CONSOLIDATED SUPPLEMENTARY FINANCIAL DATA Narrative (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended					12 Months Ended
	Dec. 31, 2013	Sep. 30, 2013	Mar. 31, 2013	Dec. 31, 2012	Sep. 30, 2012	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Quarterly Financial Data [Abstract]
Impairment of goodwill and long-lived assets	$ 9,700	$ 8,100			$ 35,500	$ 17,751	$ 35,471	$ 0
Restructuring charges	$ 2,200	$ 1,100	$ 2,200	$ 700	$ 6,600	$ 5,546	$ 7,301	$ 0