$OTTR
Otter Tail Corp Stock $ottr

$ottr Overview Financials Valuation SEC Filings Company Website

2019 Q2 Form 10-Q Financial Statement

#000143774919016223 Filed on August 09, 2019

Income Statement

Concept	2019 Q2	2018 Q2	2018 Q1
Revenue	$229.2M	$226.3M	$241.3M
YoY Change	1.26%	6.72%	12.68%
Cost Of Revenue	$117.6M	$107.9M	$110.4M
YoY Change	8.99%	28.43%	16.83%
Gross Profit	$111.6M	$118.4M	$130.9M
YoY Change	-5.74%	-7.55%	9.45%
Gross Profit Margin	48.69%	52.31%	54.26%
Selling, General & Admin
YoY Change
% of Gross Profit
Research & Development
YoY Change
% of Gross Profit
Depreciation & Amortization	$19.44M	$18.75M	$18.76M
YoY Change	3.71%	4.67%	5.09%
% of Gross Profit	17.42%	15.83%	14.33%
Operating Expenses	$84.80M	$88.30M	$93.30M
YoY Change	-3.96%	7.55%	9.25%
Operating Profit	$26.82M	$30.11M	$37.62M
YoY Change	-10.92%	-2.87%	9.97%
Interest Expense	-$7.800M	-$7.700M	-$7.400M
YoY Change	1.3%	2.67%	-1.33%
% of Operating Profit	-29.08%	-25.58%	-19.67%
Other Income/Expense, Net	$850.0K	$707.0K	$1.183M
YoY Change	20.23%	28.08%	113.92%
Pretax Income	$18.77M	$21.75M	$30.01M
YoY Change	-13.71%	-3.82%	15.9%
Income Tax	$3.343M	$3.054M	$3.794M
% Of Pretax Income	17.81%	14.04%	12.64%
Net Earnings	$15.43M	$18.70M	$26.22M
YoY Change	-17.49%	11.43%	33.85%
Net Earnings / Revenue	6.73%	8.26%	10.87%
Basic Earnings Per Share	$0.39	$0.47	$0.66
Diluted Earnings Per Share	$0.39	$0.47	$0.66
COMMON SHARES
Basic Shares Outstanding	39.71M	39.61M	39.55M
Diluted Shares Outstanding	39.92M	39.88M	39.86M

Balance Sheet

Concept	2019 Q2	2018 Q2	2018 Q1
SHORT-TERM ASSETS
Cash & Short-Term Investments	$1.000M	$1.000M	$1.100M
YoY Change	0.0%
Cash & Equivalents	$982.0K	$1.036M	$1.121M
Short-Term Investments
Other Short-Term Assets	$8.511M	$9.574M	$11.21M
YoY Change	-11.1%	-33.29%	-76.55%
Inventory	$105.9M	$90.44M	$88.00M
Prepaid Expenses
Receivables	$105.4M	$91.78M	$94.27M
Other Receivables	$9.956M	$10.22M	$7.109M
Total Short-Term Assets	$263.6M	$239.2M	$240.1M
YoY Change	10.17%	8.43%	9.7%
LONG-TERM ASSETS
Property, Plant & Equipment	$1.602B	$1.553B	$1.546B
YoY Change	3.19%	3.47%	3.98%
Goodwill	$37.57M	$37.57M	$37.57M
YoY Change	0.0%	0.0%
Intangibles	$11.86M	$13.08M	$13.42M
YoY Change	-9.31%	-9.14%
Long-Term Investments	$9.700M	$8.600M	$8.600M
YoY Change	12.79%	4.88%	6.17%
Other Assets	$39.00M	$36.52M	$35.76M
YoY Change	6.8%	3.59%	-78.25%
Total Long-Term Assets	$1.851B	$1.772B	$1.767B
YoY Change	4.48%	2.82%	3.24%
TOTAL ASSETS
Total Short-Term Assets	$263.6M	$239.2M	$240.1M
Total Long-Term Assets	$1.851B	$1.772B	$1.767B
Total Assets	$2.115B	$2.011B	$2.007B
YoY Change	5.16%	3.46%	3.97%
SHORT-TERM LIABILITIES
YoY Change
Accounts Payable	$111.8M	$95.08M	$87.18M
YoY Change	17.63%	0.77%	4.28%
Accrued Expenses	$33.10M	$31.10M	$24.70M
YoY Change	6.43%	2.64%	-13.33%
Deferred Revenue
YoY Change
Short-Term Debt	$36.60M	$20.98M	$30.32M
YoY Change	74.49%	-63.91%	-48.79%
Long-Term Debt Due	$177.0K	$167.0K	$171.0K
YoY Change	5.99%	-99.6%	-99.62%
Total Short-Term Liabilities	$206.1M	$166.2M	$166.1M
YoY Change	24.01%	-29.86%	-29.62%
LONG-TERM LIABILITIES
Long-Term Debt	$590.1M	$590.0M	$589.9M
YoY Change	0.02%	20.31%	20.3%
Other Long-Term Liabilities	$28.86M	$25.06M	$23.48M
YoY Change	15.16%	11.67%	-91.35%
Total Long-Term Liabilities	$618.9M	$615.0M	$613.4M
YoY Change	0.63%	19.93%	-19.49%
TOTAL LIABILITIES
Total Short-Term Liabilities	$206.1M	$166.2M	$166.1M
Total Long-Term Liabilities	$618.9M	$615.0M	$613.4M
Total Liabilities	$825.1M	$781.3M	$779.5M
YoY Change	5.61%	4.19%	-37.72%
SHAREHOLDERS EQUITY
Retained Earnings	$205.1M	$179.6M	$174.2M
YoY Change	14.2%	19.29%
Common Stock	$543.8M	$540.9M	$540.0M
YoY Change	0.53%	0.28%
Preferred Stock
YoY Change
Treasury Stock (at cost)
YoY Change
Treasury Stock Shares
Shareholders Equity	$744.3M	$714.6M	$708.1M
YoY Change
Total Liabilities & Shareholders Equity	$2.115B	$2.011B	$2.007B
YoY Change	5.16%	3.46%	3.97%

Cashflow Statement

Concept	2019 Q2	2018 Q2	2018 Q1
OPERATING ACTIVITIES
Net Income	$15.43M	$18.70M	$26.22M
YoY Change	-17.49%	11.43%	33.85%
Depreciation, Depletion And Amortization	$19.44M	$18.75M	$18.76M
YoY Change	3.71%	4.67%	5.09%
Cash From Operating Activities	$52.10M	$48.80M	$4.640M
YoY Change	6.76%	1.46%	-78.11%
INVESTING ACTIVITIES
Capital Expenditures	-$29.30M	-$25.50M	-$23.60M
YoY Change	14.9%	-3.04%	-21.59%
Acquisitions
YoY Change
Other Investing Activities	-$700.0K	-$400.0K	-$200.0K
YoY Change	75.0%	0.0%	-300.0%
Cash From Investing Activities	-$30.00M	-$25.90M	-$23.83M
YoY Change	15.83%	-2.63%	-20.6%
FINANCING ACTIVITIES
Cash Dividend Paid			$13.29M
YoY Change
Common Stock Issuance & Retirement, Net			$2.409M
YoY Change			-1310.55%
Debt Paid & Issued, Net			$60.00K
YoY Change			-98.04%
Cash From Financing Activities	-22.10M	-23.00M	4.092M
YoY Change	-3.91%	6.98%	-53.54%
NET CHANGE
Cash From Operating Activities	52.10M	48.80M	4.640M
Cash From Investing Activities	-30.00M	-25.90M	-23.83M
Cash From Financing Activities	-22.10M	-23.00M	4.092M
Net Change In Cash	-0.000000007451	-100.0K	-15.10M
YoY Change	-100.0%	1342177279999900.0%
FREE CASH FLOW
Cash From Operating Activities	$52.10M	$48.80M	$4.640M
Capital Expenditures	-$29.30M	-$25.50M	-$23.60M
Free Cash Flow	$81.40M	$74.30M	$28.24M
YoY Change	9.56%	-0.13%	-44.95%

