Other Assets (Details) (USD $) In Thousands, unless otherwise specified	Sep. 30, 2014		Dec. 31, 2013
Deferred Costs, Capitalized, Prepaid, and Other Assets Disclosure [Abstract]
Marketable securities held in Rabbi Trust	$ 44,446	[1]	$ 42,184	[1]
Deferred tax asset	6,960		7,391
Deposits	2,837		3,132
Other	7,034		11,279
Total other assets	$ 61,277		$ 63,986

[1] See Note 10 – Fair Value Measurements