RETIREMENT BENEFITS - Changes in Benefit Obligations and Plan Assets as Well as Funded Status of Retirement Plans (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Change in plan assets
Fair value of plan assets at beginning of year	$ 956,345
Fair value of plan assets at end of year	1,024,454	$ 956,345
Pension Benefits
Change in benefit obligation
Obligation at beginning of year	971,415	855,509
Service cost	14,265	13,638	$ 12,505
Interest cost	17,697	23,074	28,316
Actuarial (gains) losses	(23,537)	100,839
Acquisition	0	8,930
Benefits paid	(43,512)	(41,332)
Participants’ contributions	0	0
Foreign currency exchange rate changes	(11,199)	10,757
Obligation at end of year	925,129	971,415	855,509
Change in plan assets
Fair value of plan assets at beginning of year	956,345	869,070
Actual return on plan assets	109,120	126,249
Employer contributions	2,501	2,358
Participants’ contributions	0	0
Benefits paid	(43,512)	(41,332)
Fair value of plan assets at end of year	1,024,454	956,345	869,070
Funded status	99,325	(15,070)
Amounts recognized in the consolidated balance sheets
Non-current assets	226,882	125,740
Current liabilities	(2,602)	(2,674)
Non-current liabilities	(124,955)	(138,136)
Net amount recognized	99,325	(15,070)
Amounts recognized in accumulated other comprehensive loss
Net actuarial loss (gain)	161,837	230,058
Prior service cost (credit)	731	974
Net amount recognized	162,568	231,032
Other Postretirement Benefits
Change in benefit obligation
Obligation at beginning of year	22,152	21,718
Service cost	107	88	80
Interest cost	363	566	759
Actuarial (gains) losses	(1,631)	1,440
Acquisition	0	0
Benefits paid	(1,573)	(1,765)
Participants’ contributions	107	105
Foreign currency exchange rate changes	0	0
Obligation at end of year	19,525	22,152	21,718
Change in plan assets
Fair value of plan assets at beginning of year	0	0
Actual return on plan assets	0	0
Employer contributions	1,466	1,660
Participants’ contributions	107	105
Benefits paid	(1,573)	(1,765)
Fair value of plan assets at end of year	0	0	$ 0
Funded status	(19,525)	(22,152)
Amounts recognized in the consolidated balance sheets
Non-current assets	0	0
Current liabilities	(1,460)	(1,665)
Non-current liabilities	(18,065)	(20,487)
Net amount recognized	(19,525)	(22,152)
Amounts recognized in accumulated other comprehensive loss
Net actuarial loss (gain)	(2,690)	(1,344)
Prior service cost (credit)	(2,637)	(4,467)
Net amount recognized	$ (5,327)	$ (5,811)