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DEBT - Paragraph (Details) $ in Thousands						1 Months Ended	12 Months Ended
DEBT - Paragraph (Details) $ in Thousands	Jun. 29, 2021	Jun. 26, 2020	Nov. 01, 2019 USD ($)	Aug. 06, 2019 USD ($)	Apr. 18, 2017 USD ($)	Mar. 31, 2020 USD ($)	Dec. 31, 2021 USD ($)	Dec. 31, 2020 USD ($)	Dec. 31, 2019 USD ($)
DEBT
Loan amount							$ 744,000
Notional amount						$ 500,000
Interest rate swap agreement
DEBT
Notional amount						$ 440,000
Percentage of outstanding debt						59.00%
Net loss related to terminated swap						$ 1,800
Fair value of the interest rate swap							5,000
Gain (loss) on settlements of the interest rate swaps							(3,700)	$ (3,300)	$ 170
Sweep Arrangements
DEBT
Advances outstanding							$ 0
Credit agreement
DEBT
Maximum borrowing capacity					$ 500,000
Contractual term					5 years
Accordion feature			$ 250,000
Effective interest rate (as a percent)							4.00%
Loan amount							$ 303,000	347,000
Availability for borrowings under line of credit							$ 71,200
Voting equity interest in foreign subsidiaries pledged as security (as a percent)					100.00%
Non-voting equity interest in foreign subsidiaries pledged as security (as a percent)					65.00%
Equity interest in domestic subsidiaries pledged as security (as a percent)					100.00%
Percentage of EBITDA plus certain additional amounts used to determine additional borrowing capacity			100.00%
Total leverage ratio		4.00		4.00
Credit agreement \| Minimum
DEBT
Commitment fee (as a percent)							0.175%
Credit agreement \| Maximum
DEBT
Commitment fee (as a percent)							0.40%
Credit Agreement, Letter Of Credit
DEBT
Line of credit issued in the form of a standby letters of credit							$ 12,200
Credit Agreement, Swingline Loans
DEBT
Maximum borrowing capacity			$ 40,000
Credit Agreement, Swingline Loans \| Sweep Arrangements
DEBT
Maximum borrowing capacity							40,000
Term Loan
DEBT
Maximum borrowing capacity			$ 450,000
Contractual term			7 years
Loan amount				$ 400,000			$ 441,000	$ 445,500
Increase in capacity			$ 50,000
Required annual principal repayment (as a percent)			1.00%
Stated interest rate							2.86%
Term Loan \| Maximum
DEBT
Commitment fee (as a percent)	0.375%
Term Loan \| LIBOR
DEBT
Percentage points added to the reference rate	2.25%		2.25%
Term Loan \| Base rate
DEBT
Percentage points added to the reference rate	1.25%		1.25%