Label	Element	Value
Stock Issued During Period, Value, New Issues	us-gaap_StockIssuedDuringPeriodValueNewIssues	$ 281,064,000
Stock Issued During Period, Value, New Issues	us-gaap_StockIssuedDuringPeriodValueNewIssues	140,915,000
Stock Issued During Period, Value, Organizational Transactions	shls_StockIssuedDuringPeriodValueOrganizationalTransactions	0
Adjustments to Additional Paid in Capital, Deferred Tax Adjustment	shls_AdjustmentsToAdditionalPaidInCapitalDeferredTaxAdjustment	(20,997,000)
Noncontrolling Interest, Increase (Decrease) from Equity Reallocation	shls_NoncontrollingInterestIncreaseDecreaseFromEquityReallocation	0
Shares Issued, Value, Share-Based Payment Arrangement, after Forfeiture	us-gaap_StockIssuedDuringPeriodValueShareBasedCompensation	(137,000)
Stock Issued During Period, Value, Acquisitions	us-gaap_StockIssuedDuringPeriodValueAcquisitions	6,500,000
Stock Repurchased During Period, Value	us-gaap_StockRepurchasedDuringPeriodValue	281,064,000
APIC, Share-Based Payment Arrangement, Increase for Cost Recognition	us-gaap_AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	9,481,000
Adjustments To Additional Paid In Capital, Deferred Tax Adjustment, Acquisition	shls_AdjustmentsToAdditionalPaidInCapitalDeferredTaxAdjustmentAcquisition	238,000
Retained Earnings [Member]
Stock Issued During Period, Value, Organizational Transactions	shls_StockIssuedDuringPeriodValueOrganizationalTransactions	(92,806,000)
Net Income (Loss), Including Portion Attributable to Noncontrolling Interest	us-gaap_ProfitLoss	(327,000)
Additional Paid-in Capital [Member]
Stock Issued During Period, Value, New Issues	us-gaap_StockIssuedDuringPeriodValueNewIssues	69,939,000
Stock Issued During Period, Value, New Issues	us-gaap_StockIssuedDuringPeriodValueNewIssues	281,064,000
Adjustments to Additional Paid in Capital, Deferred Tax Adjustment	shls_AdjustmentsToAdditionalPaidInCapitalDeferredTaxAdjustment	(20,997,000)
Noncontrolling Interest, Increase (Decrease) from Equity Reallocation	shls_NoncontrollingInterestIncreaseDecreaseFromEquityReallocation	(7,240,000)
Shares Issued, Value, Share-Based Payment Arrangement, after Forfeiture	us-gaap_StockIssuedDuringPeriodValueShareBasedCompensation	(3,755,000)
Stock Issued During Period, Value, Acquisitions	us-gaap_StockIssuedDuringPeriodValueAcquisitions	6,500,000
Stock Repurchased During Period, Value	us-gaap_StockRepurchasedDuringPeriodValue	281,064,000
APIC, Share-Based Payment Arrangement, Increase for Cost Recognition	us-gaap_AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	9,481,000
Adjustments To Additional Paid In Capital, Deferred Tax Adjustment, Acquisition	shls_AdjustmentsToAdditionalPaidInCapitalDeferredTaxAdjustmentAcquisition	238,000
Noncontrolling Interest [Member]
Stock Issued During Period, Value, New Issues	us-gaap_StockIssuedDuringPeriodValueNewIssues	70,976,000
Stock Issued During Period, Value, Organizational Transactions	shls_StockIssuedDuringPeriodValueOrganizationalTransactions	(88,644,000)
Noncontrolling Interest, Increase (Decrease) from Equity Reallocation	shls_NoncontrollingInterestIncreaseDecreaseFromEquityReallocation	7,240,000
Shares Issued, Value, Share-Based Payment Arrangement, after Forfeiture	us-gaap_StockIssuedDuringPeriodValueShareBasedCompensation	3,618,000
Net Income (Loss), Including Portion Attributable to Noncontrolling Interest	us-gaap_ProfitLoss	1,596,000
Noncontrolling Interest, Decrease from Distributions to Noncontrolling Interest Holders	us-gaap_MinorityInterestDecreaseFromDistributionsToNoncontrollingInterestHolders	4,837,000
Member Units [Member]
Stock Issued During Period, Value, Organizational Transactions	shls_StockIssuedDuringPeriodValueOrganizationalTransactions	181,448,000
Net Income (Loss), Including Portion Attributable to Noncontrolling Interest	us-gaap_ProfitLoss	2,675,000
Common Class B [Member] | Common Stock [Member]
Stock Issued During Period, Value, Organizational Transactions	shls_StockIssuedDuringPeriodValueOrganizationalTransactions	$ 1,000
Stock Issued During Period, Shares, Conversion of Units	us-gaap_StockIssuedDuringPeriodSharesConversionOfUnits	(7,870,042)
Stock Issued During Period, Shares, New Issues	us-gaap_StockIssuedDuringPeriodSharesNewIssues	(5,234,210)
Stock Issued During Period, Shares, Organizational Transactions	shls_StockIssuedDuringPeriodSharesOrganizationalTransactions	78,300,817
Stock Repurchased During Period, Shares	us-gaap_StockRepurchasedDuringPeriodShares	10,402,086
Common Class A [Member] | Common Stock [Member]
Stock Issued During Period, Value, Organizational Transactions	shls_StockIssuedDuringPeriodValueOrganizationalTransactions	$ 1,000
Stock Issued During Period, Shares, Conversion of Units	us-gaap_StockIssuedDuringPeriodSharesConversionOfUnits	7,870,042
Stock Issued During Period, Shares, New Issues	us-gaap_StockIssuedDuringPeriodSharesNewIssues	10,402,086
Stock Issued During Period, Shares, New Issues	us-gaap_StockIssuedDuringPeriodSharesNewIssues	11,550,000
Shares Issued, Shares, Share-Based Payment Arrangement, after Forfeiture	us-gaap_StockIssuedDuringPeriodSharesShareBasedCompensation	40,665
Stock Issued During Period, Shares, Organizational Transactions	shls_StockIssuedDuringPeriodSharesOrganizationalTransactions	81,977,751
Stock Issued During Period, Shares, Acquisitions	us-gaap_StockIssuedDuringPeriodSharesAcquisitions	209,437