$CLH
CLEAN HARBORS INC Stock $clh

$clh Overview Financials Valuation SEC Filings Company Website

2011 Q4 Form 10-K Financial Statement

#000144530512000549 Filed on February 29, 2012

Income Statement

Concept	2011 Q4	2010 Q4	2010 Q3
Revenue	$545.9M	$417.1M	$487.7M
YoY Change	30.89%	20.19%	59.57%
Cost Of Revenue	$373.1M	$290.8M	$335.3M
YoY Change	28.33%	15.02%	58.97%
Gross Profit	$172.7M	$126.3M	$152.4M
YoY Change	36.79%	34.06%	60.91%
Gross Profit Margin	31.64%	30.28%	31.25%
Selling, General & Admin	$75.40M	$56.00M	$53.62M
YoY Change	34.64%	34.62%	15.56%
% of Gross Profit	43.65%	44.34%	35.19%
Research & Development
YoY Change
% of Gross Profit
Depreciation & Amortization	$35.70M	$24.80M	$22.89M
YoY Change	43.95%	13.24%	22.42%
% of Gross Profit	20.67%	19.64%	15.02%
Operating Expenses	$113.5M	$83.30M	$53.62M
YoY Change	36.25%	25.83%	-20.8%
Operating Profit	$59.25M	$43.00M	$73.37M
YoY Change	37.79%	53.56%	171.75%
Interest Expense	-$11.30M	-$6.200M	-$7.200M
YoY Change	82.26%	-4.62%	9.09%
% of Operating Profit	-19.07%	-14.42%	-9.81%
Other Income/Expense, Net	$471.0K	$310.0K	-$669.0K
YoY Change	51.94%	210.0%	-769.0%
Pretax Income	$48.40M	$37.10M	$63.21M
YoY Change	30.46%	71.76%	302.62%
Income Tax	$10.10M	$13.80M	$24.38M
% Of Pretax Income	20.87%	37.2%	38.58%
Net Earnings	$38.23M	$23.33M	$38.83M
YoY Change	63.89%	67.83%	322.03%
Net Earnings / Revenue	7.0%	5.59%	7.96%
Basic Earnings Per Share	$0.72	$0.44	$0.74
Diluted Earnings Per Share	$0.72	$0.44	$0.73
COMMON SHARES
Basic Shares Outstanding	53.06M shares		52.66M shares
Diluted Shares Outstanding			52.96M shares

Balance Sheet

Concept	2011 Q4	2010 Q4	2010 Q3
SHORT-TERM ASSETS
Cash & Short-Term Investments	$260.8M	$305.4M	$283.7M
YoY Change	-14.6%	29.63%	28.31%
Cash & Equivalents	$260.7M	$302.2M	$280.9M
Short-Term Investments	$100.0K	$3.200M	$2.800M
Other Short-Term Assets	$631.1M	$450.3M	$47.40M
YoY Change	40.15%	705.59%	-15.81%
Inventory	$56.20M	$44.50M	$42.70M
Prepaid Expenses
Receivables	$449.6M	$332.7M	$370.5M
Other Receivables	$0.00	$0.00	$0.00
Total Short-Term Assets	$891.9M	$752.5M	$744.4M
YoY Change	18.51%	21.32%	25.68%
LONG-TERM ASSETS
Property, Plant & Equipment	$903.9M	$655.4M	$627.3M
YoY Change	37.92%	11.1%	6.85%
Goodwill	$122.4M	$60.25M
YoY Change	103.13%	7.43%
Intangibles	$139.6M	$114.4M
YoY Change	22.07%
Long-Term Investments	$4.200M	$5.400M	$5.400M
YoY Change	-22.22%	-16.92%	-16.92%
Other Assets	$10.10M	$6.687M	$16.20M
YoY Change	51.04%	-52.57%	12.5%
Total Long-Term Assets	$1.194B	$849.9M	$822.0M
YoY Change	40.47%	8.85%	6.39%
TOTAL ASSETS
Total Short-Term Assets	$891.9M	$752.5M	$744.4M
Total Long-Term Assets	$1.194B	$849.9M	$822.0M
Total Assets	$2.086B	$1.602B	$1.566B
YoY Change	30.16%	14.37%	14.76%
SHORT-TERM LIABILITIES
YoY Change
Accounts Payable	$178.1M	$137.0M	$145.1M
YoY Change	30.01%	39.92%	72.94%
Accrued Expenses	$148.0M	$116.1M	$115.4M
YoY Change	27.48%	27.99%	29.52%
Deferred Revenue
YoY Change
Short-Term Debt	$0.00	$0.00	$0.00
YoY Change
Long-Term Debt Due	$8.300M	$8.000M	$5.100M
YoY Change	3.75%	321.05%	168.42%
Total Short-Term Liabilities	$381.7M	$306.3M	$314.2M
YoY Change	24.64%	31.28%	35.2%
LONG-TERM LIABILITIES
Long-Term Debt	$524.2M	$264.0M	$274.8M
YoY Change	98.56%	-11.79%	-8.25%
Other Long-Term Liabilities	$155.1M	$161.8M	$156.3M
YoY Change	-4.14%	-0.68%	-2.13%
Total Long-Term Liabilities	$803.1M	$515.4M	$431.1M
YoY Change	55.83%	11.5%	-6.12%
TOTAL LIABILITIES
Total Short-Term Liabilities	$381.7M	$306.3M	$314.2M
Total Long-Term Liabilities	$803.1M	$515.4M	$431.1M
Total Liabilities	$1.185B	$821.6M	$828.6M
YoY Change	44.2%	4.38%	6.79%
SHAREHOLDERS EQUITY
Retained Earnings	$371.7M	$244.4M
YoY Change	52.07%
Common Stock	$498.5M	$488.9M
YoY Change	1.95%
Preferred Stock
YoY Change
Treasury Stock (at cost)	$0.00	$2.467M
YoY Change	-100.0%
Treasury Stock Shares
Shareholders Equity	$901.0M	$780.8M	$737.8M
YoY Change
Total Liabilities & Shareholders Equity	$2.086B	$1.602B	$1.566B
YoY Change	30.16%	14.37%	14.76%

Cashflow Statement

Concept	2011 Q4	2010 Q4	2010 Q3
OPERATING ACTIVITIES
Net Income	$38.23M	$23.33M	$38.83M
YoY Change	63.89%	67.83%	322.03%
Depreciation, Depletion And Amortization	$35.70M	$24.80M	$22.89M
YoY Change	43.95%	13.24%	22.42%
Cash From Operating Activities	$28.20M	$70.20M	$56.60M
YoY Change	-59.83%	161.94%	225.29%
INVESTING ACTIVITIES
Capital Expenditures	-$35.40M	-$42.70M	-$40.30M
YoY Change	-17.1%	151.18%	214.84%
Acquisitions
YoY Change
Other Investing Activities	$900.0K	-$10.90M	-$1.200M
YoY Change	-108.26%	5350.0%	-97.46%
Cash From Investing Activities	-$34.60M	-$53.60M	-$41.50M
YoY Change	-35.45%	211.63%	-31.06%
FINANCING ACTIVITIES
Cash Dividend Paid
YoY Change
Common Stock Issuance & Retirement, Net
YoY Change
Debt Paid & Issued, Net
YoY Change
Cash From Financing Activities	10.80M	2.700M	-31.50M
YoY Change	300.0%	92.86%	-577.27%
NET CHANGE
Cash From Operating Activities	28.20M	70.20M	56.60M
Cash From Investing Activities	-34.60M	-53.60M	-41.50M
Cash From Financing Activities	10.80M	2.700M	-31.50M
Net Change In Cash	4.400M	19.30M	-16.40M
YoY Change	-77.2%	75.45%	-54.7%
FREE CASH FLOW
Cash From Operating Activities	$28.20M	$70.20M	$56.60M
Capital Expenditures	-$35.40M	-$42.70M	-$40.30M
Free Cash Flow	$63.60M	$112.9M	$96.90M
YoY Change	-43.67%	157.76%	220.86%

