Income (Loss) Before Income Taxes, Attributable To Noncontrolling Interest

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- Definition

Income Tax Expense (Benefit), Portion Attributable To Parent

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- Definition

Net Income (Loss) Before Income Taxes, Attributable To Parent

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No definition available.

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- Definition

Securities (including those issuable pursuant to contingent stock agreements) that could potentially dilute basic earnings per share (EPS) or earnings per unit (EPU) in the future that were not included in the computation of diluted EPS or EPU because to do so would increase EPS or EPU amounts or decrease loss per share or unit amounts for the period presented.

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- Definition

The amount of net income (loss) for the period per each share of common stock or unit outstanding during the reporting period.

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- Definition

The amount of net income (loss) for the period available to each share of common stock or common unit outstanding during the reporting period and to each share or unit that would have been outstanding assuming the issuance of common shares or units for all dilutive potential common shares or units outstanding during the reporting period.

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- Definition

Amount of income (loss) from continuing operations, including income (loss) from equity method investments, before deduction of income tax expense (benefit), and income (loss) attributable to noncontrolling interest.

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- Definition

Amount, after deduction of tax, noncontrolling interests, dividends on preferred stock and participating securities; of income (loss) available to common shareholders.

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- Definition

The sum of dilutive potential common shares or units used in the calculation of the diluted per-share or per-unit computation.

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The average number of shares or units issued and outstanding that are used in calculating diluted EPS or earnings per unit (EPU), determined based on the timing of issuance of shares or units in the period.

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Number of [basic] shares or units, after adjustment for contingently issuable shares or units and other shares or units not deemed outstanding, determined by relating the portion of time within a reporting period that common shares or units have been outstanding to the total time in that period.

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Earnings per Share (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2019	Sep. 30, 2019	Jun. 30, 2019	Mar. 31, 2019	Dec. 31, 2018	Sep. 30, 2018	Jun. 30, 2018	Mar. 31, 2018	Dec. 31, 2019	Dec. 31, 2018
Pro forma earnings per share:
Income (loss) before taxes									$ 11,686	$ (18,218)
Less: income (loss) before taxes attributable to non-controlling interests									6,956	(9,702)
Income (loss) before taxes attributable to GSHD									4,730	(8,516)
Less: income tax expense attributable to GSHD									1,163	387
Net income (loss) attributable to GSHD									$ 3,567	$ (8,903)
Weighted average shares of Class A common stock outstanding - basic (in shares)									14,864	13,554
Effect of dilutive securities, stock options (in shares)									1,236	0
Weighted average shares of Class A common stock outstanding - diluted									16,100	13,554
Basic (in dollars per share)	$ 0.06	$ 0.07	$ 0.06	$ 0.17	$ 0.01	$ 0.02	$ (0.68)	$ 0.08	$ 0.24	$ (0.66)
Diluted (in dollars per share)	$ 0.05	$ 0.06	$ 0.06	$ 0.16	$ 0.01	$ 0.02	$ (0.68)	$ 0.08	$ 0.22	$ (0.66)
Employee Stock Option
Pro forma earnings per share:
Antidilutive securities excluded (in shares)									1,650