Income Taxes - Deferred Tax Assets and Liabilities (Detail) - USD ($) $ in Thousands	Dec. 31, 2018	Dec. 31, 2017
Deferred tax assets:
Net operating loss and tax credit carryforwards	$ 113,230	$ 103,251
Capital loss carryforwards	15,826	16,375
Foreign tax credit carryforward	17,095	17,095
Self-insurance reserves	8,581	8,734
Interest expense limitation	6,055	0
Accrued liabilities	9,213	9,479
Share-based compensation	1,221	513
Intangible assets	44,748	52,146
Other	670	1,036
Total deferred tax assets	216,639	208,629
Valuation allowance for deferred tax assets	(190,791)	(175,577)
Net deferred tax assets	25,848	33,052
Deferred tax liabilities:
Property and equipment	(25,848)	(33,052)
Total deferred tax liabilities	(25,848)	(33,052)
Net deferred tax asset (liability), net of valuation allowance	$ 0	$ 0

Deferred Tax Assets, Deferred Tax Expense, Interest Expense Limitation

No definition available.

Name:	keg_DeferredTaxAssetsDeferredTaxExpenseInterestExpenseLimitation
Namespace Prefix:	keg_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

The sum of the tax effects as of the balance sheet date of the amount of excesses of tax deductions over gross income in a year (including those arising from unused tax credit carryforwards reduced by a valuation allowance) which cannot be used on the tax returns in the current year but can be carried forward to reduce taxable income or income taxes payable in a future year, for which there must be sufficient tax-basis income to utilize a portion or all of the carryforward amount to realize the deferred tax asset.

+ References

No definition available.