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v3.21.2

Label | Element | Value
--- | --- | ---
Stockholders' Equity, Effect Of Reorganization | step_StockholdersEquityEffectOfReorganization | $ 0
Stockholders' Equity, Effect Of Reorganization | step_StockholdersEquityEffectOfReorganization | 0
APIC, Share-based Payment Arrangement, Increase for Cost Recognition | us-gaap_AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue | 710,000
Partners' Capital Account, Sale of Units | us-gaap_PartnersCapitalAccountSaleOfUnits | 3,308,000
Stock Issued During Period, Value, New Issues | us-gaap_StockIssuedDuringPeriodValueNewIssues | 337,798,000
Stock Issued During Period, Value, New Issues | us-gaap_StockIssuedDuringPeriodValueNewIssues | 337,798,000
Partners' Capital Account, Distributions | us-gaap_PartnersCapitalAccountDistributions | 12,000
Partners' Capital Account, Distributions | us-gaap_PartnersCapitalAccountDistributions | 63,585,000
Partners' Capital Account, Distributions | us-gaap_PartnersCapitalAccountDistributions | 34,279,000
Partners' Capital Account, Treasury Units, Purchased | us-gaap_PartnersCapitalAccountTreasuryUnitsPurchases | 3,308,000
Partners' Capital Account, Reallocation Between Controlling And Non-Controlling Interest | step_PartnersCapitalAccountReallocationBetweenControllingAndNonControllingInterest | 0
Partners' Capital Account, Reallocation Between Controlling And Non-Controlling Interest | step_PartnersCapitalAccountReallocationBetweenControllingAndNonControllingInterest | 0
Partners' Capital Account, Reallocation Between Controlling And Non-Controlling Interest | step_PartnersCapitalAccountReallocationBetweenControllingAndNonControllingInterest | 0
Adjustments To Additional Paid In Capital, Deferred Tax Effect Of Exchange | step_AdjustmentsToAdditionalPaidInCapitalDeferredTaxEffectOfExchange | 7,128,000
Partners' Capital Account, Contributions | us-gaap_PartnersCapitalAccountContributions | 27,000
Partners' Capital Account, Contributions | us-gaap_PartnersCapitalAccountContributions | 12,000
Adjustments To Additional Paid In Capital, Purchase Of Partnership Interests | step_AdjustmentsToAdditionalPaidInCapitalPurchaseOfPartnershipInterests | 127,986,000
Adjustments To Additional Paid In Capital, Purchase Of Partnership Interests | step_AdjustmentsToAdditionalPaidInCapitalPurchaseOfPartnershipInterests | 127,986,000
Adjustments To Additional Paid In Capital, Reallocation Of Noncontrolling Interest | step_AdjustmentsToAdditionalPaidInCapitalReallocationOfNoncontrollingInterest | 0
Partners' Capital Account, Unit-based Payment Arrangement, Amount | us-gaap_PartnersCapitalAccountUnitBasedCompensation | 725,000
Partners' Capital Account, Unit-based Payment Arrangement, Amount | us-gaap_PartnersCapitalAccountUnitBasedCompensation | 242,000
Adjustments to Additional Paid in Capital, Stock Issued, Issuance Costs | us-gaap_AdjustmentsToAdditionalPaidInCapitalStockIssuedIssuanceCosts | 9,667,000
Adjustments to Additional Paid in Capital, Stock Issued, Issuance Costs | us-gaap_AdjustmentsToAdditionalPaidInCapitalStockIssuedIssuanceCosts | 9,667,000
Limited Partner [Member] |  |
Partners' Capital Account, Sale of Units | us-gaap_PartnersCapitalAccountSaleOfUnits | 0
Partners' Capital Account, Distributions | us-gaap_PartnersCapitalAccountDistributions | 50,424,000
Net Income (Loss), Including Portion Attributable to Noncontrolling Interest | us-gaap_ProfitLoss | 45,265,000
Partners' Capital Account, Treasury Units, Purchased | us-gaap_PartnersCapitalAccountTreasuryUnitsPurchases | 0
Partners' Capital Account, Contributions | us-gaap_PartnersCapitalAccountContributions | 27,000
Partners' Capital Account, Unit-based Payment Arrangement, Amount | us-gaap_PartnersCapitalAccountUnitBasedCompensation | 723,000
Retained Earnings [Member] |  |
Net Income (Loss), Including Portion Attributable to Noncontrolling Interest | us-gaap_ProfitLoss | (790,000)
Partners' Capital [Member] |  |
