Planned Spin Off (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended	9 Months Ended
	Sep. 30, 2013	Sep. 30, 2013
Planned spin off costs incurred to date	$ 10,637	$ 13,959
Minimum [Member]
Expected future spin off costs	60,000	60,000
Maximum [Member]
Expected future spin off costs	$ 70,000	$ 70,000