiability	350000	USD
CY2021	taco	Percentage Of Net Sales For Advertising PercentageOfNetSalesForAdvertising	0.040
CY2021	taco	Percentage Of Net Sales For Advertising PercentageOfNetSalesForAdvertising	0.040
CY2020Q2	taco	Percentage Of Net Sales For Advertising PercentageOfNetSalesForAdvertising	0.025
CY2021	taco	Percentage Of Net Sales For Advertising PercentageOfNetSalesForAdvertising	0.040
CY2021	us-gaap	Advertising Expense AdvertisingExpense	19000000	USD
CY2019	us-gaap	Advertising Expense AdvertisingExpense	16400000	USD
CY2020	us-gaap	Advertising Expense AdvertisingExpense	18800000	USD
CY2021Q4	taco	Number Of Restaurants California NumberOfRestaurantsCalifornia	368	restaurants
CY2021	us-gaap	Number Of Operating Segments NumberOfOperatingSegments	1	Segment
CY2021	us-gaap	Number Of Reportable Segments NumberOfReportableSegments	1	Segment
CY2021	us-gaap	Concentration Risk Credit Risk ConcentrationRiskCreditRisk	<div><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:700;line-height:120%">Concentration of Risks</span></div><div style="margin-top:6pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">Financial instruments that potentially subject the Company to a concentration of credit risk are cash and cash equivalents. The Company maintains its day-to-day operating cash balances in non-interest-bearing accounts. Although the Company at times maintains balances that exceed amounts insured by the Federal Deposit Insurance Corporation, it has not experienced any losses related to these balances and management believes the credit risk to be minimal.</span></div><div style="margin-top:12pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">The Company extends credit to franchisees for franchise and advertising fees on customary credit terms, which generally do not require collateral or other security. In addition, management believes there is no concentration of risk with any single franchisee or small group of franchisees whose failure or nonperformance would materially affect the Company’s results of operations.</span></div><div style="margin-top:12pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">The Company has entered into a long-term purchase agreement with a distributor for delivery of essentially all food and paper supplies to all company-operated and franchise-operated restaurants except for one restaurant in Guam. Disruption in shipments from this distributor could have a material adverse effect on the results of operations and financial condition of the Company. However, management of the Company believes sufficient alternative distributors exist in the marketplace although it may take some time to enter into replacement distribution arrangements and the cost of distribution may increase as a result.</span></div><div style="margin-top:12pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">As of December 28, 2021, Del Taco operated and franchised a total of 368 restaurants in California (231 company-operated and 137 franchise-operated restaurants). As a result, the Company is particularly susceptible to adverse trends and economic conditions in California. In addition, given this geographic concentration, negative publicity regarding any of the restaurants in California could have a material adverse effect on the Company’s business and operations, as could other regional occurrences such as local strikes, fires, earthquakes, other natural disasters or regional restrictions and regulations including those related to the COVID-19 pandemic.</span></div>
CY2021	taco	Numberof Underperforming Restaurant Locations NumberofUnderperformingRestaurantLocations	5	location
CY2020	us-gaap	Impairment Of Long Lived Assets Held For Use ImpairmentOfLongLivedAssetsHeldForUse	8300000	USD
CY2020	taco	Numberof Underperforming Restaurant Locations NumberofUnderperformingRestaurantLocations	8	location
CY2019	us-gaap	Impairment Of Long Lived Assets Held For Use ImpairmentOfLongLivedAssetsHeldForUse	7200000	USD
CY2019	taco	Numberof Underperforming Restaurant Locations NumberofUnderperformingRestaurantLocations	7	location
CY2019Q1	taco	Impairmentof Operating Lease Rightof Use Asset ImpairmentofOperatingLeaseRightofUseAsset	3100000	USD
CY2021Q4	us-gaap	Restructuring Reserve RestructuringReserve	300000	USD
CY2020Q4	us-gaap	Restructuring Reserve RestructuringReserve	500000	USD
CY2021Q4	us-gaap	Restructuring Reserve Current RestructuringReserveCurrent	100000	USD
CY2020Q4	us-gaap	Restructuring Reserve Current RestructuringReserveCurrent	200000	USD
CY2021Q4	us-gaap	Restructuring Reserve Noncurrent RestructuringReserveNoncurrent	200000	USD
CY2020Q4	us-gaap	Restructuring Reserve Noncurrent RestructuringReserveNoncurrent	300000	USD
CY2021Q4	us-gaap	Property Plant And Equipment Gross PropertyPlantAndEquipmentGross	270136000	USD
CY2020Q4	us-gaap	Property Plant And Equipment Gross PropertyPlantAndEquipmentGross	250591000	USD
CY2021Q4	us-gaap	Accumulated Depreciation Depletion And Amortization Property Plant And Equipment AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment	124798000	USD
CY2020Q4	us-gaap	Accumulated Depreciation Depletion And Amortization Property Plant And Equipment AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment	103885000	USD
CY2021Q4	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	145338000	USD
CY2020Q4	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	146706000	USD
CY2020	taco	Companyoperatedrestaurantssoldtofranchisees Companyoperatedrestaurantssoldtofranchisees	6	restaurants
CY2019	taco	Companyoperatedrestaurantssoldtofranchisees Companyoperatedrestaurantssoldtofranchisees	31	restaurants
CY2021	taco	Companyoperatedrestaurantssoldtofranchisees Companyoperatedrestaurantssoldtofranchisees	0	restaurants
CY2020	taco	Companyoperatedrestaurantssoldtofranchisees Companyoperatedrestaurantssoldtofranchisees	6	restaurants
CY2019	taco	Companyoperatedrestaurantssoldtofranchisees Companyoperatedrestaurantssoldtofranchisees	31	restaurants
CY2021	taco	Proceedsfrom Divestitureof Businesses Gross ProceedsfromDivestitureofBusinessesGross	0	USD
CY2020	taco	Proceedsfrom Divestitureof Businesses Gross ProceedsfromDivestitureofBusinessesGross	2558000	USD
CY2019	taco	Proceedsfrom Divestitureof Businesses Gross ProceedsfromDivestitureofBusinessesGross	7310000	USD
CY2021	taco	Assetsretiredrelatedtosaleofcompanyoperatedrestaurants Assetsretiredrelatedtosaleofcompanyoperatedrestaurants	0	USD
CY2020	taco	Assetsretiredrelatedtosaleofcompanyoperatedrestaurants Assetsretiredrelatedtosaleofcompanyoperatedrestaurants	-2086000	USD
CY2019	taco	Assetsretiredrelatedtosaleofcompanyoperatedrestaurants Assetsretiredrelatedtosaleofcompanyoperatedrestaurants	-4952000	USD
CY2021	us-gaap	Goodwill Period Increase Decrease GoodwillPeriodIncreaseDecrease	0	USD
CY2020	us-gaap	Goodwill Period Increase Decrease GoodwillPeriodIncreaseDecrease	-1196000	USD
CY2019	us-gaap	Goodwill Period Increase Decrease GoodwillPeriodIncreaseDecrease	-6078000	USD
CY2021	taco	Allocationto Deferred Franchise Fees AllocationtoDeferredFranchiseFees	0	USD
CY2020	taco	Allocationto Deferred Franchise Fees AllocationtoDeferredFranchiseFees	-193000	USD
CY2019	taco	Allocationto Deferred Franchise Fees AllocationtoDeferredFranchiseFees	-771000	USD
CY2021	taco	Unfavorablefavorableleaseassetsliabilities Unfavorablefavorableleaseassetsliabilities	0	USD
CY2020	taco	Unfavorablefavorableleaseassetsliabilities Unfavorablefavorableleaseassetsliabilities	220000	USD
CY2019	taco	Unfavorablefavorableleaseassetsliabilities Unfavorablefavorableleaseassetsliabilities	-50000	USD
