GENERAL - Reconciliation of Company's Weighted-average Number of Outstanding Common Shares and Common Limited Partner Units (Detail) - shares shares in Thousands		3 Months Ended		9 Months Ended
		Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Organization, Consolidation and Presentation of Financial Statements Disclosure [Line Items]
Weighted average number of outstanding common shares—basic	[1]	117,819	38,916	103,341	38,438
Weighted average number of outstanding common shares—diluted	[1]	117,819	38,916	103,341	38,438
Weighted average number of common limited partner units—basic			38,916		38,438
Weighted average number of common limited partner units—diluted			38,916		38,438

[1] For the three and nine months ended September 30, 2020, represents weighted average number of common shares outstanding and for the three and nine months ended September 30, 2019, represents weighted average number of common limited partner units outstanding.