Goodwill Goodwill Narrative (Details) (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended		9 Months Ended		12 Months Ended
	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013	Dec. 31, 2013	Oct. 01, 2014	Oct. 01, 2013
Goodwill [Line Items]
Goodwill impairment	$ 0	$ 0	$ 977	$ 0	$ 173,200
Share Price						$ 38.75	$ 43.04
Incremental Goodwill Impairment Expense Determined After Close of 2013 Accounting Records [Member]
Goodwill [Line Items]
Goodwill impairment			$ 977