CY2021	taco	Gain Loss On Termination Of Lease Due To Refranchising GainLossOnTerminationOfLeaseDueToRefranchising	0	USD
CY2020	taco	Gain Loss On Termination Of Lease Due To Refranchising GainLossOnTerminationOfLeaseDueToRefranchising	40000	USD
CY2019	taco	Gain Loss On Termination Of Lease Due To Refranchising GainLossOnTerminationOfLeaseDueToRefranchising	0	USD
CY2021	taco	Othercostsrelatedtothesaleofcompanyoperatedrestaurants Othercostsrelatedtothesaleofcompanyoperatedrestaurants	0	USD
CY2020	taco	Othercostsrelatedtothesaleofcompanyoperatedrestaurants Othercostsrelatedtothesaleofcompanyoperatedrestaurants	0	USD
CY2019	taco	Othercostsrelatedtothesaleofcompanyoperatedrestaurants Othercostsrelatedtothesaleofcompanyoperatedrestaurants	-123000	USD
CY2021	taco	Disposal Group Not Discontinued Operation Gain Losson Disposal Net DisposalGroupNotDiscontinuedOperationGainLossonDisposalNet	0	USD
CY2020	taco	Disposal Group Not Discontinued Operation Gain Losson Disposal Net DisposalGroupNotDiscontinuedOperationGainLossonDisposalNet	-657000	USD
CY2019	taco	Disposal Group Not Discontinued Operation Gain Losson Disposal Net DisposalGroupNotDiscontinuedOperationGainLossonDisposalNet	-4664000	USD
CY2020	taco	Assets Held For Sale Assets Sold AssetsHeldForSaleAssetsSold	700000	USD
CY2019	taco	Assets Held For Sale Assets Sold AssetsHeldForSaleAssetsSold	2100000	USD
CY2020	taco	Assets Held For Sale Fair Value Adjustment AssetsHeldForSaleFairValueAdjustment	600000	USD
CY2021Q4	us-gaap	Land Available For Sale LandAvailableForSale	0	USD
CY2020Q4	us-gaap	Land Available For Sale LandAvailableForSale	561000	USD
CY2021Q4	us-gaap	Real Estate Heldforsale RealEstateHeldforsale	0	USD
CY2020Q4	us-gaap	Real Estate Heldforsale RealEstateHeldforsale	934000	USD
CY2021Q4	us-gaap	Assets Held For Sale Not Part Of Disposal Group Current AssetsHeldForSaleNotPartOfDisposalGroupCurrent	0	USD
CY2020Q4	us-gaap	Assets Held For Sale Not Part Of Disposal Group Current AssetsHeldForSaleNotPartOfDisposalGroupCurrent	1495000	USD
CY2021Q4	taco	Businesscombinationrecognizedidentifiableassetsacquiredandliabilitiesassumedoperatingleaserightofuseassets Businesscombinationrecognizedidentifiableassetsacquiredandliabilitiesassumedoperatingleaserightofuseassets	0	USD
CY2020Q4	taco	Businesscombinationrecognizedidentifiableassetsacquiredandliabilitiesassumedoperatingleaserightofuseassets Businesscombinationrecognizedidentifiableassetsacquiredandliabilitiesassumedoperatingleaserightofuseassets	0	USD
CY2019Q4	taco	Businesscombinationrecognizedidentifiableassetsacquiredandliabilitiesassumedoperatingleaserightofuseassets Businesscombinationrecognizedidentifiableassetsacquiredandliabilitiesassumedoperatingleaserightofuseassets	2006000	USD
CY2021Q4	taco	Businesscombinationrecognizedidentifiableassetsacquiredandliabilitiesassumedoperatingleaseliabilities Businesscombinationrecognizedidentifiableassetsacquiredandliabilitiesassumedoperatingleaseliabilities	0	USD
CY2020Q4	taco	Businesscombinationrecognizedidentifiableassetsacquiredandliabilitiesassumedoperatingleaseliabilities Businesscombinationrecognizedidentifiableassetsacquiredandliabilitiesassumedoperatingleaseliabilities	0	USD
CY2019Q4	taco	Businesscombinationrecognizedidentifiableassetsacquiredandliabilitiesassumedoperatingleaseliabilities Businesscombinationrecognizedidentifiableassetsacquiredandliabilitiesassumedoperatingleaseliabilities	2006000	USD
CY2020	us-gaap	Below Market Lease Acquired BelowMarketLeaseAcquired	100000	USD
CY2021Q4	us-gaap	Goodwill Goodwill	109000000	USD
CY2020Q4	us-gaap	Goodwill Goodwill	109000000	USD
CY2020	us-gaap	Goodwill Impairment Loss GoodwillImpairmentLoss	87300000	USD
CY2021Q4	us-gaap	Goodwill Impaired Accumulated Impairment Loss GoodwillImpairedAccumulatedImpairmentLoss	205600000	USD
CY2021Q4	us-gaap	Indefinite Lived Trademarks IndefiniteLivedTrademarks	208400000	USD
CY2021Q4	us-gaap	Finite Lived Intangible Assets Gross FiniteLivedIntangibleAssetsGross	16609000	USD
CY2021Q4	us-gaap	Finite Lived Intangible Assets Accumulated Amortization FiniteLivedIntangibleAssetsAccumulatedAmortization	8101000	USD
CY2021Q4	us-gaap	Finite Lived Intangible Assets Net FiniteLivedIntangibleAssetsNet	8508000	USD
CY2020Q4	us-gaap	Finite Lived Intangible Assets Gross FiniteLivedIntangibleAssetsGross	16681000	USD
CY2020Q4	us-gaap	Finite Lived Intangible Assets Accumulated Amortization FiniteLivedIntangibleAssetsAccumulatedAmortization	6927000	USD
CY2020Q4	us-gaap	Finite Lived Intangible Assets Net FiniteLivedIntangibleAssetsNet	9754000	USD
CY2020	us-gaap	Goodwill Acquired During Period GoodwillAcquiredDuringPeriod	500000	USD
CY2021	taco	Goodwill Reclassificationto Held For Sale GoodwillReclassificationtoHeldForSale	-100000	USD
CY2021	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	2900000	USD
CY2020	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	3400000	USD
CY2019	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	2800000	USD
CY2021Q4	us-gaap	Deferred Finance Costs Net DeferredFinanceCostsNet	604000	USD
CY2020Q4	us-gaap	Deferred Finance Costs Net DeferredFinanceCostsNet	821000	USD
CY2021Q4	us-gaap	Long Term Debt LongTermDebt	106263000	USD
CY2020Q4	us-gaap	Long Term Debt LongTermDebt	113997000	USD
CY2021Q4	taco	Finance Leases Obligations And Other Debt FinanceLeasesObligationsAndOtherDebt	421000	USD
CY2020Q4	taco	Finance Leases Obligations And Other Debt FinanceLeasesObligationsAndOtherDebt	611000	USD
CY2021Q4	us-gaap	Long Term Debt And Capital Lease Obligations Including Current Maturities LongTermDebtAndCapitalLeaseObligationsIncludingCurrentMaturities	106684000	USD
CY2020Q4	us-gaap	Long Term Debt And Capital Lease Obligations Including Current Maturities LongTermDebtAndCapitalLeaseObligationsIncludingCurrentMaturities	114608000	USD
CY2021Q4	us-gaap	Long Term Debt And Capital Lease Obligations Current LongTermDebtAndCapitalLeaseObligationsCurrent	35000	USD
CY2020Q4	us-gaap	Long Term Debt And Capital Lease Obligations Current LongTermDebtAndCapitalLeaseObligationsCurrent	190000	USD
CY2021Q4	us-gaap	Long Term Debt And Capital Lease Obligations LongTermDebtAndCapitalLeaseObligations	106649000	USD
CY2020Q4	us-gaap	Long Term Debt And Capital Lease Obligations LongTermDebtAndCapitalLeaseObligations	114418000	USD
CY2021	us-gaap	Amortization Of Financing Costs And Discounts AmortizationOfFinancingCostsAndDiscounts	300000	USD
CY2020	us-gaap	Amortization Of Financing Costs And Discounts AmortizationOfFinancingCostsAndDiscounts	400000	USD
CY2019	us-gaap	Amortization Of Financing Costs And Discounts AmortizationOfFinancingCostsAndDiscounts	400000	USD
CY2021Q4	us-gaap	Long Term Debt And Capital Lease Obligations Repayments Of Principal In Next Twelve Months LongTermDebtAndCapitalLeaseObligationsRepaymentsOfPrincipalInNextTwelveMonths	35000	USD
CY2021Q4	us-gaap	Long Term Debt And Capital Lease Obligations Maturities Repayments Of Principal In Year Two LongTermDebtAndCapitalLeaseObligationsMaturitiesRepaymentsOfPrincipalInYearTwo	78000	USD
CY2021Q4	us-gaap	Long Term Debt And Capital Lease Obligations Maturities Repayments Of Principal In Year Three LongTermDebtAndCapitalLeaseObligationsMaturitiesRepaymentsOfPrincipalInYearThree	107079000	USD
CY2021Q4	us-gaap	Long Term Debt And Capital Lease Obligations Maturities Repayments Of Principal In Year Four LongTermDebtAndCapitalLeaseObligationsMaturitiesRepaymentsOfPrincipalInYearFour	64000	USD
CY2021Q4	us-gaap	Long Term Debt And Capital Lease Obligations Maturities Repayments Of Principal In Year Five LongTermDebtAndCapitalLeaseObligationsMaturitiesRepaymentsOfPrincipalInYearFive	63000	USD
