Income Taxes Significant Differences Between U.S. Federal Statutory Rate and Effective Income Tax Rate Footnote (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Schedule Of Effective Tax Rates Line Items
Foreign income tax rate differential	40.50%	8.40%	3.70%
Income tax expense	$ 29,446	$ 54,425	$ 88,161
Germany | Foreign Country
Schedule Of Effective Tax Rates Line Items
Income tax expense	$ 27,900
Jordan Bromine Company Limited
Schedule Of Effective Tax Rates Line Items
Foreign income tax rate differential	34.60%	11.90%	8.00%
Change in valuation allowance, change in expected profitability
Schedule Of Effective Tax Rates Line Items
Change in valuation allowance	$ 6,000		$ 2,100