Reconciliation of Income Tax Computed At U. S. Federal Statutory Rate to Income Tax (Benefit) Expense (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Income Tax Disclosure [Abstract]
Tax at U.S. statutory rate	$ 1,456	$ (10,961)	$ (3,514)
State taxes, net of federal benefit	611	219	(190)
Non-deductible meals and entertainment	1,510	1,425	450
Foreign tax expense	(6)	44	554
Valuation allowances	(5,078)	12,038	48,556
Uncertain tax positions	917	(996)	(257)
Deferred tax write-offs	0	0	221
Audit settlements	(624)	0	160
Tax on unrepatriated earnings	0	0	(1,465)
Tax true ups and other	420	(1,553)	(304)
Total income tax (benefit) expense for continuing operations	$ (794)	$ 216	$ 44,211