LEASES - Deferred payment (Details) $ in Millions	6 Months Ended
LEASES - Deferred payment (Details) $ in Millions	Jun. 30, 2023 USD ($)
Fixed operating lease deferred amounts included in:
Fixed operating lease deferred amounts, Beginning	$ 150.3
Fixed operating lease deferred amounts, Activity	(58.6)
Fixed operating lease deferred amounts, Ending	91.7
Finance lease deferred amounts included in:
Finance lease deferred amounts, Beginning	0.9
Finance lease deferred amounts, Activity	(0.4)
Finance lease deferred amounts, Ending	0.5
Variable lease deferred amounts included in:
Variable lease deferred amounts, Beginning	6.0
Variable lease deferred amounts, Activity	(1.7)
Variable lease deferred amounts, Ending	4.3
Total deferred lease amounts, Beginning	157.2
Total deferred lease amounts, Activity	(60.7)
Total deferred lease amounts, Ending	96.5
Fixed operating lease deferred amounts	8.6
Operating lease deferred fixed rent payments included in deferred and other non cash rent	$ 50.0