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Income Taxes - Reconciliation Between Cash and Stock Dividends Paid and Dividends Paid Deduction (Detail) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2019
Dec. 31, 2018
Dec. 31, 2017
Income Tax Disclosure [Abstract]      
Cash Dividends paid $ 180,092 $ 280,714 $ 304,973
Stock Dividend due to RVI spin-off 0 593,659 0
Total Dividends 180,092 874,373 304,973
Less: Dividends designated to prior year (8,383) (8,383) (5,594)
Plus: Dividends designated from the following year 5,133 8,383 8,383
Less: Return of capital (67,063) (689,544) (226,759)
Dividends paid deduction $ 109,779 $ 184,829 $ 81,003