LEASES (Details) (USD $)	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
LEASES
Rent expense	$ 48,800,000	$ 43,000,000	$ 41,400,000
Sublease rental income netted against rent expense	1,500,000	1,300,000	600,000
Sublease rent income expected to be received over the next four years	1,200,000
Future minimum rental payments, by year and in the aggregate, under operating leases
2014	47,100,000
2015	35,637,000
2016	28,031,000
2017	21,522,000
2018	14,350,000
Thereafter	27,418,000
Total	$ 174,058,000