Income Taxes - Additional Information (Detail) (USD $) In Millions, unless otherwise specified	6 Months Ended
	Jun. 30, 2014	Jan. 02, 2014	Dec. 31, 2013
Income Tax Disclosure [Abstract]
Deferred tax assets, gross	$ 143.2		$ 148.2
Valuation allowance	119.3		119.3
Estimated recoverable deferred income tax assets	23.9		28.9
Percentage of probability of deferred income tax realized in future	50.00%
Valuation allowance, methodologies and assumptions	"more likely than not" (greater than a 50% probability)
Federal income tax at statutory rate	35.00%
Approximate Federal net operating losses ("NOLs") available to offset future taxable income		343.8
Limited net operating losses rate under "IRC Section 382"		50.4
Allowable net operating losses utilize per year under "IRC Section 382"		6.1
Estimated net operating losses to be utilized in preparing the 2012 Federal income tax return		$ 44.7