STOCK-BASED COMPENSATION (Summary Of Stock Option Activity) (Details) $ / shares in Units, shares in Thousands, $ in Thousands	12 Months Ended
	Dec. 31, 2015 USD ($) $ / shares shares
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding [Roll Forward]
Share, Outstanding at beginning of year | shares	1,238
Shares, Modification upon spin-off | shares	58
Shares, Granted | shares	98
Shares, Exercised | shares	(200)
Shares, Forfeited or Expired | shares	(1)
Shares, Outstanding at end of year | shares	1,193
Shares, Vested or expected to vest at end of year | shares	1,193
Shares, Exercisable at end of year | shares	1,037
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Exercise Price [Roll Forward]
Weighted Average Exercise Price, Outstanding at beginning of year | $ / shares	$ 39.89
Weighted Average Exercise Price, Modification Upon Spin-off | $ / shares	0.00
Weighted Average Exercise Price, Granted | $ / shares	62.37
Weighted Average Exercise Price, Exercised | $ / shares	35.57
Weighted Average Exercise Price, Forfeited or Expired | $ / shares	53.73
Weighted Average Exercise Price, Outstanding at end of year | $ / shares	37.09
Weighted Average Exercise Price, Exercisable at end of year | $ / shares	$ 35.02
Weighted Average Contractual Term in Years, Outstanding at end of year	3 years 3 months 4 days
Weighted Average Contractual Term in Years, Vested or expected to vest at end of year	3 years 3 months 4 days
Weighted Average Contractual Term in Years, Exercisable at end of year	2 years 8 months 9 days
Weighted Average Exercise Price, Vested or expected to vest at end of year | $ / shares	$ 37.09
Aggregate Intrinsic Value, Outstanding at end of year | $	$ 36,614
Aggregate Intrinsic Value, Vested or expected to vest at end of year | $	36,614
Aggregate Intrinsic Value, Exercisable at end of year | $	$ 33,980