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LONG-TERM DEBT - SCHEDULE OF LONG-TERM DEBT (Details) - USD ($) $ in Thousands	Dec. 31, 2017	May 31, 2017	Dec. 31, 2016	May 31, 2016	Jun. 30, 2015
Debt Instrument [Line Items]
Long-term debt, gross	$ 2,310,192		$ 1,880,036
Capital lease obligations and other	84,274		71,109
Less current maturities	(38,709)		(19,966)
Debt issuance costs and discounts	(23,447)		(19,124)
Long-term debt (less current maturities and debt issuance costs and discounts)	2,248,036		1,840,946
British pound term loan [Member]
Debt Instrument [Line Items]
Long-term debt, gross	194,574		187,506
Euro term loan [Member]
Debt Instrument [Line Items]
Long-term debt, gross	131,956		120,900
Canadian dollar revolving credit facility [Member]
Debt Instrument [Line Items]
Long-term debt, gross	99,388		100,521
Unsecured Senior Notes, 4.60% [Member] | Senior notes [Member]
Debt Instrument [Line Items]
Long-term debt, gross	$ 1,000,000		1,000,000
Stated interest rate	4.60%				4.60%
Unsecured Senior Notes, 3.75% [Member] | Senior notes [Member]
Debt Instrument [Line Items]
Long-term debt, gross	$ 400,000		400,000
Stated interest rate	3.75%			3.75%
Unsecured Senior Notes, 4.20% [Member] | Senior notes [Member]
Debt Instrument [Line Items]
Long-term debt, gross	$ 400,000		$ 0
Stated interest rate	4.20%	4.20%

X

- Definition

Amount, before unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but is not limited to, notes payable, bonds payable, commercial loans, mortgage loans, convertible debt, subordinated debt and other types of debt.

+ References

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02(22))
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Contractual interest rate for funds borrowed, under the debt agreement.

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Amount, after unamortized (discount) premium and debt issuance costs, of long-term debt, classified as current. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.

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