Basis of Presentation and Significant Accounting Policies - Schedule of Reconciliation of Number of Shares Used For Basic and Diluted EPS Computation (Detail) - shares shares in Thousands	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Basis Of Presentation And Significant Accounting Policies [Line Items]
Weighted average Ordinary Shares outstanding for basic EPS	13,115	13,115
Adjusted weighted average Ordinary Shares outstanding for diluted EPS	13,115	13,115
Restricted Shares Equity Award
Basis Of Presentation And Significant Accounting Policies [Line Items]
Restricted share equity awards	0	0