SHARE-BASED COMPENSATION PLANS (Details) - USD ($)	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of shares authorized (in shares)	15,300,000
Number of shares available for future grant (in shares)	8,950,686
Compensation cost charged to expense under all share-based incentive awards [Abstract]
Total compensation cost	$ 34,600,000	$ 33,600,000	$ 34,500,000
Unrecognized compensation cost related to nonvested share-based compensation arrangements	$ 29,700,000
Compensation expense over a remaining weighted-average period	1 year 6 months
Compensation expense			1,700,000
Minimum [Member]
Compensation cost charged to expense under all share-based incentive awards [Abstract]
Requisite service period	6 months
Maximum [Member]
Compensation cost charged to expense under all share-based incentive awards [Abstract]
Requisite service period	36 months
Nonvested restricted shares and restricted share units [Member]
Compensation cost charged to expense under all share-based incentive awards [Abstract]
Total compensation cost	$ 21,800,000	22,500,000	23,600,000
Share appreciation rights [Member]
Compensation cost charged to expense under all share-based incentive awards [Abstract]
Total compensation cost	$ 200,000	$ 1,100,000	3,700,000
Award vesting percentage	33.33%
Awards vesting period	3 years
Expiration period	10 years
Total intrinsic value of options exercised			$ 900,000
Number of shares under SARs
Outstanding at beginning of period (in shares)	1,615,000
Forfeited or expired (in shares)	(71,000)
Outstanding at end of period (in shares)	1,544,000	1,615,000
Exercised (in shares)	0	0
Grants (in shares)	0	0	0
Weighted-average exercise price
Outstanding at beginning of period (in dollars per share)	$ 30.66
Forfeited or expired (in dollars per share)	30.53
Outstanding at end of period (in dollars per share)	30.67	$ 30.66
Exercisable at end of period (in dollars per share)	$ 30.67
Outstanding at end of period, Weighted-average remaining contractual term (in years)	3 years 1 month 6 days
Exercisable at end of period, Weighted-average remaining contractual term (in years)	3 years 1 month 6 days
Outstanding at end of period, Aggregate intrinsic value	$ 700,000
Number of shares under SARs exercisable	1,544,000
Exercisable at end of period, Aggregate intrinsic value	$ 700,000
Share options [Member]
Compensation cost charged to expense under all share-based incentive awards [Abstract]
Expiration period	10 years
Total intrinsic value of options exercised			$ 1,400,000
Number of shares under SARs
Outstanding at beginning of period (in shares)	125,000
Forfeited or expired (in shares)	(25,000)
Outstanding at end of period (in shares)	100,000	125,000
Exercised (in shares)	0	0
Weighted-average exercise price
Outstanding at beginning of period (in dollars per share)	$ 21.02
Forfeited or expired (in dollars per share)	43.85
Outstanding at end of period (in dollars per share)	15.31	$ 21.02
Exercisable at end of period (in dollars per share)	$ 15.31
Outstanding at end of period, Weighted-average remaining contractual term (in years)	1 year 10 months 24 days
Exercisable at end of period, Weighted-average remaining contractual term (in years)	1 year 10 months 24 days
Outstanding at end of period, Aggregate intrinsic value	$ 400,000
Exercisable at end of period, Aggregate intrinsic value	$ 400,000
Share options [Member] | Minimum [Member]
Compensation cost charged to expense under all share-based incentive awards [Abstract]
Award vesting percentage	25.00%
Requisite service period	3 years
Share options [Member] | Maximum [Member]
Compensation cost charged to expense under all share-based incentive awards [Abstract]
Award vesting percentage	33.33%
Requisite service period	4 years
Performance-based awards [Member]
Compensation cost charged to expense under all share-based incentive awards [Abstract]
Total compensation cost	$ 12,600,000	$ 10,000,000	7,200,000
Awards vesting period	3 years
Fair value of shares vested			$ 0
Vested / Settled (in shares)			0
Performance-based awards, target value, per share amount	$ 100	$ 100	$ 100