Facts In Submission

Frame	Concept Type	Concept / XBRL Key	Value	Unit
	dei	Entity Central Index Key EntityCentralIndexKey	0001466593
CY2019Q3	dei	Entity Common Stock Shares Outstanding EntityCommonStockSharesOutstanding	39755277
CY2018	us-gaap	Goodwill Impairment Loss GoodwillImpairmentLoss	0	USD
	dei	Entity Registrant Name EntityRegistrantName	Otter Tail Corp
CY2019Q2	us-gaap	Common Stock Par Or Stated Value Per Share CommonStockParOrStatedValuePerShare	5
CY2018Q4	us-gaap	Common Stock Par Or Stated Value Per Share CommonStockParOrStatedValuePerShare	5
CY2019Q2	us-gaap	Common Stock Shares Authorized CommonStockSharesAuthorized	50000000
CY2018Q4	us-gaap	Common Stock Shares Authorized CommonStockSharesAuthorized	50000000
CY2018Q4	us-gaap	Property Plant And Equipment Other PropertyPlantAndEquipmentOther	228120000	USD
CY2019Q2	us-gaap	Common Stock Shares Outstanding CommonStockSharesOutstanding	39754902
CY2018Q4	us-gaap	Common Stock Shares Outstanding CommonStockSharesOutstanding	39664884
CY2019Q2	us-gaap	Construction In Progress Gross ConstructionInProgressGross	73069000	USD
CY2018Q4	us-gaap	Construction In Progress Gross ConstructionInProgressGross	181626000	USD
CY2019Q2	us-gaap	Inventory Net InventoryNet	105860000	USD
CY2018Q4	us-gaap	Inventory Net InventoryNet	106270000	USD
CY2019Q2	us-gaap	Property Plant And Equipment Gross PropertyPlantAndEquipmentGross	2477573000	USD
CY2018Q4	us-gaap	Property Plant And Equipment Gross PropertyPlantAndEquipmentGross	2429467000	USD
CY2019Q2	us-gaap	Unbilled Receivables Current UnbilledReceivablesCurrent	18349000	USD
CY2018Q4	us-gaap	Unbilled Receivables Current UnbilledReceivablesCurrent	23626000	USD
CY2019Q2	us-gaap	Income Taxes Receivable IncomeTaxesReceivable	0	USD
CY2018Q4	us-gaap	Income Taxes Receivable IncomeTaxesReceivable	2439000	USD
CY2019Q2	us-gaap	Accumulated Depreciation Depletion And Amortization Property Plant And Equipment AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment	875475000	USD
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CY2019Q2	us-gaap	Regulatory Assets Current RegulatoryAssetsCurrent	14501000	USD
CY2018Q4	us-gaap	Regulatory Assets Current RegulatoryAssetsCurrent	17225000	USD
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CY2018Q4	us-gaap	Other Assets Current OtherAssetsCurrent	6114000	USD
CY2019Q2	us-gaap	Assets Current AssetsCurrent	263566000	USD
CY2018Q4	us-gaap	Assets Current AssetsCurrent	241420000	USD
CY2019Q2	us-gaap	Long Term Investments LongTermInvestments	9683000	USD
CY2019Q2	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	1602098000	USD
CY2018Q4	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	1581098000	USD
CY2019Q2	ottr	Effective Income Tax Rate Reconciliation At Federal And State Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalAndStateStatutoryIncomeTaxRate	0.26	pure
CY2018Q2	ottr	Effective Income Tax Rate Reconciliation At Federal And State Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalAndStateStatutoryIncomeTaxRate	0.26	pure
	ottr	Effective Income Tax Rate Reconciliation At Federal And State Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalAndStateStatutoryIncomeTaxRate	0.26	pure
	ottr	Effective Income Tax Rate Reconciliation At Federal And State Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalAndStateStatutoryIncomeTaxRate	0.26	pure
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CY2019Q2	us-gaap	Regulatory Assets Noncurrent RegulatoryAssetsNoncurrent	131692000	USD
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CY2018Q4	us-gaap	Other Liabilities Noncurrent OtherLiabilitiesNoncurrent	24326000	USD
CY2019Q2	us-gaap	Deferred Tax Liabilities Noncurrent DeferredTaxLiabilitiesNoncurrent	122035000	USD
CY2018Q4	us-gaap	Deferred Tax Liabilities Noncurrent DeferredTaxLiabilitiesNoncurrent	120976000	USD
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	us-gaap	Regulated And Unregulated Operating Revenue RegulatedAndUnregulatedOperatingRevenue	475175000	USD
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	us-gaap	Utilities Operating Expense Fuel Used UtilitiesOperatingExpenseFuelUsed	27216000	USD
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	us-gaap	Utilities Operating Expense Products And Services UtilitiesOperatingExpenseProductsAndServices	188578000	USD
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	us-gaap	Other Cost And Expense Operating OtherCostAndExpenseOperating	26739000	USD
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	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	37508000	USD
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	us-gaap	Utilities Operating Expense Other UtilitiesOperatingExpenseOther	7859000	USD
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	us-gaap	Costs And Expenses CostsAndExpenses	408787000	USD
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	us-gaap	Operating Income Loss OperatingIncomeLoss	66388000	USD
	us-gaap	Operating Income Loss OperatingIncomeLoss	67720000	USD
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	us-gaap	Interest And Debt Expense InterestAndDebtExpense	15651000	USD
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CY2019Q2	us-gaap	Net Periodic Defined Benefits Expense Reversal Of Expense Excluding Service Cost Component NetPeriodicDefinedBenefitsExpenseReversalOfExpenseExcludingServiceCostComponent	1075000	USD
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	us-gaap	Net Periodic Defined Benefits Expense Reversal Of Expense Excluding Service Cost Component NetPeriodicDefinedBenefitsExpenseReversalOfExpenseExcludingServiceCostComponent	2110000	USD
	us-gaap	Net Periodic Defined Benefits Expense Reversal Of Expense Excluding Service Cost Component NetPeriodicDefinedBenefitsExpenseReversalOfExpenseExcludingServiceCostComponent	2803000	USD
CY2019Q2	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	850000	USD
CY2018Q2	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	707000	USD
	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	2094000	USD
	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	1890000	USD
CY2019Q2	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	18769000	USD
CY2018Q2	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	21750000	USD
	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	50721000	USD
	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	51759000	USD
CY2019Q2	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	3343000	USD
CY2018Q2	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	3054000	USD
	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	8971000	USD
	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	6848000	USD
CY2019Q2	us-gaap	Net Income Loss NetIncomeLoss	15426000	USD
CY2018Q2	us-gaap	Net Income Loss NetIncomeLoss	18696000	USD
	us-gaap	Net Income Loss NetIncomeLoss	41750000	USD
