Stockholders' Equity (Tables)

12 Months Ended

Dec. 31, 2013

Equity [Abstract]

Summary of Purchase and Sale of Common Stock

The following table summarizes the shares of the Company’s common stock that were purchased and sold by the Company’s Rabbi Trust, which holds the investments for the Capital Accumulation Plan:

	Years ended December 31,
	2013		2012		2011
Shares of common stock purchased		5,900		13,650		17,685
Aggregate purchase price of shares purchased	$	158,060	$	158,883	$	147,079
Shares of common stock sold		11,719		14,882		62,715
Aggregate sale price of shares sold	$	158,060	$	206,794	$	670,831