CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (USD $) In Thousands, unless otherwise specified	6 Months Ended
	Jun. 30, 2014	Jun. 30, 2013
Cash flows from operating activities:
Net income	$ 10,963	$ 21,535
Adjustments to reconcile net income to cash provided by operating activities:
Depreciation and amortization	18,068	16,726
Amortization of discount and deferred debt issuance costs	1,182	1,742
Share-based compensation	983	1,552
Deferred income taxes, net	(3,904)	2,347
Provision for losses on accounts receivable	5,141	3,343
Loss on extinguishment of debt	659
Loss on sale of assets	96	100
Changes in operating assets and liabilities	11,552	(13,279)
Cash provided by operating activities	44,740	34,066
Cash flows from investing activities:
Purchases of property and equipment	(9,976)	(8,212)
Acquisitions of businesses, net of cash acquired	(949)	(2,234)
Proceeds from sale of assets	203	184
Cash used in investing activities	(10,722)	(10,262)
Cash flows from financing activities:
Long-term debt repayments	(172,600)	(9,280)
Long-term debt borrowings	275,000
Payments on obligations under capital leases	(3,692)	(3,499)
Dividend paid	(122,448)
Debt issuance costs	(3,618)	(2)
Cash used in financing activities	(27,358)	(12,781)
Effect of exchange rate changes on cash and cash equivalents	211	(81)
Increase in cash and cash equivalents	6,871	10,942
Cash and cash equivalents at beginning of period	29,997	50,134
Cash and cash equivalents at end of period	36,868	61,076
Supplemental schedule of non-cash investing and financing activities:
Notes issued in connection with acquisitions	4,452	6,513
Capital lease obligations	98	336
Settlement of Seller obligations in connection with acquisitions		1,240
Purchases of property and equipment in accounts payable	$ 197