Vesting percentage of performance units (in hundredths)	25.00%
Number of Shares
Vested / Settled (in shares)			0
Performance-based awards [Member] | Minimum [Member]
Compensation cost charged to expense under all share-based incentive awards [Abstract]
Expected to vest, weighted average exercise price (in dollars per share)	$ 0
Performance-based awards [Member] | Maximum [Member]
Compensation cost charged to expense under all share-based incentive awards [Abstract]
Expected to vest, weighted average exercise price (in dollars per share)	$ 200
Restricted shares [Member]
Compensation cost charged to expense under all share-based incentive awards [Abstract]
Award vesting percentage	33.33%
Awards vesting period	3 years
Fair value of shares vested	$ 37,000	$ 4,100,000	$ 10,900,000
Vested / Settled (in shares)	(3,000)
Granted (in dollars per share)	$ 18.60
Number of Shares
Nonvested at beginning of period (in shares)	3,000
Granted (in shares)	54,000	0	0
Vested / Settled (in shares)	(3,000)
Forfeited (in shares)	0
Nonvested at end of period (in shares)	54,000	3,000
Weighted-average grant-date fair value per share
Nonvested at beginning of period (in dollars per share)	$ 33.88
Granted (in dollars per share)	18.60
Vested / Settled (in dollars per share)	33.88
Forfeited (in dollars per share)	0.00
Nonvested at end of period (in dollars per share)	$ 18.60	$ 33.88
Restricted share units (RSUs) [Member]
Compensation cost charged to expense under all share-based incentive awards [Abstract]
Award vesting percentage	33.33%
Fair value of shares vested	$ 14,600,000	$ 8,900,000	$ 8,500,000
Requisite service period	3 years
Vested / Settled (in shares)	(919,000)
Granted (in dollars per share)	$ 11.62	$ 21.11	$ 32.45
Number of Shares
Nonvested at beginning of period (in shares)	1,744,000
Granted (in shares)	1,722,000
Vested / Settled (in shares)	(919,000)
Forfeited (in shares)	(304,000)
Nonvested at end of period (in shares)	2,243,000	1,744,000
Weighted-average grant-date fair value per share
Nonvested at beginning of period (in dollars per share)	$ 25.42
Granted (in dollars per share)	11.62	$ 21.11	$ 32.45
Vested / Settled (in dollars per share)	26.50
Forfeited (in dollars per share)	16.47
Nonvested at end of period (in dollars per share)	$ 15.59	$ 25.42
Non Employee Director Restricted Share Units [Member]
Compensation cost charged to expense under all share-based incentive awards [Abstract]
Vested / Settled (in shares)	(54,000)	(44,000)	(37,000)
Fair value of shares of common stock issued in connection with settlement of vested RSUs	$ 1,000,000	$ 900,000	$ 1,200,000
Fair value of long-term liabilities	$ 5,200,000	$ 4,700,000
Granted (in dollars per share)	$ 17.43	$ 20.96	$ 31.10
Number of Shares
Outstanding, beginning of period (in shares)	300,000
Granted (in shares)	41,000
Vested / Settled (in shares)	(54,000)	(44,000)	(37,000)
Outstanding, end of period (in shares)	287,000	300,000
Vested at end of period (in shares)	246,000
Weighted-average grant-date fair value per share
Outstanding, beginning of period (in dollars per share)	$ 29.51
Granted (in dollars per share)	17.43	$ 20.96	$ 31.10
Vested / Settled (in dollars per share)	30.64
Outstanding, end of period (in dollars per share)	27.78	$ 29.51
Vested at end of period (in dollars per share)	$ 29.51
Performance units [Member]
Compensation cost charged to expense under all share-based incentive awards [Abstract]
Compensation expense over a remaining weighted-average period	3 years
Aggregate grant date fair value, net of estimated forfeitures	$ 8,600,000	$ 9,000,000
Cash paid for units vested	7,900,000	2,700,000
Accrued Liabilities [Member] | Performance units [Member]
Compensation cost charged to expense under all share-based incentive awards [Abstract]
Fair value of short-term liabilities	10,900,000	7,600,000
Other Liabilities [Member] | Performance units [Member]
Compensation cost charged to expense under all share-based incentive awards [Abstract]
Fair value of long-term liabilities	$ 12,800,000	$ 11,400,000
Director [Member] | Restricted shares [Member]
Number of Shares
Granted (in shares)	54,000