CY2021Q4	us-gaap	Long Term Debt And Capital Lease Obligations Maturities Repayments Of Principal After Year Five LongTermDebtAndCapitalLeaseObligationsMaturitiesRepaymentsOfPrincipalAfterYearFive	102000	USD
CY2021Q4	taco	Longterm Debtand Capital Lease Obligations Gross LongtermDebtandCapitalLeaseObligationsGross	107421000	USD
CY2021Q4	us-gaap	Debt Instrument Unamortized Discount Premium And Debt Issuance Costs Net DebtInstrumentUnamortizedDiscountPremiumAndDebtIssuanceCostsNet	737000	USD
CY2021Q4	us-gaap	Long Term Debt And Capital Lease Obligations Including Current Maturities LongTermDebtAndCapitalLeaseObligationsIncludingCurrentMaturities	106684000	USD
CY2020	us-gaap	Interest Rate Cash Flow Hedge Gain Loss Reclassified To Earnings Net InterestRateCashFlowHedgeGainLossReclassifiedToEarningsNet	100000	USD
CY2021Q4	us-gaap	Employee Related Liabilities Current EmployeeRelatedLiabilitiesCurrent	19200000	USD
CY2020Q4	us-gaap	Employee Related Liabilities Current EmployeeRelatedLiabilitiesCurrent	16048000	USD
CY2021Q4	taco	Accrued Property And Equipment Purchases AccruedPropertyAndEquipmentPurchases	5239000	USD
CY2020Q4	taco	Accrued Property And Equipment Purchases AccruedPropertyAndEquipmentPurchases	1970000	USD
CY2021Q4	us-gaap	Accrued Insurance Current AccruedInsuranceCurrent	5169000	USD
CY2020Q4	us-gaap	Accrued Insurance Current AccruedInsuranceCurrent	5031000	USD
CY2021Q4	us-gaap	Accrued Advertising Current AccruedAdvertisingCurrent	4807000	USD
CY2020Q4	us-gaap	Accrued Advertising Current AccruedAdvertisingCurrent	3920000	USD
CY2021Q4	us-gaap	Sales And Excise Tax Payable Current SalesAndExciseTaxPayableCurrent	3601000	USD
CY2020Q4	us-gaap	Sales And Excise Tax Payable Current SalesAndExciseTaxPayableCurrent	3712000	USD
CY2021Q4	taco	Accrued Deferred Social Security Taxes Current AccruedDeferredSocialSecurityTaxesCurrent	3381000	USD
CY2020Q4	taco	Accrued Deferred Social Security Taxes Current AccruedDeferredSocialSecurityTaxesCurrent	3381000	USD
CY2021Q4	us-gaap	Litigation Reserve Current LitigationReserveCurrent	2673000	USD
CY2020Q4	us-gaap	Litigation Reserve Current LitigationReserveCurrent	0	USD
CY2021Q4	taco	Deferred Gift Card Income Current DeferredGiftCardIncomeCurrent	1658000	USD
CY2020Q4	taco	Deferred Gift Card Income Current DeferredGiftCardIncomeCurrent	1669000	USD
CY2021Q4	us-gaap	Accrual For Taxes Other Than Income Taxes Current AccrualForTaxesOtherThanIncomeTaxesCurrent	1582000	USD
CY2020Q4	us-gaap	Accrual For Taxes Other Than Income Taxes Current AccrualForTaxesOtherThanIncomeTaxesCurrent	1841000	USD
CY2021Q4	us-gaap	Accrued Rent Current And Noncurrent AccruedRentCurrentAndNoncurrent	1472000	USD
CY2020Q4	us-gaap	Accrued Rent Current And Noncurrent AccruedRentCurrentAndNoncurrent	1490000	USD
CY2021Q4	taco	Accrued State Income Tax AccruedStateIncomeTax	41000	USD
CY2020Q4	taco	Accrued State Income Tax AccruedStateIncomeTax	4301000	USD
CY2021Q4	us-gaap	Other Sundry Liabilities Current OtherSundryLiabilitiesCurrent	2248000	USD
CY2020Q4	us-gaap	Other Sundry Liabilities Current OtherSundryLiabilitiesCurrent	2050000	USD
CY2021Q4	us-gaap	Other Accrued Liabilities Current OtherAccruedLiabilitiesCurrent	51071000	USD
CY2020Q4	us-gaap	Other Accrued Liabilities Current OtherAccruedLiabilitiesCurrent	45413000	USD
CY2021Q4	us-gaap	Self Insurance Reserve Noncurrent SelfInsuranceReserveNoncurrent	7278000	USD
CY2020Q4	us-gaap	Self Insurance Reserve Noncurrent SelfInsuranceReserveNoncurrent	8178000	USD
CY2021Q4	taco	Deferred Development And Initial Franchise Fees Noncurrent DeferredDevelopmentAndInitialFranchiseFeesNoncurrent	5917000	USD
CY2020Q4	taco	Deferred Development And Initial Franchise Fees Noncurrent DeferredDevelopmentAndInitialFranchiseFeesNoncurrent	4523000	USD
CY2021Q4	taco	Deferred Gift Card Income Noncurrent DeferredGiftCardIncomeNoncurrent	1635000	USD
CY2020Q4	taco	Deferred Gift Card Income Noncurrent DeferredGiftCardIncomeNoncurrent	1464000	USD
CY2021Q4	taco	Sublease Liabilities SubleaseLiabilities	1264000	USD
CY2020Q4	taco	Sublease Liabilities SubleaseLiabilities	1375000	USD
CY2021Q4	taco	Deferred Social Security Taxes DeferredSocialSecurityTaxes	0	USD
CY2020Q4	taco	Deferred Social Security Taxes DeferredSocialSecurityTaxes	3381000	USD
CY2021Q4	us-gaap	Other Sundry Liabilities Noncurrent OtherSundryLiabilitiesNoncurrent	744000	USD
CY2020Q4	us-gaap	Other Sundry Liabilities Noncurrent OtherSundryLiabilitiesNoncurrent	839000	USD
CY2021Q4	us-gaap	Other Liabilities Noncurrent OtherLiabilitiesNoncurrent	16838000	USD
CY2020Q4	us-gaap	Other Liabilities Noncurrent OtherLiabilitiesNoncurrent	19760000	USD
CY2021	taco	Sublease Liability Amortization SubleaseLiabilityAmortization	100000	USD
CY2021	taco	Sublease Liability Weighted Average Remaining Lease Term SubleaseLiabilityWeightedAverageRemainingLeaseTerm	P13Y2M12D
CY2021Q4	taco	Lessee Sublease Liability To Be Paid In Each Of The Next Five Years LesseeSubleaseLiabilityToBePaidInEachOfTheNextFiveYears	100000	USD
CY2021	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Grants In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod	281822	shares
CY2020Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Nonvested Number ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber	1254775	shares
CY2020Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Nonvested Weighted Average Grant Date Fair Value ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue	9.84
CY2021	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Grants In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod	281822	shares
CY2021	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Grants In Period Weighted Average Grant Date Fair Value ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue	9.76
CY2021	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Vested In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriod	519931	shares
CY2021	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Vested In Period Weighted Average Grant Date Fair Value ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodWeightedAverageGrantDateFairValue	10.64
CY2021	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Forfeited In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeitedInPeriod	3750	shares
CY2021	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Forfeitures Weighted Average Grant Date Fair Value ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeituresWeightedAverageGrantDateFairValue	7.93
CY2021Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Nonvested Number ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber	1012916	shares
CY2021Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Nonvested Weighted Average Grant Date Fair Value ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue	9.41
CY2021	us-gaap	Shares Paid For Tax Withholding For Share Based Compensation SharesPaidForTaxWithholdingForShareBasedCompensation	191976	shares
CY2020	us-gaap	Shares Paid For Tax Withholding For Share Based Compensation SharesPaidForTaxWithholdingForShareBasedCompensation	164545	shares
CY2021	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period Gross ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross	678000	shares
CY2020Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber	574453	shares
CY2020Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice	9.54
