Condensed Consolidated Statements of Stockholders' Equity (Parenthetical) (USD $)	3 Months Ended	12 Months Ended
	Mar. 31, 2014	Dec. 31, 2013
Deferred compensation plan held Rabbi Trust (in shares)	34,731	34,495
Shares issued under the performance incentive plan withheld for employee taxes (in shares)	8,458	10,411
Cash Dividends Declared Per Share of Common Stock (in usd per share)	$ 0.385	$ 1.52