	us-gaap	Net Income Loss NetIncomeLoss	44911000	USD
CY2019Q2	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	39712036
CY2018Q2	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	39605717
	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	39684679
	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	39578296
CY2019Q2	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	39917831
CY2018Q2	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	39879069
	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	39910499
	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	39871376
CY2019Q2	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.39
CY2019Q2	us-gaap	Stockholders Equity StockholdersEquity	744305000	USD
CY2018Q1	us-gaap	Stockholders Equity StockholdersEquity	708050000	USD
CY2019Q2	us-gaap	Net Income Loss NetIncomeLoss	15426000	USD
CY2018Q2	us-gaap	Net Income Loss NetIncomeLoss	18696000	USD
	us-gaap	Net Income Loss NetIncomeLoss	41750000	USD
	us-gaap	Net Income Loss NetIncomeLoss	44911000	USD
CY2019Q2	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Before Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesBeforeTax	4000	USD
CY2018Q2	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Before Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesBeforeTax	-0	USD
	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Before Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesBeforeTax	4000	USD
	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Before Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesBeforeTax	110000	USD
CY2019Q2	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Before Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodBeforeTax	66000	USD
CY2018Q2	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Before Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodBeforeTax	-13000	USD
	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Before Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodBeforeTax	157000	USD
	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Before Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodBeforeTax	-79000	USD
CY2019Q2	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodTax	13000	USD
CY2018Q2	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodTax	-3000	USD
	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodTax	32000	USD
	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodTax	-40000	USD
CY2018Q2	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.47
	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	1.05
	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	1.13
CY2019Q2	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.39
CY2018Q2	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.47
	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	1.05
	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	1.13
CY2019Q2	us-gaap	Other Comprehensive Income Loss Available For Sale Securities Adjustment Net Of Tax OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax	49000	USD
CY2018Q2	us-gaap	Other Comprehensive Income Loss Available For Sale Securities Adjustment Net Of Tax OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax	-10000	USD
	us-gaap	Other Comprehensive Income Loss Available For Sale Securities Adjustment Net Of Tax OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax	121000	USD
	us-gaap	Other Comprehensive Income Loss Available For Sale Securities Adjustment Net Of Tax OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax	-149000	USD
CY2019Q2	us-gaap	Other Comprehensive Income Loss Amortization Adjustment From Aoci Pension And Other Postretirement Benefit Plans For Net Prior Service Cost Credit Before Tax OtherComprehensiveIncomeLossAmortizationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetPriorServiceCostCreditBeforeTax	129000	USD
CY2018Q2	us-gaap	Other Comprehensive Income Loss Amortization Adjustment From Aoci Pension And Other Postretirement Benefit Plans For Net Prior Service Cost Credit Before Tax OtherComprehensiveIncomeLossAmortizationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetPriorServiceCostCreditBeforeTax	233000	USD
	us-gaap	Other Comprehensive Income Loss Amortization Adjustment From Aoci Pension And Other Postretirement Benefit Plans For Net Prior Service Cost Credit Before Tax OtherComprehensiveIncomeLossAmortizationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetPriorServiceCostCreditBeforeTax	259000	USD
	us-gaap	Other Comprehensive Income Loss Amortization Adjustment From Aoci Pension And Other Postretirement Benefit Plans For Net Prior Service Cost Credit Before Tax OtherComprehensiveIncomeLossAmortizationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetPriorServiceCostCreditBeforeTax	460000	USD
CY2019Q2	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansTax	-33000	USD
CY2018Q2	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansTax	-61000	USD
	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansTax	-67000	USD
	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansTax	-120000	USD
CY2019Q2	ottr	Other Comprehensive Income Deferred Tax Rate Adjustment OtherComprehensiveIncomeDeferredTaxRateAdjustment	0	USD
CY2018Q2	ottr	Other Comprehensive Income Deferred Tax Rate Adjustment OtherComprehensiveIncomeDeferredTaxRateAdjustment	0	USD
	ottr	Other Comprehensive Income Deferred Tax Rate Adjustment OtherComprehensiveIncomeDeferredTaxRateAdjustment	0	USD
	ottr	Other Comprehensive Income Deferred Tax Rate Adjustment OtherComprehensiveIncomeDeferredTaxRateAdjustment	-531000	USD
CY2019Q2	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Adjustment Net Of Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax	-96000	USD
CY2018Q2	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Adjustment Net Of Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax	-172000	USD
	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Adjustment Net Of Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax	-192000	USD
	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Adjustment Net Of Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax	191000	USD
CY2019Q2	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	145000	USD
CY2018Q2	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	162000	USD
	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	313000	USD
	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	-340000	USD
CY2019Q2	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	15571000	USD
CY2018Q2	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	18858000	USD
	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	42063000	USD
	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	44571000	USD
CY2019Q1	us-gaap	Stockholders Equity StockholdersEquity	740499000	USD