CY2020	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Outstanding Weighted Average Remaining Contractual Term2 SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsOutstandingWeightedAverageRemainingContractualTerm2	P4Y4M24D
CY2020Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Intrinsic Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue	624000	USD
CY2021	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period Gross ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross	678000	shares
CY2021	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Grants In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice	9.88
CY2021	us-gaap	Stock Issued During Period Shares Stock Options Exercised StockIssuedDuringPeriodSharesStockOptionsExercised	6636	shares
CY2021	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Exercises In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageExercisePrice	7.61
CY2021	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Forfeitures In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresInPeriod	10750	shares
CY2021	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Forfeitures In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsForfeituresInPeriodWeightedAverageExercisePrice	11.44
CY2021Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber	1235067	shares
CY2021Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice	9.72
CY2021	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Outstanding Weighted Average Remaining Contractual Term2 SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsOutstandingWeightedAverageRemainingContractualTerm2	P5Y1M6D
CY2021Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Intrinsic Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue	3622000	USD
CY2021Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercisable Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableNumber	356972	shares
CY2021Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercisable Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageExercisePrice	10.86
CY2021	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Exercisable Weighted Average Remaining Contractual Term1 SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableWeightedAverageRemainingContractualTerm1	P2Y6M
CY2021Q4	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Exercisable Intrinsic Value1 SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableIntrinsicValue1	767000	USD
CY2021Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Vested And Expected To Vest Exercisable Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestExercisableNumber	1035837	shares
CY2021Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Vested And Expected To Vest Exercisable Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestExercisableWeightedAverageExercisePrice	9.80
CY2021	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Vested And Expected To Vest Exercisable Weighted Average Remaining Contractual Term1 SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsVestedAndExpectedToVestExercisableWeightedAverageRemainingContractualTerm1	P4Y10M24D
CY2021Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Vested And Expected To Vest Exercisable Aggregate Intrinsic Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestExercisableAggregateIntrinsicValue	2993000	USD
CY2021	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Expected Volatility Rate ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate	0.4946
CY2020	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Expected Volatility Rate ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate	0.4440
CY2019	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Expected Volatility Rate ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate	0.3561
CY2021	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Risk Free Interest Rate ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRate	0.0081
CY2020	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Risk Free Interest Rate ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRate	0.0058
CY2019	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Risk Free Interest Rate ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRate	0.0249
CY2021	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Fair Value Assumptions Expected Term1 SharebasedCompensationArrangementBySharebasedPaymentAwardFairValueAssumptionsExpectedTerm1	P4Y9M
CY2020	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Fair Value Assumptions Expected Term1 SharebasedCompensationArrangementBySharebasedPaymentAwardFairValueAssumptionsExpectedTerm1	P4Y9M
CY2019	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Fair Value Assumptions Expected Term1 SharebasedCompensationArrangementBySharebasedPaymentAwardFairValueAssumptionsExpectedTerm1	P4Y9M
CY2021	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Expected Dividend Payments ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedDividendPayments	0.0162	USD
CY2020	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Expected Dividend Payments ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedDividendPayments	0	USD
CY2019	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Expected Dividend Payments ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedDividendPayments	0	USD
CY2021Q4	us-gaap	Share Price SharePrice	3.65
CY2020Q4	us-gaap	Share Price SharePrice	2.41
CY2019Q4	us-gaap	Share Price SharePrice	3.59
CY2021Q4	us-gaap	Employee Service Share Based Compensation Nonvested Awards Total Compensation Cost Not Yet Recognized Stock Options EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedStockOptions	1900000	USD
CY2021	us-gaap	Employee Service Share Based Compensation Nonvested Awards Total Compensation Cost Not Yet Recognized Period For Recognition1 EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedPeriodForRecognition1	P3Y2M12D
CY2021	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercises In Period Total Intrinsic Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodTotalIntrinsicValue	30000	USD
CY2019	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercises In Period Total Intrinsic Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodTotalIntrinsicValue	29000	USD
CY2020	us-gaap	Stock Issued During Period Shares Stock Options Exercised StockIssuedDuringPeriodSharesStockOptionsExercised	0	shares
CY2021Q4	us-gaap	Common Stock Shares Authorized CommonStockSharesAuthorized	400000000	shares
CY2021	taco	Common Stock Numberof Votes Entitledto Each Share CommonStockNumberofVotesEntitledtoEachShare	1	vote
CY2021Q4	us-gaap	Common Stock Shares Issued CommonStockSharesIssued	36397054	shares
CY2021Q4	us-gaap	Preferred Stock Shares Authorized PreferredStockSharesAuthorized	1000000	shares
CY2021Q4	us-gaap	Preferred Stock Shares Outstanding PreferredStockSharesOutstanding	0	shares
CY2021Q4	us-gaap	Preferred Stock Shares Issued PreferredStockSharesIssued	0	shares
CY2021	us-gaap	Common Stock Dividends Per Share Cash Paid CommonStockDividendsPerShareCashPaid	0.04
CY2021	us-gaap	Dividends Common Stock Cash DividendsCommonStockCash	5900000	USD
CY2021	us-gaap	Net Income Loss NetIncomeLoss	5721000	USD
CY2020	us-gaap	Net Income Loss NetIncomeLoss	-89738000	USD
CY2019	us-gaap	Net Income Loss NetIncomeLoss	-118285000	USD
CY2021	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	36565678	shares
CY2020	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	37161921	shares
CY2019	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	37018445	shares
CY2021	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	36998514	shares
