Stock-based Compensation Plans - Internal Performance Activities (Detail) - Performance-based Internal Performance Awards	9 Months Ended
	Sep. 30, 2022 $ / shares shares
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Outstanding, Beginning Balance | shares	1,095,355
Granted | shares	153,089	[1]
Vested and issued | shares	(243,482)	[2]
Forfeited | shares	0
Outstanding, Ending Balance | shares	1,004,962
Outstanding, Beginning Balance, weighted average grant date fair value | $ / shares	$ 7.80
Granted, weighted average grant date fair value | $ / shares	20.38	[1]
Vested and issued, weighted average grant date fair value | $ / shares	9.64	[2]
Forfeited, weighted average grant date fair value | $ / shares	0
Outstanding, Ending Balance, weighted average grant date fair value | $ / shares	$ 9.27

[1] Amounts granted reflect the number of performance units granted; however, the actual payout of shares will be between zero and 200% depending on achievement of specifically identified performance targets. Units granted in first quarter 2022 were to our CEO, CFO and COO only.

[2] For the awards issued during 2019, the aggregate payout was approximately 116% of target with a positive performance adjustment of 158,793 shares.