DEFERRED REVENUE (Tables)

9 Months Ended

Sep. 30, 2015

DEFERRED REVENUE [Abstract]

Summary Of Recognized Deferred Revenue

	Three Months Ended		Nine Months Ended
	September 30			September 30
in thousands	2015	2014		2015	2014
Deferred Revenue
Balance at beginning of period	$     217,429	$     222,589		$     219,968	$     224,743
Cash received and revenue deferred	0	0		0	187
Amortization of deferred revenue	(1,778)	(1,384)		(4,317)	(3,725)
Balance at end of period	$     215,651	$     221,205		$     215,651	$     221,205