Income Taxes - Components of Income Tax Expense (Detail) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Income (loss) from continuing operations before taxes:
United States operations	$ (22,533)	$ 27,324	$ 11,871
Foreign operations	27,575	90,775	57,595
Income from continuing operations before taxes	5,042	118,099	69,466
Currently payable:
United States federal	(6,944)	(4,741)	(6,138)
United States state and local	(2,519)	1,303	178
Foreign	14,020	18,572	16,883
Income tax expense (benefit)	4,557	15,134	10,923
Deferred:
United States federal	(22,661)	(1,276)	(4,116)
United States state and local	(424)	(799)	(322)
Foreign	(19,666)	3,732	1,705
Deferred Income tax expense (benefit)	(42,751)	1,657	(2,733)
Total income tax expense (benefit)	$ (38,194)	$ 16,791	$ 8,190