CY2019Q2	us-gaap	Stock Issued During Period Value New Issues StockIssuedDuringPeriodValueNewIssues	17000	USD
CY2019Q2	us-gaap	Net Income Loss NetIncomeLoss	15426000	USD
CY2019Q2	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	145000	USD
CY2019Q2	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	2148000	USD
CY2019Q2	us-gaap	Dividends Common Stock Cash DividendsCommonStockCash	13930000	USD
	us-gaap	Stock Issued During Period Value New Issues StockIssuedDuringPeriodValueNewIssues	-93000	USD
	us-gaap	Stock Repurchased And Retired During Period Value StockRepurchasedAndRetiredDuringPeriodValue	2450000	USD
	us-gaap	Net Income Loss NetIncomeLoss	44911000	USD
	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	-340000	USD
	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	2253000	USD
	us-gaap	Dividends Common Stock Cash DividendsCommonStockCash	26592000	USD
CY2018Q2	us-gaap	Stock Issued During Period Value New Issues StockIssuedDuringPeriodValueNewIssues	-93000	USD
CY2018Q2	us-gaap	Stock Repurchased And Retired During Period Value StockRepurchasedAndRetiredDuringPeriodValue	41000	USD
CY2018Q2	us-gaap	Net Income Loss NetIncomeLoss	18696000	USD
CY2018Q2	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	162000	USD
CY2018Q2	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	1107000	USD
CY2018Q2	us-gaap	Dividends Common Stock Cash DividendsCommonStockCash	13300000	USD
CY2018Q2	us-gaap	Stockholders Equity StockholdersEquity	714581000	USD
CY2018Q4	us-gaap	Stockholders Equity StockholdersEquity	728863000	USD
	us-gaap	Stock Issued During Period Value New Issues StockIssuedDuringPeriodValueNewIssues	17000	USD
	us-gaap	Stock Repurchased And Retired During Period Value StockRepurchasedAndRetiredDuringPeriodValue	2730000	USD
	us-gaap	Net Income Loss NetIncomeLoss	41750000	USD
	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	313000	USD
	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	3944000	USD
	us-gaap	Dividends Common Stock Cash DividendsCommonStockCash	27852000	USD
CY2019Q2	us-gaap	Stockholders Equity StockholdersEquity	744305000	USD
CY2017Q4	us-gaap	Stockholders Equity StockholdersEquity	696892000	USD
CY2018Q2	us-gaap	Stockholders Equity StockholdersEquity	714581000	USD
	us-gaap	Net Income Loss NetIncomeLoss	41750000	USD
	us-gaap	Net Income Loss NetIncomeLoss	44911000	USD
	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	38572000	USD
	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	37508000	USD
	us-gaap	Income Tax Credits And Adjustments IncomeTaxCreditsAndAdjustments	-674000	USD
	us-gaap	Income Tax Credits And Adjustments IncomeTaxCreditsAndAdjustments	-703000	USD
	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	960000	USD
	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	2076000	USD
	ottr	Increase Decrease In Deferred Charges And Other Assets IncreaseDecreaseInDeferredChargesAndOtherAssets	3884000	USD
	ottr	Increase Decrease In Deferred Charges And Other Assets IncreaseDecreaseInDeferredChargesAndOtherAssets	10309000	USD
	us-gaap	Pension Contributions PensionContributions	10000000	USD
	us-gaap	Pension Contributions PensionContributions	20000000	USD
	ottr	Increase Decrease In Other Operating Liabilities And Increase Decrease In Deferred Liabilities IncreaseDecreaseInOtherOperatingLiabilitiesAndIncreaseDecreaseInDeferredLiabilities	-11942000	USD
	ottr	Increase Decrease In Other Operating Liabilities And Increase Decrease In Deferred Liabilities IncreaseDecreaseInOtherOperatingLiabilitiesAndIncreaseDecreaseInDeferredLiabilities	759000	USD
	us-gaap	Increase Decrease In Allowance For Equity Funds Used During Construction IncreaseDecreaseInAllowanceForEquityFundsUsedDuringConstruction	688000	USD
	us-gaap	Increase Decrease In Allowance For Equity Funds Used During Construction IncreaseDecreaseInAllowanceForEquityFundsUsedDuringConstruction	1060000	USD
	us-gaap	Share Based Compensation ShareBasedCompensation	3944000	USD
	us-gaap	Share Based Compensation ShareBasedCompensation	2253000	USD
	us-gaap	Other Noncash Income Expense OtherNoncashIncomeExpense	-276000	USD
	us-gaap	Other Noncash Income Expense OtherNoncashIncomeExpense	193000	USD
	us-gaap	Increase Decrease In Receivables IncreaseDecreaseInReceivables	30478000	USD
	us-gaap	Increase Decrease In Receivables IncreaseDecreaseInReceivables	25677000	USD
	us-gaap	Increase Decrease In Inventories IncreaseDecreaseInInventories	-410000	USD
	us-gaap	Increase Decrease In Inventories IncreaseDecreaseInInventories	2401000	USD
	us-gaap	Increase Decrease In Other Operating Assets IncreaseDecreaseInOtherOperatingAssets	-2870000	USD
	us-gaap	Increase Decrease In Other Operating Assets IncreaseDecreaseInOtherOperatingAssets	-2428000	USD
	us-gaap	Increase Decrease In Accounts Payable And Accrued Liabilities IncreaseDecreaseInAccountsPayableAndAccruedLiabilities	222000	USD
	us-gaap	Increase Decrease In Accounts Payable And Accrued Liabilities IncreaseDecreaseInAccountsPayableAndAccruedLiabilities	1233000	USD
	ottr	Increase Decrease In Interest Payable And Income Taxes Receivable Payable Net IncreaseDecreaseInInterestPayableAndIncomeTaxesReceivablePayableNet	6297000	USD
	ottr	Increase Decrease In Interest Payable And Income Taxes Receivable Payable Net IncreaseDecreaseInInterestPayableAndIncomeTaxesReceivablePayableNet	3470000	USD
	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	69287000	USD
	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	53395000	USD
	us-gaap	Payments To Acquire Productive Assets PaymentsToAcquireProductiveAssets	54012000	USD
	us-gaap	Payments To Acquire Productive Assets PaymentsToAcquireProductiveAssets	49094000	USD
	us-gaap	Proceeds From Sale Of Productive Assets ProceedsFromSaleOfProductiveAssets	3405000	USD
	us-gaap	Proceeds From Sale Of Productive Assets ProceedsFromSaleOfProductiveAssets	1477000	USD
	us-gaap	Payments For Proceeds From Investments PaymentsForProceedsFromInvestments	4776000	USD
	us-gaap	Payments For Proceeds From Investments PaymentsForProceedsFromInvestments	2102000	USD
	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-55383000	USD
	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-49719000	USD
	ottr	Change In Checks Written In Excess Of Cash ChangeInChecksWrittenInExcessOfCash	1120000	USD
	ottr	Change In Checks Written In Excess Of Cash ChangeInChecksWrittenInExcessOfCash	-2236000	USD
	us-gaap	Proceeds From Repayments Of Short Term Debt ProceedsFromRepaymentsOfShortTermDebt	18003000	USD
	us-gaap	Proceeds From Repayments Of Short Term Debt ProceedsFromRepaymentsOfShortTermDebt	-91394000	USD
	us-gaap	Payments Of Stock Issuance Costs PaymentsOfStockIssuanceCosts	-0	USD
	us-gaap	Payments Of Stock Issuance Costs PaymentsOfStockIssuanceCosts	108000	USD
	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	2730000	USD
