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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Number of shares issued during the period related to Restricted Stock Awards, net of any shares forfeited.

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Net Income Per Share of Common Stock (Detail) - shares	3 Months Ended		6 Months Ended
Net Income Per Share of Common Stock (Detail) - shares	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019	Dec. 31, 2019	Dec. 31, 2018
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Stock Issued During Period, Shares, Restricted Stock Award, Net of Forfeitures	10,000	103,000	367,000	610,000
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number	4,483,000	5,464,000	4,483,000	5,464,000	4,427,000	5,135,000
Employee Stock Option [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount	8,000	48,000	180,000	56,000
Restricted Stock [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number	3,347,390		3,347,390
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount	2,477,000		2,532,000