Commitments and Contingencies (Narrative) (Detail) (USD $)	3 Months Ended	9 Months Ended
	Jun. 30, 2014	Sep. 30, 2014	Dec. 31, 2013
Commitments And Contingencies [Abstract]
Litigation Settlement, Expense	$ 4,600,000
Self insurance deductible for workers compensation		5,000,000
Self insurance deductible for general liability claims		1,000,000
Self insurance deductible for medical and dental coverage		400,000
Self insured risk accruals		33,500,000	26,100,000
Receivable for Medical and Dental Coverage		$ 14,000	$ 230,000