	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	2450000	USD
	us-gaap	Proceeds From Issuance Of Long Term Debt ProceedsFromIssuanceOfLongTermDebt	0	USD
	us-gaap	Proceeds From Issuance Of Long Term Debt ProceedsFromIssuanceOfLongTermDebt	100000000	USD
	us-gaap	Payments Of Debt Issuance Costs PaymentsOfDebtIssuanceCosts	-0	USD
	us-gaap	Payments Of Debt Issuance Costs PaymentsOfDebtIssuanceCosts	441000	USD
	us-gaap	Repayments Of Long Term Debt RepaymentsOfLongTermDebt	84000	USD
	us-gaap	Repayments Of Long Term Debt RepaymentsOfLongTermDebt	107000	USD
	us-gaap	Payments Of Dividends PaymentsOfDividends	27852000	USD
	us-gaap	Payments Of Dividends PaymentsOfDividends	26592000	USD
	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	-13783000	USD
	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	-18856000	USD
	us-gaap	Cash And Cash Equivalents Period Increase Decrease CashAndCashEquivalentsPeriodIncreaseDecrease	121000	USD
	us-gaap	Cash And Cash Equivalents Period Increase Decrease CashAndCashEquivalentsPeriodIncreaseDecrease	-15180000	USD
CY2018Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	861000	USD
CY2017Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	16216000	USD
CY2019Q2	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	982000	USD
CY2018Q2	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	1036000	USD
CY2019Q2	us-gaap	Inventory Finished Goods Net Of Reserves InventoryFinishedGoodsNetOfReserves	32699000	USD
CY2018Q4	us-gaap	Inventory Finished Goods Net Of Reserves InventoryFinishedGoodsNetOfReserves	37130000	USD
CY2019Q2	us-gaap	Inventory Work In Process InventoryWorkInProcess	19414000	USD
CY2018Q4	us-gaap	Inventory Work In Process InventoryWorkInProcess	20393000	USD
CY2019Q2	us-gaap	Inventory Raw Materials And Supplies InventoryRawMaterialsAndSupplies	53747000	USD
CY2018Q4	us-gaap	Inventory Raw Materials And Supplies InventoryRawMaterialsAndSupplies	48747000	USD
CY2019Q2	us-gaap	Inventory Net InventoryNet	105860000	USD
CY2018Q4	us-gaap	Inventory Net InventoryNet	106270000	USD
	us-gaap	Goodwill Period Increase Decrease GoodwillPeriodIncreaseDecrease	0	USD
CY2018Q4	us-gaap	Goodwill Gross GoodwillGross	37572000	USD
CY2018Q4	us-gaap	Goodwill Impaired Accumulated Impairment Loss GoodwillImpairedAccumulatedImpairmentLoss	0	USD
CY2018Q4	us-gaap	Goodwill Goodwill	37572000	USD
	us-gaap	Goodwill Period Increase Decrease GoodwillPeriodIncreaseDecrease	0	USD
CY2019Q2	us-gaap	Goodwill Goodwill	37572000	USD
CY2019Q2	us-gaap	Finite Lived Intangible Assets Gross FiniteLivedIntangibleAssetsGross	22645000	USD
CY2019Q2	us-gaap	Finite Lived Intangible Assets Accumulated Amortization FiniteLivedIntangibleAssetsAccumulatedAmortization	10787000	USD
CY2019Q2	us-gaap	Finite Lived Intangible Assets Net FiniteLivedIntangibleAssetsNet	11858000	USD
CY2018Q4	us-gaap	Finite Lived Intangible Assets Gross FiniteLivedIntangibleAssetsGross	22645000	USD
CY2018Q4	us-gaap	Finite Lived Intangible Assets Accumulated Amortization FiniteLivedIntangibleAssetsAccumulatedAmortization	10195000	USD
CY2018Q4	us-gaap	Finite Lived Intangible Assets Net FiniteLivedIntangibleAssetsNet	12450000	USD
CY2019Q2	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	296000	USD
CY2018Q2	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	345000	USD
	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	592000	USD
	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	690000	USD
CY2019Q2	us-gaap	Finite Lived Intangible Assets Amortization Expense Remainder Of Fiscal Year FiniteLivedIntangibleAssetsAmortizationExpenseRemainderOfFiscalYear	1184000	USD
CY2019Q2	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Two FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo	1133000	USD
CY2019Q2	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Three FiniteLivedIntangibleAssetsAmortizationExpenseYearThree	1099000	USD
CY2019Q2	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Four FiniteLivedIntangibleAssetsAmortizationExpenseYearFour	1099000	USD
CY2019Q2	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Five FiniteLivedIntangibleAssetsAmortizationExpenseYearFive	1099000	USD
CY2019Q2	ottr	Accounts Payable Outstanding Related To Capital Additions AccountsPayableOutstandingRelatedToCapitalAdditions	16841000	USD
CY2018Q2	ottr	Accounts Payable Outstanding Related To Capital Additions AccountsPayableOutstandingRelatedToCapitalAdditions	11564000	USD
	us-gaap	Number Of Reportable Segments NumberOfReportableSegments	3	pure
CY2019Q2	us-gaap	Regulated And Unregulated Operating Revenue RegulatedAndUnregulatedOperatingRevenue	229203000	USD
CY2018Q2	us-gaap	Regulated And Unregulated Operating Revenue RegulatedAndUnregulatedOperatingRevenue	226348000	USD
	us-gaap	Regulated And Unregulated Operating Revenue RegulatedAndUnregulatedOperatingRevenue	475175000	USD
	us-gaap	Regulated And Unregulated Operating Revenue RegulatedAndUnregulatedOperatingRevenue	467614000	USD
CY2019Q2	us-gaap	Interest And Debt Expense InterestAndDebtExpense	7825000	USD
CY2018Q2	us-gaap	Interest And Debt Expense InterestAndDebtExpense	7676000	USD
	us-gaap	Interest And Debt Expense InterestAndDebtExpense	15651000	USD
	us-gaap	Interest And Debt Expense InterestAndDebtExpense	15048000	USD
CY2019Q2	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	3343000	USD
CY2018Q2	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	3054000	USD
	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	8971000	USD
	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	6848000	USD
CY2019Q2	us-gaap	Net Income Loss NetIncomeLoss	15426000	USD
CY2018Q2	us-gaap	Net Income Loss NetIncomeLoss	18696000	USD
	us-gaap	Net Income Loss NetIncomeLoss	41750000	USD
	us-gaap	Net Income Loss NetIncomeLoss	44911000	USD
CY2019Q2	us-gaap	Assets Assets	2114944000	USD
CY2018Q4	us-gaap	Assets Assets	2052517000	USD
CY2017	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.35	pure
CY2018	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.21	pure
CY2019Q2	us-gaap	Regulatory Assets Current RegulatoryAssetsCurrent	14501000	USD
CY2019Q2	us-gaap	Regulatory Assets Noncurrent RegulatoryAssetsNoncurrent	131692000	USD
CY2019Q2	us-gaap	Regulatory Assets RegulatoryAssets	146193000	USD
CY2019Q2	us-gaap	Regulatory Liability Current RegulatoryLiabilityCurrent	8959000	USD
CY2019Q2	us-gaap	Regulatory Liability Noncurrent RegulatoryLiabilityNoncurrent	224655000	USD
CY2019Q2	us-gaap	Regulatory Liabilities RegulatoryLiabilities	233614000	USD
CY2019Q2	ottr	Net Regulatory Assets Liability Current NetRegulatoryAssetsLiabilityCurrent	5542000	USD
CY2019Q2	ottr	Net Regulatory Assets Liability Noncurrent NetRegulatoryAssetsLiabilityNoncurrent	-92963000	USD
CY2019Q2	us-gaap	Net Regulatory Assets NetRegulatoryAssets	-87421000	USD
CY2018Q4	us-gaap	Regulatory Assets Current RegulatoryAssetsCurrent	17225000	USD