CY2020	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	37161921	shares
CY2019	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	37018445	shares
CY2021	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.16
CY2020	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	-2.41
CY2019	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	-3.20
CY2021	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.15
CY2020	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	-2.41
CY2019	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	-3.20
CY2021	us-gaap	Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount	672185	shares
CY2020	us-gaap	Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount	3930968	shares
CY2019	us-gaap	Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount	6661450	shares
CY2020	us-gaap	Deferred State And Local Income Tax Expense Benefit DeferredStateAndLocalIncomeTaxExpenseBenefit	-2519000	USD
CY2019	us-gaap	Deferred State And Local Income Tax Expense Benefit DeferredStateAndLocalIncomeTaxExpenseBenefit	-437000	USD
CY2021	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	2853000	USD
CY2020	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	4058000	USD
CY2019	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	3311000	USD
CY2021	us-gaap	Current State And Local Tax Expense Benefit CurrentStateAndLocalTaxExpenseBenefit	1391000	USD
CY2020	us-gaap	Current State And Local Tax Expense Benefit CurrentStateAndLocalTaxExpenseBenefit	1920000	USD
CY2019	us-gaap	Current State And Local Tax Expense Benefit CurrentStateAndLocalTaxExpenseBenefit	1643000	USD
CY2021	us-gaap	Current Federal State And Local Tax Expense Benefit CurrentFederalStateAndLocalTaxExpenseBenefit	4244000	USD
CY2020	us-gaap	Current Federal State And Local Tax Expense Benefit CurrentFederalStateAndLocalTaxExpenseBenefit	5978000	USD
CY2019	us-gaap	Current Federal State And Local Tax Expense Benefit CurrentFederalStateAndLocalTaxExpenseBenefit	4954000	USD
CY2021	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	-1222000	USD
CY2020	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	-5521000	USD
CY2019	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	-146000	USD
CY2021	us-gaap	Deferred State And Local Income Tax Expense Benefit DeferredStateAndLocalIncomeTaxExpenseBenefit	-537000	USD
CY2021	us-gaap	Deferred Federal State And Local Tax Expense Benefit DeferredFederalStateAndLocalTaxExpenseBenefit	-1759000	USD
CY2020	us-gaap	Deferred Federal State And Local Tax Expense Benefit DeferredFederalStateAndLocalTaxExpenseBenefit	-8040000	USD
CY2019	us-gaap	Deferred Federal State And Local Tax Expense Benefit DeferredFederalStateAndLocalTaxExpenseBenefit	-583000	USD
CY2021	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	2485000	USD
CY2020	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	-2062000	USD
CY2019	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	4371000	USD
CY2021	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.303
CY2020	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.022
CY2019	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	-0.038
CY2021	us-gaap	Income Tax Reconciliation Income Tax Expense Benefit At Federal Statutory Income Tax Rate IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate	1723000	USD
CY2021	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.210
CY2020	us-gaap	Income Tax Reconciliation Income Tax Expense Benefit At Federal Statutory Income Tax Rate IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate	-19278000	USD
CY2020	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.210
CY2019	us-gaap	Income Tax Reconciliation Income Tax Expense Benefit At Federal Statutory Income Tax Rate IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate	-23922000	USD
CY2019	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.210
CY2021	us-gaap	Income Tax Reconciliation State And Local Income Taxes IncomeTaxReconciliationStateAndLocalIncomeTaxes	672000	USD
CY2021	us-gaap	Effective Income Tax Rate Reconciliation State And Local Income Taxes EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxes	0.082
CY2020	us-gaap	Income Tax Reconciliation State And Local Income Taxes IncomeTaxReconciliationStateAndLocalIncomeTaxes	-288000	USD
CY2020	us-gaap	Effective Income Tax Rate Reconciliation State And Local Income Taxes EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxes	0.003
CY2019	us-gaap	Income Tax Reconciliation State And Local Income Taxes IncomeTaxReconciliationStateAndLocalIncomeTaxes	1302000	USD
CY2019	us-gaap	Effective Income Tax Rate Reconciliation State And Local Income Taxes EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxes	-0.011
CY2021	us-gaap	Income Tax Reconciliation Nondeductible Expense Impairment Losses IncomeTaxReconciliationNondeductibleExpenseImpairmentLosses	0	USD
CY2021	us-gaap	Effective Income Tax Rate Reconciliation Nondeductible Expense Impairment Losses EffectiveIncomeTaxRateReconciliationNondeductibleExpenseImpairmentLosses	0
CY2020	us-gaap	Income Tax Reconciliation Nondeductible Expense Impairment Losses IncomeTaxReconciliationNondeductibleExpenseImpairmentLosses	17590000	USD
CY2020	us-gaap	Effective Income Tax Rate Reconciliation Nondeductible Expense Impairment Losses EffectiveIncomeTaxRateReconciliationNondeductibleExpenseImpairmentLosses	-0.192
CY2019	us-gaap	Income Tax Reconciliation Nondeductible Expense Impairment Losses IncomeTaxReconciliationNondeductibleExpenseImpairmentLosses	27909000	USD
CY2019	us-gaap	Effective Income Tax Rate Reconciliation Nondeductible Expense Impairment Losses EffectiveIncomeTaxRateReconciliationNondeductibleExpenseImpairmentLosses	-0.245
CY2021	taco	Effective Income Tax Rate Reconciliation Tax Credit Targeted Job Credits Amount EffectiveIncomeTaxRateReconciliationTaxCreditTargetedJobCreditsAmount	358000	USD
CY2021	taco	Effective Income Tax Rate Reconciliation Tax Credit Targeted Job Credits Percent EffectiveIncomeTaxRateReconciliationTaxCreditTargetedJobCreditsPercent	0.044
CY2020	taco	Effective Income Tax Rate Reconciliation Tax Credit Targeted Job Credits Amount EffectiveIncomeTaxRateReconciliationTaxCreditTargetedJobCreditsAmount	377000	USD
CY2020	taco	Effective Income Tax Rate Reconciliation Tax Credit Targeted Job Credits Percent EffectiveIncomeTaxRateReconciliationTaxCreditTargetedJobCreditsPercent	-0.004
CY2019	taco	Effective Income Tax Rate Reconciliation Tax Credit Targeted Job Credits Amount EffectiveIncomeTaxRateReconciliationTaxCreditTargetedJobCreditsAmount	712000	USD
CY2019	taco	Effective Income Tax Rate Reconciliation Tax Credit Targeted Job Credits Percent EffectiveIncomeTaxRateReconciliationTaxCreditTargetedJobCreditsPercent	-0.006
CY2021	us-gaap	Income Tax Reconciliation Prior Year Income Taxes IncomeTaxReconciliationPriorYearIncomeTaxes	0	USD
CY2021	us-gaap	Effective Income Tax Rate Reconciliation Prior Year Income Taxes EffectiveIncomeTaxRateReconciliationPriorYearIncomeTaxes	0
CY2020	us-gaap	Income Tax Reconciliation Prior Year Income Taxes IncomeTaxReconciliationPriorYearIncomeTaxes	-175000	USD
CY2020	us-gaap	Effective Income Tax Rate Reconciliation Prior Year Income Taxes EffectiveIncomeTaxRateReconciliationPriorYearIncomeTaxes	0.002
CY2019	us-gaap	Income Tax Reconciliation Prior Year Income Taxes IncomeTaxReconciliationPriorYearIncomeTaxes	0	USD
CY2019	us-gaap	Effective Income Tax Rate Reconciliation Prior Year Income Taxes EffectiveIncomeTaxRateReconciliationPriorYearIncomeTaxes	0
