Income Taxes - Reconciliation of U.S. Statutory Rate to Effective Income Tax Rate on Continuing Basis (Detail)	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Effective Tax Rate Reconciliation [Line Items]
Statutory rate	21.00%	35.00%	35.00%
State income taxes, net of federal income tax effect	2.40%	2.00%	100.50%
Foreign tax credit	2.10%	4.30%	47.00%
Foreign rate differential	0.50%	(28.20%)	(319.10%)
Resolution of tax contingencies, net of increases	0.20%	(5.00%)	(112.40%)
Valuation allowance reserve (decrease) increase	0.80%	(7.40%)	(149.50%)
Manufacturing deduction		(1.30%)	(60.70%)
Foreign statutory tax rate change		(2.70%)	(52.90%)
Impairment	(9.30%)	2.80%
Sale of businesses		(11.80%)
Reversal of outside basis difference		(11.40%)
U.S. Tax Reform, impact of change in tax rate and other		(269.20%)
U.S. Tax Reform, federal income tax on mandatory deemed repatriation	0.20%	29.70%
Other		(1.90%)	(60.20%)
Effective rate	17.90%	(265.10%)	306.00%
Tools [Member]
Effective Tax Rate Reconciliation [Line Items]
Other			878.30%