STOCK BASED COMPENSATION: (Tables)

12 Months Ended

Dec. 31, 2014

Disclosure of Compensation Related Costs, Share-based Payments [Abstract]

Schedule of Share-based Compensation Arrangement by Share-based Payment Award, Restricted Stock Units, Vested and Expected to Vest

			2014			2013
	Number		Weighted Average Grant Date	Number		Weighted Average Grant Date
(shares in thousands)	Outstanding		Fair Value	Outstanding		Fair Value
Nonvested balance at January 1,	30,496		33.49	26,431		36.88
Granted during the year	22,019		32.17	30,219		30.55
Vested during the year	(30,431	)	33.52	(21,439	)	34.21
Forfeited during the year	—		—	(4,715	)	36.88
Nonvested balance at December 31,	22,084		31.63	30,496		33.49