Consolidated Statements of Cash Flows - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014
Cash Flows from Operating Activities:
Net loss	$ (7,021)	$ (23,988)
Adjustments to reconcile net loss to net cash provided by operating activities:
Gain on sale of property and equipment	(93)	(333)
Depletion of landfill operating lease obligations	4,359	5,038
Interest accretion on landfill and environmental remediation liabilities	1,704	1,826
Stock-based compensation	1,435	1,113
Depreciation and amortization	29,990	30,775
Divestiture transactions	(5,611)	7,455
Development project charge		1,394
Gain on settlement of acquisition related contingent consideration		(1,058)
Amortization of discount on long-term debt	174	125
Loss on debt extinguishment	521
Loss on derivative instruments	198	448
Income from equity method investments		(90)
Loss on sale of equity method investment		221
Excess tax benefit on the vesting of share based awards	(153)	(60)
Deferred income taxes	416	736
Changes in assets and liabilities, net of effects of acquisitions and divestitures:
Accounts receivable	(7,674)	(6,103)
Accounts payable	(371)	2,874
Prepaid expenses, inventories and other assets	5,678	1,059
Accrued expenses and other liabilities	337	1,014
Net cash provided by operating activities	23,889	22,446
Cash Flows from Investing Activities:
Proceeds from settlement of contingent consideration		214
Additions to property, plant and equipment	(16,311)	(23,305)
Payments on landfill operating lease contracts	(1,425)	(1,526)
Proceeds from divestiture transactions	5,335
Proceeds from sale of property and equipment	259	448
Proceeds from property insurance settlement	546
Payments related to investments		(84)
Net cash used in investing activities	(11,596)	(24,519)
Cash Flows from Financing Activities:
Proceeds from long-term borrowings	231,728	89,760
Principal payments on long-term debt	(239,340)	(87,258)
Change in restricted cash	5,677
Payments of financing costs	(8,063)	(18)
Excess tax benefit on the vesting of share based awards	153	60
Proceeds from the exercise of share based awards		286
Distribution to noncontrolling interest holder	(1,495)
Net cash (used in) provided by financing activities	(11,340)	2,830
Discontinued Operations:
Net cash provided by investing activities		174
Net cash provided by discontinued operations		174
Net increase in cash and cash equivalents	953	931
Cash and cash equivalents, beginning of period	2,205	2,695
Cash and cash equivalents, end of period	3,158	3,626
Cash paid during the period for:
Interest	17,063	17,551
Income taxes, net of refunds	55	3
Supplemental Disclosures of Non-Cash Investing and Financing Activities:
Receivable due from noncontrolling interest holder		152
Acquisition [Member]
Cash Flows from Investing Activities:
Additions to property, plant and equipment	$ (16,311)	$ (266)