Earnings (Loss) Per Share (Calculation of Basic and Diluted Earnings Per Share) (Detail) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Earnings Per Share [Abstract]
Net Income (Loss) Attributable to Parent	$ (5,225)	$ (10,448)
Shares used to compute basic net income (loss) per share	47,276,000	38,502,000
Weighted Average Number Diluted Shares Outstanding Adjustment	0	0
Shares used to compute diluted net income (loss) per share	47,276,000	38,502,000
Continuing operations, basic (USD per share)	$ (0.11)	$ (0.27)
Diluted net income (loss) per share (USD per share)	$ (0.11)	$ (0.27)