Facts In Submission

Frame	Concept Type	Concept / XBRL Key	Value	Unit
CY2010	us-gaap	Goodwill Purchase Accounting Adjustments GoodwillPurchaseAccountingAdjustments	-2454000	USD
CY2011	us-gaap	Goodwill Purchase Accounting Adjustments GoodwillPurchaseAccountingAdjustments	0	USD
CY2010	us-gaap	Goodwill Translation Adjustments GoodwillTranslationAdjustments	1228000	USD
CY2011	us-gaap	Goodwill Translation Adjustments GoodwillTranslationAdjustments	-2909000	USD
CY2010Q3	us-gaap	Gross Profit GrossProfit	152378000	USD
CY2010Q4	us-gaap	Gross Profit GrossProfit	126288000	USD
CY2010Q4	us-gaap	Accounts Payable Current AccountsPayableCurrent	136978000	USD
CY2011Q4	us-gaap	Accounts Payable Current AccountsPayableCurrent	178084000	USD
CY2010Q4	us-gaap	Accounts Receivable Net Current AccountsReceivableNetCurrent	332678000	USD
CY2011Q4	us-gaap	Accounts Receivable Net Current AccountsReceivableNetCurrent	449553000	USD
CY2010Q4	us-gaap	Accrual For Environmental Loss Contingencies AccrualForEnvironmentalLossContingencies	137613000	USD
CY2011Q4	us-gaap	Accrual For Environmental Loss Contingencies AccrualForEnvironmentalLossContingencies	135320000	USD
CY2011Q4	us-gaap	Additional Paid In Capital Common Stock AdditionalPaidInCapitalCommonStock	497919000	USD
CY2009	us-gaap	Adjustments To Additional Paid In Capital Tax Effect From Share Based Compensation AdjustmentsToAdditionalPaidInCapitalTaxEffectFromShareBasedCompensation	474000	USD
CY2011	us-gaap	Adjustments To Additional Paid In Capital Tax Effect From Share Based Compensation AdjustmentsToAdditionalPaidInCapitalTaxEffectFromShareBasedCompensation	3347000	USD
CY2009Q4	us-gaap	Accrual For Environmental Loss Contingencies AccrualForEnvironmentalLossContingencies	145486000	USD
CY2011Q4	us-gaap	Accrual For Environmental Loss Contingencies Discount AccrualForEnvironmentalLossContingenciesDiscount	37936000	USD
CY2011Q4	us-gaap	Accrual For Environmental Loss Contingencies Gross AccrualForEnvironmentalLossContingenciesGross	173256000	USD
CY2011	us-gaap	Accrual For Environmental Loss Contingencies Increase Decrease For Acquisitions And Divestitures AccrualForEnvironmentalLossContingenciesIncreaseDecreaseForAcquisitionsAndDivestitures	100000	USD
CY2010	us-gaap	Accrual For Environmental Loss Contingencies Increase Decrease For Revision In Estimates AccrualForEnvironmentalLossContingenciesIncreaseDecreaseForRevisionInEstimates	8190000	USD
CY2011	us-gaap	Accrual For Environmental Loss Contingencies Increase Decrease For Revision In Estimates AccrualForEnvironmentalLossContingenciesIncreaseDecreaseForRevisionInEstimates	1438000	USD
CY2011Q4	us-gaap	Accrual For Environmental Loss Contingencies Net AccrualForEnvironmentalLossContingenciesNet	135320000	USD
CY2011	us-gaap	Accrual For Environmental Loss Contingencies Payments AccrualForEnvironmentalLossContingenciesPayments	6787000	USD
CY2010	us-gaap	Accrual For Environmental Loss Contingencies Payments AccrualForEnvironmentalLossContingenciesPayments	7049000	USD
CY2011	us-gaap	Accrual For Environmental Loss Contingencies Provision For New Losses AccrualForEnvironmentalLossContingenciesProvisionForNewLosses	6298000	USD
CY2010	us-gaap	Accrual For Environmental Loss Contingencies Provision For New Losses AccrualForEnvironmentalLossContingenciesProvisionForNewLosses	6507000	USD
CY2011Q4	us-gaap	Accrual For Environmental Loss Contingencies Undiscounted Due After Fifth Year AccrualForEnvironmentalLossContingenciesUndiscountedDueAfterFifthYear	121365000	USD
CY2011Q4	us-gaap	Accrual For Environmental Loss Contingencies Undiscounted Due In Fifth Year AccrualForEnvironmentalLossContingenciesUndiscountedDueInFifthYear	10628000	USD
CY2011Q4	us-gaap	Accrual For Environmental Loss Contingencies Undiscounted Due In Fourth Year AccrualForEnvironmentalLossContingenciesUndiscountedDueInFourthYear	8011000	USD
CY2011Q4	us-gaap	Accrual For Environmental Loss Contingencies Undiscounted Due In Second Year AccrualForEnvironmentalLossContingenciesUndiscountedDueInSecondYear	12315000	USD
CY2011Q4	us-gaap	Accrual For Environmental Loss Contingencies Undiscounted Due In Third Year AccrualForEnvironmentalLossContingenciesUndiscountedDueInThirdYear	9893000	USD
CY2011Q4	us-gaap	Accrual For Environmental Loss Contingencies Undiscounted Due Within One Year AccrualForEnvironmentalLossContingenciesUndiscountedDueWithinOneYear	11044000	USD
CY2010Q4	us-gaap	Accrued Capping Closure Post Closure And Environmental Costs AccruedCappingClosurePostClosureAndEnvironmentalCosts	5849000	USD
CY2011Q4	us-gaap	Accrued Capping Closure Post Closure And Environmental Costs AccruedCappingClosurePostClosureAndEnvironmentalCosts	3885000	USD
CY2010Q4	us-gaap	Accrued Capping Closure Post Closure And Environmental Costs Noncurrent AccruedCappingClosurePostClosureAndEnvironmentalCostsNoncurrent	32830000	USD
CY2011Q4	us-gaap	Accrued Capping Closure Post Closure And Environmental Costs Noncurrent AccruedCappingClosurePostClosureAndEnvironmentalCostsNoncurrent	30996000	USD
CY2010Q4	us-gaap	Accrued Environmental Loss Contingencies Current AccruedEnvironmentalLossContingenciesCurrent	8669000	USD
CY2011Q4	us-gaap	Accrued Environmental Loss Contingencies Current AccruedEnvironmentalLossContingenciesCurrent	11174000	USD
CY2010Q4	us-gaap	Accrued Environmental Loss Contingencies Noncurrent AccruedEnvironmentalLossContingenciesNoncurrent	128944000	USD
CY2011Q4	us-gaap	Accrued Environmental Loss Contingencies Noncurrent AccruedEnvironmentalLossContingenciesNoncurrent	124146000	USD
CY2011Q4	us-gaap	Accrued Insurance Current AccruedInsuranceCurrent	21712000	USD
CY2010Q4	us-gaap	Accrued Insurance Current AccruedInsuranceCurrent	19736000	USD
CY2010Q4	us-gaap	Accrued Liabilities Current AccruedLiabilitiesCurrent	116089000	USD
CY2011Q4	us-gaap	Accrued Liabilities Current AccruedLiabilitiesCurrent	147992000	USD
CY2011Q4	us-gaap	Accumulated Depreciation Depletion And Amortization Property Plant And Equipment AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment	483335000	USD
CY2010Q4	us-gaap	Accumulated Depreciation Depletion And Amortization Property Plant And Equipment AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment	378655000	USD
CY2011Q4	us-gaap	Accumulated Other Comprehensive Income Loss Cumulative Changes In Net Gain Loss From Cash Flow Hedges Effect Net Of Tax AccumulatedOtherComprehensiveIncomeLossCumulativeChangesInNetGainLossFromCashFlowHedgesEffectNetOfTax	427000	USD
CY2009Q4	us-gaap	Accumulated Other Comprehensive Income Loss Cumulative Changes In Net Gain Loss From Cash Flow Hedges Effect Net Of Tax AccumulatedOtherComprehensiveIncomeLossCumulativeChangesInNetGainLossFromCashFlowHedgesEffectNetOfTax	-701000	USD
CY2010Q4	us-gaap	Accumulated Other Comprehensive Income Loss Cumulative Changes In Net Gain Loss From Cash Flow Hedges Effect Net Of Tax AccumulatedOtherComprehensiveIncomeLossCumulativeChangesInNetGainLossFromCashFlowHedgesEffectNetOfTax	111000	USD
CY2011Q4	us-gaap	Accumulated Other Comprehensive Income Loss Defined Benefit Pension And Other Postretirement Plans Net Of Tax AccumulatedOtherComprehensiveIncomeLossDefinedBenefitPensionAndOtherPostretirementPlansNetOfTax	1001000	USD
CY2010Q4	us-gaap	Accumulated Other Comprehensive Income Loss Defined Benefit Pension And Other Postretirement Plans Net Of Tax AccumulatedOtherComprehensiveIncomeLossDefinedBenefitPensionAndOtherPostretirementPlansNetOfTax	666000	USD
CY2009Q4	us-gaap	Accumulated Other Comprehensive Income Loss Defined Benefit Pension And Other Postretirement Plans Net Of Tax AccumulatedOtherComprehensiveIncomeLossDefinedBenefitPensionAndOtherPostretirementPlansNetOfTax	611000	USD
CY2009Q4	us-gaap	Accumulated Other Comprehensive Income Loss Foreign Currency Translation Adjustment Net Of Tax AccumulatedOtherComprehensiveIncomeLossForeignCurrencyTranslationAdjustmentNetOfTax	26430000	USD
CY2010Q4	us-gaap	Accumulated Other Comprehensive Income Loss Foreign Currency Translation Adjustment Net Of Tax AccumulatedOtherComprehensiveIncomeLossForeignCurrencyTranslationAdjustmentNetOfTax	50966000	USD
CY2011Q4	us-gaap	Accumulated Other Comprehensive Income Loss Foreign Currency Translation Adjustment Net Of Tax AccumulatedOtherComprehensiveIncomeLossForeignCurrencyTranslationAdjustmentNetOfTax	32702000	USD
CY2010Q4	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	50759000	USD
CY2011Q4	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	31353000	USD
CY2009Q4	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	26829000	USD
CY2010Q4	us-gaap	Additional Paid In Capital Common Stock AdditionalPaidInCapitalCommonStock	488384000	USD
CY2010	us-gaap	Adjustments To Additional Paid In Capital Tax Effect From Share Based Compensation AdjustmentsToAdditionalPaidInCapitalTaxEffectFromShareBasedCompensation	1739000	USD
CY2010Q4	us-gaap	Allowance For Doubtful Accounts Receivable Current AllowanceForDoubtfulAccountsReceivableCurrent	23704000	USD
CY2011Q4	us-gaap	Allowance For Doubtful Accounts Receivable Current AllowanceForDoubtfulAccountsReceivableCurrent	12683000	USD
CY2010	us-gaap	Amortization Of Financing Costs And Discounts AmortizationOfFinancingCostsAndDiscounts	2921000	USD
CY2011	us-gaap	Amortization Of Financing Costs And Discounts AmortizationOfFinancingCostsAndDiscounts	1572000	USD
CY2009	us-gaap	Amortization Of Financing Costs And Discounts AmortizationOfFinancingCostsAndDiscounts	1997000	USD
CY2011	us-gaap	Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount	0	shares
CY2010	us-gaap	Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount	0	shares
CY2011Q4	us-gaap	Asset Retirement Obligation AssetRetirementObligation	34881000	USD
CY2009Q4	us-gaap	Asset Retirement Obligation AssetRetirementObligation	35810000	USD
CY2010Q4	us-gaap	Asset Retirement Obligation AssetRetirementObligation	38679000	USD
CY2010	us-gaap	Asset Retirement Obligation Accretion Expense AssetRetirementObligationAccretionExpense	-3800000	USD
CY2011	us-gaap	Asset Retirement Obligation Accretion Expense AssetRetirementObligationAccretionExpense	-3381000	USD
CY2011	us-gaap	Asset Retirement Obligation Liabilities Incurred AssetRetirementObligationLiabilitiesIncurred	2469000	USD
CY2010	us-gaap	Asset Retirement Obligation Liabilities Incurred AssetRetirementObligationLiabilitiesIncurred	1873000	USD
CY2011	us-gaap	Asset Retirement Obligation Liabilities Settled AssetRetirementObligationLiabilitiesSettled	4532000	USD
CY2010	us-gaap	Asset Retirement Obligation Liabilities Settled AssetRetirementObligationLiabilitiesSettled	3187000	USD
CY2011Q4	us-gaap	Assets Assets	2085803000	USD
CY2010Q4	us-gaap	Assets Assets	1602475000	USD
CY2010Q4	us-gaap	Assets Current AssetsCurrent	752537000	USD
CY2011Q4	us-gaap	Assets Current AssetsCurrent	891868000	USD
CY2011	us-gaap	Auction Market Preferred Securities Stock Series Rate Setting Interval AuctionMarketPreferredSecuritiesStockSeriesRateSettingInterval	28	Days
CY2011Q4	us-gaap	Buildings And Improvements Gross BuildingsAndImprovementsGross	189445000	USD
CY2010Q4	us-gaap	Buildings And Improvements Gross BuildingsAndImprovementsGross	147285000	USD
CY2010Q4	us-gaap	Business Acquisition Equity Interest Issued Or Issuable Value Assigned BusinessAcquisitionEquityInterestIssuedOrIssuableValueAssigned	0	USD
CY2011Q4	us-gaap	Business Acquisition Equity Interest Issued Or Issuable Value Assigned BusinessAcquisitionEquityInterestIssuedOrIssuableValueAssigned	0	USD
CY2009Q4	us-gaap	Business Acquisition Equity Interest Issued Or Issuable Value Assigned BusinessAcquisitionEquityInterestIssuedOrIssuableValueAssigned	118427000	USD
CY2011Q4	us-gaap	Capital Lease Obligations Current CapitalLeaseObligationsCurrent	8310000	USD
CY2010Q4	us-gaap	Capital Lease Obligations Current CapitalLeaseObligationsCurrent	7954000	USD
CY2010	us-gaap	Capital Lease Obligations Incurred CapitalLeaseObligationsIncurred	10130000	USD
CY2011	us-gaap	Capital Lease Obligations Incurred CapitalLeaseObligationsIncurred	1807000	USD
CY2009	us-gaap	Capital Lease Obligations Incurred CapitalLeaseObligationsIncurred	0	USD
CY2010Q4	us-gaap	Capital Lease Obligations Noncurrent CapitalLeaseObligationsNoncurrent	6839000	USD
CY2011Q4	us-gaap	Capital Lease Obligations Noncurrent CapitalLeaseObligationsNoncurrent	6375000	USD
CY2011Q4	us-gaap	Capital Leases Future Minimum Payments Due CapitalLeasesFutureMinimumPaymentsDue	15915000	USD
CY2011Q4	us-gaap	Deferred Tax Assets Valuation Allowance DeferredTaxAssetsValuationAllowance	11473000	USD
CY2010Q4	us-gaap	Deferred Tax Assets Valuation Allowance DeferredTaxAssetsValuationAllowance	12919000	USD
CY2011Q4	us-gaap	Deferred Tax Liabilities Current DeferredTaxLiabilitiesCurrent	27918000	USD
CY2010Q4	us-gaap	Deferred Tax Liabilities Current DeferredTaxLiabilitiesCurrent	-2242000	USD
CY2011Q4	us-gaap	Capital Leases Future Minimum Payments Due Current CapitalLeasesFutureMinimumPaymentsDueCurrent	9049000	USD
CY2011Q4	us-gaap	Capital Leases Future Minimum Payments Due In Five Years CapitalLeasesFutureMinimumPaymentsDueInFiveYears	0	USD
CY2011Q4	us-gaap	Capital Leases Future Minimum Payments Due In Four Years CapitalLeasesFutureMinimumPaymentsDueInFourYears	375000	USD
CY2011Q4	us-gaap	Capital Leases Future Minimum Payments Due In Three Years CapitalLeasesFutureMinimumPaymentsDueInThreeYears	2343000	USD
CY2011Q4	us-gaap	Capital Leases Future Minimum Payments Due In Two Years CapitalLeasesFutureMinimumPaymentsDueInTwoYears	4148000	USD
CY2011Q4	us-gaap	Capital Leases Future Minimum Payments Due Thereafter CapitalLeasesFutureMinimumPaymentsDueThereafter	0	USD
CY2011Q4	us-gaap	Capital Leases Future Minimum Payments Present Value Of Net Minimum Payments CapitalLeasesFutureMinimumPaymentsPresentValueOfNetMinimumPayments	14685000	USD
CY2010Q4	us-gaap	Capitalized Costs Asset Retirement Costs CapitalizedCostsAssetRetirementCosts	2242000	USD
CY2011Q4	us-gaap	Capitalized Costs Asset Retirement Costs CapitalizedCostsAssetRetirementCosts	2529000	USD
CY2011Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	260723000	USD
CY2010Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	302210000	USD
CY2009Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	233546000	USD
CY2008Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	249524000	USD
CY2010	us-gaap	Cash And Cash Equivalents Period Increase Decrease CashAndCashEquivalentsPeriodIncreaseDecrease	68664000	USD
CY2011	us-gaap	Cash And Cash Equivalents Period Increase Decrease CashAndCashEquivalentsPeriodIncreaseDecrease	-41487000	USD
CY2009	us-gaap	Cash And Cash Equivalents Period Increase Decrease CashAndCashEquivalentsPeriodIncreaseDecrease	-15978000	USD
CY2010Q4	us-gaap	Common Stock Issued Employee Trust Deferred CommonStockIssuedEmployeeTrustDeferred	777000	USD
CY2011Q4	us-gaap	Common Stock Issued Employee Trust Deferred CommonStockIssuedEmployeeTrustDeferred	469000	USD
CY2011Q4	us-gaap	Common Stock Par Or Stated Value Per Share CommonStockParOrStatedValuePerShare	0.01
CY2010Q4	us-gaap	Common Stock Par Or Stated Value Per Share CommonStockParOrStatedValuePerShare	0.01
CY2011Q2	us-gaap	Common Stock Shares Authorized CommonStockSharesAuthorized	80000000	shares
CY2011Q2	us-gaap	Common Stock Shares Authorized CommonStockSharesAuthorized	40000000	shares
CY2010Q4	us-gaap	Common Stock Shares Authorized CommonStockSharesAuthorized	80000000	shares
CY2011Q4	us-gaap	Common Stock Shares Authorized CommonStockSharesAuthorized	80000000	shares
CY2011Q4	us-gaap	Common Stock Shares Issued CommonStockSharesIssued	53182859	shares
CY2010Q4	us-gaap	Common Stock Shares Issued CommonStockSharesIssued	52772392	shares
CY2010Q4	us-gaap	Common Stock Shares Outstanding CommonStockSharesOutstanding	52772392	shares
CY2011Q4	us-gaap	Common Stock Shares Outstanding CommonStockSharesOutstanding	53182859	shares
CY2010Q4	us-gaap	Common Stock Value CommonStockValue	528000	USD
CY2011Q4	us-gaap	Common Stock Value CommonStockValue	532000	USD
CY2011	us-gaap	Defined Benefit Plan Foreign Currency Exchange Rate Changes Benefit Obligation DefinedBenefitPlanForeignCurrencyExchangeRateChangesBenefitObligation	-163000	USD
CY2011	us-gaap	Comparability Of Prior Year Financial Data ComparabilityOfPriorYearFinancialData	<div style="font-family:Times New Roman;font-size:10pt;"><div style="line-height:120%;padding-bottom:10px;padding-top:10px;text-indent:26px;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;font-style:italic;">Reclassifications</font></div><div style="line-height:120%;text-align:left;text-indent:30px;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">During the quarter ended March 31, 2011, the Company re-aligned its management reporting structure. Under the new structure, the Company's operations are managed in </font><font style="font-family:inherit;font-size:10pt;color:#000000;text-decoration:none;">four</font><font style="font-family:inherit;font-size:10pt;"> segments: Technical Services, Field Services, Industrial Services and Oil and Gas Field Services. The new segment, Oil and Gas Field Services, consists of the previous Exploration Services segment, as well as certain departments that were re-assigned from the Industrial Services segment. In addition, certain departments from the Field Services segment were re-assigned to the Industrial Services segment. Accordingly, the Company re-aligned and re-allocated departmental costs being allocated among the segments to support these management reporting changes. The Company has recast the prior period segment information to conform to the current year presentation. </font></div><div style="line-height:120%;padding-bottom:10px;padding-top:10px;text-indent:26px;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;font-style:italic;"></font></div></div>
CY2011Q4	us-gaap	Construction In Progress Gross ConstructionInProgressGross	24522000	USD
CY2010Q4	us-gaap	Construction In Progress Gross ConstructionInProgressGross	33005000	USD
CY2010	us-gaap	Cost Of Services CostOfServices	1210740000	USD
CY2009	us-gaap	Cost Of Services CostOfServices	753483000	USD
CY2011	us-gaap	Cost Of Services CostOfServices	1379991000	USD
CY2010Q2	us-gaap	Cost Of Services CostOfServices	324280000	USD
CY2010Q4	us-gaap	Cost Of Services CostOfServices	290770000	USD
CY2010Q3	us-gaap	Cost Of Services CostOfServices	335273000	USD
CY2010Q1	us-gaap	Cost Of Services CostOfServices	260417000	USD
CY2011Q1	us-gaap	Cost Of Services CostOfServices	312577000	USD
CY2011Q4	us-gaap	Cost Of Services CostOfServices	373142000	USD
CY2011Q2	us-gaap	Cost Of Services CostOfServices	307754000	USD
CY2011Q3	us-gaap	Cost Of Services CostOfServices	386518000	USD
CY2010	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	48974000	USD