Stockholders' Equity, Effect Of Reorganization | step_StockholdersEquityEffectOfReorganization | (211,894,000)
Stockholders' Equity, Effect Of Reorganization | step_StockholdersEquityEffectOfReorganization | (211,894,000)
Partners' Capital Account, Distributions | us-gaap_PartnersCapitalAccountDistributions | 25,235,000
Net Income (Loss), Including Portion Attributable to Noncontrolling Interest | us-gaap_ProfitLoss | 101,718,000
Partners' Capital Account, Reallocation Between Controlling And Non-Controlling Interest | step_PartnersCapitalAccountReallocationBetweenControllingAndNonControllingInterest | 252,000
Partners' Capital Account, Reallocation Between Controlling And Non-Controlling Interest | step_PartnersCapitalAccountReallocationBetweenControllingAndNonControllingInterest | 252,000
Partners' Capital Account, Contributions | us-gaap_PartnersCapitalAccountContributions | 12,000
Partners' Capital Account, Unit-based Payment Arrangement, Amount | us-gaap_PartnersCapitalAccountUnitBasedCompensation | 240,000
Noncontrolling Interest [Member] |  |
Partners' Capital Account, Sale of Units | us-gaap_PartnersCapitalAccountSaleOfUnits | 3,308,000
Partners' Capital Account, Distributions | us-gaap_PartnersCapitalAccountDistributions | 13,161,000
Other Comprehensive Income (Loss), Net of Tax | us-gaap_OtherComprehensiveIncomeLossNetOfTax | 216,000
Other Comprehensive Income (Loss), Net of Tax | us-gaap_OtherComprehensiveIncomeLossNetOfTax | 350,000
Net Income (Loss), Including Portion Attributable to Noncontrolling Interest | us-gaap_ProfitLoss | 12,428,000
Net Income (Loss), Including Portion Attributable to Noncontrolling Interest | us-gaap_ProfitLoss | 8,335,000
Partners' Capital Account, Treasury Units, Purchased | us-gaap_PartnersCapitalAccountTreasuryUnitsPurchases | 3,308,000
Partners' Capital Account, Contributions | us-gaap_PartnersCapitalAccountContributions | 0
Partners' Capital Account, Unit-based Payment Arrangement, Amount | us-gaap_PartnersCapitalAccountUnitBasedCompensation | 2,000
Partners' Capital Account, Unit-based Payment Arrangement, Amount | us-gaap_PartnersCapitalAccountUnitBasedCompensation | 2,000
Additional Paid-in Capital [Member] |  |
Stockholders' Equity, Effect Of Reorganization | step_StockholdersEquityEffectOfReorganization | 23,432,000
Stockholders' Equity, Effect Of Reorganization | step_StockholdersEquityEffectOfReorganization | 23,432,000
APIC, Share-based Payment Arrangement, Increase for Cost Recognition | us-gaap_AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue | 219,000
Stock Issued During Period, Value, New Issues | us-gaap_StockIssuedDuringPeriodValueNewIssues | 337,778,000
Stock Issued During Period, Value, New Issues | us-gaap_StockIssuedDuringPeriodValueNewIssues | 337,778,000
Partners' Capital Account, Reallocation Between Controlling And Non-Controlling Interest | step_PartnersCapitalAccountReallocationBetweenControllingAndNonControllingInterest | (103,063,000)
Adjustments To Additional Paid In Capital, Deferred Tax Effect Of Exchange | step_AdjustmentsToAdditionalPaidInCapitalDeferredTaxEffectOfExchange | 7,128,000
Adjustments To Additional Paid In Capital, Purchase Of Partnership Interests | step_AdjustmentsToAdditionalPaidInCapitalPurchaseOfPartnershipInterests | 127,979,000
Adjustments To Additional Paid In Capital, Purchase Of Partnership Interests | step_AdjustmentsToAdditionalPaidInCapitalPurchaseOfPartnershipInterests | 127,979,000
Adjustments To Additional Paid In Capital, Reallocation Of Noncontrolling Interest | step_AdjustmentsToAdditionalPaidInCapitalReallocationOfNoncontrollingInterest | (103,063,000)
Adjustments to Additional Paid in Capital, Stock Issued, Issuance Costs | us-gaap_AdjustmentsToAdditionalPaidInCapitalStockIssuedIssuanceCosts | 2,981,000
Adjustments to Additional Paid in Capital, Stock Issued, Issuance Costs | us-gaap_AdjustmentsToAdditionalPaidInCapitalStockIssuedIssuanceCosts | 2,981,000
AOCI Attributable to Parent [Member] |  |
