COMMON STOCK (Details) - USD ($) $ in Thousands	3 Months Ended						9 Months Ended	40 Months Ended
	Sep. 30, 2021	Jun. 30, 2021	Mar. 31, 2021	Sep. 30, 2020	Jun. 30, 2020	Mar. 31, 2020	Sep. 30, 2021	Sep. 30, 2021	Nov. 19, 2020	Jul. 31, 2019	Jun. 08, 2018
Common Stock Outstanding Roll Forward [Roll Forward]
Repurchase and retirement of Class A common shares in connection with the Company's share repurchase plan (discussed above)							(23,593,728)	(285,507,773)
Ending balance common stock, shares outstanding (in shares)	454,653,279						454,653,279	454,653,279
Value of shares repurchased	$ 79,410	$ 202,845	$ 522,673	$ 448,853	$ 631,237	$ 749,998	$ 804,928	$ 7,808,698
Availability remaining under its stock repurchase program	$ 1,191,302						$ 1,191,302	$ 1,191,302
Common stock, shares outstanding (in shares)	454,653,279						454,653,279	454,653,279
Share repurchase authorized									$ 2,000,000		$ 2,000,000
Neptune Holdings US Limited Partnership
Common Stock Outstanding Roll Forward [Roll Forward]
Repurchase and retirement of Class A common shares in connection with the Company's share repurchase plan (discussed above)							(5,930,783)
Total shares authorized for repurchase
Common Stock Outstanding Roll Forward [Roll Forward]
Share repurchase authorized	$ 9,000,000						$ 9,000,000	$ 9,000,000
2019 Share Repurchase Authorization [Member]
Common Stock Outstanding Roll Forward [Roll Forward]
Share repurchase authorized										$ 5,000,000
Common Class A
Common Stock Outstanding Roll Forward [Roll Forward]
Common Stock, Shares, Outstanding, Beginning Balance			290,573,672				290,573,672
Conversion of Class B common stock to Class A common stock							107,671
Option exercises							1,080,548
Repurchase and retirement of Class A common shares in connection with the Company's share repurchase plan (discussed above)							(23,593,728)
Treasury shares reissued							696,884
Ending balance common stock, shares outstanding (in shares)	268,865,047						268,865,047	268,865,047
Common stock, shares outstanding (in shares)	268,865,047						268,865,047	268,865,047
Number of shares of common stock converted (in shares)							107,671
Common Class B
Common Stock Outstanding Roll Forward [Roll Forward]
Common Stock, Shares, Outstanding, Beginning Balance			185,895,903				185,895,903
Conversion of Class B common stock to Class A common stock							(107,671)
Option exercises							0
Repurchase and retirement of Class A common shares in connection with the Company's share repurchase plan (discussed above)							0
Ending balance common stock, shares outstanding (in shares)	185,788,232						185,788,232	185,788,232
Common stock, shares outstanding (in shares)	185,788,232						185,788,232	185,788,232
Number of shares of common stock converted (in shares)							(107,671)