Organization of the Company and Basis of Presentation - Additional Information (Detail)	12 Months Ended
	Dec. 31, 2014	Dec. 30, 2014	Dec. 31, 2013	Dec. 30, 2013
Consolidation, Less than Wholly Owned Subsidiary, Parent Ownership Interest, Effects of Changes, Net [Line Items]
Preferred Stock, Shares Issued	0		0
Cumulative Series E Eighteen Point Seventy Five Percent Non-Voting Preferred Stock [Member]
Consolidation, Less than Wholly Owned Subsidiary, Parent Ownership Interest, Effects of Changes, Net [Line Items]
Preferred Stock, Shares Issued	0	250	250	250
Preferred Stock, Dividend Rate, Percentage	18.75%
Cumulative Series D Six Percent Non-Qualified Preferred Stock [Member]
Consolidation, Less than Wholly Owned Subsidiary, Parent Ownership Interest, Effects of Changes, Net [Line Items]
Preferred Stock, Shares Issued	0	125	125	125
Preferred Stock, Dividend Rate, Percentage	6.00%