Condensed Consolidated Statements Of Cash Flows (USD $) In Thousands	9 Months Ended
	Sep. 30, 2011	Sep. 30, 2010
Cash flows from operating activities:
Net income	$ 20,071	$ 14,296
Adjustments to reconcile net income to cash provided by (used in) operating activities:
Deferred income tax provision, net	478	1,777
Depreciation and amortization	9,619	9,349
Stock-based compensation	8,746	4,537
Recovery of bad debts on accounts receivable and other accounts receivable reserves	(936)	(1,232)
Pension and postretirement benefit plans expense	3,280	3,021
Alternative long-term incentive award	12	841
Deferred compensation liability (decrease) increase, net	(1,873)	1,038
Tax benefit attributable to stock-based compensation	1,227	1,538
Excess tax benefit attributable to stock-based compensation	(862)	(1,051)
Loss (gain) on cash surrender value of corporate-owned life insurance	2,560	(166)
Other	295	361
(Increase) decrease in operating assets:
Trade receivables, net	(37,399)	(29,784)
Income tax refund receivable	5,631	(2,283)
Prepaid expenses and other current assets	(1,862)	(1,124)
Other assets, net	73	(300)
Increase (decrease) in operating liabilities:
Accounts payable and other accrued liabilities	3,482	2,852
Accrued payroll costs	4,820	10,060
Income taxes payable	645	(6)
Other long-term liabilities	(4,087)	(863)
Cash provided by operating activities	13,920	12,861
Cash flows from investing activities:
Capital expenditures	(4,336)	(34,639)
Premiums paid for corporate-owned life insurance policies	(2,450)	(2,686)
Proceeds from borrowings against cash surrender value of corporate-owned life insurance policies		4,959
Other	40	273
Cash used in investing activities	(6,746)	(32,093)
Cash flows from financing activities:
Proceeds from bank line of credit	385,260	344,930
Payments on bank line of credit	(336,701)	(327,930)
Payments of capital expenditure financing	(1,184)	(1,421)
Payments of deferred loan financing costs	(447)
Short-term vendor financing	303	(278)
Excess tax benefit attributable to stock-based compensation	862	1,051
Open market repurchases of common stock	(53,905)
Proceeds from exercise of stock options, net of shares tendered in payment of the exercise price of stock options	193	1,816
Shares repurchased for minimum tax withholding on restricted stock awards, stock option exercises and SARs	(1,585)	(1,294)
Cash (used in) provided by financing activities	(7,204)	16,874
Decrease in cash and cash equivalents	(30)	(2,358)
Cash and cash equivalents at beginning of period	1,055	2,812
Cash and cash equivalents at end of period	1,025	454
Supplemental Cash Flow Information:
Income taxes, net	3,856	7,949
Interest, net	600	576
Non-Cash Transaction Information:
Employee stock purchase plan	500
Shares tendered in payment of the exercise price of stock options and SARs	2,401	1,316
Equipment acquired under capital lease	881	1,905
Unsettled open market repurchases of common stock	$ 2,459