| Component: (Network and Table) | |
|---|---|
| Network | 00400 - Statement - CONSOLIDATED STATEMENTS OF CASH FLOWS (http://www.usecology.com/role/StatementConsolidatedStatementsOfCashFlows)  | 
| Table | (Implied) | 
| Reporting Entity [Axis] | 0000742126 (http://www.sec.gov/CIK) | 
| CONSOLIDATED STATEMENTS OF CASH FLOWS | Period [Axis] | ||
|---|---|---|---|
2016-01-01 - 2016-12-31  | 2015-01-01 - 2015-12-31  | 2014-01-01 - 2014-12-31  | |
CONSOLIDATED STATEMENTS OF CASH FLOWS  | |||
Cash flows from operating activities:  | |||
Net income  | 34,252,000    | 25,611,000    | 38,236,000    | 
Adjustments to reconcile net income to net cash provided by operating activities:  | |||
Impairment charges  | 6,700,000    | ||
Depreciation and amortization of property and equipment  | |||
Amortization of intangible assets  | |||
Accretion of closure and post-closure obligations  | |||
Unrealized foreign currency loss  | |||
Deferred income taxes  | (  | (  | |
Share-based compensation expense  | |||
Unrecognized tax benefits  | (  | ||
Loss (gain) on disposition of business  | (  | ||
Net loss (gain) on disposition of assets  | (  | ||
Amortization of debt issuance costs  | |||
Amortization of debt discount  | |||
Changes in assets and liabilities (net of effects of business acquisitions and divestitures):  | |||
Receivables  | (  | ||
Income taxes receivable  | (  | (  | |
Other assets  | (  | ||
Accounts payable and accrued liabilities  | (  | (  | (  | 
Deferred revenue  | (  | (  | |
Accrued salaries and benefits  | (  | (  | |
Income taxes payable  | (  | (  | |
Closure and post-closure obligations  | (  | (  | (  | 
Net cash provided by operating activities  | |||
Cash flows from investing activities:  | |||
Proceeds from divestitures (net of cash divested)  | |||
Purchases of property and equipment  | (  | (  | (  | 
Purchases of restricted cash and investments  | (  | (  | (  | 
Proceeds from sale of restricted cash and investments  | |||
Proceeds from sale of short term investments  | |||
Proceeds from sale of property and equipment  | |||
Business acquisition (net of cash acquired)  | (  | (  | |
Net cash provided by (used in) investing activities  | (  | (  | |
Cash flows from financing activities:  | |||
Payments on long-term debt  | (  | (  | (  | 
Dividends paid  | (  | (  | (  | 
Proceeds from revolving credit facility  | |||
Payments on revolving credit facility  | (  | (  | |
Proceeds from exercise of stock options  | |||
Proceeds from issuance of long-term debt  | |||
Deferred financing costs paid  | (  | ||
Payment of equipment financing obligations  | (  | ||
Other  | (  | ||
Net cash (used in) provided by financing activities  | (  | (  | |
Effect of foreign exchange rate changes on cash  | (  | (  | (  | 
Increase (decrease) in cash and cash equivalents  | (  | (  | |
Cash and cash equivalents at beginning of period  | 5,989,000    | ||
Cash and cash equivalents at end of period  | 7,015,000    | 5,989,000    | 22,971,000    |