CY2021	taco	Effective Income Tax Rate Reconciliation Executive Compensation Disallowed Amount EffectiveIncomeTaxRateReconciliationExecutiveCompensationDisallowedAmount	359000	USD
CY2021	taco	Effective Income Tax Rate Reconciliation Executive Compensation Disallowed Percent EffectiveIncomeTaxRateReconciliationExecutiveCompensationDisallowedPercent	0.044
CY2020	taco	Effective Income Tax Rate Reconciliation Executive Compensation Disallowed Amount EffectiveIncomeTaxRateReconciliationExecutiveCompensationDisallowedAmount	111000	USD
CY2020	taco	Effective Income Tax Rate Reconciliation Executive Compensation Disallowed Percent EffectiveIncomeTaxRateReconciliationExecutiveCompensationDisallowedPercent	-0.001
CY2019	taco	Effective Income Tax Rate Reconciliation Executive Compensation Disallowed Amount EffectiveIncomeTaxRateReconciliationExecutiveCompensationDisallowedAmount	413000	USD
CY2019	taco	Effective Income Tax Rate Reconciliation Executive Compensation Disallowed Percent EffectiveIncomeTaxRateReconciliationExecutiveCompensationDisallowedPercent	-0.003
CY2021	taco	Effective Income Tax Rate Reconciliation Permanent Tax Differencesand Other Amount EffectiveIncomeTaxRateReconciliationPermanentTaxDifferencesandOtherAmount	89000	USD
CY2021	taco	Effective Income Tax Rate Reconciliation Permanent Tax Differencesand Other Percent EffectiveIncomeTaxRateReconciliationPermanentTaxDifferencesandOtherPercent	0.011
CY2020	taco	Effective Income Tax Rate Reconciliation Permanent Tax Differencesand Other Amount EffectiveIncomeTaxRateReconciliationPermanentTaxDifferencesandOtherAmount	355000	USD
CY2020Q4	us-gaap	Deferred Tax Assets Valuation Allowance DeferredTaxAssetsValuationAllowance	0	USD
CY2020	taco	Effective Income Tax Rate Reconciliation Permanent Tax Differencesand Other Percent EffectiveIncomeTaxRateReconciliationPermanentTaxDifferencesandOtherPercent	-0.004
CY2019	taco	Effective Income Tax Rate Reconciliation Permanent Tax Differencesand Other Amount EffectiveIncomeTaxRateReconciliationPermanentTaxDifferencesandOtherAmount	-619000	USD
CY2019	taco	Effective Income Tax Rate Reconciliation Permanent Tax Differencesand Other Percent EffectiveIncomeTaxRateReconciliationPermanentTaxDifferencesandOtherPercent	0.005
CY2021	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	2485000	USD
CY2021	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.303
CY2020	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	-2062000	USD
CY2020	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.022
CY2019	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	4371000	USD
CY2019	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	-0.038
CY2021Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Self Insurance DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsSelfInsurance	3004000	USD
CY2020Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Self Insurance DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsSelfInsurance	3422000	USD
CY2021Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Restructuring Charges DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsRestructuringCharges	119000	USD
CY2020Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Restructuring Charges DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsRestructuringCharges	161000	USD
CY2021Q4	taco	Deferred Tax Assets Operating Lossand Tax Credit Carryforwards DeferredTaxAssetsOperatingLossandTaxCreditCarryforwards	21000	USD
CY2020Q4	taco	Deferred Tax Assets Operating Lossand Tax Credit Carryforwards DeferredTaxAssetsOperatingLossandTaxCreditCarryforwards	21000	USD
CY2021Q4	us-gaap	Deferred Tax Assets Deferred Income DeferredTaxAssetsDeferredIncome	1710000	USD
CY2020Q4	us-gaap	Deferred Tax Assets Deferred Income DeferredTaxAssetsDeferredIncome	1693000	USD
CY2021Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Compensation And Benefits Share Based Compensation Cost DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsShareBasedCompensationCost	1420000	USD
CY2020Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Compensation And Benefits Share Based Compensation Cost DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsShareBasedCompensationCost	1215000	USD
CY2021Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Compensation And Benefits Employee Compensation DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsEmployeeCompensation	523000	USD
CY2020Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Compensation And Benefits Employee Compensation DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsEmployeeCompensation	591000	USD
CY2021Q4	taco	Deferred Tax Assets Tax Deferred Expense Social Security Taxes DeferredTaxAssetsTaxDeferredExpenseSocialSecurityTaxes	912000	USD
CY2020Q4	taco	Deferred Tax Assets Tax Deferred Expense Social Security Taxes DeferredTaxAssetsTaxDeferredExpenseSocialSecurityTaxes	1822000	USD
CY2021Q4	taco	Deferred Tax Assets Operating Lease Liabilities DeferredTaxAssetsOperatingLeaseLiabilities	71149000	USD
CY2020Q4	taco	Deferred Tax Assets Operating Lease Liabilities DeferredTaxAssetsOperatingLeaseLiabilities	74003000	USD
CY2021Q4	us-gaap	Deferred Tax Assets Other DeferredTaxAssetsOther	1815000	USD
CY2020Q4	us-gaap	Deferred Tax Assets Other DeferredTaxAssetsOther	526000	USD
CY2021Q4	us-gaap	Deferred Tax Assets Gross DeferredTaxAssetsGross	80673000	USD
CY2020Q4	us-gaap	Deferred Tax Assets Gross DeferredTaxAssetsGross	83454000	USD
CY2021Q4	us-gaap	Deferred Tax Assets Valuation Allowance DeferredTaxAssetsValuationAllowance	0	USD
CY2020Q4	us-gaap	Deferred Tax Assets Valuation Allowance DeferredTaxAssetsValuationAllowance	0	USD
CY2021Q4	us-gaap	Deferred Tax Assets Valuation Allowance DeferredTaxAssetsValuationAllowance	0	USD
CY2021Q4	us-gaap	Deferred Tax Assets Net DeferredTaxAssetsNet	80673000	USD
CY2020Q4	us-gaap	Deferred Tax Assets Net DeferredTaxAssetsNet	83454000	USD
CY2021Q4	taco	Deferred Tax Liabilities Property Plantand Equipmentand Intangible Assets DeferredTaxLiabilitiesPropertyPlantandEquipmentandIntangibleAssets	67940000	USD
CY2020Q4	taco	Deferred Tax Liabilities Property Plantand Equipmentand Intangible Assets DeferredTaxLiabilitiesPropertyPlantandEquipmentandIntangibleAssets	68618000	USD
CY2021Q4	us-gaap	Deferred Tax Liabilities Leasing Arrangements DeferredTaxLiabilitiesLeasingArrangements	63116000	USD
CY2020Q4	us-gaap	Deferred Tax Liabilities Leasing Arrangements DeferredTaxLiabilitiesLeasingArrangements	67229000	USD
CY2021Q4	taco	Deferred Tax Liabilities Investmentin Subsidiaries DeferredTaxLiabilitiesInvestmentinSubsidiaries	7147000	USD
CY2020Q4	taco	Deferred Tax Liabilities Investmentin Subsidiaries DeferredTaxLiabilitiesInvestmentinSubsidiaries	7167000	USD
CY2021Q4	us-gaap	Deferred Tax Liabilities Prepaid Expenses DeferredTaxLiabilitiesPrepaidExpenses	1771000	USD
CY2020Q4	us-gaap	Deferred Tax Liabilities Prepaid Expenses DeferredTaxLiabilitiesPrepaidExpenses	1658000	USD
CY2021Q4	us-gaap	Deferred Tax Liabilities Other DeferredTaxLiabilitiesOther	425000	USD
CY2020Q4	us-gaap	Deferred Tax Liabilities Other DeferredTaxLiabilitiesOther	267000	USD
CY2021Q4	us-gaap	Deferred Income Tax Liabilities DeferredIncomeTaxLiabilities	140399000	USD
CY2020Q4	us-gaap	Deferred Income Tax Liabilities DeferredIncomeTaxLiabilities	144939000	USD
CY2021Q4	us-gaap	Deferred Tax Liabilities DeferredTaxLiabilities	59726000	USD
CY2020Q4	us-gaap	Deferred Tax Liabilities DeferredTaxLiabilities	61485000	USD
CY2021Q4	us-gaap	Liability For Uncertain Tax Positions Noncurrent LiabilityForUncertainTaxPositionsNoncurrent	36000	USD