CY2018Q4	us-gaap	Regulatory Assets Noncurrent RegulatoryAssetsNoncurrent	135257000	USD
CY2018Q4	us-gaap	Regulatory Assets RegulatoryAssets	152482000	USD
CY2018Q4	us-gaap	Regulatory Liability Current RegulatoryLiabilityCurrent	738000	USD
CY2018Q4	us-gaap	Regulatory Liability Noncurrent RegulatoryLiabilityNoncurrent	226469000	USD
CY2018Q4	us-gaap	Regulatory Liabilities RegulatoryLiabilities	227207000	USD
CY2018Q4	ottr	Net Regulatory Assets Liability Current NetRegulatoryAssetsLiabilityCurrent	16487000	USD
CY2018Q4	ottr	Net Regulatory Assets Liability Noncurrent NetRegulatoryAssetsLiabilityNoncurrent	-91212000	USD
CY2018Q4	us-gaap	Net Regulatory Assets NetRegulatoryAssets	-74725000	USD
CY2018Q4	us-gaap	Common Stock Shares Outstanding CommonStockSharesOutstanding	39664884
	ottr	Stock Issued During Period Shares Vesting Of Restricted Stock Units StockIssuedDuringPeriodSharesVestingOfRestrictedStockUnits	26750
	us-gaap	Stock Issued During Period Shares Restricted Stock Award Gross StockIssuedDuringPeriodSharesRestrictedStockAwardGross	15700
	ottr	Directors Deferred Compensation DirectorsDeferredCompensation	594
	ottr	Shares Withheld For Individual Income Tax Requirements SharesWithheldForIndividualIncomeTaxRequirements	55224
CY2019Q2	us-gaap	Common Stock Shares Outstanding CommonStockSharesOutstanding	39754902
CY2018Q2	us-gaap	Incremental Common Shares Attributable To Share Based Payment Arrangements IncrementalCommonSharesAttributableToShareBasedPaymentArrangements	202643
	us-gaap	Incremental Common Shares Attributable To Share Based Payment Arrangements IncrementalCommonSharesAttributableToShareBasedPaymentArrangements	146148
	us-gaap	Incremental Common Shares Attributable To Share Based Payment Arrangements IncrementalCommonSharesAttributableToShareBasedPaymentArrangements	212902
CY2019Q2	ottr	Incremental Common Shares Attributable To Dilutive Effect Of Underlying Shares Related To Nonvested Restricted Stock Units Granted To Employees IncrementalCommonSharesAttributableToDilutiveEffectOfUnderlyingSharesRelatedToNonvestedRestrictedStockUnitsGrantedToEmployees	60168
CY2018Q2	ottr	Incremental Common Shares Attributable To Dilutive Effect Of Underlying Shares Related To Nonvested Restricted Stock Units Granted To Employees IncrementalCommonSharesAttributableToDilutiveEffectOfUnderlyingSharesRelatedToNonvestedRestrictedStockUnitsGrantedToEmployees	57616
CY2019Q2	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	39712036
CY2018Q2	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	39605717
	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	39684679
	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	39578296
CY2019Q2	us-gaap	Incremental Common Shares Attributable To Share Based Payment Arrangements IncrementalCommonSharesAttributableToShareBasedPaymentArrangements	134137
	ottr	Incremental Common Shares Attributable To Dilutive Effect Of Underlying Shares Related To Nonvested Restricted Stock Units Granted To Employees IncrementalCommonSharesAttributableToDilutiveEffectOfUnderlyingSharesRelatedToNonvestedRestrictedStockUnitsGrantedToEmployees	61783
	ottr	Incremental Common Shares Attributable To Dilutive Effect Of Underlying Shares Related To Nonvested Restricted Stock Units Granted To Employees IncrementalCommonSharesAttributableToDilutiveEffectOfUnderlyingSharesRelatedToNonvestedRestrictedStockUnitsGrantedToEmployees	58373
CY2019Q2	ottr	Incremental Common Shares Attributable To Dilutive Effect Of Nonvested Restricted Shares IncrementalCommonSharesAttributableToDilutiveEffectOfNonvestedRestrictedShares	9657
CY2018Q2	ottr	Incremental Common Shares Attributable To Dilutive Effect Of Nonvested Restricted Shares IncrementalCommonSharesAttributableToDilutiveEffectOfNonvestedRestrictedShares	10733
	ottr	Incremental Common Shares Attributable To Dilutive Effect Of Nonvested Restricted Shares IncrementalCommonSharesAttributableToDilutiveEffectOfNonvestedRestrictedShares	15790
	ottr	Incremental Common Shares Attributable To Dilutive Effect Of Nonvested Restricted Shares IncrementalCommonSharesAttributableToDilutiveEffectOfNonvestedRestrictedShares	19188
CY2019Q2	ottr	Incremental Common Shares Attributable To Dilutive Effect Of Shares Expected To Be Issued Under Deferred Compensation Program For Directors IncrementalCommonSharesAttributableToDilutiveEffectOfSharesExpectedToBeIssuedUnderDeferredCompensationProgramForDirectors	1833
CY2018Q2	ottr	Incremental Common Shares Attributable To Dilutive Effect Of Shares Expected To Be Issued Under Deferred Compensation Program For Directors IncrementalCommonSharesAttributableToDilutiveEffectOfSharesExpectedToBeIssuedUnderDeferredCompensationProgramForDirectors	2360
	ottr	Incremental Common Shares Attributable To Dilutive Effect Of Shares Expected To Be Issued Under Deferred Compensation Program For Directors IncrementalCommonSharesAttributableToDilutiveEffectOfSharesExpectedToBeIssuedUnderDeferredCompensationProgramForDirectors	2099
	ottr	Incremental Common Shares Attributable To Dilutive Effect Of Shares Expected To Be Issued Under Deferred Compensation Program For Directors IncrementalCommonSharesAttributableToDilutiveEffectOfSharesExpectedToBeIssuedUnderDeferredCompensationProgramForDirectors	2617
CY2019Q2	us-gaap	Weighted Average Number Diluted Shares Outstanding Adjustment WeightedAverageNumberDilutedSharesOutstandingAdjustment	205795
CY2018Q2	us-gaap	Weighted Average Number Diluted Shares Outstanding Adjustment WeightedAverageNumberDilutedSharesOutstandingAdjustment	273352
	us-gaap	Weighted Average Number Diluted Shares Outstanding Adjustment WeightedAverageNumberDilutedSharesOutstandingAdjustment	225820
	us-gaap	Weighted Average Number Diluted Shares Outstanding Adjustment WeightedAverageNumberDilutedSharesOutstandingAdjustment	293080
CY2019Q2	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	39917831
CY2018Q2	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	39879069
	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	39910499
	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	39871376
CY2019Q2	us-gaap	Employee Service Share Based Compensation Nonvested Awards Total Compensation Cost Not Yet Recognized EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized	5500000	USD
	us-gaap	Employee Service Share Based Compensation Nonvested Awards Total Compensation Cost Not Yet Recognized Period For Recognition1 EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedPeriodForRecognition1	P2Y3M18D
CY2019Q2	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	2148000	USD
CY2018Q2	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	1107000	USD
	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	3944000	USD
	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	2253000	USD
