COMPREHENSIVE EARNINGS (LOSS): (Tables)

12 Months Ended

Dec. 31, 2012

COMPREHENSIVE EARNINGS (LOSS):

Schedule of accumulated other comprehensive earnings (loss):

	Foreign			Unrealized Gain (Loss) on									Accumulated
	Currency Translation Adjustment			Investments			Derivatives			Postretirement and Pension Benefits			Other Comprehensive Earnings (Loss)
Balance at January 1, 2010	$	(13,227	)	$	(255	)	$	2,314		$	(1,228	)	$	(12,396	)
Unrealized gains (losses)	856			(1,179		)	7,313			(3,135		)	3,855
(Gains) losses reclassified to net earnings	—			—			(2,651		)	128			(2,523		)
Tax effect	135			435			(1,724		)	1,005			(149		)
Net of tax amount	991			(744		)	2,938			(2,002		)	1,183
Balance at December 31, 2010	(12,236		)	(999		)	5,252			(3,230		)	(11,213		)
Unrealized gains (losses)	(2,496		)	1,030			(397		)	(3,593		)	(5,456		)
(Gains) losses reclassified to net earnings	—			—			(7,531		)	501			(7,030		)
Tax effect	46			(382		)	2,933			1,149			3,746
Net of tax amount	(2,450		)	648			(4,995		)	(1,943		)	(8,740		)
Balance at December 31, 2011	(14,686		)	(351		)	257			(5,173		)	(19,953		)
Unrealized gains (losses)	1,303			1,980			(339		)	1,066			4,010
(Gains) losses reclassified to net earnings	—			—			(243		)	1,036			793
Tax effect	(23		)	(721		)	214			(767		)	(1,297		)
Net of tax amount	1,280			1,259			(368		)	1,335			3,506
Balance at December 31, 2012	$	(13,406	)	$	908		$	(111	)	$	(3,838	)	$	(16,447	)