CY2020Q4	us-gaap	Liability For Uncertain Tax Positions Noncurrent LiabilityForUncertainTaxPositionsNoncurrent	38000	USD
CY2021Q4	us-gaap	Unrecognized Tax Benefits That Would Impact Effective Tax Rate UnrecognizedTaxBenefitsThatWouldImpactEffectiveTaxRate	36000	USD
CY2021Q4	taco	Leasehold Tax Bonus Depreciation Percent LeaseholdTaxBonusDepreciationPercent	1
CY2019	taco	Leasehold Accelerated Depreciation LeaseholdAcceleratedDepreciation	1200000	USD
CY2020	taco	Leasehold Accelerated Depreciation LeaseholdAcceleratedDepreciation	2000000	USD
CY2021Q4	taco	Deferred Tax Expense Social Security Taxes DeferredTaxExpenseSocialSecurityTaxes	3400000	USD
CY2021Q4	taco	Cares Act Employee Retention Credit Refundable Payroll Tax Credit Percent CARESActEmployeeRetentionCreditRefundablePayrollTaxCreditPercent	0.50
CY2021Q4	taco	Cares Act Employee Retention Credit Refundable Payroll Tax Credit Amount CARESActEmployeeRetentionCreditRefundablePayrollTaxCreditAmount	600000	USD
CY2021	us-gaap	Operating Lease Cost OperatingLeaseCost	40965000	USD
CY2020	us-gaap	Operating Lease Cost OperatingLeaseCost	40474000	USD
CY2019	us-gaap	Operating Lease Cost OperatingLeaseCost	38816000	USD
CY2021	us-gaap	Finance Lease Right Of Use Asset Amortization FinanceLeaseRightOfUseAssetAmortization	82000	USD
CY2020	us-gaap	Finance Lease Right Of Use Asset Amortization FinanceLeaseRightOfUseAssetAmortization	166000	USD
CY2019	us-gaap	Finance Lease Right Of Use Asset Amortization FinanceLeaseRightOfUseAssetAmortization	451000	USD
CY2021	us-gaap	Finance Lease Interest Expense FinanceLeaseInterestExpense	9000	USD
CY2020	us-gaap	Finance Lease Interest Expense FinanceLeaseInterestExpense	30000	USD
CY2019	us-gaap	Finance Lease Interest Expense FinanceLeaseInterestExpense	95000	USD
CY2021	us-gaap	Short Term Lease Cost ShortTermLeaseCost	165000	USD
CY2020	us-gaap	Short Term Lease Cost ShortTermLeaseCost	291000	USD
CY2019	us-gaap	Short Term Lease Cost ShortTermLeaseCost	421000	USD
CY2021	us-gaap	Variable Lease Cost VariableLeaseCost	2207000	USD
CY2020	us-gaap	Variable Lease Cost VariableLeaseCost	1655000	USD
CY2019	us-gaap	Variable Lease Cost VariableLeaseCost	1769000	USD
CY2021	us-gaap	Sublease Income SubleaseIncome	7272000	USD
CY2020	us-gaap	Sublease Income SubleaseIncome	7270000	USD
CY2019	us-gaap	Sublease Income SubleaseIncome	4448000	USD
CY2021	us-gaap	Lease Cost LeaseCost	36156000	USD
CY2020	us-gaap	Lease Cost LeaseCost	35346000	USD
CY2019	us-gaap	Lease Cost LeaseCost	37104000	USD
CY2021Q4	us-gaap	Operating Lease Right Of Use Asset OperatingLeaseRightOfUseAsset	233960000	USD
CY2020Q4	us-gaap	Operating Lease Right Of Use Asset OperatingLeaseRightOfUseAsset	249071000	USD
CY2021Q4	us-gaap	Operating Lease Liability Current OperatingLeaseLiabilityCurrent	24328000	USD
CY2020Q4	us-gaap	Operating Lease Liability Current OperatingLeaseLiabilityCurrent	22648000	USD
CY2021Q4	us-gaap	Operating Lease Liability Noncurrent OperatingLeaseLiabilityNoncurrent	239476000	USD
CY2020Q4	us-gaap	Operating Lease Liability Noncurrent OperatingLeaseLiabilityNoncurrent	251958000	USD
CY2021Q4	us-gaap	Operating Lease Liability OperatingLeaseLiability	263804000	USD
CY2020Q4	us-gaap	Operating Lease Liability OperatingLeaseLiability	274606000	USD
CY2021Q4	taco	Finance Lease Right Of Use Asset Gross FinanceLeaseRightOfUseAssetGross	76000	USD
CY2020Q4	taco	Finance Lease Right Of Use Asset Gross FinanceLeaseRightOfUseAssetGross	441000	USD
CY2021Q4	taco	Finance Lease Right Of Use Asset Accumulated Depreciation FinanceLeaseRightOfUseAssetAccumulatedDepreciation	-37000	USD
CY2020Q4	taco	Finance Lease Right Of Use Asset Accumulated Depreciation FinanceLeaseRightOfUseAssetAccumulatedDepreciation	-283000	USD
CY2021Q4	us-gaap	Finance Lease Right Of Use Asset FinanceLeaseRightOfUseAsset	39000	USD
CY2020Q4	us-gaap	Finance Lease Right Of Use Asset FinanceLeaseRightOfUseAsset	158000	USD
CY2021Q4	us-gaap	Finance Lease Liability Current FinanceLeaseLiabilityCurrent	13000	USD
CY2020Q4	us-gaap	Finance Lease Liability Current FinanceLeaseLiabilityCurrent	128000	USD
CY2021Q4	us-gaap	Finance Lease Liability Noncurrent FinanceLeaseLiabilityNoncurrent	32000	USD
CY2020Q4	us-gaap	Finance Lease Liability Noncurrent FinanceLeaseLiabilityNoncurrent	46000	USD
CY2021Q4	us-gaap	Finance Lease Liability FinanceLeaseLiability	45000	USD
CY2020Q4	us-gaap	Finance Lease Liability FinanceLeaseLiability	174000	USD
CY2021	taco	Number Of Leases Terminated NumberOfLeasesTerminated	2	location
CY2021	taco	Termination Of Operating Lease Right Of Use Asset TerminationOfOperatingLeaseRightOfUseAsset	400000	USD
CY2021	taco	Termination Of Operating Lease Liability TerminationOfOperatingLeaseLiability	1000000	USD
CY2021	taco	Lease Termination Fee LeaseTerminationFee	800000	USD
CY2021	us-gaap	Gain Loss On Termination Of Lease GainLossOnTerminationOfLease	200000	USD
CY2021	taco	Finance Lease Right Of Use Asset Write Off FinanceLeaseRightOfUseAssetWriteOff	37000	USD
CY2021	taco	Finance Lease Liability Write Off FinanceLeaseLiabilityWriteOff	36000	USD
CY2021	taco	Operating Lease Right Of Use Asset Increase Decrease OperatingLeaseRightOfUseAssetIncreaseDecrease	1000	USD
CY2021Q4	us-gaap	Operating Lease Weighted Average Remaining Lease Term1 OperatingLeaseWeightedAverageRemainingLeaseTerm1	P11Y10M24D
CY2021Q4	us-gaap	Finance Lease Weighted Average Remaining Lease Term1 FinanceLeaseWeightedAverageRemainingLeaseTerm1	P3Y1M6D
CY2021Q4	us-gaap	Operating Lease Weighted Average Discount Rate Percent OperatingLeaseWeightedAverageDiscountRatePercent	0.0650
CY2021Q4	us-gaap	Finance Lease Weighted Average Discount Rate Percent FinanceLeaseWeightedAverageDiscountRatePercent	0.1031
CY2021	us-gaap	Operating Lease Payments OperatingLeasePayments	39626000	USD
CY2020	us-gaap	Operating Lease Payments OperatingLeasePayments	35330000	USD
CY2021	us-gaap	Finance Lease Interest Payment On Liability FinanceLeaseInterestPaymentOnLiability	9000	USD
CY2020	us-gaap	Finance Lease Interest Payment On Liability FinanceLeaseInterestPaymentOnLiability	30000	USD
CY2021Q4	us-gaap	Lessor Operating Lease Payments To Be Received Four Years LessorOperatingLeasePaymentsToBeReceivedFourYears	5999000	USD
CY2021Q4	taco	Lessee Operatingand Finance Lease Liability Payments Net Of Sublease Income Due Year Four LesseeOperatingandFinanceLeaseLiabilityPaymentsNetOfSubleaseIncomeDueYearFour	26218000	USD
CY2021	us-gaap	Finance Lease Principal Payments FinanceLeasePrincipalPayments	93000	USD
CY2020	us-gaap	Finance Lease Principal Payments FinanceLeasePrincipalPayments	163000	USD
CY2021Q4	us-gaap	Finance Lease Liability Payments Due Next Twelve Months FinanceLeaseLiabilityPaymentsDueNextTwelveMonths	17000	USD
CY2021Q4	us-gaap	Lessee Operating Lease Liability Payments Due Next Twelve Months LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths	40672000	USD
CY2021Q4	us-gaap	Lessor Operating Lease Payments To Be Received Next Twelve Months LessorOperatingLeasePaymentsToBeReceivedNextTwelveMonths	6973000	USD
CY2021Q4	taco	Lessee Operating And Finance Lease Liability Payments Net Of Sublease Income Year One LesseeOperatingAndFinanceLeaseLiabilityPaymentsNetOfSubleaseIncomeYearOne	33716000	USD
CY2021Q4	us-gaap	Finance Lease Liability Payments Due Year Two FinanceLeaseLiabilityPaymentsDueYearTwo	17000	USD
CY2021Q4	us-gaap	Lessee Operating Lease Liability Payments Due Year Two LesseeOperatingLeaseLiabilityPaymentsDueYearTwo	38417000	USD
CY2021Q4	us-gaap	Lessor Operating Lease Payments To Be Received Two Years LessorOperatingLeasePaymentsToBeReceivedTwoYears	6315000	USD
