INCOME TAXES - Additional Information (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Tax Cuts and Jobs Act of 2017, Provisional income tax benefit	$ 12,100
Tax Cuts and Jobs Act, deferred tax assets and liabilities, income tax benefit	22,900
Tax Cuts and Jobs Act, other impact, provisional income tax expense	6,800
Tax Cuts and Jobs Act, transition tax, income tax expense	4,000
Tax benefit for qualified production activity	19,700
Provision for income taxes	223,570	$ 298,566	$ 313,082
Tax benefit related to earnings from foreign subsidiaries	3,700
Increase in income tax payable due to repatriation of foreign earnings	12,100
Unrecognized tax benefits and related interest and penalties, all of which would affect our effective tax rate if recognized	38,600
Interest and penalties recognized	700	900	$ 1,200
Interest and penalties accrued	6,800	6,600
Tax Cuts and Jobs Act, Change in Tax Rate, deferred tax asset, decrease in provision	(34,400)
Tax Cuts and Jobs Act, Change in Tax Rate, deferred tax liability, income tax benefit	57,300
Foreign net operating loss carryforwards tax effect	10,900	$ 9,000
Accounting Standards Update 2016-09
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Provision for income taxes	$ 13,700