Stockholders' Equity, Effect Of Reorganization | step_StockholdersEquityEffectOfReorganization | (513,000)
Stockholders' Equity, Effect Of Reorganization | step_StockholdersEquityEffectOfReorganization | (513,000)
Other Comprehensive Income (Loss), Net of Tax | us-gaap_OtherComprehensiveIncomeLossNetOfTax | 335,000
Other Comprehensive Income (Loss), Net of Tax | us-gaap_OtherComprehensiveIncomeLossNetOfTax | 207,000
Other Comprehensive Income (Loss), Net of Tax | us-gaap_OtherComprehensiveIncomeLossNetOfTax | (22,000)
Partnership Of Subsidiary [Member] | Noncontrolling Interest [Member] |  |
Stockholders' Equity, Effect Of Reorganization | step_StockholdersEquityEffectOfReorganization | 188,893,000
Stockholders' Equity, Effect Of Reorganization | step_StockholdersEquityEffectOfReorganization | 188,893,000
APIC, Share-based Payment Arrangement, Increase for Cost Recognition | us-gaap_AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue | 489,000
Partners' Capital Account, Distributions | us-gaap_PartnersCapitalAccountDistributions | 0
Other Comprehensive Income (Loss), Net of Tax | us-gaap_OtherComprehensiveIncomeLossNetOfTax | (50,000)
Net Income (Loss), Including Portion Attributable to Noncontrolling Interest | us-gaap_ProfitLoss | (1,604,000)
Partners' Capital Account, Reallocation Between Controlling And Non-Controlling Interest | step_PartnersCapitalAccountReallocationBetweenControllingAndNonControllingInterest | 103,063,000
Adjustments To Additional Paid In Capital, Reallocation Of Noncontrolling Interest | step_AdjustmentsToAdditionalPaidInCapitalReallocationOfNoncontrollingInterest | 103,063,000
Adjustments to Additional Paid in Capital, Stock Issued, Issuance Costs | us-gaap_AdjustmentsToAdditionalPaidInCapitalStockIssuedIssuanceCosts | 6,686,000
Adjustments to Additional Paid in Capital, Stock Issued, Issuance Costs | us-gaap_AdjustmentsToAdditionalPaidInCapitalStockIssuedIssuanceCosts | 6,686,000
Subsidiaries [Member] | Noncontrolling Interest [Member] |  |
APIC, Share-based Payment Arrangement, Increase for Cost Recognition | us-gaap_AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue | 2,000
Partners' Capital Account, Distributions | us-gaap_PartnersCapitalAccountDistributions | 12,000
Partners' Capital Account, Distributions | us-gaap_PartnersCapitalAccountDistributions | 9,044,000
Other Comprehensive Income (Loss), Net of Tax | us-gaap_OtherComprehensiveIncomeLossNetOfTax | (76,000)
Net Income (Loss), Including Portion Attributable to Noncontrolling Interest | us-gaap_ProfitLoss | 710,000
Partners' Capital Account, Reallocation Between Controlling And Non-Controlling Interest | step_PartnersCapitalAccountReallocationBetweenControllingAndNonControllingInterest | (252,000)
Partners' Capital Account, Reallocation Between Controlling And Non-Controlling Interest | step_PartnersCapitalAccountReallocationBetweenControllingAndNonControllingInterest | (252,000)
Common Class B [Member] | Common Stock [Member] |  |
Stockholders' Equity, Effect Of Reorganization | step_StockholdersEquityEffectOfReorganization | 73,000
Stockholders' Equity, Effect Of Reorganization | step_StockholdersEquityEffectOfReorganization | 73,000
Adjustments To Additional Paid In Capital, Purchase Of Partnership Interests | step_AdjustmentsToAdditionalPaidInCapitalPurchaseOfPartnershipInterests | 7,000
Adjustments To Additional Paid In Capital, Purchase Of Partnership Interests | step_AdjustmentsToAdditionalPaidInCapitalPurchaseOfPartnershipInterests | 7,000
Common Class A [Member] | Common Stock [Member] |  |
Stockholders' Equity, Effect Of Reorganization | step_StockholdersEquityEffectOfReorganization | 9,000
Stockholders' Equity, Effect Of Reorganization | step_StockholdersEquityEffectOfReorganization | 9,000
Stock Issued During Period, Value, New Issues | us-gaap_StockIssuedDuringPeriodValueNewIssues | 20,000
Stock Issued During Period, Value, New Issues | us-gaap_StockIssuedDuringPeriodValueNewIssues | $ 20,000

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