Income Taxes - Additional Information (Detail) - USD ($)	3 Months Ended	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2015	Dec. 31, 2014
Valuation Allowance [Line Items]
Deferred tax assets, gross, current			$ 13,400,000
Deferred Tax Assets, Valuation Allowance, Current			11,200,000
Deferred tax asset valuation allowance	$ 45,777,000	$ 45,777,000	114,190,000
Deferred tax assets, net, current			2,200,000
Decrease in current state income tax expense		500,000
Federal net operating losses to be utilized	282,000,000	282,000,000
Estimated net operating losses to be utilized in preparing the 2012 Federal income tax return	38,100,000	38,100,000
Limited net operating losses under Section 382	6,100,000	6,100,000
Net operating loss carry-forward under Section 382	243,900,000	243,900,000
Increase (decrease) in valuation allowance	68,400,000
Uncertain income tax positions	0	0	0
Unrecognized tax benefits	0	0	$ 0
Foreign operations
Valuation Allowance [Line Items]
Foreign NOLs available for future years	1,700,000	1,700,000
Foreign tax credits	$ 400,000	$ 400,000
Minimum | State and Local Jurisdiction
Valuation Allowance [Line Items]
Applicable statute of limitations		3 years
Maximum | State and Local Jurisdiction
Valuation Allowance [Line Items]
Applicable statute of limitations		4 years