CAPITAL STOCK, Restricted Stock and Restricted Stock Units (Details) (USD $)	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Restricted Stock, Par or Stated Value Per Share	$ 0.01
Restricted Stock Units (RSUs) [Member]
Non-Vested Restricted Stock and Restricted Stock Units Activity [Roll Forward]
Non-vested at beginning of period (in shares)	322,733
Granted (in shares)	801,316
Vested (in shares)	(264,513)
Forfeited (in shares)	(47,656)
Non-vested at end of period (in shares)	811,880	322,733
Expected to vest (in shares)	741,436
Weighted-average grant date fair value, non-vested at beginning of period (in dollars per share)	$ 11.30
Weighted-average grant date fair value, granted (in dollars per share)	$ 10.19	$ 7.84	$ 10.95
Weighted-average grant date fair value, vested (in dollars per share)	$ 11.19
Weighted-average grant date fair value, forfeited (in dollars per share)	$ 15.25
Weighted-average grant date fair value, non-vested at end of period (in dollars per share)	$ 10.01
Weighted-average grant date fair value, expected to vest (in dollars per share)	$ 10.02
Non-vested restricted stock weighted-average remaining contractual term (in years)	321 days
Expected to vest restricted stock weighted-average remaining contractual term (in years)	307 days
Non-vested restricted stock aggregate intrinsic value	11,529,000
Expected to vest restricted stock aggregate intrinsic value	10,528,000
Fair value of restricted stock and stock units vested during the period	$ 2,500,000	$ 1,100,000	$ 2,300,000