CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (USD $) In Thousands, unless otherwise specified	6 Months Ended
	Jun. 30, 2013	Jun. 30, 2012
Cash flows from operating activities:
Net income (loss)	$ 78	$ (1,531)
Adjustments to reconcile net income (loss) to net cash provided by operating activities:
Depreciation and amortization	22,820	22,407
Dispositions of property and equipment	39	3
Deferred income tax benefit	(5,618)	(1,562)
Deferred financing and original issue discount amortization	1,223	1,042
Stock-based compensation expense	4,841
Other non-cash interest and change in value of interest rate swap	(418)	(372)
Changes in operating items:
Accounts receivable	(24,698)	(14,038)
Inventories	(2,907)	(12,547)
Other assets	2,037	(873)
Accounts payable	4,805	9,444
Interest payable on junior subordinated debentures	1,019	1,019
Other accrued liabilities	(1,253)	2,023
Other items, net	(940)	(1,480)
Net cash provided by operating activities	1,028	3,535
Cash flows from investing activities:
Paulin acquisition	(103,416)
Proceeds from sale of property and equipment		3
Capital expenditures	(14,604)	(10,496)
Net cash used for investing activities	(118,020)	(10,493)
Cash flows from financing activities:
Borrowings of senior term loans	76,800
Repayments of senior term loans	(1,792)	(1,600)
Discount on senior term loans	(2,152)
Borrowings of revolving credit loans		19,000
Payment of additional acquisition consideration		(12,387)
Principal payments under capitalized lease obligations	(41)	(17)
Repayments of other credit obligations	(456)
Net cash provided by financing activities	72,359	4,996
Net decrease in cash and cash equivalents	(44,633)	(1,962)
Cash and cash equivalents at beginning of period	65,548	12,027
Cash and cash equivalents at end of period	20,915	10,065
Supplemental schedule of noncash activities:
Fixed assets acquired under capital lease	$ 202	$ 33