CY2009	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	12059000	USD
CY2011	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	16285000	USD
CY2010	us-gaap	Current Foreign Tax Expense Benefit CurrentForeignTaxExpenseBenefit	-5687000	USD
CY2009	us-gaap	Current Foreign Tax Expense Benefit CurrentForeignTaxExpenseBenefit	6868000	USD
CY2011	us-gaap	Current Foreign Tax Expense Benefit CurrentForeignTaxExpenseBenefit	-2697000	USD
CY2011	us-gaap	Current Income Tax Expense Benefit CurrentIncomeTaxExpenseBenefit	19590000	USD
CY2010	us-gaap	Current Income Tax Expense Benefit CurrentIncomeTaxExpenseBenefit	53684000	USD
CY2009	us-gaap	Current Income Tax Expense Benefit CurrentIncomeTaxExpenseBenefit	22090000	USD
CY2010	us-gaap	Current State And Local Tax Expense Benefit CurrentStateAndLocalTaxExpenseBenefit	10397000	USD
CY2009	us-gaap	Current State And Local Tax Expense Benefit CurrentStateAndLocalTaxExpenseBenefit	3163000	USD
CY2011	us-gaap	Current State And Local Tax Expense Benefit CurrentStateAndLocalTaxExpenseBenefit	6002000	USD
CY2011Q4	us-gaap	Debt Instrument Carrying Amount DebtInstrumentCarryingAmount	270000000	USD
CY2011Q4	us-gaap	Debt Instrument Interest Rate Stated Percentage DebtInstrumentInterestRateStatedPercentage	0.07625
CY2010	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	1207000	USD
CY2011	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	22455000	USD
CY2009	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	4965000	USD
CY2010Q4	us-gaap	Deferred Finance Costs Current Net DeferredFinanceCostsCurrentNet	6891000	USD
CY2011Q4	us-gaap	Deferred Finance Costs Current Net DeferredFinanceCostsCurrentNet	5903000	USD
CY2010Q4	us-gaap	Deferred Finance Costs Noncurrent Net DeferredFinanceCostsNoncurrentNet	7768000	USD
CY2011Q4	us-gaap	Deferred Finance Costs Noncurrent Net DeferredFinanceCostsNoncurrentNet	13607000	USD
CY2011	us-gaap	Deferred Foreign Income Tax Expense Benefit DeferredForeignIncomeTaxExpenseBenefit	12671000	USD
CY2009	us-gaap	Deferred Foreign Income Tax Expense Benefit DeferredForeignIncomeTaxExpenseBenefit	-1204000	USD
CY2010	us-gaap	Deferred Foreign Income Tax Expense Benefit DeferredForeignIncomeTaxExpenseBenefit	3598000	USD
CY2010	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	4919000	USD
CY2009	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	4830000	USD
CY2011	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	37836000	USD
CY2011Q4	us-gaap	Deferred Revenue And Credits Current DeferredRevenueAndCreditsCurrent	32297000	USD
CY2010Q4	us-gaap	Deferred Revenue And Credits Current DeferredRevenueAndCreditsCurrent	30745000	USD
CY2011	us-gaap	Deferred State And Local Income Tax Expense Benefit DeferredStateAndLocalIncomeTaxExpenseBenefit	2710000	USD
CY2009	us-gaap	Deferred State And Local Income Tax Expense Benefit DeferredStateAndLocalIncomeTaxExpenseBenefit	968000	USD
CY2010	us-gaap	Deferred State And Local Income Tax Expense Benefit DeferredStateAndLocalIncomeTaxExpenseBenefit	-647000	USD
CY2011Q4	us-gaap	Deferred Tax Assets Liabilities Net DeferredTaxAssetsLiabilitiesNet	-16445000	USD
CY2010Q4	us-gaap	Deferred Tax Assets Liabilities Net DeferredTaxAssetsLiabilitiesNet	15161000	USD
CY2011Q4	us-gaap	Deferred Tax Assets Net DeferredTaxAssetsNet	118217000	USD
CY2010Q4	us-gaap	Deferred Tax Assets Net DeferredTaxAssetsNet	99199000	USD
CY2011Q4	us-gaap	Deferred Tax Assets Net Current DeferredTaxAssetsNetCurrent	16602000	USD
CY2010Q4	us-gaap	Deferred Tax Assets Net Current DeferredTaxAssetsNetCurrent	14982000	USD
CY2011Q4	us-gaap	Deferred Tax Assets Operating Loss Carryforwards DeferredTaxAssetsOperatingLossCarryforwards	23663000	USD
CY2010Q4	us-gaap	Deferred Tax Assets Operating Loss Carryforwards DeferredTaxAssetsOperatingLossCarryforwards	2246000	USD
CY2011Q4	us-gaap	Deferred Tax Assets Operating Loss Carryforwards Domestic DeferredTaxAssetsOperatingLossCarryforwardsDomestic	15300000	USD
CY2011Q4	us-gaap	Deferred Tax Assets Operating Loss Carryforwards Foreign DeferredTaxAssetsOperatingLossCarryforwardsForeign	800000	USD
CY2011Q4	us-gaap	Deferred Tax Assets Operating Loss Carryforwards State And Local DeferredTaxAssetsOperatingLossCarryforwardsStateAndLocal	18700000	USD
CY2010Q4	us-gaap	Deferred Tax Assets Other DeferredTaxAssetsOther	4359000	USD
CY2011Q4	us-gaap	Deferred Tax Assets Other DeferredTaxAssetsOther	4421000	USD
CY2010Q4	us-gaap	Deferred Tax Assets Tax Credit Carryforwards DeferredTaxAssetsTaxCreditCarryforwards	17324000	USD
CY2011Q4	us-gaap	Deferred Tax Assets Tax Credit Carryforwards DeferredTaxAssetsTaxCreditCarryforwards	19977000	USD
CY2011Q4	us-gaap	Deferred Tax Assets Tax Credit Carryforwards Foreign DeferredTaxAssetsTaxCreditCarryforwardsForeign	19977000	USD
CY2011Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Compensation And Benefits Employee Compensation DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsEmployeeCompensation	5011000	USD
CY2010Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Compensation And Benefits Employee Compensation DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsEmployeeCompensation	4750000	USD
CY2010Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Allowance For Doubtful Accounts DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsAllowanceForDoubtfulAccounts	8191000	USD
CY2011Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Allowance For Doubtful Accounts DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsAllowanceForDoubtfulAccounts	4803000	USD
CY2010Q4	us-gaap	Deferred Tax Liabilities Property Plant And Equipment DeferredTaxLiabilitiesPropertyPlantAndEquipment	64626000	USD
CY2011Q4	us-gaap	Deferred Tax Liabilities Property Plant And Equipment DeferredTaxLiabilitiesPropertyPlantAndEquipment	114115000	USD
CY2011Q4	us-gaap	Defined Benefit Plan Accumulated Benefit Obligation DefinedBenefitPlanAccumulatedBenefitObligation	7700000	USD
CY2010Q4	us-gaap	Defined Benefit Plan Accumulated Benefit Obligation DefinedBenefitPlanAccumulatedBenefitObligation	7700000	USD
CY2009Q4	us-gaap	Defined Benefit Plan Accumulated Other Comprehensive Income Net Prior Service Cost Credit Before Tax DefinedBenefitPlanAccumulatedOtherComprehensiveIncomeNetPriorServiceCostCreditBeforeTax	-85000	USD
CY2010Q4	us-gaap	Defined Benefit Plan Accumulated Other Comprehensive Income Net Prior Service Cost Credit Before Tax DefinedBenefitPlanAccumulatedOtherComprehensiveIncomeNetPriorServiceCostCreditBeforeTax	-32000	USD
CY2011Q4	us-gaap	Defined Benefit Plan Accumulated Other Comprehensive Income Net Prior Service Cost Credit Before Tax DefinedBenefitPlanAccumulatedOtherComprehensiveIncomeNetPriorServiceCostCreditBeforeTax	-34000	USD
CY2011	us-gaap	Defined Benefit Plan Actual Return On Plan Assets DefinedBenefitPlanActualReturnOnPlanAssets	102000	USD
CY2010	us-gaap	Defined Benefit Plan Actual Return On Plan Assets DefinedBenefitPlanActualReturnOnPlanAssets	445000	USD
CY2010	us-gaap	Defined Benefit Plan Actuarial Net Gains Losses DefinedBenefitPlanActuarialNetGainsLosses	87000	USD
CY2011	us-gaap	Defined Benefit Plan Actuarial Net Gains Losses DefinedBenefitPlanActuarialNetGainsLosses	39000	USD
CY2010	us-gaap	Defined Benefit Plan Amortization Of Gains Losses DefinedBenefitPlanAmortizationOfGainsLosses	-31000	USD
CY2009	us-gaap	Defined Benefit Plan Amortization Of Gains Losses DefinedBenefitPlanAmortizationOfGainsLosses	-78000	USD
CY2011	us-gaap	Defined Benefit Plan Amortization Of Gains Losses DefinedBenefitPlanAmortizationOfGainsLosses	-35000	USD
CY2009	us-gaap	Defined Benefit Plan Amounts Recognized In Other Comprehensive Income Net Gain Loss Before Tax DefinedBenefitPlanAmountsRecognizedInOtherComprehensiveIncomeNetGainLossBeforeTax	1100000	USD
CY2011	us-gaap	Defined Benefit Plan Amounts Recognized In Other Comprehensive Income Net Gain Loss Before Tax DefinedBenefitPlanAmountsRecognizedInOtherComprehensiveIncomeNetGainLossBeforeTax	1600000	USD
CY2010	us-gaap	Defined Benefit Plan Amounts Recognized In Other Comprehensive Income Net Gain Loss Before Tax DefinedBenefitPlanAmountsRecognizedInOtherComprehensiveIncomeNetGainLossBeforeTax	1200000	USD
CY2011	us-gaap	Defined Benefit Plan Amounts That Will Be Amortized From Accumulated Other Comprehensive Income Loss In Next Fiscal Year DefinedBenefitPlanAmountsThatWillBeAmortizedFromAccumulatedOtherComprehensiveIncomeLossInNextFiscalYear	67000	USD
CY2010Q4	us-gaap	Defined Benefit Plan Assumptions Used Calculating Benefit Obligation Discount Rate DefinedBenefitPlanAssumptionsUsedCalculatingBenefitObligationDiscountRate	0.0575
CY2011Q4	us-gaap	Defined Benefit Plan Assumptions Used Calculating Benefit Obligation Discount Rate DefinedBenefitPlanAssumptionsUsedCalculatingBenefitObligationDiscountRate	0.0540
CY2009Q4	us-gaap	Defined Benefit Plan Assumptions Used Calculating Benefit Obligation Discount Rate DefinedBenefitPlanAssumptionsUsedCalculatingBenefitObligationDiscountRate	0.0575
CY2009Q4	us-gaap	Defined Benefit Plan Assumptions Used Calculating Benefit Obligation Rate Of Compensation Increase DefinedBenefitPlanAssumptionsUsedCalculatingBenefitObligationRateOfCompensationIncrease	0.0325
CY2010Q4	us-gaap	Defined Benefit Plan Assumptions Used Calculating Benefit Obligation Rate Of Compensation Increase DefinedBenefitPlanAssumptionsUsedCalculatingBenefitObligationRateOfCompensationIncrease	0.0375
CY2011Q4	us-gaap	Defined Benefit Plan Assumptions Used Calculating Benefit Obligation Rate Of Compensation Increase DefinedBenefitPlanAssumptionsUsedCalculatingBenefitObligationRateOfCompensationIncrease	0.0375
CY2009Q4	us-gaap	Defined Benefit Plan Benefit Obligation DefinedBenefitPlanBenefitObligation	7138000	USD
CY2011Q4	us-gaap	Defined Benefit Plan Benefit Obligation DefinedBenefitPlanBenefitObligation	8227000	USD
CY2010Q4	us-gaap	Defined Benefit Plan Benefit Obligation DefinedBenefitPlanBenefitObligation	7933000	USD
CY2010	us-gaap	Defined Benefit Plan Benefits Paid DefinedBenefitPlanBenefitsPaid	-253000	USD
CY2011	us-gaap	Defined Benefit Plan Benefits Paid DefinedBenefitPlanBenefitsPaid	-250000	USD
CY2011	us-gaap	Defined Benefit Plan Contributions By Employer DefinedBenefitPlanContributionsByEmployer	254000	USD
CY2010	us-gaap	Defined Benefit Plan Contributions By Employer DefinedBenefitPlanContributionsByEmployer	406000	USD
CY2011	us-gaap	Defined Benefit Plan Contributions By Plan Participants DefinedBenefitPlanContributionsByPlanParticipants	50000	USD
CY2010	us-gaap	Defined Benefit Plan Contributions By Plan Participants DefinedBenefitPlanContributionsByPlanParticipants	27000	USD
CY2011Q4	us-gaap	Defined Benefit Plan Estimated Future Employer Contributions In Next Fiscal Year DefinedBenefitPlanEstimatedFutureEmployerContributionsInNextFiscalYear	215000	USD
CY2011Q4	us-gaap	Defined Benefit Plan Expected Future Benefit Payments In Five Fiscal Years Thereafter DefinedBenefitPlanExpectedFutureBenefitPaymentsInFiveFiscalYearsThereafter	1933000	USD
CY2011Q4	us-gaap	Defined Benefit Plan Expected Future Benefit Payments In Year Five DefinedBenefitPlanExpectedFutureBenefitPaymentsInYearFive	348000	USD
CY2011Q4	us-gaap	Defined Benefit Plan Expected Future Benefit Payments In Year Four DefinedBenefitPlanExpectedFutureBenefitPaymentsInYearFour	321000	USD
CY2011Q4	us-gaap	Defined Benefit Plan Expected Future Benefit Payments In Year One DefinedBenefitPlanExpectedFutureBenefitPaymentsInYearOne	283000	USD
CY2011Q4	us-gaap	Defined Benefit Plan Expected Future Benefit Payments In Year Three DefinedBenefitPlanExpectedFutureBenefitPaymentsInYearThree	285000	USD
CY2011Q4	us-gaap	Defined Benefit Plan Expected Future Benefit Payments In Year Two DefinedBenefitPlanExpectedFutureBenefitPaymentsInYearTwo	290000	USD
CY2010	us-gaap	Defined Benefit Plan Expected Return On Plan Assets DefinedBenefitPlanExpectedReturnOnPlanAssets	466000	USD
CY2009	us-gaap	Defined Benefit Plan Expected Return On Plan Assets DefinedBenefitPlanExpectedReturnOnPlanAssets	368000	USD
CY2011	us-gaap	Defined Benefit Plan Expected Return On Plan Assets DefinedBenefitPlanExpectedReturnOnPlanAssets	502000	USD
CY2011Q4	us-gaap	Defined Benefit Plan Fair Value Of Plan Assets DefinedBenefitPlanFairValueOfPlanAssets	7666000	USD
CY2010Q4	us-gaap	Defined Benefit Plan Fair Value Of Plan Assets DefinedBenefitPlanFairValueOfPlanAssets	7660000	USD
CY2009Q4	us-gaap	Defined Benefit Plan Fair Value Of Plan Assets DefinedBenefitPlanFairValueOfPlanAssets	6683000	USD
CY2010Q4	us-gaap	Defined Benefit Plan Funded Status Of Plan DefinedBenefitPlanFundedStatusOfPlan	-273000	USD
CY2011Q4	us-gaap	Defined Benefit Plan Funded Status Of Plan DefinedBenefitPlanFundedStatusOfPlan	-561000	USD
CY2010	us-gaap	Defined Benefit Plan Foreign Currency Exchange Rate Changes Benefit Obligation DefinedBenefitPlanForeignCurrencyExchangeRateChangesBenefitObligation	369000	USD
CY2010	us-gaap	Defined Benefit Plan Foreign Currency Exchange Rate Changes Plan Assets DefinedBenefitPlanForeignCurrencyExchangeRateChangesPlanAssets	352000	USD
CY2011	us-gaap	Defined Benefit Plan Foreign Currency Exchange Rate Changes Plan Assets DefinedBenefitPlanForeignCurrencyExchangeRateChangesPlanAssets	-150000	USD
CY2011	us-gaap	Defined Benefit Plan Interest Cost DefinedBenefitPlanInterestCost	462000	USD
CY2010	us-gaap	Defined Benefit Plan Interest Cost DefinedBenefitPlanInterestCost	421000	USD
CY2009	us-gaap	Defined Benefit Plan Interest Cost DefinedBenefitPlanInterestCost	416000	USD
CY2010	us-gaap	Defined Benefit Plan Net Periodic Benefit Cost DefinedBenefitPlanNetPeriodicBenefitCost	130000	USD
CY2011	us-gaap	Defined Benefit Plan Net Periodic Benefit Cost DefinedBenefitPlanNetPeriodicBenefitCost	151000	USD
CY2009	us-gaap	Defined Benefit Plan Net Periodic Benefit Cost DefinedBenefitPlanNetPeriodicBenefitCost	241000	USD
CY2010	us-gaap	Defined Benefit Plan Service Cost DefinedBenefitPlanServiceCost	144000	USD
CY2011	us-gaap	Defined Benefit Plan Service Cost DefinedBenefitPlanServiceCost	156000	USD
CY2009	us-gaap	Defined Benefit Plan Service Cost DefinedBenefitPlanServiceCost	115000	USD
CY2011	us-gaap	Defined Benefit Plan Target Allocation Percentage Of Assets Debt Securities DefinedBenefitPlanTargetAllocationPercentageOfAssetsDebtSecurities	0.35
CY2011	us-gaap	Defined Benefit Plan Target Allocation Percentage Of Assets Equity Securities DefinedBenefitPlanTargetAllocationPercentageOfAssetsEquitySecurities	0.60
CY2011	us-gaap	Defined Benefit Plan Target Allocation Percentage Of Assets Other DefinedBenefitPlanTargetAllocationPercentageOfAssetsOther	0.05
CY2011Q4	us-gaap	Defined Benefit Plan Weighted Average Asset Allocations DefinedBenefitPlanWeightedAverageAssetAllocations	1.00
CY2010Q4	us-gaap	Defined Benefit Plan Weighted Average Asset Allocations DefinedBenefitPlanWeightedAverageAssetAllocations	1.00
CY2011	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	122663000	USD
CY2009	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	64898000	USD
CY2010	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	92473000	USD
CY2010	us-gaap	Discontinued Operation Gain Loss On Disposal Of Discontinued Operation Net Of Tax DiscontinuedOperationGainLossOnDisposalOfDiscontinuedOperationNetOfTax	1300000	USD
CY2010	us-gaap	Discontinued Operation Income Loss From Discontinued Operation During Phase Out Period Net Of Tax DiscontinuedOperationIncomeLossFromDiscontinuedOperationDuringPhaseOutPeriodNetOfTax	2200000	USD
CY2009	us-gaap	Discontinued Operation Income Loss From Discontinued Operation During Phase Out Period Net Of Tax DiscontinuedOperationIncomeLossFromDiscontinuedOperationDuringPhaseOutPeriodNetOfTax	3100000	USD
CY2010	us-gaap	Discontinued Operation Tax Effect Of Income Loss From Discontinued Operation During Phase Out Period DiscontinuedOperationTaxEffectOfIncomeLossFromDiscontinuedOperationDuringPhaseOutPeriod	2500000	USD
CY2009	us-gaap	Discontinued Operation Tax Effect Of Income Loss From Discontinued Operation During Phase Out Period DiscontinuedOperationTaxEffectOfIncomeLossFromDiscontinuedOperationDuringPhaseOutPeriod	2000000	USD
CY2010Q4	us-gaap	Disposal Group Including Discontinued Operation Accrued Liabilities DisposalGroupIncludingDiscontinuedOperationAccruedLiabilities	2173000	USD
CY2011Q4	us-gaap	Disposal Group Including Discontinued Operation Accrued Liabilities DisposalGroupIncludingDiscontinuedOperationAccruedLiabilities	2455000	USD
CY2010	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	2.48
CY2011	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	2.40
CY2009	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.74
CY2010Q2	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	1.1
CY2010Q4	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.44
CY2010Q1	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.2
CY2010Q3	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.74
CY2011Q4	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.72
CY2011Q2	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.55
CY2011Q1	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.43
CY2011Q3	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.70
CY2010	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	2.47
CY2009	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.74
CY2011	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	2.39
CY2010Q2	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	1.1
CY2010Q1	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.2
CY2010Q4	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.44
CY2010Q3	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.73
CY2011Q4	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.72
CY2011Q1	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.43
CY2011Q2	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.55
CY2011Q3	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.70
CY2011	us-gaap	Effect Of Exchange Rate On Cash And Cash Equivalents EffectOfExchangeRateOnCashAndCashEquivalents	423000	USD
CY2009	us-gaap	Effect Of Exchange Rate On Cash And Cash Equivalents EffectOfExchangeRateOnCashAndCashEquivalents	5559000	USD
CY2010	us-gaap	Effect Of Exchange Rate On Cash And Cash Equivalents EffectOfExchangeRateOnCashAndCashEquivalents	2473000	USD
CY2011Q4	us-gaap	Employee Related Liabilities Current EmployeeRelatedLiabilitiesCurrent	56029000	USD
CY2010Q4	us-gaap	Employee Related Liabilities Current EmployeeRelatedLiabilitiesCurrent	44545000	USD
CY2011Q4	us-gaap	Employee Service Share Based Compensation Nonvested Awards Total Compensation Cost Not Yet Recognized EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized	0	USD
CY2010	us-gaap	Employee Service Share Based Compensation Tax Benefit From Compensation Expense EmployeeServiceShareBasedCompensationTaxBenefitFromCompensationExpense	2700000	USD
CY2011	us-gaap	Employee Service Share Based Compensation Tax Benefit From Compensation Expense EmployeeServiceShareBasedCompensationTaxBenefitFromCompensationExpense	2400000	USD
CY2009	us-gaap	Employee Service Share Based Compensation Tax Benefit From Compensation Expense EmployeeServiceShareBasedCompensationTaxBenefitFromCompensationExpense	400000	USD
CY2011	us-gaap	Environmental Exit Costs Reasonably Possible Additional Losses High Estimate EnvironmentalExitCostsReasonablyPossibleAdditionalLossesHighEstimate	19742000	USD
CY2009	us-gaap	Excess Tax Benefit From Share Based Compensation Financing Activities ExcessTaxBenefitFromShareBasedCompensationFinancingActivities	481000	USD
CY2010	us-gaap	Excess Tax Benefit From Share Based Compensation Financing Activities ExcessTaxBenefitFromShareBasedCompensationFinancingActivities	1751000	USD
CY2011	us-gaap	Excess Tax Benefit From Share Based Compensation Financing Activities ExcessTaxBenefitFromShareBasedCompensationFinancingActivities	3352000	USD
CY2011	us-gaap	Excess Tax Benefit From Share Based Compensation Operating Activities ExcessTaxBenefitFromShareBasedCompensationOperatingActivities	3352000	USD
CY2009	us-gaap	Excess Tax Benefit From Share Based Compensation Operating Activities ExcessTaxBenefitFromShareBasedCompensationOperatingActivities	481000	USD
CY2010	us-gaap	Excess Tax Benefit From Share Based Compensation Operating Activities ExcessTaxBenefitFromShareBasedCompensationOperatingActivities	1751000	USD
CY2011	us-gaap	Financial Guarantee Insurance Contracts Claim Liability Weighted Average Risk Free Discount Rate FinancialGuaranteeInsuranceContractsClaimLiabilityWeightedAverageRiskFreeDiscountRate	0.0069
CY2010	us-gaap	Financial Guarantee Insurance Contracts Claim Liability Weighted Average Risk Free Discount Rate FinancialGuaranteeInsuranceContractsClaimLiabilityWeightedAverageRiskFreeDiscountRate	0.0124
CY2010Q4	us-gaap	Finite Lived Intangible Assets Accumulated Amortization FiniteLivedIntangibleAssetsAccumulatedAmortization	60633000	USD
CY2011Q4	us-gaap	Finite Lived Intangible Assets Accumulated Amortization FiniteLivedIntangibleAssetsAccumulatedAmortization	72544000	USD
CY2010	us-gaap	Finite Lived Intangible Assets Amortization Expense FiniteLivedIntangibleAssetsAmortizationExpense	10900000	USD
CY2009	us-gaap	Finite Lived Intangible Assets Amortization Expense FiniteLivedIntangibleAssetsAmortizationExpense	7700000	USD
CY2011	us-gaap	Finite Lived Intangible Assets Amortization Expense FiniteLivedIntangibleAssetsAmortizationExpense	12400000	USD
CY2011	us-gaap	Finite Lived Intangible Assets Future Amortization Expense FiniteLivedIntangibleAssetsFutureAmortizationExpense	137278000	USD
CY2011Q4	us-gaap	Finite Lived Intangible Assets Gross FiniteLivedIntangibleAssetsGross	212188000	USD
CY2010Q4	us-gaap	Finite Lived Intangible Assets Gross FiniteLivedIntangibleAssetsGross	175033000	USD
CY2011	us-gaap	Finite Lived Intangible Assets Useful Life Maximum FiniteLivedIntangibleAssetsUsefulLifeMaximum	12
CY2011	us-gaap	Finite Lived Intangible Assets Useful Life Minimum FiniteLivedIntangibleAssetsUsefulLifeMinimum	3
CY2010	us-gaap	Finite Lived Intangible Assets Weighted Average Useful Life FiniteLivedIntangibleAssetsWeightedAverageUsefulLife	9.7	Years
CY2011	us-gaap	Finite Lived Intangible Assets Weighted Average Useful Life FiniteLivedIntangibleAssetsWeightedAverageUsefulLife	10.0	Years
CY2011	us-gaap	Foreign Currency Transaction Gain Loss Unrealized ForeignCurrencyTransactionGainLossUnrealized	-55000	USD
CY2009	us-gaap	Foreign Currency Transaction Gain Loss Unrealized ForeignCurrencyTransactionGainLossUnrealized	1574000	USD
CY2010	us-gaap	Foreign Currency Transaction Gain Loss Unrealized ForeignCurrencyTransactionGainLossUnrealized	-38000	USD
CY2010Q4	us-gaap	Furniture And Fixtures Gross FurnitureAndFixturesGross	2293000	USD
CY2011Q4	us-gaap	Furniture And Fixtures Gross FurnitureAndFixturesGross	3759000	USD
CY2011	us-gaap	Future Amortization Expense After Year Five FutureAmortizationExpenseAfterYearFive	73553000	USD
CY2011	us-gaap	Future Amortization Expense Year Five FutureAmortizationExpenseYearFive	11277000	USD
CY2011	us-gaap	Future Amortization Expense Year Four FutureAmortizationExpenseYearFour	12093000	USD
CY2011	us-gaap	Future Amortization Expense Year One FutureAmortizationExpenseYearOne	14124000	USD
CY2011	us-gaap	Future Amortization Expense Year Three FutureAmortizationExpenseYearThree	12729000	USD
CY2011	us-gaap	Future Amortization Expense Year Two FutureAmortizationExpenseYearTwo	13502000	USD
CY2010	us-gaap	Gains Losses On Extinguishment Of Debt GainsLossesOnExtinguishmentOfDebt	-2294000	USD
CY2011	us-gaap	Gains Losses On Extinguishment Of Debt GainsLossesOnExtinguishmentOfDebt	0	USD
CY2009	us-gaap	Gains Losses On Extinguishment Of Debt GainsLossesOnExtinguishmentOfDebt	-4853000	USD
CY2011Q4	us-gaap	Goodwill Goodwill	122392000	USD
CY2010Q4	us-gaap	Goodwill Goodwill	60252000	USD
CY2009Q4	us-gaap	Goodwill Goodwill	56085000	USD
CY2011	us-gaap	Goodwill Acquired During Period GoodwillAcquiredDuringPeriod	65049000	USD
CY2010	us-gaap	Goodwill Acquired During Period GoodwillAcquiredDuringPeriod	5393000	USD
CY2011Q1	us-gaap	Gross Profit GrossProfit	122385000	USD
CY2011Q3	us-gaap	Gross Profit GrossProfit	169535000	USD
CY2010Q2	us-gaap	Gross Profit GrossProfit	147359000	USD
CY2010Q1	us-gaap	Gross Profit GrossProfit	94479000	USD
CY2011Q2	us-gaap	Gross Profit GrossProfit	139481000	USD
CY2011Q4	us-gaap	Gross Profit GrossProfit	172744000	USD
CY2010	us-gaap	Income Loss From Continuing Operations Before Income Taxes Domestic IncomeLossFromContinuingOperationsBeforeIncomeTaxesDomestic	161969000	USD
CY2011	us-gaap	Income Loss From Continuing Operations Before Income Taxes Domestic IncomeLossFromContinuingOperationsBeforeIncomeTaxesDomestic	128201000	USD
CY2009	us-gaap	Income Loss From Continuing Operations Before Income Taxes Domestic IncomeLossFromContinuingOperationsBeforeIncomeTaxesDomestic	57763000	USD
CY2009	us-gaap	Income Loss From Continuing Operations Before Income Taxes Foreign IncomeLossFromContinuingOperationsBeforeIncomeTaxesForeign	5742000	USD
CY2010	us-gaap	Income Loss From Continuing Operations Before Income Taxes Foreign IncomeLossFromContinuingOperationsBeforeIncomeTaxesForeign	26388000	USD
CY2011	us-gaap	Income Loss From Continuing Operations Before Income Taxes Foreign IncomeLossFromContinuingOperationsBeforeIncomeTaxesForeign	56477000	USD
CY2010	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	184477000	USD
CY2009	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	61472000	USD
CY2011	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	184678000	USD
CY2009	us-gaap	Income Loss From Continuing Operations Including Portion Attributable To Noncontrolling Interest IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest	35247000	USD
CY2011	us-gaap	Income Loss From Continuing Operations Including Portion Attributable To Noncontrolling Interest IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest	127252000	USD
CY2010	us-gaap	Income Loss From Continuing Operations Including Portion Attributable To Noncontrolling Interest IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest	127721000	USD
CY2009	us-gaap	Income Loss From Continuing Operations Per Basic Share IncomeLossFromContinuingOperationsPerBasicShare	0.71
CY2010	us-gaap	Income Loss From Continuing Operations Per Basic Share IncomeLossFromContinuingOperationsPerBasicShare	2.43
CY2011	us-gaap	Income Loss From Continuing Operations Per Basic Share IncomeLossFromContinuingOperationsPerBasicShare	2.40
CY2009	us-gaap	Income Loss From Continuing Operations Per Diluted Share IncomeLossFromContinuingOperationsPerDilutedShare	0.71
CY2011	us-gaap	Income Loss From Continuing Operations Per Diluted Share IncomeLossFromContinuingOperationsPerDilutedShare	2.39
CY2010	us-gaap	Income Loss From Continuing Operations Per Diluted Share IncomeLossFromContinuingOperationsPerDilutedShare	2.42
CY2010	us-gaap	Income Loss From Discontinued Operations Net Of Tax IncomeLossFromDiscontinuedOperationsNetOfTax	2794000	USD
CY2009	us-gaap	Income Loss From Discontinued Operations Net Of Tax IncomeLossFromDiscontinuedOperationsNetOfTax	1439000	USD
CY2011	us-gaap	Income Loss From Discontinued Operations Net Of Tax IncomeLossFromDiscontinuedOperationsNetOfTax	0	USD
CY2010Q3	us-gaap	Income Loss From Discontinued Operations Net Of Tax IncomeLossFromDiscontinuedOperationsNetOfTax	0	USD
CY2010Q1	us-gaap	Income Loss From Discontinued Operations Net Of Tax IncomeLossFromDiscontinuedOperationsNetOfTax	382000	USD
CY2010Q4	us-gaap	Income Loss From Discontinued Operations Net Of Tax IncomeLossFromDiscontinuedOperationsNetOfTax	0	USD
CY2010Q2	us-gaap	Income Loss From Discontinued Operations Net Of Tax IncomeLossFromDiscontinuedOperationsNetOfTax	2412000	USD
CY2011	us-gaap	Income Loss From Discontinued Operations Net Of Tax Per Basic Share IncomeLossFromDiscontinuedOperationsNetOfTaxPerBasicShare	0.00
CY2009	us-gaap	Income Loss From Discontinued Operations Net Of Tax Per Basic Share IncomeLossFromDiscontinuedOperationsNetOfTaxPerBasicShare	0.03
CY2010	us-gaap	Income Loss From Discontinued Operations Net Of Tax Per Basic Share IncomeLossFromDiscontinuedOperationsNetOfTaxPerBasicShare	0.05
CY2010	us-gaap	Income Loss From Discontinued Operations Net Of Tax Per Diluted Share IncomeLossFromDiscontinuedOperationsNetOfTaxPerDilutedShare	0.05
CY2011	us-gaap	Income Loss From Discontinued Operations Net Of Tax Per Diluted Share IncomeLossFromDiscontinuedOperationsNetOfTaxPerDilutedShare	0.00
CY2009	us-gaap	Income Loss From Discontinued Operations Net Of Tax Per Diluted Share IncomeLossFromDiscontinuedOperationsNetOfTaxPerDilutedShare	0.03
CY2010	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	56756000	USD
CY2011	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	57426000	USD
CY2009	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	26225000	USD
CY2011	us-gaap	Income Tax Reconciliation Foreign Income Tax Rate Differential IncomeTaxReconciliationForeignIncomeTaxRateDifferential	-10229000	USD
CY2009	us-gaap	Income Tax Reconciliation Foreign Income Tax Rate Differential IncomeTaxReconciliationForeignIncomeTaxRateDifferential	-4213000	USD
CY2010	us-gaap	Income Tax Reconciliation Foreign Income Tax Rate Differential IncomeTaxReconciliationForeignIncomeTaxRateDifferential	-6752000	USD
CY2009	us-gaap	Income Tax Reconciliation Income Tax Expense Benefit At Federal Statutory Income Tax Rate IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate	22227000	USD
CY2011	us-gaap	Income Tax Reconciliation Income Tax Expense Benefit At Federal Statutory Income Tax Rate IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate	64637000	USD
CY2010	us-gaap	Income Tax Reconciliation Income Tax Expense Benefit At Federal Statutory Income Tax Rate IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate	65925000	USD
CY2011	us-gaap	Income Tax Reconciliation Nondeductible Expense Other IncomeTaxReconciliationNondeductibleExpenseOther	416000	USD
CY2010	us-gaap	Income Tax Reconciliation Nondeductible Expense Other IncomeTaxReconciliationNondeductibleExpenseOther	0	USD
CY2009	us-gaap	Income Tax Reconciliation Nondeductible Expense Other IncomeTaxReconciliationNondeductibleExpenseOther	1921000	USD
CY2009	us-gaap	Income Tax Reconciliation Other Adjustments IncomeTaxReconciliationOtherAdjustments	1335000	USD
CY2011	us-gaap	Income Tax Reconciliation Other Adjustments IncomeTaxReconciliationOtherAdjustments	730000	USD
CY2010	us-gaap	Income Tax Reconciliation Other Adjustments IncomeTaxReconciliationOtherAdjustments	3349000	USD
CY2011	us-gaap	Income Tax Reconciliation State And Local Income Taxes IncomeTaxReconciliationStateAndLocalIncomeTaxes	5788000	USD
CY2009	us-gaap	Income Tax Reconciliation State And Local Income Taxes IncomeTaxReconciliationStateAndLocalIncomeTaxes	2067000	USD
CY2010	us-gaap	Income Tax Reconciliation State And Local Income Taxes IncomeTaxReconciliationStateAndLocalIncomeTaxes	6966000	USD
CY2011	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	48725000	USD
CY2010	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	56015000	USD
CY2009	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	14608000	USD
CY2010	us-gaap	Increase Decrease In Accounts Payable IncreaseDecreaseInAccountsPayable	38553000	USD
CY2009	us-gaap	Increase Decrease In Accounts Payable IncreaseDecreaseInAccountsPayable	5050000	USD
CY2011	us-gaap	Increase Decrease In Accounts Payable IncreaseDecreaseInAccountsPayable	-8116000	USD
CY2011	us-gaap	Increase Decrease In Accounts Receivable IncreaseDecreaseInAccountsReceivable	65210000	USD
CY2009	us-gaap	Increase Decrease In Accounts Receivable IncreaseDecreaseInAccountsReceivable	11429000	USD
CY2010	us-gaap	Increase Decrease In Accounts Receivable IncreaseDecreaseInAccountsReceivable	49411000	USD
CY2011	us-gaap	Increase Decrease In Other Operating Assets IncreaseDecreaseInOtherOperatingAssets	36761000	USD
CY2010	us-gaap	Increase Decrease In Other Operating Assets IncreaseDecreaseInOtherOperatingAssets	10550000	USD
CY2009	us-gaap	Increase Decrease In Other Operating Assets IncreaseDecreaseInOtherOperatingAssets	-1093000	USD
CY2010	us-gaap	Increase Decrease In Other Operating Liabilities IncreaseDecreaseInOtherOperatingLiabilities	18774000	USD
CY2011	us-gaap	Increase Decrease In Other Operating Liabilities IncreaseDecreaseInOtherOperatingLiabilities	-1096000	USD
CY2009	us-gaap	Increase Decrease In Other Operating Liabilities IncreaseDecreaseInOtherOperatingLiabilities	-10757000	USD
CY2011	us-gaap	Increase Decrease In Outstanding Checks Financing Activities IncreaseDecreaseInOutstandingChecksFinancingActivities	9822000	USD
CY2010	us-gaap	Increase Decrease In Outstanding Checks Financing Activities IncreaseDecreaseInOutstandingChecksFinancingActivities	-1266000	USD
CY2009	us-gaap	Increase Decrease In Outstanding Checks Financing Activities IncreaseDecreaseInOutstandingChecksFinancingActivities	4034000	USD
CY2011	us-gaap	Incremental Common Shares Attributable To Share Based Payment Arrangements IncrementalCommonSharesAttributableToShareBasedPaymentArrangements	363000	shares
CY2009	us-gaap	Incremental Common Shares Attributable To Share Based Payment Arrangements IncrementalCommonSharesAttributableToShareBasedPaymentArrangements	233000	shares
CY2010	us-gaap	Incremental Common Shares Attributable To Share Based Payment Arrangements IncrementalCommonSharesAttributableToShareBasedPaymentArrangements	310000	shares
CY2011Q4	us-gaap	Intangible Assets Net Excluding Goodwill IntangibleAssetsNetExcludingGoodwill	139644000	USD
CY2010Q4	us-gaap	Intangible Assets Net Excluding Goodwill IntangibleAssetsNetExcludingGoodwill	114400000	USD
CY2011	us-gaap	Interest Costs Capitalized InterestCostsCapitalized	500000	USD
CY2009	us-gaap	Interest Costs Capitalized InterestCostsCapitalized	200000	USD
CY2010	us-gaap	Interest Costs Capitalized InterestCostsCapitalized	500000	USD
CY2009	us-gaap	Interest Paid Net InterestPaidNet	7833000	USD
CY2011	us-gaap	Interest Paid Net InterestPaidNet	31201000	USD
CY2010	us-gaap	Interest Paid Net InterestPaidNet	26985000	USD
CY2011Q4	us-gaap	Interest Payable Current InterestPayableCurrent	15434000	USD
CY2010Q4	us-gaap	Interest Payable Current InterestPayableCurrent	7826000	USD
CY2011	us-gaap	Investment Income Interest InvestmentIncomeInterest	798	USD
CY2010	us-gaap	Investment Income Interest InvestmentIncomeInterest	874	USD
CY2009	us-gaap	Investment Income Interest InvestmentIncomeInterest	825	USD
CY2011Q4	us-gaap	Investments In Affiliates Subsidiaries Associates And Joint Ventures InvestmentsInAffiliatesSubsidiariesAssociatesAndJointVentures	0	USD
CY2010Q4	us-gaap	Investments In Affiliates Subsidiaries Associates And Joint Ventures InvestmentsInAffiliatesSubsidiariesAssociatesAndJointVentures	0	USD
CY2011Q4	us-gaap	Land Land	37185000	USD
CY2010Q4	us-gaap	Land Land	31654000	USD
CY2010Q4	us-gaap	Letters Of Credit Outstanding Amount LettersOfCreditOutstandingAmount	86100000	USD
CY2011Q4	us-gaap	Letters Of Credit Outstanding Amount LettersOfCreditOutstandingAmount	82600000	USD
CY2011Q4	us-gaap	Liabilities Liabilities	1184816000	USD
CY2010Q4	us-gaap	Liabilities Liabilities	821648000	USD
CY2010Q4	us-gaap	Liabilities And Stockholders Equity LiabilitiesAndStockholdersEquity	1602475000	USD
CY2011Q4	us-gaap	Liabilities And Stockholders Equity LiabilitiesAndStockholdersEquity	2085803000	USD
CY2011Q4	us-gaap	Liabilities Current LiabilitiesCurrent	381742000	USD
CY2010Q4	us-gaap	Liabilities Current LiabilitiesCurrent	306284000	USD
CY2011Q4	us-gaap	Liabilities Noncurrent LiabilitiesNoncurrent	803074000	USD
CY2010Q4	us-gaap	Liabilities Noncurrent LiabilitiesNoncurrent	515364000	USD
CY2011Q4	us-gaap	Line Of Credit Facility Amount Outstanding LineOfCreditFacilityAmountOutstanding		USD
CY2010Q4	us-gaap	Line Of Credit Facility Amount Outstanding LineOfCreditFacilityAmountOutstanding		USD
CY2011Q3	us-gaap	Line Of Credit Facility Maximum Borrowing Capacity LineOfCreditFacilityMaximumBorrowingCapacity	250000000	USD
CY2011Q4	us-gaap	Long Term Debt Noncurrent LongTermDebtNoncurrent	524203000	USD
CY2010	us-gaap	Operating Leases Rent Expense Net OperatingLeasesRentExpenseNet	71700000	USD
CY2010Q4	us-gaap	Long Term Debt Noncurrent LongTermDebtNoncurrent	264007000	USD
CY2010Q4	us-gaap	Long Term Investments LongTermInvestments	5437000	USD
CY2011Q4	us-gaap	Long Term Investments LongTermInvestments	4245000	USD
CY2011Q4	us-gaap	Loss Contingency Accrual At Carrying Value LossContingencyAccrualAtCarryingValue	30300000	USD
CY2011	us-gaap	Operating Leases Rent Expense Net OperatingLeasesRentExpenseNet	86700000	USD
CY2010Q4	us-gaap	Loss Contingency Accrual At Carrying Value LossContingencyAccrualAtCarryingValue	29700000	USD
CY2011Q4	us-gaap	Machinery And Equipment Gross MachineryAndEquipmentGross	729154000	USD
CY2010Q4	us-gaap	Machinery And Equipment Gross MachineryAndEquipmentGross	537937000	USD
CY2011Q4	us-gaap	Marketable Securities Current MarketableSecuritiesCurrent	111000	USD
CY2010Q4	us-gaap	Marketable Securities Current MarketableSecuritiesCurrent	3174000	USD
CY2009	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	3584000	USD
CY2010	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	-32230000	USD
CY2011	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	258740000	USD
CY2010	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-125687000	USD
CY2011	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-480181000	USD
CY2009	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-118391000	USD
CY2011	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	179531000	USD
CY2009	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	93270000	USD
CY2010	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	224108000	USD
CY2009	us-gaap	Noncash Or Part Noncash Acquisition Value Of Assets Acquired1 NoncashOrPartNoncashAcquisitionValueOfAssetsAcquired1	908000	USD
CY2010	us-gaap	Noncash Or Part Noncash Acquisition Value Of Assets Acquired1 NoncashOrPartNoncashAcquisitionValueOfAssetsAcquired1	7844000	USD
CY2011	us-gaap	Noncash Or Part Noncash Acquisition Value Of Assets Acquired1 NoncashOrPartNoncashAcquisitionValueOfAssetsAcquired1	18682000	USD
CY2011	us-gaap	Operating Income Loss OperatingIncomeLoss	217665000	USD
CY2009	us-gaap	Operating Income Loss OperatingIncomeLoss	82065000	USD
CY2010	us-gaap	Operating Income Loss OperatingIncomeLoss	211912000	USD
CY2010Q2	us-gaap	Operating Income Loss OperatingIncomeLoss	71923000	USD
CY2010Q4	us-gaap	Operating Income Loss OperatingIncomeLoss	42998000	USD
CY2010Q1	us-gaap	Operating Income Loss OperatingIncomeLoss	23619000	USD
CY2010Q3	us-gaap	Operating Income Loss OperatingIncomeLoss	73372000	USD
CY2011Q4	us-gaap	Operating Income Loss OperatingIncomeLoss	59247000	USD
CY2011Q1	us-gaap	Operating Income Loss OperatingIncomeLoss	39742000	USD
CY2011Q3	us-gaap	Operating Income Loss OperatingIncomeLoss	66792000	USD
CY2011Q2	us-gaap	Operating Income Loss OperatingIncomeLoss	51884000	USD
CY2011Q4	us-gaap	Operating Leases Future Minimum Payments Due OperatingLeasesFutureMinimumPaymentsDue	127608000	USD
CY2011Q4	us-gaap	Operating Leases Future Minimum Payments Due Current OperatingLeasesFutureMinimumPaymentsDueCurrent	29123000	USD
CY2011Q4	us-gaap	Operating Leases Future Minimum Payments Due In Five Years OperatingLeasesFutureMinimumPaymentsDueInFiveYears	11134000	USD
CY2011Q4	us-gaap	Operating Leases Future Minimum Payments Due In Four Years OperatingLeasesFutureMinimumPaymentsDueInFourYears	14156000	USD
CY2011Q4	us-gaap	Operating Leases Future Minimum Payments Due In Three Years OperatingLeasesFutureMinimumPaymentsDueInThreeYears	17803000	USD
CY2011Q4	us-gaap	Operating Leases Future Minimum Payments Due In Two Years OperatingLeasesFutureMinimumPaymentsDueInTwoYears	24156000	USD
CY2011Q4	us-gaap	Operating Leases Future Minimum Payments Due Thereafter OperatingLeasesFutureMinimumPaymentsDueThereafter	31236000	USD
CY2009	us-gaap	Operating Leases Rent Expense Net OperatingLeasesRentExpenseNet	53600000	USD
CY2010Q4	us-gaap	Other Accrued Liabilities Current OtherAccruedLiabilitiesCurrent	22280000	USD
CY2011Q4	us-gaap	Other Accrued Liabilities Current OtherAccruedLiabilitiesCurrent	37499000	USD
CY2011Q4	us-gaap	Other Assets Current OtherAssetsCurrent	631145000	USD
CY2010Q4	us-gaap	Other Assets Current OtherAssetsCurrent	450327000	USD
CY2010Q4	us-gaap	Other Assets Noncurrent OtherAssetsNoncurrent	6687000	USD
CY2011Q4	us-gaap	Other Assets Noncurrent OtherAssetsNoncurrent	10100000	USD
CY2009	us-gaap	Other Comprehensive Income Defined Benefit Plans Adjustment Net Of Tax Period Increase Decrease OtherComprehensiveIncomeDefinedBenefitPlansAdjustmentNetOfTaxPeriodIncreaseDecrease	532000	USD
CY2011	us-gaap	Other Comprehensive Income Defined Benefit Plans Adjustment Net Of Tax Period Increase Decrease OtherComprehensiveIncomeDefinedBenefitPlansAdjustmentNetOfTaxPeriodIncreaseDecrease	-335000	USD
CY2010	us-gaap	Other Comprehensive Income Defined Benefit Plans Adjustment Net Of Tax Period Increase Decrease OtherComprehensiveIncomeDefinedBenefitPlansAdjustmentNetOfTaxPeriodIncreaseDecrease	-55000	USD
CY2010	us-gaap	Other Comprehensive Income Defined Benefit Plans Tax OtherComprehensiveIncomeDefinedBenefitPlansTax	24000	USD
CY2011	us-gaap	Other Comprehensive Income Defined Benefit Plans Tax OtherComprehensiveIncomeDefinedBenefitPlansTax	58000	USD
CY2009	us-gaap	Other Comprehensive Income Defined Benefit Plans Tax OtherComprehensiveIncomeDefinedBenefitPlansTax	254000	USD
CY2009	us-gaap	Other Comprehensive Income Foreign Currency Transaction And Translation Gain Loss Arising During Period Net Of Tax OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationGainLossArisingDuringPeriodNetOfTax	25259000	USD
CY2010	us-gaap	Other Comprehensive Income Foreign Currency Transaction And Translation Gain Loss Arising During Period Net Of Tax OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationGainLossArisingDuringPeriodNetOfTax	24536000	USD
CY2011	us-gaap	Other Comprehensive Income Foreign Currency Transaction And Translation Gain Loss Arising During Period Net Of Tax OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationGainLossArisingDuringPeriodNetOfTax	-18264000	USD
CY2011	us-gaap	Other Comprehensive Income Reclassification Adjustment For Sale Of Securities Included In Net Income Tax OtherComprehensiveIncomeReclassificationAdjustmentForSaleOfSecuritiesIncludedInNetIncomeTax	379000	USD
CY2009	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Net Of Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax	1726000	USD
CY2010	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Net Of Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax	-551000	USD
CY2011	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Net Of Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax	686000	USD
CY2009	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodTax	441000	USD
CY2011	us-gaap	Other Increase Decrease In Environmental Liabilities OtherIncreaseDecreaseInEnvironmentalLiabilities	-2840000	USD
CY2010	us-gaap	Other Increase Decrease In Environmental Liabilities OtherIncreaseDecreaseInEnvironmentalLiabilities	-8328000	USD
CY2009	us-gaap	Other Increase Decrease In Environmental Liabilities OtherIncreaseDecreaseInEnvironmentalLiabilities	-4657000	USD
CY2009	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	259000	USD
CY2011	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	6402000	USD
CY2010	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	2795000	USD
CY2010Q2	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	2708000	USD
CY2010Q1	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	446000	USD
CY2010Q4	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	310000	USD
CY2010Q3	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	-669000	USD
CY2011Q2	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	2868000	USD
CY2011Q4	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	471000	USD
CY2011Q3	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	164000	USD
CY2011Q1	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	2899000	USD
CY2009	us-gaap	Payments For Environmental Liabilities PaymentsForEnvironmentalLiabilities	8617000	USD
CY2011	us-gaap	Payments For Environmental Liabilities PaymentsForEnvironmentalLiabilities	11319000	USD
CY2010	us-gaap	Payments For Environmental Liabilities PaymentsForEnvironmentalLiabilities	10236000	USD
CY2010	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	399000	USD
CY2011	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	4061000	USD
CY2009	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	415000	USD
CY2010	us-gaap	Payments Of Financing Costs PaymentsOfFinancingCosts	353000	USD
CY2009	us-gaap	Payments Of Financing Costs PaymentsOfFinancingCosts	10473000	USD
CY2011	us-gaap	Payments Of Financing Costs PaymentsOfFinancingCosts	8463000	USD
CY2009	us-gaap	Payments To Acquire Available For Sale Securities PaymentsToAcquireAvailableForSaleSecurities	0	USD
CY2010	us-gaap	Payments To Acquire Available For Sale Securities PaymentsToAcquireAvailableForSaleSecurities	2127000	USD
CY2011	us-gaap	Payments To Acquire Available For Sale Securities PaymentsToAcquireAvailableForSaleSecurities	0	USD
CY2010	us-gaap	Payments To Acquire Businesses Net Of Cash Acquired PaymentsToAcquireBusinessesNetOfCashAcquired	14646000	USD
CY2009	us-gaap	Payments To Acquire Businesses Net Of Cash Acquired PaymentsToAcquireBusinessesNetOfCashAcquired	54476000	USD
CY2011	us-gaap	Payments To Acquire Businesses Net Of Cash Acquired PaymentsToAcquireBusinessesNetOfCashAcquired	336960000	USD
CY2011	us-gaap	Payments To Acquire Intangible Assets PaymentsToAcquireIntangibleAssets	2927000	USD
CY2010	us-gaap	Payments To Acquire Intangible Assets PaymentsToAcquireIntangibleAssets	4204000	USD
CY2009	us-gaap	Payments To Acquire Intangible Assets PaymentsToAcquireIntangibleAssets	2228000	USD
CY2011	us-gaap	Payments To Acquire Interest In Subsidiaries And Affiliates PaymentsToAcquireInterestInSubsidiariesAndAffiliates	0	USD
CY2010	us-gaap	Payments To Acquire Interest In Subsidiaries And Affiliates PaymentsToAcquireInterestInSubsidiariesAndAffiliates	0	USD
CY2009	us-gaap	Payments To Acquire Interest In Subsidiaries And Affiliates PaymentsToAcquireInterestInSubsidiariesAndAffiliates	0	USD
CY2011	us-gaap	Payments To Acquire Investments PaymentsToAcquireInvestments	0	USD
CY2010	us-gaap	Payments To Acquire Investments PaymentsToAcquireInvestments	10506000	USD
CY2009	us-gaap	Payments To Acquire Investments PaymentsToAcquireInvestments	0	USD
CY2011	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	148513000	USD
CY2010	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	116450000	USD
CY2009	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	62244000	USD
CY2011	us-gaap	Proceeds From Issuance Of Common Stock ProceedsFromIssuanceOfCommonStock	0	USD
CY2010	us-gaap	Proceeds From Issuance Of Common Stock ProceedsFromIssuanceOfCommonStock	1015000	USD
CY2009	us-gaap	Proceeds From Issuance Of Common Stock ProceedsFromIssuanceOfCommonStock	0	USD
CY2010	us-gaap	Proceeds From Issuance Of Secured Debt ProceedsFromIssuanceOfSecuredDebt	0	USD
CY2009	us-gaap	Proceeds From Issuance Of Secured Debt ProceedsFromIssuanceOfSecuredDebt	292107000	USD
CY2011	us-gaap	Proceeds From Issuance Of Secured Debt ProceedsFromIssuanceOfSecuredDebt	261250000	USD
CY2011	us-gaap	Proceeds From Issuance Of Shares Under Incentive And Share Based Compensation Plans ProceedsFromIssuanceOfSharesUnderIncentiveAndShareBasedCompensationPlans	3516000	USD
CY2009	us-gaap	Proceeds From Issuance Of Shares Under Incentive And Share Based Compensation Plans ProceedsFromIssuanceOfSharesUnderIncentiveAndShareBasedCompensationPlans	2315000	USD
CY2010	us-gaap	Proceeds From Issuance Of Shares Under Incentive And Share Based Compensation Plans ProceedsFromIssuanceOfSharesUnderIncentiveAndShareBasedCompensationPlans	2449000	USD
CY2011	us-gaap	Proceeds From Sale And Maturity Of Available For Sale Securities ProceedsFromSaleAndMaturityOfAvailableForSaleSecurities	425000	USD
CY2009	us-gaap	Proceeds From Sale And Maturity Of Available For Sale Securities ProceedsFromSaleAndMaturityOfAvailableForSaleSecurities	105000	USD
CY2010	us-gaap	Proceeds From Sale And Maturity Of Available For Sale Securities ProceedsFromSaleAndMaturityOfAvailableForSaleSecurities	3557000	USD
CY2009	us-gaap	Proceeds From Sale Of Longterm Investments ProceedsFromSaleOfLongtermInvestments	0	USD
CY2010	us-gaap	Proceeds From Sale Of Longterm Investments ProceedsFromSaleOfLongtermInvestments	1300000	USD
CY2011	us-gaap	Proceeds From Sale Of Longterm Investments ProceedsFromSaleOfLongtermInvestments	1000000	USD
CY2010	us-gaap	Proceeds From Stock Options Exercised ProceedsFromStockOptionsExercised	862000	USD
CY2009	us-gaap	Proceeds From Stock Options Exercised ProceedsFromStockOptionsExercised	430000	USD
CY2011	us-gaap	Proceeds From Stock Options Exercised ProceedsFromStockOptionsExercised	1350000	USD
CY2010	us-gaap	Profit Loss ProfitLoss	130515000	USD
CY2009	us-gaap	Profit Loss ProfitLoss	36686000	USD
CY2011	us-gaap	Profit Loss ProfitLoss	127252000	USD
CY2010Q4	us-gaap	Revenues Revenues	417058000	USD
CY2010Q2	us-gaap	Revenues Revenues	471639000	USD
CY2010Q1	us-gaap	Revenues Revenues	354896000	USD
CY2010Q3	us-gaap	Revenues Revenues	487651000	USD
CY2011Q2	us-gaap	Revenues Revenues	447235000	USD
CY2010Q2	us-gaap	Profit Loss ProfitLoss	57929000	USD
CY2010Q1	us-gaap	Profit Loss ProfitLoss	10430000	USD
CY2010Q4	us-gaap	Profit Loss ProfitLoss	23329000	USD
CY2010Q3	us-gaap	Profit Loss ProfitLoss	38827000	USD
CY2011Q4	us-gaap	Profit Loss ProfitLoss	38233000	USD
CY2011Q2	us-gaap	Profit Loss ProfitLoss	29156000	USD
CY2011Q1	us-gaap	Profit Loss ProfitLoss	22730000	USD
CY2011Q3	us-gaap	Profit Loss ProfitLoss	37133000	USD
CY2011Q4	us-gaap	Property Plant And Equipment Gross PropertyPlantAndEquipmentGross	1387282000	USD
CY2010Q4	us-gaap	Property Plant And Equipment Gross PropertyPlantAndEquipmentGross	1034049000	USD
CY2010Q4	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	655394000	USD
CY2011Q4	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	903947000	USD
CY2010Q4	us-gaap	Property Plant And Equipment Other PropertyPlantAndEquipmentOther	54519000	USD
CY2011Q4	us-gaap	Property Plant And Equipment Other PropertyPlantAndEquipmentOther	58466000	USD
CY2011	us-gaap	Property Plant And Equipment Useful Life Average PropertyPlantAndEquipmentUsefulLifeAverage	7.8
CY2011	us-gaap	Provision For Doubtful Accounts ProvisionForDoubtfulAccounts	759000	USD
CY2010	us-gaap	Provision For Doubtful Accounts ProvisionForDoubtfulAccounts	1043000	USD
CY2009	us-gaap	Provision For Doubtful Accounts ProvisionForDoubtfulAccounts	1006000	USD
CY2011	us-gaap	Realized Investment Gains Losses RealizedInvestmentGainsLosses	-1493000	USD
CY2010	us-gaap	Repayments Of Long Term Debt RepaymentsOfLongTermDebt	0	USD
CY2009	us-gaap	Repayments Of Long Term Debt RepaymentsOfLongTermDebt	230745000	USD
CY2011	us-gaap	Repayments Of Long Term Debt RepaymentsOfLongTermDebt	0	USD
CY2010Q4	us-gaap	Retained Earnings Accumulated Deficit RetainedEarningsAccumulatedDeficit	244400000	USD
CY2011Q4	us-gaap	Retained Earnings Accumulated Deficit RetainedEarningsAccumulatedDeficit	371652000	USD
CY2011	us-gaap	Revenue Recognition Multiple Element Arrangements RevenueRecognitionMultipleElementArrangements	<div style="font-family:Times New Roman;font-size:10pt;"><div style="line-height:120%;padding-bottom:10px;padding-top:10px;text-indent:32px;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">n.</font></div><div style="line-height:120%;padding-bottom:10px;padding-top:10px;text-indent:26px;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;font-style:italic;">Recent Accounting Pronouncements</font></div><div style="line-height:120%;padding-bottom:10px;padding-top:10px;text-indent:32px;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">From time to time, new accounting pronouncements are issued by the Financial Accounting Standards Board and are adopted by the Company as of the specified effective dates. Unless otherwise discussed below, management believes that the impact of recently issued accounting pronouncements will not have a material impact on the Company's financial position, results of operations and cash flows, or do not apply to the Company's operations.</font></div><div style="line-height:120%;padding-bottom:10px;padding-top:10px;text-indent:32px;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">In 2009, the FASB issued Accounting Standards Update (ASU) 2009-13, Revenue Recognition (Topic 605)—Multiple-Deliverable Revenue Arrangements, or ASU 2009-13 which provides additional guidance on the recognition of revenue from multiple element arrangements. ASU 2009-13 states that if vendor specific objective evidence or third party evidence for deliverables in an arrangement cannot be determined, companies are required to develop a best estimate of the selling price for separate deliverables and allocate arrangement consideration using the relative selling price method. This guidance became effective for fiscal years beginning after June 15, 2010 and can be applied prospectively to new or materially modified arrangements after the effective date or retrospectively. The Company adopted ASU 2009-13 prospectively as of January 1, 2011 and although the adoption did not materially impact its financial condition, results of operations, or cash flow, this guidance may impact the Company’s determination of the separation of deliverables for future arrangemen</font></div></div>
CY2011	us-gaap	Revenues Revenues	1984136000	USD
CY2009	us-gaap	Revenues Revenues	1074220000	USD
CY2010	us-gaap	Revenues Revenues	1731244000	USD
CY2011Q4	us-gaap	Revenues Revenues	545886000	USD
CY2011Q1	us-gaap	Revenues Revenues	434962000	USD
CY2011Q3	us-gaap	Revenues Revenues	556053000	USD
CY2011	us-gaap	Revenues From External Customers RevenuesFromExternalCustomers	1984136000	USD
CY2010	us-gaap	Revenues From External Customers RevenuesFromExternalCustomers	1731244000	USD
CY2009	us-gaap	Revenues From External Customers RevenuesFromExternalCustomers	1074220000	USD
CY2011	us-gaap	Revenues From Transactions With Other Operating Segments Of Same Entity RevenuesFromTransactionsWithOtherOperatingSegmentsOfSameEntity		USD
CY2010	us-gaap	Revenues From Transactions With Other Operating Segments Of Same Entity RevenuesFromTransactionsWithOtherOperatingSegmentsOfSameEntity		USD
CY2009	us-gaap	Revenues From Transactions With Other Operating Segments Of Same Entity RevenuesFromTransactionsWithOtherOperatingSegmentsOfSameEntity		USD
CY2011Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercises In Period Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageExercisePrice	-18.85
CY2011	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Forfeitures And Expirations In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresAndExpirationsInPeriod	5000000	shares
CY2011	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Forfeitures And Expirations In Period Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresAndExpirationsInPeriodWeightedAverageExercisePrice	-6.49
CY2010Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Intrinsic Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue	6165000	USD
CY2011Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Intrinsic Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue	7468000	USD
CY2010Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber	221148000	shares
CY2010	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercises In Period Total Intrinsic Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodTotalIntrinsicValue	2800000	USD
CY2011	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercises In Period Total Intrinsic Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodTotalIntrinsicValue	2100000	USD
CY2009	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercises In Period Total Intrinsic Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodTotalIntrinsicValue	1200000	USD
CY2011Q4	us-gaap	Self Insurance Reserve SelfInsuranceReserve	12867000	USD
CY2009	us-gaap	Selling General And Administrative Expense SellingGeneralAndAdministrativeExpense	163157000	USD
CY2010	us-gaap	Selling General And Administrative Expense SellingGeneralAndAdministrativeExpense	205812000	USD
CY2011	us-gaap	Selling General And Administrative Expense SellingGeneralAndAdministrativeExpense	254137000	USD
CY2010	us-gaap	Share Based Compensation ShareBasedCompensation	7219000	USD
CY2009	us-gaap	Share Based Compensation ShareBasedCompensation	968000	USD
CY2011	us-gaap	Share Based Compensation ShareBasedCompensation	8164000	USD
CY2011	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Award Expiration Dating ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardExpirationDating	P10Y
CY2011	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Award Vesting Period ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingPeriod	P5Y
CY2010	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Compensation Cost ShareBasedCompensationArrangementByShareBasedPaymentAwardCompensationCost	7200000	USD
CY2009	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Compensation Cost ShareBasedCompensationArrangementByShareBasedPaymentAwardCompensationCost	1000000	USD
CY2011	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Compensation Cost ShareBasedCompensationArrangementByShareBasedPaymentAwardCompensationCost	8200000	USD
CY2011Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber	144698000	shares
CY2010Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice	14.16
CY2011Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice	12.12
CY2011Q4	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Outstanding Weighted Average Remaining Contractual Term1 SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsOutstandingWeightedAverageRemainingContractualTerm1	2.32	Years
CY2010Q4	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Outstanding Weighted Average Remaining Contractual Term1 SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsOutstandingWeightedAverageRemainingContractualTerm1	2.70	Years
CY2011	us-gaap	Stock Issued During Period Shares Stock Options Exercised StockIssuedDuringPeriodSharesStockOptionsExercised	71450000	shares
CY2010	us-gaap	Stock Issued During Period Value Acquisitions StockIssuedDuringPeriodValueAcquisitions	1015000	USD
CY2009	us-gaap	Stock Issued During Period Value Employee Stock Purchase Plan StockIssuedDuringPeriodValueEmployeeStockPurchasePlan	2315000	USD
CY2010	us-gaap	Stock Issued During Period Value Employee Stock Purchase Plan StockIssuedDuringPeriodValueEmployeeStockPurchasePlan	2449000	USD
CY2011	us-gaap	Stock Issued During Period Value Employee Stock Purchase Plan StockIssuedDuringPeriodValueEmployeeStockPurchasePlan	3516000	USD
CY2009	us-gaap	Stock Issued During Period Value New Issues StockIssuedDuringPeriodValueNewIssues	118398000	USD
CY2010	us-gaap	Stock Issued During Period Value Restricted Stock Award Net Of Forfeitures StockIssuedDuringPeriodValueRestrictedStockAwardNetOfForfeitures	-399000	USD
CY2011	us-gaap	Stock Issued During Period Value Restricted Stock Award Net Of Forfeitures StockIssuedDuringPeriodValueRestrictedStockAwardNetOfForfeitures	-4061000	USD
CY2009	us-gaap	Stock Issued During Period Value Share Based Compensation StockIssuedDuringPeriodValueShareBasedCompensation	-415000	USD
CY2010	us-gaap	Stock Issued During Period Value Share Based Compensation StockIssuedDuringPeriodValueShareBasedCompensation	6518000	USD
CY2011	us-gaap	Stock Issued During Period Value Share Based Compensation StockIssuedDuringPeriodValueShareBasedCompensation	7854000	USD
CY2009	us-gaap	Stock Issued During Period Value Stock Options Exercised StockIssuedDuringPeriodValueStockOptionsExercised	430000	USD
CY2010	us-gaap	Stock Issued During Period Value Stock Options Exercised StockIssuedDuringPeriodValueStockOptionsExercised	862000	USD
CY2011	us-gaap	Stock Issued During Period Value Stock Options Exercised StockIssuedDuringPeriodValueStockOptionsExercised	1350000	USD
CY2011Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	900987000	USD
CY2010Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	780827000	USD
CY2009Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	613825000	USD
CY2008Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	429045000	USD
CY2010Q4	us-gaap	Supplies Supplies	44546000	USD
CY2011Q4	us-gaap	Supplies Supplies	56242000	USD
CY2011	us-gaap	Tax Benefit From Stock Options Exercised TaxBenefitFromStockOptionsExercised	3347000	USD
CY2009	us-gaap	Tax Benefit From Stock Options Exercised TaxBenefitFromStockOptionsExercised	474000	USD
CY2010	us-gaap	Tax Benefit From Stock Options Exercised TaxBenefitFromStockOptionsExercised	1739000	USD
CY2011Q4	us-gaap	Taxes Payable Current TaxesPayableCurrent	14863000	USD
CY2010Q4	us-gaap	Taxes Payable Current TaxesPayableCurrent	19529000	USD
CY2010Q4	us-gaap	Treasury Stock Value TreasuryStockValue	2467000	USD
CY2011Q4	us-gaap	Treasury Stock Value TreasuryStockValue	0	USD
CY2011Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	36217000	USD
CY2010Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	39709000	USD
CY2008Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	46480000	USD
CY2009Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	48178000	USD
CY2010	us-gaap	Unrecognized Tax Benefits Decreases Resulting From Current Period Tax Positions UnrecognizedTaxBenefitsDecreasesResultingFromCurrentPeriodTaxPositions	-498000	USD
CY2009	us-gaap	Unrecognized Tax Benefits Decreases Resulting From Current Period Tax Positions UnrecognizedTaxBenefitsDecreasesResultingFromCurrentPeriodTaxPositions	0	USD
CY2011	us-gaap	Unrecognized Tax Benefits Decreases Resulting From Current Period Tax Positions UnrecognizedTaxBenefitsDecreasesResultingFromCurrentPeriodTaxPositions	302000	USD
CY2011	us-gaap	Unrecognized Tax Benefits Decreases Resulting From Settlements With Taxing Authorities UnrecognizedTaxBenefitsDecreasesResultingFromSettlementsWithTaxingAuthorities	75000	USD
CY2009	us-gaap	Unrecognized Tax Benefits Decreases Resulting From Settlements With Taxing Authorities UnrecognizedTaxBenefitsDecreasesResultingFromSettlementsWithTaxingAuthorities	0	USD
CY2010	us-gaap	Unrecognized Tax Benefits Decreases Resulting From Settlements With Taxing Authorities UnrecognizedTaxBenefitsDecreasesResultingFromSettlementsWithTaxingAuthorities	0	USD
CY2011Q4	us-gaap	Unrecognized Tax Benefits Income Tax Penalties Accrued UnrecognizedTaxBenefitsIncomeTaxPenaltiesAccrued	6600000	USD
CY2011Q4	us-gaap	Unrecognized Tax Benefits Income Tax Penalties And Interest Accrued UnrecognizedTaxBenefitsIncomeTaxPenaltiesAndInterestAccrued	26800000	USD
CY2010Q4	us-gaap	Unrecognized Tax Benefits Income Tax Penalties And Interest Accrued UnrecognizedTaxBenefitsIncomeTaxPenaltiesAndInterestAccrued	26200000	USD
CY2011	us-gaap	Unrecognized Tax Benefits Income Tax Penalties And Interest Expense UnrecognizedTaxBenefitsIncomeTaxPenaltiesAndInterestExpense	3400000	USD
CY2010	us-gaap	Unrecognized Tax Benefits Income Tax Penalties And Interest Expense UnrecognizedTaxBenefitsIncomeTaxPenaltiesAndInterestExpense	4100000	USD
CY2009	us-gaap	Unrecognized Tax Benefits Income Tax Penalties And Interest Expense UnrecognizedTaxBenefitsIncomeTaxPenaltiesAndInterestExpense	4700000	USD
CY2010	us-gaap	Unrecognized Tax Benefits Increases Resulting From Current Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromCurrentPeriodTaxPositions	0	USD
CY2011	us-gaap	Unrecognized Tax Benefits Increases Resulting From Current Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromCurrentPeriodTaxPositions	376000	USD
CY2009	us-gaap	Unrecognized Tax Benefits Increases Resulting From Current Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromCurrentPeriodTaxPositions	0	USD
CY2010	us-gaap	Unrecognized Tax Benefits Increases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromPriorPeriodTaxPositions	0	USD
CY2009	us-gaap	Unrecognized Tax Benefits Increases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromPriorPeriodTaxPositions	124000	USD
CY2011	us-gaap	Unrecognized Tax Benefits Increases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromPriorPeriodTaxPositions	0	USD
CY2011Q4	us-gaap	Unrecognized Tax Benefits Interest On Income Taxes Accrued UnrecognizedTaxBenefitsInterestOnIncomeTaxesAccrued	20200000	USD
CY2009	us-gaap	Unrecognized Tax Benefits Reductions Resulting From Lapse Of Applicable Statute Of Limitations UnrecognizedTaxBenefitsReductionsResultingFromLapseOfApplicableStatuteOfLimitations	0	USD
CY2010	us-gaap	Unrecognized Tax Benefits Reductions Resulting From Lapse Of Applicable Statute Of Limitations UnrecognizedTaxBenefitsReductionsResultingFromLapseOfApplicableStatuteOfLimitations	8929000	USD
CY2011	us-gaap	Unrecognized Tax Benefits Reductions Resulting From Lapse Of Applicable Statute Of Limitations UnrecognizedTaxBenefitsReductionsResultingFromLapseOfApplicableStatuteOfLimitations	3436000	USD
CY2011	us-gaap	Use Of Estimates UseOfEstimates	<div style="font-family:Times New Roman;font-size:10pt;"><div style="line-height:120%;padding-bottom:10px;padding-top:10px;text-indent:26px;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;font-style:italic;">Use of Estimates</font></div><div style="line-height:120%;padding-bottom:10px;padding-top:10px;text-indent:32px;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">The preparation of consolidated financial statements in conformity with accounting principles generally accepted in the United States of America requires management to make estimates and assumptions, which are evaluated on an ongoing basis, that affect the amounts reported in the Company's consolidated financial statements and accompanying notes. Management bases its estimates on historical experience and on various other assumptions it believes to be reasonable at the time under the circumstances, the results of which form the basis for making judgments about the carrying values of assets and liabilities and disclosure, if any, of contingent assets and liabilities and reported amounts of revenues and expenses. Actual results could differ from those estimates and judgments.</font></div></div>
CY2010Q4	us-gaap	Valuation Allowance Amount ValuationAllowanceAmount	12900000	USD
CY2011Q4	us-gaap	Valuation Allowance Amount ValuationAllowanceAmount	11500000	USD
CY2011	us-gaap	Valuation Allowance Deferred Tax Asset Change In Amount ValuationAllowanceDeferredTaxAssetChangeInAmount	1100000	USD
CY2011	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	53324000	shares
CY2010	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	52932000	shares
CY2009	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	49866000	shares
CY2010	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	52622000	shares
CY2009	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	49633000	shares
CY2011	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	52961000	shares
CY2010	clh	Accretion Of Environmental Liabilities AccretionOfEnvironmentalLiabilities	10307000	USD
CY2011	clh	Accretion Of Environmental Liabilities AccretionOfEnvironmentalLiabilities	9680000	USD
CY2009	clh	Accretion Of Environmental Liabilities AccretionOfEnvironmentalLiabilities	10617000	USD
CY2011	clh	Accrual For Environmental Loss Contingencies Increase Decrease For Currency Translation And Other AccrualForEnvironmentalLossContingenciesIncreaseDecreaseForCurrencyTranslationAndOther	-466000	USD
CY2010	clh	Accrual For Environmental Loss Contingencies Increase Decrease For Currency Translation And Other AccrualForEnvironmentalLossContingenciesIncreaseDecreaseForCurrencyTranslationAndOther	859000	USD
CY2011	clh	Accrual For Environmental Loss Contingencies Percent Of Total AccrualForEnvironmentalLossContingenciesPercentOfTotal	1.000
CY2011Q4	clh	Accrual For Environmental Loss Contingencies Threshold For Discloure AccrualForEnvironmentalLossContingenciesThresholdForDiscloure	0.05
CY2010Q4	clh	Accrued Capping Closure Post Closure And Remedial Liabilities Current AccruedCappingClosurePostClosureAndRemedialLiabilitiesCurrent	14518000	USD
CY2011Q4	clh	Accrued Capping Closure Post Closure And Remedial Liabilities Current AccruedCappingClosurePostClosureAndRemedialLiabilitiesCurrent	15059000	USD
CY2011	clh	Accrued Working Capital Adjustment AccruedWorkingCapitalAdjustment	3694000	USD
CY2010	clh	Accrued Working Capital Adjustment AccruedWorkingCapitalAdjustment	0	USD
CY2009	clh	Accrued Working Capital Adjustment AccruedWorkingCapitalAdjustment	0	USD
CY2009Q4	clh	Accumulated Other Comprehensive Income Long Term Investments Tax AccumulatedOtherComprehensiveIncomeLongTermInvestmentsTax	-109000	USD
CY2011Q4	clh	Accumulated Other Comprehensive Income Long Term Investments Tax AccumulatedOtherComprehensiveIncomeLongTermInvestmentsTax	155000	USD
CY2010Q4	clh	Accumulated Other Comprehensive Income Long Term Investments Tax AccumulatedOtherComprehensiveIncomeLongTermInvestmentsTax	-50000	USD
CY2011Q4	clh	Accumulated Other Comprehensive Unrealized Gain Loss AccumulatedOtherComprehensiveUnrealizedGainLoss	-348000	USD
CY2010Q4	clh	Accumulated Other Comprehensive Unrealized Gain Loss AccumulatedOtherComprehensiveUnrealizedGainLoss	459000	USD
CY2009Q4	clh	Accumulated Other Comprehensive Unrealized Gain Loss AccumulatedOtherComprehensiveUnrealizedGainLoss	1010000	USD
CY2011	clh	Addition Of Highly Probable Airspace AdditionOfHighlyProbableAirspace	102000	yd3
CY2009	clh	Addition Of Highly Probable Airspace AdditionOfHighlyProbableAirspace	-1635000	yd3
CY2010	clh	Addition Of Highly Probable Airspace AdditionOfHighlyProbableAirspace	3905000	yd3
CY2010Q4	clh	Expense Recognized In Other Comprehensive Income ExpenseRecognizedInOtherComprehensiveIncome	79000	USD
CY2011	clh	Expiration Of Various State Statute Of Limitation ExpirationOfVariousStateStatuteOfLimitation	500000	USD
CY2011	clh	Expiring Statute Of Limitations Related To Historical Canadian Business Combination ExpiringStatuteOfLimitationsRelatedToHistoricalCanadianBusinessCombination	5700000	USD
CY2011	clh	Number Of Expansions NumberOfExpansions	1	Expansions
CY2011	clh	Number Of Operations Not Managed By Reportable Segments NumberOfOperationsNotManagedByReportableSegments	2	ReportableSegments
CY2010	clh	Gain Loss On Sale Of Fixed Assets And Assets Held For Sale GainLossOnSaleOfFixedAssetsAndAssetsHeldForSale	2795000	USD
CY2011	clh	Gain Loss On Sale Of Fixed Assets And Assets Held For Sale GainLossOnSaleOfFixedAssetsAndAssetsHeldForSale	3048000	USD
CY2010	clh	Gain On Sales Of Businesses GainOnSalesOfBusinesses	2678000	USD
CY2011Q4	clh	Anticipated Payment For Asset Retirement Obligations After Year Five AnticipatedPaymentForAssetRetirementObligationsAfterYearFive	223960000	USD
CY2011Q4	clh	Anticipated Payment For Asset Retirement Obligations Year Five AnticipatedPaymentForAssetRetirementObligationsYearFive	5800000	USD
CY2011Q4	clh	Anticipated Payment For Asset Retirement Obligations Year Four AnticipatedPaymentForAssetRetirementObligationsYearFour	7264000	USD
CY2011Q4	clh	Anticipated Payment For Asset Retirement Obligations Year One AnticipatedPaymentForAssetRetirementObligationsYearOne	4371000	USD
CY2011Q4	clh	Anticipated Payment For Asset Retirement Obligations Year Three AnticipatedPaymentForAssetRetirementObligationsYearThree	6251000	USD
CY2011Q4	clh	Anticipated Payment For Asset Retirement Obligations Year Two AnticipatedPaymentForAssetRetirementObligationsYearTwo	6090000	USD
CY2011Q4	clh	Anticipated Self Insurance Payments Thereafter AnticipatedSelfInsurancePaymentsThereafter	1563000	USD
CY2011Q4	clh	Anticipated Self Insurance Payments Year Five AnticipatedSelfInsurancePaymentsYearFive	759000	USD
CY2011Q4	clh	Anticipated Self Insurance Payments Year Four AnticipatedSelfInsurancePaymentsYearFour	1252000	USD
CY2011Q4	clh	Anticipated Self Insurance Payments Year One AnticipatedSelfInsurancePaymentsYearOne	4588000	USD
CY2011Q4	clh	Anticipated Self Insurance Payments Year Three AnticipatedSelfInsurancePaymentsYearThree	2041000	USD
CY2011Q4	clh	Anticipated Self Insurance Payments Year Two AnticipatedSelfInsurancePaymentsYearTwo	2806000	USD
CY2011	clh	Approvals To Accept Waste Maximum ApprovalsToAcceptWasteMaximum	P5Y
CY2010	clh	Asset Retirement Obligation Changes Recorded In Statement Of Income AssetRetirementObligationChangesRecordedInStatementOfIncome	138000	USD
CY2011	clh	Asset Retirement Obligation Changes Recorded In Statement Of Income AssetRetirementObligationChangesRecordedInStatementOfIncome	1402000	USD
CY2011	clh	Asset Retirement Obligation Foreign Currency Translation And Other AssetRetirementObligationForeignCurrencyTranslationAndOther	24000	USD
CY2010	clh	Asset Retirement Obligation Foreign Currency Translation And Other AssetRetirementObligationForeignCurrencyTranslationAndOther	136000	USD
CY2011	clh	Asset Retirement Obligation Other Changes Recorded In Balance Sheet AssetRetirementObligationOtherChangesRecordedInBalanceSheet	3940000	USD
CY2010	clh	Asset Retirement Obligation Other Changes Recorded In Balance Sheet AssetRetirementObligationOtherChangesRecordedInBalanceSheet	-385000	USD
CY2011	clh	Asset Retirement Obligations Liabilities Assumed In Acquisitions AssetRetirementObligationsLiabilitiesAssumedInAcquisitions	202000	USD
CY2010	clh	Asset Retirment Obligations AssetRetirmentObligations	0.0102
CY2011	clh	Asset Retirment Obligations AssetRetirmentObligations	0.0101
CY2010Q4	clh	Assets Noncurrent Excluding Property Plant And Equipment AssetsNoncurrentExcludingPropertyPlantAndEquipment	194544000	USD
CY2011Q4	clh	Assets Noncurrent Excluding Property Plant And Equipment AssetsNoncurrentExcludingPropertyPlantAndEquipment	289988000	USD
CY2011Q4	clh	Camp Equipment Gross CampEquipmentGross	110242000	USD
CY2010Q4	clh	Camp Equipment Gross CampEquipmentGross	62717000	USD
CY2011Q4	clh	Cash And Cash Equivalents Bank Disbursement Account Minimum Balance Allowed CashAndCashEquivalentsBankDisbursementAccountMinimumBalanceAllowed	0	USD
CY2011	clh	Change In Estimate Of Previous Tax Liability ChangeInEstimateOfPreviousTaxLiability	300000	USD
CY2011Q4	clh	Closure Post Closure And Remedial Liabilities Net ClosurePostClosureAndRemedialLiabilitiesNet	155142000	USD
CY2010Q4	clh	Closure Post Closure And Remedial Liabilities Net ClosurePostClosureAndRemedialLiabilitiesNet	161774000	USD
CY2011	clh	Consumed Airspace ConsumedAirspace	-1102000	yd3
CY2009	clh	Consumed Airspace ConsumedAirspace	-908000	yd3
CY2010	clh	Consumed Airspace ConsumedAirspace	-1113000	yd3
