DEBT - Schedule of Long-Term Debt (Detail) - USD ($) $ in Thousands	Mar. 31, 2017	Dec. 31, 2016
Debt Instrument [Line Items]
Total debt	$ 2,871,875	$ 2,959,316
Less: current portion of total debt	96,301	72,822
Less: unamortized debt issuance costs	8,539	9,179
Long-term portion of total debt	2,767,035	2,877,315
Obligations under capital leases
Debt Instrument [Line Items]
Total debt	10,820	11,121
$1.2 billion senior credit facility weighted average rate 2.23%, due in 2019
Debt Instrument [Line Items]
Total debt	346,506	407,119
$1.0 billion term loan weighted average rate 2.33%, due in 2020
Debt Instrument [Line Items]
Total debt	970,000	1,000,000
$175 million private placement notes 3.89%, due in 2017
Debt Instrument [Line Items]
Total debt	175,000	175,000
$125 million private placement notes 2.68%, due in 2019
Debt Instrument [Line Items]
Total debt	125,000	125,000
$225 million private placement notes 4.47%, due in 2020
Debt Instrument [Line Items]
Total debt	225,000	225,000
$150 million private placement notes 2.89%, due in 2021
Debt Instrument [Line Items]
Total debt	150,000	150,000
$125 million private placement notes 3.26%, due in 2022
Debt Instrument [Line Items]
Total debt	125,000	125,000
$200 million private placement notes 2.72%, due in 2022
Debt Instrument [Line Items]
Total debt	200,000	200,000
$100 million private placement notes 2.79%, due in 2023
Debt Instrument [Line Items]
Total debt	100,000	100,000
$150 million private placement notes 3.18%, due in 2023
Debt Instrument [Line Items]
Total debt	150,000	150,000
Promissory notes and deferred consideration weighted average rate of 2.39% and weighted average maturity of 3.3 years
Debt Instrument [Line Items]
Total debt	193,208	191,648
Foreign bank debt weighted average rate 6.25% and weighted average maturity of 1.9 years
Debt Instrument [Line Items]
Total debt	$ 101,341	$ 99,428