CY2021Q4	taco	Lessee Operatingand Finance Lease Liability Payments Net Of Sublease Income Due Year Two LesseeOperatingandFinanceLeaseLiabilityPaymentsNetOfSubleaseIncomeDueYearTwo	32119000	USD
CY2021Q4	us-gaap	Finance Lease Liability Payments Due Year Three FinanceLeaseLiabilityPaymentsDueYearThree	17000	USD
CY2021Q4	us-gaap	Lessee Operating Lease Liability Payments Due Year Three LesseeOperatingLeaseLiabilityPaymentsDueYearThree	34979000	USD
CY2021Q4	us-gaap	Lessor Operating Lease Payments To Be Received Three Years LessorOperatingLeasePaymentsToBeReceivedThreeYears	5654000	USD
CY2021Q4	taco	Lessee Operatingand Finance Lease Liability Payments Net Of Sublease Income Due Year Three LesseeOperatingandFinanceLeaseLiabilityPaymentsNetOfSubleaseIncomeDueYearThree	29342000	USD
CY2021Q4	us-gaap	Finance Lease Liability Payments Due Year Four FinanceLeaseLiabilityPaymentsDueYearFour	1000	USD
CY2021Q4	us-gaap	Lessee Operating Lease Liability Payments Due Year Four LesseeOperatingLeaseLiabilityPaymentsDueYearFour	32216000	USD
CY2021Q4	us-gaap	Finance Lease Liability Payments Due Year Five FinanceLeaseLiabilityPaymentsDueYearFive	0	USD
CY2021Q4	us-gaap	Lessee Operating Lease Liability Payments Due Year Five LesseeOperatingLeaseLiabilityPaymentsDueYearFive	29133000	USD
CY2021Q4	us-gaap	Lessor Operating Lease Payments To Be Received Five Years LessorOperatingLeasePaymentsToBeReceivedFiveYears	5890000	USD
CY2021Q4	taco	Lessee Operatingand Finance Lease Liability Payments Net Of Sublease Income Due Year Five LesseeOperatingandFinanceLeaseLiabilityPaymentsNetOfSubleaseIncomeDueYearFive	23243000	USD
CY2021Q4	us-gaap	Finance Lease Liability Payments Due After Year Five FinanceLeaseLiabilityPaymentsDueAfterYearFive	0	USD
CY2021Q4	us-gaap	Lessee Operating Lease Liability Payments Due After Year Five LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive	210272000	USD
CY2021Q4	us-gaap	Lessor Operating Lease Payments To Be Received Thereafter LessorOperatingLeasePaymentsToBeReceivedThereafter	53635000	USD
CY2021Q4	taco	Lessee Operatingand Finance Lease Liability Payments Net Of Sublease Income Due Year After Year Five LesseeOperatingandFinanceLeaseLiabilityPaymentsNetOfSubleaseIncomeDueYearAfterYearFive	156637000	USD
CY2021Q4	us-gaap	Finance Lease Liability Payments Due FinanceLeaseLiabilityPaymentsDue	52000	USD
CY2021Q4	us-gaap	Lessee Operating Lease Liability Payments Due LesseeOperatingLeaseLiabilityPaymentsDue	385689000	USD
CY2021Q4	us-gaap	Lessor Operating Lease Payments To Be Received LessorOperatingLeasePaymentsToBeReceived	84466000	USD
CY2021Q4	taco	Lessee Operatingand Finance Lease Liability Payments Net Of Sublease Income Due LesseeOperatingandFinanceLeaseLiabilityPaymentsNetOfSubleaseIncomeDue	301275000	USD
CY2021Q4	us-gaap	Finance Lease Liability Undiscounted Excess Amount FinanceLeaseLiabilityUndiscountedExcessAmount	7000	USD
CY2021Q4	us-gaap	Lessee Operating Lease Liability Undiscounted Excess Amount LesseeOperatingLeaseLiabilityUndiscountedExcessAmount	121885000	USD
CY2021Q4	taco	Lessee Operatingand Finance Lease Liability Net Of Sublease Income Undiscounted Excess Amount LesseeOperatingandFinanceLeaseLiabilityNetOfSubleaseIncomeUndiscountedExcessAmount	121892000	USD
CY2021Q4	us-gaap	Finance Lease Liability FinanceLeaseLiability	45000	USD
CY2021Q4	us-gaap	Operating Lease Liability OperatingLeaseLiability	263804000	USD
CY2021Q4	taco	Operatingand Finance Lease Liability OperatingandFinanceLeaseLiability	179383000	USD
CY2021Q4	us-gaap	Number Of Stores NumberOfStores	62	property
CY2021Q4	us-gaap	Lessor Operating Lease Payments To Be Received LessorOperatingLeasePaymentsToBeReceived	84500000	USD
CY2021Q4	taco	Operating Lease Lease Not Yet Commenced Payments OperatingLeaseLeaseNotYetCommencedPayments	2100000	USD
CY2021	taco	Operating Lease Rent Expense Closure Charges OperatingLeaseRentExpenseClosureCharges	1500000	USD
CY2020	taco	Operating Lease Rent Expense Closure Charges OperatingLeaseRentExpenseClosureCharges	1200000	USD
CY2021Q4	taco	Sale Leaseback Transaction Numberof Arrangements SaleLeasebackTransactionNumberofArrangements	2	leaseback_arrangement
CY2021Q4	taco	Sale Leaseback Transaction Numberof Arrangements SaleLeasebackTransactionNumberofArrangements	2	leaseback_arrangement
CY2021	taco	Sale Leaseback Transaction Net Proceeds SaleLeasebackTransactionNetProceeds	3600000	USD
CY2021	taco	Sale Leaseback Transaction Net Proceeds SaleLeasebackTransactionNetProceeds	3600000	USD
CY2021	us-gaap	Sale And Leaseback Transaction Gain Loss Net SaleAndLeasebackTransactionGainLossNet	1200000	USD
CY2019Q4	taco	Sale Leaseback Transaction Numberof Arrangements SaleLeasebackTransactionNumberofArrangements	3	leaseback_arrangement
CY2019Q1	taco	Sale Leaseback Transaction Numberof Arrangements SaleLeasebackTransactionNumberofArrangements	2	leaseback_arrangement
CY2019Q2	taco	Sale Leaseback Transaction Numberof Arrangements SaleLeasebackTransactionNumberofArrangements	1	leaseback_arrangement
CY2019	us-gaap	Sale Leaseback Transaction Net Proceeds Investing Activities SaleLeasebackTransactionNetProceedsInvestingActivities	12700000	USD
CY2019	taco	Sale Leaseback Transaction Lease Term SaleLeasebackTransactionLeaseTerm	P20Y
CY2019	taco	Sale Leaseback Transaction Lease Term SaleLeasebackTransactionLeaseTerm	P20Y
CY2019	us-gaap	Disposal Group Not Discontinued Operation Gain Loss On Disposal DisposalGroupNotDiscontinuedOperationGainLossOnDisposal	200000	USD
CY2021	taco	Guarantor Obligation Lease Term GuarantorObligationLeaseTerm	P18Y
CY2021	taco	Guarantor Obligation Lease Term GuarantorObligationLeaseTerm	P18Y
CY2021Q4	us-gaap	Guarantee Obligations Maximum Exposure GuaranteeObligationsMaximumExposure	1500000	USD
CY2021Q4	us-gaap	Guarantee Obligations Maximum Exposure GuaranteeObligationsMaximumExposure	1500000	USD
CY2021	taco	Guarantor Obligations Remaining Lease Term GuarantorObligationsRemainingLeaseTerm	P10Y
CY2021	taco	Purchase Commitment Extended Term PurchaseCommitmentExtendedTerm	2021
CY2021Q4	us-gaap	Contractual Obligation ContractualObligation	84300000	USD
CY2021	us-gaap	Defined Contribution Plan Employer Discretionary Contribution Amount DefinedContributionPlanEmployerDiscretionaryContributionAmount	100000	USD
CY2021	dei	Auditor Location AuditorLocation	Irvine, California

Files In Submission

Name	View Source	Status
0001585583-22-000009-index-headers.html	Edgar Link	pending
0001585583-22-000009-index.html	Edgar Link	pending
0001585583-22-000009.txt	Edgar Link	pending
0001585583-22-000009-xbrl.zip	Edgar Link	pending
FilingSummary.xml	Edgar Link	unprocessable
Financial_Report.xlsx	Edgar Link	pending
MetaLinks.json	Edgar Link	pending
R1.htm	Edgar Link	pending
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report.css	Edgar Link	pending
Show.js	Edgar Link	pending
taco-20211228.htm	Edgar Link	pending
taco-20211228.xsd	Edgar Link	pending
taco-20211228_cal.xml	Edgar Link	unprocessable
taco-20211228_def.xml	Edgar Link	unprocessable
taco-20211228_g1.gif	Edgar Link	pending
taco-20211228_htm.xml	Edgar Link	completed
taco-20211228_lab.xml	Edgar Link	unprocessable
taco-20211228_pre.xml	Edgar Link	unprocessable
tacoq42021211.htm	Edgar Link	pending
tacoq42021231.htm	Edgar Link	pending
tacoq42021311.htm	Edgar Link	pending
tacoq42021312.htm	Edgar Link	pending
tacoq42021321.htm	Edgar Link	pending
tacoq42021322.htm	Edgar Link	pending

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Del Taco Restaurants, Inc.

2022 Q1 Form 10-K Financial Statement

#000158558322000009 Filed on March 08, 2022

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission