Employee Share Plans (Tables)

12 Months Ended

Dec. 31, 2012

Employee Share Plans [Abstract]

Schedule of fair value option award weighted average assumptions used

CBIZ utilized the Black-Scholes-Merton option-pricing model to determine the fair value of stock options on the date of grant. The fair value of stock options granted during the years ended December 31, 2012, 2011 and 2010 were determined using the following weighted average assumptions:

	2012			2011			2010
Expected volatility(1)		32.86	%		32.24	%		32.70	%
Expected option life (years)(2)		4.85			4.85			4.61
Risk-free interest rate(3)		0.78	%		2.20	%		2.05	%
Expected dividend yield(4)		0.00	%		0.00	%		0.00	%

(1) The expected volatility assumption was determined based upon the historical volatility of CBIZ’s stock price, using daily price intervals.

(2) The expected option life was determined based upon CBIZ’s historical data using a midpoint scenario, which assumes all options are exercised halfway between the expiration date and the weighted average time it takes the option to vest.

(3) The risk-free interest rate assumption was based upon zero-coupon U.S. Treasury bonds with a term approximating the expected life of the respective options.

(4) The expected dividend yield assumption was determined in view of CBIZ’s historical and estimated dividend payouts. CBIZ does not expect to change its dividend payout policy in the foreseeable future.

Schedule of share-based compensation awards

During the years ended December 31, 2012, 2011 and 2010, CBIZ recognized compensation expense for these awards as follows (in thousands):

	2012		2011		2010
Stock options	$	2,981	$	3,137	$	2,936
Restricted stock awards		2,907		2,817		2,370
Total stock-based compensation expense before income tax benefit	$	5,888	$	5,954	$	5,306

Stock award activity

Stock option activity during the year ended December 31, 2012 was as follows:

	Number of Options (in thousands)			Weighted Average Exercise Price Per Share		Weighted Average Remaining Contractual Term		Aggregate Intrinsic Value (in millions)
Outstanding at December 31, 2011		6,825		$	7.54
Granted		1,465		$	5.87
Exercised		—			—
Expired or canceled		(749	)	$	7.87
Outstanding at December 31, 2012		7,541		$	7.18		3.12 years	$	—
Vested and exercisable at December 31, 2012		3,965		$	7.64		1.99 years	$	—

Roll forward of RSU activity

Restricted stock award activity during the year ended December 31, 2012 was as follows:

	Number of Shares (in thousands)			Weighted Average Grant-Date Fair Value(1)
Non-vested at December 31, 2011		983		$	7.30
Granted		498		$	5.99
Vested		(394	)	$	7.39
Forfeited		(9	)	$	7.18
Non-vested at December 31, 2012		1,078		$	6.66

(1) Represents weighted average market value of the shares as the awards are granted at no cost to the recipients.