CY2019Q2	ottr	Operating Lease Rightofuse Asset Gross OperatingLeaseRightofuseAssetGross	21651000	USD
CY2019Q2	ottr	Operating Lease Rightofuse Asset Accumulated Amortization OperatingLeaseRightofuseAssetAccumulatedAmortization	2178000	USD
CY2019Q2	us-gaap	Operating Lease Right Of Use Asset OperatingLeaseRightOfUseAsset	19473000	USD
CY2019Q2	us-gaap	Operating Lease Liability Current OperatingLeaseLiabilityCurrent	3784000	USD
CY2019Q2	us-gaap	Operating Lease Liability Noncurrent OperatingLeaseLiabilityNoncurrent	16084000	USD
CY2019Q2	us-gaap	Operating Lease Liability OperatingLeaseLiability	19868000	USD
CY2019Q2	us-gaap	Lessee Operating Lease Liability Payments Remainder Of Fiscal Year LesseeOperatingLeaseLiabilityPaymentsRemainderOfFiscalYear	2625000	USD
CY2019Q2	us-gaap	Lessee Operating Lease Liability Payments Due Year Two LesseeOperatingLeaseLiabilityPaymentsDueYearTwo	4987000	USD
CY2019Q2	us-gaap	Lessee Operating Lease Liability Payments Due Year Three LesseeOperatingLeaseLiabilityPaymentsDueYearThree	4700000	USD
CY2019Q2	us-gaap	Lessee Operating Lease Liability Payments Due Year Four LesseeOperatingLeaseLiabilityPaymentsDueYearFour	3672000	USD
CY2019Q2	us-gaap	Lessee Operating Lease Liability Payments Due Year Five LesseeOperatingLeaseLiabilityPaymentsDueYearFive	3370000	USD
CY2019Q2	us-gaap	Lessee Operating Lease Liability Payments Due After Year Five LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive	8469000	USD
CY2019Q2	us-gaap	Lessee Operating Lease Liability Payments Due LesseeOperatingLeaseLiabilityPaymentsDue	27823000	USD
CY2019Q2	us-gaap	Lessee Operating Lease Liability Undiscounted Excess Amount LesseeOperatingLeaseLiabilityUndiscountedExcessAmount	4429000	USD
CY2019Q2	ottr	Operating Lease Liability Commencing Subsequent To End Date OperatingLeaseLiabilityCommencingSubsequentToEndDate	3526000	USD
CY2019Q2	us-gaap	Operating Lease Liability OperatingLeaseLiability	19868000	USD
CY2019Q2	us-gaap	Operating Lease Weighted Average Remaining Lease Term1 OperatingLeaseWeightedAverageRemainingLeaseTerm1	P5Y9M18D
CY2019Q2	us-gaap	Operating Lease Weighted Average Discount Rate Percent OperatingLeaseWeightedAverageDiscountRatePercent	0.050	pure
CY2018Q4	us-gaap	Operating Lease Liability OperatingLeaseLiability	20369000	USD
	us-gaap	Right Of Use Asset Obtained In Exchange For Operating Lease Liability RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability	1892000	USD
	ottr	Operating Lease Lease Modifications OperatingLeaseLeaseModifications	1366000	USD
	us-gaap	Operating Lease Payments OperatingLeasePayments	1543000	USD
	ottr	Operating Lease Interest OperatingLeaseInterest	516000	USD
CY2019Q2	us-gaap	Operating Lease Liability OperatingLeaseLiability	19868000	USD
CY2019Q2	us-gaap	Operating Lease Cost OperatingLeaseCost	1307000	USD
CY2019Q2	us-gaap	Variable Lease Cost VariableLeaseCost	46000	USD
CY2019Q2	ottr	Rightofuse Lease Cost RightofuseLeaseCost	1353000	USD
	us-gaap	Operating Lease Cost OperatingLeaseCost	2697000	USD
	us-gaap	Variable Lease Cost VariableLeaseCost	73000	USD
CY2019Q2	ottr	Line Of Credit Facility Amount Restricted LineOfCreditFacilityAmountRestricted	8766000	USD
CY2019Q2	us-gaap	Line Of Credit Facility Remaining Borrowing Capacity LineOfCreditFacilityRemainingBorrowingCapacity	254632000	USD
CY2018Q4	us-gaap	Line Of Credit Facility Remaining Borrowing Capacity LineOfCreditFacilityRemainingBorrowingCapacity	281101000	USD
CY2019Q2	us-gaap	Short Term Borrowings ShortTermBorrowings	36602000	USD
CY2019Q2	us-gaap	Long Term Debt LongTermDebt	592438000	USD
CY2019Q2	us-gaap	Long Term Debt Current LongTermDebtCurrent	177000	USD
CY2019Q2	us-gaap	Debt Instrument Unamortized Discount DebtInstrumentUnamortizedDiscount	2198000	USD
	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	51759000	USD
CY2019Q2	ottr	Income Tax Reconciliation Income Tax Expense Benefit At Federal And State Statutory Income Tax Rate IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalAndStateStatutoryIncomeTaxRate	4879000	USD
CY2019Q2	us-gaap	Long Term Debt Noncurrent LongTermDebtNoncurrent	590063000	USD
CY2019Q2	us-gaap	Debt Longterm And Shortterm Combined Amount DebtLongtermAndShorttermCombinedAmount	626842000	USD
CY2018Q4	us-gaap	Short Term Borrowings ShortTermBorrowings	18599000	USD
CY2018Q4	us-gaap	Long Term Debt LongTermDebt	592523000	USD
CY2018Q4	us-gaap	Long Term Debt Current LongTermDebtCurrent	172000	USD
CY2018Q4	us-gaap	Debt Instrument Unamortized Discount DebtInstrumentUnamortizedDiscount	2349000	USD
CY2018Q2	ottr	Income Tax Reconciliation Income Tax Expense Benefit At Federal And State Statutory Income Tax Rate IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalAndStateStatutoryIncomeTaxRate	5655000	USD
	ottr	Income Tax Reconciliation Income Tax Expense Benefit At Federal And State Statutory Income Tax Rate IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalAndStateStatutoryIncomeTaxRate	13187000	USD
	ottr	Income Tax Reconciliation Income Tax Expense Benefit At Federal And State Statutory Income Tax Rate IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalAndStateStatutoryIncomeTaxRate	13457000	USD
CY2019Q2	ottr	Income Tax Reconciliation Differences Reversing In Excess Of Federal Rates IncomeTaxReconciliationDifferencesReversingInExcessOfFederalRates	-774000	USD
CY2018Q2	ottr	Income Tax Reconciliation Differences Reversing In Excess Of Federal Rates IncomeTaxReconciliationDifferencesReversingInExcessOfFederalRates	-1025000	USD
	ottr	Rightofuse Lease Cost RightofuseLeaseCost	2770000	USD
CY2019Q2	us-gaap	Line Of Credit Facility Maximum Borrowing Capacity LineOfCreditFacilityMaximumBorrowingCapacity	300000000	USD
CY2019Q2	us-gaap	Line Of Credit LineOfCredit	36602000	USD
CY2018Q4	us-gaap	Long Term Debt Noncurrent LongTermDebtNoncurrent	590002000	USD
CY2018Q4	us-gaap	Debt Longterm And Shortterm Combined Amount DebtLongtermAndShorttermCombinedAmount	608773000	USD
CY2019Q2	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	18769000	USD
CY2018Q2	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	21750000	USD
	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	50721000	USD
CY2018Q2	ottr	Income Tax Reconciliation Production Tax Credit IncomeTaxReconciliationProductionTaxCredit	930000	USD
	ottr	Income Tax Reconciliation Production Tax Credit IncomeTaxReconciliationProductionTaxCredit	-0	USD
	ottr	Income Tax Reconciliation Production Tax Credit IncomeTaxReconciliationProductionTaxCredit	2050000	USD
CY2019Q2	us-gaap	Income Tax Reconciliation Change In Enacted Tax Rate IncomeTaxReconciliationChangeInEnactedTaxRate	0	USD
CY2018Q2	us-gaap	Income Tax Reconciliation Change In Enacted Tax Rate IncomeTaxReconciliationChangeInEnactedTaxRate	0	USD
	us-gaap	Income Tax Reconciliation Change In Enacted Tax Rate IncomeTaxReconciliationChangeInEnactedTaxRate	0	USD