CY2010	clh	Credit Adjusted Risk Free Rate CreditAdjustedRiskFreeRate	0.0974
CY2011	clh	Credit Adjusted Risk Free Rate CreditAdjustedRiskFreeRate	0.0879
CY2011Q4	clh	Debt Payable To Affiliates Subsidiaries And Holding Companies DebtPayableToAffiliatesSubsidiariesAndHoldingCompanies	0	USD
CY2010Q4	clh	Debt Payable To Affiliates Subsidiaries And Holding Companies DebtPayableToAffiliatesSubsidiariesAndHoldingCompanies	0	USD
CY2011Q4	clh	Debt Receivable From Affiliates Subsidiaries And Holding Companies DebtReceivableFromAffiliatesSubsidiariesAndHoldingCompanies	0	USD
CY2010Q4	clh	Debt Receivable From Affiliates Subsidiaries And Holding Companies DebtReceivableFromAffiliatesSubsidiariesAndHoldingCompanies	0	USD
CY2011	clh	Deductible Per Occurrence For Workers Compensation General Liability And Vehicle Liability DeductiblePerOccurrenceForWorkersCompensationGeneralLiabilityAndVehicleLiability	500000	USD
CY2009	clh	Deferred Income Tax Expense Benefit Net Of Discontinued Operations DeferredIncomeTaxExpenseBenefitNetOfDiscontinuedOperations	4729000	USD
CY2010	clh	Deferred Income Tax Expense Benefit Net Of Discontinued Operations DeferredIncomeTaxExpenseBenefitNetOfDiscontinuedOperations	4158000	USD
CY2010Q4	clh	Deferred Tax Assets Accrued Compensation DeferredTaxAssetsAccruedCompensation	1394000	USD
CY2011Q4	clh	Deferred Tax Assets Accrued Compensation DeferredTaxAssetsAccruedCompensation	2279000	USD
CY2011Q4	clh	Deferred Tax Assets Accrued Expenses DeferredTaxAssetsAccruedExpenses	13635000	USD
CY2010Q4	clh	Deferred Tax Assets Accrued Expenses DeferredTaxAssetsAccruedExpenses	11960000	USD
CY2011Q4	clh	Deferred Tax Assets Closure Post Closure And Remedial Liabilities DeferredTaxAssetsClosurePostClosureAndRemedialLiabilities	31082000	USD
CY2010Q4	clh	Deferred Tax Assets Closure Post Closure And Remedial Liabilities DeferredTaxAssetsClosurePostClosureAndRemedialLiabilities	35885000	USD
CY2010Q4	clh	Deferred Tax Assets Stock Based Compensation DeferredTaxAssetsStockBasedCompensation	2749000	USD
CY2011Q4	clh	Deferred Tax Assets Stock Based Compensation DeferredTaxAssetsStockBasedCompensation	1884000	USD
CY2010Q4	clh	Deferred Tax Assets Uncertain Tax Positions Accrued Interest And Federal Benefit DeferredTaxAssetsUncertainTaxPositionsAccruedInterestAndFederalBenefit	10341000	USD
CY2011Q4	clh	Deferred Tax Assets Uncertain Tax Positions Accrued Interest And Federal Benefit DeferredTaxAssetsUncertainTaxPositionsAccruedInterestAndFederalBenefit	11462000	USD
CY2011Q4	clh	Deferred Tax Liabilities Gross DeferredTaxLiabilitiesGross	134662000	USD
CY2010Q4	clh	Deferred Tax Liabilities Gross DeferredTaxLiabilitiesGross	84038000	USD
CY2011Q4	clh	Deferred Tax Liabilities Property Plant And Equipment Increase Decrease DeferredTaxLiabilitiesPropertyPlantAndEquipmentIncreaseDecrease	34600000	USD
CY2010Q4	clh	Deferred Tax Liabilitiespermits And Customer Database DeferredTaxLiabilitiespermitsAndCustomerDatabase	19412000	USD
CY2011Q4	clh	Deferred Tax Liabilitiespermits And Customer Database DeferredTaxLiabilitiespermitsAndCustomerDatabase	20547000	USD
CY2011	clh	Defined Benefit Plan Assumptions Used In Calculating Benefit Obligation Adjustment For Investment And Custodial Fees DefinedBenefitPlanAssumptionsUsedInCalculatingBenefitObligationAdjustmentForInvestmentAndCustodialFees	0.007
CY2011	clh	Discount Reserves DiscountReserves	131.5	USD
CY2011	clh	Distributions Earned On Employee Participation Plan DistributionsEarnedOnEmployeeParticipationPlan	189000	USD
CY2010	clh	Distributions Earned On Employee Participation Plan DistributionsEarnedOnEmployeeParticipationPlan	148000	USD
CY2009	clh	Distributions Earned On Employee Participation Plan DistributionsEarnedOnEmployeeParticipationPlan	0	USD
CY2009	clh	Dividends Paid DividendsPaid	0	USD
CY2011	clh	Dividends Paid Received DividendsPaidReceived	0	USD
CY2009	clh	Effective Income Tax Rate EffectiveIncomeTaxRate	0.42
CY2011	clh	Effective Income Tax Rate EffectiveIncomeTaxRate	0.31
CY2010	clh	Effective Income Tax Rate EffectiveIncomeTaxRate	0.31
CY2011	clh	Expected Return On Fair Value Of Assets ExpectedReturnOnFairValueOfAssets	0.0650
CY2010	clh	Expected Return On Fair Value Of Assets ExpectedReturnOnFairValueOfAssets	0.0675
CY2009	clh	Expected Return On Fair Value Of Assets ExpectedReturnOnFairValueOfAssets	0.0675
CY2011Q4	clh	Expense Recognized In Other Comprehensive Income ExpenseRecognizedInOtherComprehensiveIncome	393000	USD
CY2009Q4	clh	Expense Recognized In Other Comprehensive Income ExpenseRecognizedInOtherComprehensiveIncome	-786000	USD
CY2010	clh	Net Interest Income From Affiliates Subsidiaries And Holding Company NetInterestIncomeFromAffiliatesSubsidiariesAndHoldingCompany	0	USD
CY2011Q4	clh	Non Landfill Closure And Post Closure Liabilities NonLandfillClosureAndPostClosureLiabilities	9100000	USD
CY2009	clh	Gain Loss On Sale Of Fixed Assets And Assets Held For Sale GainLossOnSaleOfFixedAssetsAndAssetsHeldForSale	259000	USD
CY2009	clh	Gain On Sales Of Businesses GainOnSalesOfBusinesses	0	USD
CY2011	clh	Gain On Sales Of Businesses GainOnSalesOfBusinesses	0	USD
CY2011	clh	Imputed Interest Minimim ImputedInterestMinimim	0.04
CY2011Q4	clh	Imputed Interest Rate ImputedInterestRate	1230000	USD
CY2011	clh	Imputed Interest Rate Maximum ImputedInterestRateMaximum	0.16
CY2011	clh	Income Loss From Affiliates Subsidiaries And Holding Company IncomeLossFromAffiliatesSubsidiariesAndHoldingCompany	0	USD
CY2009	clh	Income Loss From Affiliates Subsidiaries And Holding Company IncomeLossFromAffiliatesSubsidiariesAndHoldingCompany	0	USD
CY2010	clh	Income Loss From Affiliates Subsidiaries And Holding Company IncomeLossFromAffiliatesSubsidiariesAndHoldingCompany	0	USD
CY2010	clh	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments And Income From Discountinued Operations IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestmentsAndIncomeFromDiscountinuedOperations	188357000	USD
CY2009	clh	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments And Income From Discountinued Operations IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestmentsAndIncomeFromDiscountinuedOperations	63505000	USD
CY2010	clh	Income Tax Expense Benefit Net Of Discountinued Operations IncomeTaxExpenseBenefitNetOfDiscountinuedOperations	57842000	USD
CY2009	clh	Income Tax Expense Benefit Net Of Discountinued Operations IncomeTaxExpenseBenefitNetOfDiscountinuedOperations	26819000	USD
CY2011	clh	Increase Decreade Tax Benefit From Stock Options Exercised IncreaseDecreadeTaxBenefitFromStockOptionsExercised	16200000	USD
CY2010	clh	Inflation Rate InflationRate	0.0102
CY2011	clh	Inflation Rate InflationRate	0.0101
CY2010	clh	Interest Expense Net InterestExpenseNet	27936000	USD
CY2011	clh	Interest Expense Net InterestExpenseNet	39389000	USD
CY2009	clh	Interest Expense Net InterestExpenseNet	15999000	USD
CY2010Q4	clh	Landfill Final Closure And Post Closure Liabilities LandfillFinalClosureAndPostClosureLiabilities	29800000	USD
CY2011Q4	clh	Landfill Final Closure And Post Closure Liabilities LandfillFinalClosureAndPostClosureLiabilities	25800000	USD
CY2011Q4	clh	Landfill Sites LandfillSites	11	Landfill_Sites
CY2011	clh	Lease Terms Range Maximum LeaseTermsRangeMaximum	P20Y
CY2011	clh	Lease Terms Range Minimum LeaseTermsRangeMinimum	P1Y
CY2010	clh	Line Of Credit Facility Borrowing Capacity LineOfCreditFacilityBorrowingCapacity	33900000	USD
CY2011	clh	Line Of Credit Facility Borrowing Capacity LineOfCreditFacilityBorrowingCapacity	167400000	USD
CY2011	clh	Net Dividend Income From Affiliates Subsidiaries And Holding Company NetDividendIncomeFromAffiliatesSubsidiariesAndHoldingCompany	0	USD
CY2009	clh	Net Dividend Income From Affiliates Subsidiaries And Holding Company NetDividendIncomeFromAffiliatesSubsidiariesAndHoldingCompany	0	USD
CY2010	clh	Net Dividend Income From Affiliates Subsidiaries And Holding Company NetDividendIncomeFromAffiliatesSubsidiariesAndHoldingCompany	0	USD
CY2011	clh	Net Interest Income From Affiliates Subsidiaries And Holding Company NetInterestIncomeFromAffiliatesSubsidiariesAndHoldingCompany	0	USD
CY2009	clh	Net Interest Income From Affiliates Subsidiaries And Holding Company NetInterestIncomeFromAffiliatesSubsidiariesAndHoldingCompany	0	USD
CY2010Q4	clh	Non Landfill Closure And Post Closure Liabilities NonLandfillClosureAndPostClosureLiabilities	8900000	USD
CY2011Q4	clh	Number Of Active Non Supervisory Canadian Employees NumberOfActiveNonSupervisoryCanadianEmployees	26
CY2011Q4	clh	Number Of Service Locations NumberOfServiceLocations	1	service_locations
CY2011	clh	Operating Segments Number OperatingSegmentsNumber	4
CY2011Q4	clh	Payables To Affiliates Subsidiaries And Holding Companies PayablesToAffiliatesSubsidiariesAndHoldingCompanies	0	USD
CY2010Q4	clh	Payables To Affiliates Subsidiaries And Holding Companies PayablesToAffiliatesSubsidiariesAndHoldingCompanies	0	USD
CY2011	clh	Payments For Proceeds From Interest PaymentsForProceedsFromInterest	0	USD
CY2010	clh	Payments For Proceeds From Interest PaymentsForProceedsFromInterest	0	USD
CY2009	clh	Payments For Proceeds From Interest PaymentsForProceedsFromInterest	0	USD
CY2011	clh	Payments Of Principal On Debt PaymentsOfPrincipalOnDebt	0	USD
CY2009	clh	Payments Of Principal On Debt PaymentsOfPrincipalOnDebt	53032000	USD
CY2010	clh	Payments Of Principal On Debt PaymentsOfPrincipalOnDebt	30000000	USD
CY2011Q4	clh	Percentage Of Airspace Remaining PercentageOfAirspaceRemaining	0.225
CY2011	clh	Period Facility Sat Idled PeriodFacilitySatIdled	P18M
CY2011Q4	clh	Permitted But Not Highly Probable Airspace PermittedButNotHighlyProbableAirspace	1500000	yd3
CY2010Q4	clh	Prepaid Expenses And Other Assets Current PrepaidExpensesAndOtherAssetsCurrent	28939000	USD
CY2011Q4	clh	Prepaid Expenses And Other Assets Current PrepaidExpensesAndOtherAssetsCurrent	73349000	USD
CY2011Q4	clh	Prepaid Expenses And Other Assets Current Increase PrepaidExpensesAndOtherAssetsCurrentIncrease	30500000	USD
CY2010Q4	clh	Probable Airspace ProbableAirspace	28557000	yd3
CY2009Q4	clh	Probable Airspace ProbableAirspace	25765000	yd3
CY2008Q4	clh	Probable Airspace ProbableAirspace	28308000	yd3
CY2011Q4	clh	Probable Airspace ProbableAirspace	27557000	yd3
CY2011	clh	Proceeds From Insurance Settlement ProceedsFromInsuranceSettlement	0	USD
CY2009	clh	Proceeds From Insurance Settlement ProceedsFromInsuranceSettlement	0	USD
CY2010	clh	Proceeds From Insurance Settlement ProceedsFromInsuranceSettlement	1336000	USD
CY2011	clh	Proceeds From Intercompany Debt ProceedsFromIntercompanyDebt	0	USD
CY2010	clh	Proceeds From Intercompany Debt ProceedsFromIntercompanyDebt	0	USD
CY2009	clh	Proceeds From Intercompany Debt ProceedsFromIntercompanyDebt	0	USD
CY2009	clh	Proceeds From Intercompany Financing ProceedsFromIntercompanyFinancing	0	USD
CY2009	clh	Proceeds From Sales Of Fixed Assets And Assets Held For Sale ProceedsFromSalesOfFixedAssetsAndAssetsHeldForSale	452000	USD
CY2010	clh	Proceeds From Sales Of Fixed Assets And Assets Held For Sale ProceedsFromSalesOfFixedAssetsAndAssetsHeldForSale	16053000	USD
CY2011	clh	Proceeds From Sales Of Fixed Assets And Assets Held For Sale ProceedsFromSalesOfFixedAssetsAndAssetsHeldForSale	6794000	USD
CY2009	clh	Property Plant And Equipment Depreciation And Amortization PropertyPlantAndEquipmentDepreciationAndAmortization	50400000	USD
CY2011	clh	Property Plant And Equipment Depreciation And Amortization PropertyPlantAndEquipmentDepreciationAndAmortization	99900000	USD
CY2010	clh	Property Plant And Equipment Depreciation And Amortization PropertyPlantAndEquipmentDepreciationAndAmortization	72900000	USD
CY2011Q4	clh	Quarterly Offerings Of Shares QuarterlyOfferingsOfShares	100000	shares
CY2011Q4	clh	Receivables From Affiliates Subsidiaries And Holding Companies ReceivablesFromAffiliatesSubsidiariesAndHoldingCompanies	0	USD
CY2010Q4	clh	Receivables From Affiliates Subsidiaries And Holding Companies ReceivablesFromAffiliatesSubsidiariesAndHoldingCompanies	0	USD
CY2011	clh	Regulatory Post Closure Period For Landfill RegulatoryPostClosurePeriodForLandfill	30
CY2011	clh	Remaining Highly Probable Airspace RemainingHighlyProbableAirspace	27557000	yd3
CY2010Q4	clh	Unbilled Accounts Receivable Current UnbilledAccountsReceivableCurrent	19117000	USD
CY2011	clh	Rentention For Enviromental Impairment RententionForEnviromentalImpairment	1000000	USD
CY2011	clh	Repayment Of Capital Lease Obligation RepaymentOfCapitalLeaseObligation	7837000	USD
CY2010	clh	Repayment Of Capital Lease Obligation RepaymentOfCapitalLeaseObligation	5126000	USD
CY2009	clh	Repayment Of Capital Lease Obligation RepaymentOfCapitalLeaseObligation	1118000	USD
CY2011	clh	Reporting Segments Number ReportingSegmentsNumber	4	ReportableSegments
CY2011	clh	Reserves To Be Provided Over Remaining Site Lives ReservesToBeProvidedOverRemainingSiteLives	-218855000	USD
CY2011Q4	clh	Self Insurance Discount Rate SelfInsuranceDiscountRate	-142000	USD
CY2011	clh	Self Insurance Liabilities SelfInsuranceLiabilities	12900000	USD
CY2010	clh	Self Insurance Liabilities SelfInsuranceLiabilities	12100000	USD
CY2011	clh	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Expected Forfeiture Rate Employees ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedForfeitureRateEmployees	0.05
CY2011	clh	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Expected Forfeiture Rates Executives Directors ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedForfeitureRatesExecutivesDirectors	0.04
CY2009	clh	Shares Held Under Employee Participation Plan SharesHeldUnderEmployeeParticipationPlan	-1150000	USD
CY2010	clh	Shares Held Under Employee Participation Plan SharesHeldUnderEmployeeParticipationPlan	373000	USD
CY2011	clh	Shares Held Under Employee Participation Plan SharesHeldUnderEmployeeParticipationPlan	308000	USD
CY2011	clh	Site Contingency Cleanup Costs Number Of Sites Owned By Third Party SiteContingencyCleanupCostsNumberOfSitesOwnedByThirdParty	35
CY2011	clh	Site Contingency Number Of Sites Owned By Entity SiteContingencyNumberOfSitesOwnedByEntity	65
CY2002	clh	Site Contingency Number Of Sites Owned By Third Party SiteContingencyNumberOfSitesOwnedByThirdParty	2	Sites
CY2009	clh	Stock Issued During Period Value Stock Warrants Exercised StockIssuedDuringPeriodValueStockWarrantsExercised	525000	USD
CY2011Q4	clh	Unbilled Accounts Receivable Current UnbilledAccountsReceivableCurrent	29385000	USD
CY2010	clh	Uncertain Tax Position Interest And Penalties Net Of Benefit UncertainTaxPositionInterestAndPenaltiesNetOfBenefit	-2636000	USD
CY2009	clh	Uncertain Tax Position Interest And Penalties Net Of Benefit UncertainTaxPositionInterestAndPenaltiesNetOfBenefit	-3482000	USD
CY2011	clh	Uncertain Tax Position Interest And Penalties Net Of Benefit UncertainTaxPositionInterestAndPenaltiesNetOfBenefit	-2240000	USD
CY2009	clh	Uncertain Tax Position Releases Net Of Benefit UncertainTaxPositionReleasesNetOfBenefit	0	USD
CY2011	clh	Uncertain Tax Position Releases Net Of Benefit UncertainTaxPositionReleasesNetOfBenefit	6156000	USD
CY2010	clh	Uncertain Tax Position Releases Net Of Benefit UncertainTaxPositionReleasesNetOfBenefit	14282000	USD
CY2011Q4	clh	Undiscounted Closure And Post Closure Liabilities UndiscountedClosureAndPostClosureLiabilities	253736000	USD
CY2011Q4	clh	Undiscounted Self Insurance Liabilities UndiscountedSelfInsuranceLiabilities	13009000	USD
CY2010Q4	clh	Undistributed Earnings Of Foreign Subsidiaries UndistributedEarningsOfForeignSubsidiaries	52700000	USD
CY2011Q4	clh	Undistributed Earnings Of Foreign Subsidiaries UndistributedEarningsOfForeignSubsidiaries	105400000	USD
CY2011Q4	clh	Unfunded Pension Liability Deferred Taxes UnfundedPensionLiabilityDeferredTaxes	283000	USD
CY2010Q4	clh	Unfunded Pension Liability Deferred Taxes UnfundedPensionLiabilityDeferredTaxes	225000	USD
CY2009Q4	clh	Unfunded Pension Liability Deferred Taxes UnfundedPensionLiabilityDeferredTaxes	201000	USD
CY2010Q4	clh	Unrecognized Tax Benefits And Other Long Term Liabilities Noncurrent UnrecognizedTaxBenefitsAndOtherLongTermLiabilitiesNoncurrent	82744000	USD
CY2011Q4	clh	Unrecognized Tax Benefits And Other Long Term Liabilities Noncurrent UnrecognizedTaxBenefitsAndOtherLongTermLiabilitiesNoncurrent	117354000	USD
CY2010Q4	clh	Unrecognized Tax Benefits Including Interest And Penalties UnrecognizedTaxBenefitsIncludingInterestAndPenalties	65900000	USD
CY2011Q4	clh	Unrecognized Tax Benefits Including Interest And Penalties UnrecognizedTaxBenefitsIncludingInterestAndPenalties	63000000	USD
CY2011Q4	clh	Valuation Allowance Amount Foreign Net Operating Loss ValuationAllowanceAmountForeignNetOperatingLoss	200000	USD
CY2010Q4	clh	Valuation Allowance Amount Foreign Net Operating Loss ValuationAllowanceAmountForeignNetOperatingLoss	200000	USD
CY2011Q4	clh	Valuation Allowance Amount Foreign Tax Credits ValuationAllowanceAmountForeignTaxCredits	10200000	USD
CY2010Q4	clh	Valuation Allowance Amount Foreign Tax Credits ValuationAllowanceAmountForeignTaxCredits	11300000	USD
CY2011Q4	clh	Valuation Allowance Amount State Net Operating Loss ValuationAllowanceAmountStateNetOperatingLoss	1100000	USD
CY2010Q4	clh	Valuation Allowance Amount State Net Operating Loss ValuationAllowanceAmountStateNetOperatingLoss	1400000	USD
CY2010Q4	clh	Vehicles Gross VehiclesGross	162397000	USD
CY2011Q4	clh	Vehicles Gross VehiclesGross	231980000	USD
CY2011	clh	Write Off Deferred Financing Costs And Debt Discount WriteOffDeferredFinancingCostsAndDebtDiscount	0	USD
CY2009	clh	Write Off Deferred Financing Costs And Debt Discount WriteOffDeferredFinancingCostsAndDebtDiscount	1851000	USD
CY2010	clh	Write Off Deferred Financing Costs And Debt Discount WriteOffDeferredFinancingCostsAndDebtDiscount	1394000	USD
CY2011	dei	Amendment Flag AmendmentFlag	false
CY2011	dei	Current Fiscal Year End Date CurrentFiscalYearEndDate	--12-31
CY2011	dei	Document Fiscal Period Focus DocumentFiscalPeriodFocus	FY
CY2011	dei	Document Fiscal Year Focus DocumentFiscalYearFocus	2011
CY2011	dei	Document Period End Date DocumentPeriodEndDate	2011-12-31
CY2011	dei	Document Type DocumentType	10-K
CY2011	dei	Entity Central Index Key EntityCentralIndexKey	0000822818
CY2012Q1	dei	Entity Common Stock Shares Outstanding EntityCommonStockSharesOutstanding	53218582	shares
CY2011	dei	Entity Current Reporting Status EntityCurrentReportingStatus	Yes
CY2011	dei	Entity Filer Category EntityFilerCategory	Large Accelerated Filer
CY2011Q2	dei	Entity Public Float EntityPublicFloat	2400000000	USD
CY2011	dei	Entity Registrant Name EntityRegistrantName	CLEAN HARBORS INC
CY2011	dei	Entity Voluntary Filers EntityVoluntaryFilers	No
CY2011	dei	Entity Well Known Seasoned Issuer EntityWellKnownSeasonedIssuer	Yes

