LEASES (Narrative) (Detail) (USD $) In Millions, unless otherwise specified	12 Months Ended					12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2013 PENNSYLVANIA	Jun. 03, 2013 PENNSYLVANIA sqft building acre	Dec. 31, 2013 IDAHO	Jun. 05, 2013 IDAHO sqft acre building
Operating Leased Assets [Line Items]
Area of Land					12.5		8.6
Number of Real Estate Properties					2		2
Area of Real Estate Property					178,975		112,000
Operating Leases Future Minimum Payments Due Annually Years One To Eight				$ 1.9		$ 1.1
Lessee Leasing Arrangements, Operating Leases, Annual Rent Escalation				2.50%		2.50%
Lessee Leasing Arrangements, Operating Leases, Term of Contract				15 years		15 years
OperatingLeasesRentExpenseNet	$ 41.7	$ 35.6	$ 33.6