Consolidated Statements of Cash Flows (Unaudited) (USD $) In Thousands, unless otherwise specified	6 Months Ended
	Jun. 30, 2013	Jun. 30, 2012
Cash flows from operating activities:
Net income (loss)	$ 4,116	$ (1,329)
Adjustments to reconcile net income (loss) to net cash provided by (used in) operating activities:
Depreciation and amortization	7,775	8,423
Deferred income taxes	3,294	2,405
Amortization of debt issue costs	1,030	1,137
Amortization of syndication contracts	302	381
Payments on syndication contracts	(651)	(934)
Non-cash stock-based compensation	2,241	998
(Gain) loss on debt extinguishment	130	1,230
Changes in assets and liabilities, net of effect of acquisitions and dispositions:
(Increase) decrease in accounts receivable	(4,327)	(3,771)
(Increase) decrease in prepaid expenses and other assets	(454)	(177)
Increase (decrease) in accounts payable, accrued expenses and other liabilities	(637)	(1,998)
Net cash provided by (used in) operating activities	12,819	6,365
Cash flows from investing activities:
Purchases of property and equipment and intangibles	(4,605)	(3,647)
Net cash provided by (used in) investing activities	(4,605)	(3,647)
Cash flows from financing activities:
Proceeds from issuance of common stock	2,392
Payments on long-term debt	(50)	(20,600)
Payments of capitalized debt offering and issuance costs	(5,620)	(80)
Net cash provided by (used in) financing activities	(3,278)	(20,680)
Net increase (decrease) in cash and cash equivalents	4,936	(17,962)
Cash and cash equivalents:
Beginning	36,130	58,719
Ending	41,066	40,757
Cash payments for:
Interest	14,612	17,651
Income taxes	$ 520	$ 661