Unaudited Condensed Consolidated Statements of Cash Flows - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2017	Mar. 31, 2016
Operating activities
Net (loss) income	$ (3,951)	$ 2,129
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation	4,306	5,521
Amortization	1,963	8,815
Provision for doubtful accounts	198	494
Stock-based compensation	1,466	612
Deferred income taxes	(2,795)	(3,954)
Amortization of deferred financing costs and debt discount	175	532
Equity in net loss of investees	2,060	2,717
Other non-cash charges (credits)	(61)	(43)
Changes in operating assets and liabilities, net of effects of acquisitions:
Accounts receivable	1,063	22,520
Prepaid expenses and other	(1,906)	(1,735)
Reinsurance liability reserve	(1,404)	(1,728)
Accounts payable and accrued expenses	12,339	4,071
Income taxes payable on sale of business		(28,337)
Accrued transportation costs	18,599	19,930
Deferred revenue	2,007	516
Other long-term liabilities	2,139	2,615
Net cash provided by operating activities	36,198	34,675
Investing activities
Purchase of property and equipment	(5,738)	(9,814)
Net increase in short-term investments	(3)	(5)
Equity investments		(3,229)
Loan to joint venture	(566)
Restricted cash for reinsured claims losses and other	595	2,514
Net cash used in investing activities	(5,712)	(10,534)
Financing activities
Preferred stock dividends	(1,090)	(1,099)
Repurchase of common stock, for treasury	(18,753)	(19,579)
Proceeds from common stock issued pursuant to stock option exercise	99	176
Repayment of long-term debt		(7,750)
Proceeds from long-term debt		15,000
Capital lease payments and other	(670)
Net cash used in financing activities	(20,414)	(13,252)
Effect of exchange rate changes on cash	548	(442)
Net change in cash and cash equivalents	10,620	10,447
Cash and cash equivalents at beginning of period	72,262	84,770
Cash and cash equivalents at end of period	82,882	95,217
Supplemental cash flow information:
Cash paid for interest	254	3,165
Cash paid for income taxes	454	28,564
Accrued unfunded future equity investment capital contributions		$ 1,531