Income Taxes - Components of Comprehensive Provision for Income Taxes Allocation (Detail) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2015
Comprehensive provision for income taxes (benefit) allocable to:
Net loss	$ (822)	$ (1,446)
Other comprehensive income (loss):
Currency translation	1,500	(7,000)
Interest rate swap	(300)
Total	(100)	(9,100)
Valhi Inc
Other comprehensive income (loss):
Marketable securities	(800)	(1,000)
Defined Benefit Pension Plans
Other comprehensive income (loss):
Defined benefit plans	400	400
OPEB
Other comprehensive income (loss):
Defined benefit plans	$ (100)	$ (100)