	us-gaap	Income Tax Reconciliation Change In Enacted Tax Rate IncomeTaxReconciliationChangeInEnactedTaxRate	-531000	USD
	ottr	Income Tax Reconciliation Differences Reversing In Excess Of Federal Rates IncomeTaxReconciliationDifferencesReversingInExcessOfFederalRates	-1757000	USD
	ottr	Income Tax Reconciliation Differences Reversing In Excess Of Federal Rates IncomeTaxReconciliationDifferencesReversingInExcessOfFederalRates	-2098000	USD
CY2019Q2	ottr	Effective Income Tax Rate Reconciliation Deduction Equity Method Stock Awards EffectiveIncomeTaxRateReconciliationDeductionEquityMethodStockAwards	-0	USD
CY2018Q2	ottr	Effective Income Tax Rate Reconciliation Deduction Equity Method Stock Awards EffectiveIncomeTaxRateReconciliationDeductionEquityMethodStockAwards	-0	USD
	ottr	Effective Income Tax Rate Reconciliation Deduction Equity Method Stock Awards EffectiveIncomeTaxRateReconciliationDeductionEquityMethodStockAwards	827000	USD
CY2019Q2	us-gaap	Income Tax Reconciliation Other Reconciling Items IncomeTaxReconciliationOtherReconcilingItems	-73000	USD
CY2018Q2	us-gaap	Income Tax Reconciliation Other Reconciling Items IncomeTaxReconciliationOtherReconcilingItems	-80000	USD
CY2019Q2	us-gaap	Unrecognized Tax Benefits Interest On Income Taxes Accrued UnrecognizedTaxBenefitsInterestOnIncomeTaxesAccrued	0	USD
	us-gaap	Income Tax Reconciliation Other Reconciling Items IncomeTaxReconciliationOtherReconcilingItems	-2000	USD
	us-gaap	Income Tax Reconciliation Other Reconciling Items IncomeTaxReconciliationOtherReconcilingItems	-127000	USD
CY2019Q2	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	3343000	USD
	ottr	Effective Income Tax Rate Reconciliation Deduction Equity Method Stock Awards EffectiveIncomeTaxRateReconciliationDeductionEquityMethodStockAwards	624000	USD
CY2019Q2	ottr	Effective Income Tax Rate Reconciliation Corporate Owned Life Insurance Amount EffectiveIncomeTaxRateReconciliationCorporateOwnedLifeInsuranceAmount	-150000	USD
CY2018Q2	ottr	Effective Income Tax Rate Reconciliation Corporate Owned Life Insurance Amount EffectiveIncomeTaxRateReconciliationCorporateOwnedLifeInsuranceAmount	-17000	USD
	ottr	Effective Income Tax Rate Reconciliation Corporate Owned Life Insurance Amount EffectiveIncomeTaxRateReconciliationCorporateOwnedLifeInsuranceAmount	-559000	USD
	ottr	Effective Income Tax Rate Reconciliation Corporate Owned Life Insurance Amount EffectiveIncomeTaxRateReconciliationCorporateOwnedLifeInsuranceAmount	-25000	USD
CY2019Q2	us-gaap	Income Tax Reconciliation Tax Credits Other IncomeTaxReconciliationTaxCreditsOther	258000	USD
CY2018Q2	us-gaap	Income Tax Reconciliation Tax Credits Other IncomeTaxReconciliationTaxCreditsOther	258000	USD
	us-gaap	Income Tax Reconciliation Tax Credits Other IncomeTaxReconciliationTaxCreditsOther	516000	USD
	us-gaap	Income Tax Reconciliation Tax Credits Other IncomeTaxReconciliationTaxCreditsOther	516000	USD
CY2019Q2	us-gaap	Income Tax Reconciliation Tax Credits Research IncomeTaxReconciliationTaxCreditsResearch	187000	USD
CY2018Q2	us-gaap	Income Tax Reconciliation Tax Credits Research IncomeTaxReconciliationTaxCreditsResearch	180000	USD
	us-gaap	Income Tax Reconciliation Tax Credits Research IncomeTaxReconciliationTaxCreditsResearch	375000	USD
	us-gaap	Income Tax Reconciliation Tax Credits Research IncomeTaxReconciliationTaxCreditsResearch	360000	USD
CY2019Q2	ottr	Income Tax Reconciliation Allowance For Funds Used During Construction IncomeTaxReconciliationAllowanceForFundsUsedDuringConstruction	94000	USD
CY2018Q2	ottr	Income Tax Reconciliation Allowance For Funds Used During Construction IncomeTaxReconciliationAllowanceForFundsUsedDuringConstruction	111000	USD
	ottr	Income Tax Reconciliation Allowance For Funds Used During Construction IncomeTaxReconciliationAllowanceForFundsUsedDuringConstruction	180000	USD
	ottr	Income Tax Reconciliation Allowance For Funds Used During Construction IncomeTaxReconciliationAllowanceForFundsUsedDuringConstruction	278000	USD
CY2019Q2	ottr	Income Tax Reconciliation Production Tax Credit IncomeTaxReconciliationProductionTaxCredit	-0	USD
CY2018Q2	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	3054000	USD
	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	8971000	USD
	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	6848000	USD
CY2019Q2	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.178	pure
CY2018Q2	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.140	pure
	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.177	pure
	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.132	pure
CY2018Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	1282000	USD
CY2017Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	684000	USD
	us-gaap	Unrecognized Tax Benefits Decreases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsDecreasesResultingFromPriorPeriodTaxPositions	0	USD
	us-gaap	Unrecognized Tax Benefits Decreases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsDecreasesResultingFromPriorPeriodTaxPositions	0	USD
	us-gaap	Unrecognized Tax Benefits Increases Resulting From Current Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromCurrentPeriodTaxPositions	75000	USD
	us-gaap	Unrecognized Tax Benefits Increases Resulting From Current Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromCurrentPeriodTaxPositions	72000	USD
	us-gaap	Unrecognized Tax Benefits Decreases Resulting From Settlements With Taxing Authorities UnrecognizedTaxBenefitsDecreasesResultingFromSettlementsWithTaxingAuthorities	42000	USD
	us-gaap	Unrecognized Tax Benefits Decreases Resulting From Settlements With Taxing Authorities UnrecognizedTaxBenefitsDecreasesResultingFromSettlementsWithTaxingAuthorities	44000	USD
CY2019Q2	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	1315000	USD
CY2018Q2	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	712000	USD
	ottr	Period For Unrecognized Tax Benefits Not Expected Change PeriodForUnrecognizedTaxBenefitsNotExpectedChange	P12M

Files In Submission

Name	View Source	Status
0001437749-19-016223-index-headers.html	Edgar Link	pending
0001437749-19-016223-index.html	Edgar Link	pending
0001437749-19-016223.txt	Edgar Link	pending
0001437749-19-016223-xbrl.zip	Edgar Link	pending
ex_150920.htm	Edgar Link	pending
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Financial_Report.xlsx	Edgar Link	pending
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$OTTR
Otter Tail Corp Stock $ottr

2019 Q2 Form 10-Q Financial Statement

#000143774919016223 Filed on August 09, 2019

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

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$OTTR Otter Tail Corp Stock $ottr

2019 Q2 Form 10-Q Financial Statement

#000143774919016223 Filed on August 09, 2019

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$OTTR
Otter Tail Corp Stock $ottr