DEBT - Schedule of Long-Term Debt (Detail) (USD $)	Dec. 31, 2013	Dec. 31, 2012
Debt Instrument [Line Items]
Total debt	$ 1,431,043,000	$ 1,356,084,000
Less: current portion of total debt	150,380,000	87,781,000
Long-term portion of total debt	1,280,663,000	1,268,303,000
Obligations under capital leases [Member]
Debt Instrument [Line Items]
Total debt	7,343,000	5,234,000
$1 billion senior credit facility weighted average rate1.60%, due in 2016 [Member]
Debt Instrument [Line Items]
Total debt	272,358,000	225,931,000
$100 million private placement notes 5.64%, due in 2015 [Member]
Debt Instrument [Line Items]
Total debt	100,000,000	100,000,000
$175 million private placement notes 3.89%, due in 2017 [Member]
Debt Instrument [Line Items]
Total debt	175,000,000	175,000,000
$125 million private placement notes 2.68%, due in 2019 [Member]
Debt Instrument [Line Items]
Total debt	125,000,000	125,000,000
$225 million private placement notes 4.47%, due in 2020 [Member]
Debt Instrument [Line Items]
Total debt	225,000,000	225,000,000
$125 million private placement notes 3.26%, due in 2022 [Member]
Debt Instrument [Line Items]
Total debt	125,000,000	125,000,000
Acquisition notes weighted average rate of 2.26% and weighted average maturity of 3.6 years [Member]
Debt Instrument [Line Items]
Total debt	252,195,000	235,856,000
Foreign bank debt weighted average rate 8.37% and weighted average maturity of 1.6 years [Member]
Debt Instrument [Line Items]
Total debt	$ 149,147,000	$ 139,063,000