FRESH START ACCOUNTING - Adjustments to Restricted Cash (Details) $ in Thousands	Dec. 15, 2016 USD ($)
Discharge of Debt [Member]
Fresh-Start Adjustment [Line Items]
Restricted Cash, Transfer from Cash to Fund Escrow Account	$ 5,400

Fresh-Start Adjustment, Increase (Decrease), Restricted Cash and Cash Equivalents, Transfer from Cash to Fund Escrow Account

No definition available.

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