Files In Submission

Name	View Source	Status
0001445305-12-000549-index-headers.html	Edgar Link	pending
0001445305-12-000549-index.html	Edgar Link	pending
0001445305-12-000549.txt	Edgar Link	pending
0001445305-12-000549-xbrl.zip	Edgar Link	pending
chart.jpg	Edgar Link	pending
clh-12312011ex311.htm	Edgar Link	pending
clh-20111231.xml	Edgar Link	completed
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clh-20111231x10k.htm	Edgar Link	pending
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clh-20111231_def.xml	Edgar Link	unprocessable
clh-20111231_lab.xml	Edgar Link	unprocessable
clh-20111231_pre.xml	Edgar Link	unprocessable
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clh12312011ex23.htm	Edgar Link	pending
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clh12312011ex312.htm	Edgar Link	pending
clh12312011ex32.htm	Edgar Link	pending
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report.css	Edgar Link	pending
Show.js	Edgar Link	pending

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$CLH
CLEAN HARBORS INC Stock $clh

2011 Q4 Form 10-K Financial Statement

#000144530512000549 Filed on February 29, 2012

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$CLH CLEAN HARBORS INC Stock $clh

2011 Q4 Form 10-K Financial Statement

#000144530512000549 Filed on February 29, 2012

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$CLH
CLEAN HARBORS INC Stock $clh