XML 83 R66.htm IDEA: XBRL DOCUMENT v3.6.0.2

Mandatorily Redeemable Series A Preferred Stock - Summary of Series A Redeemable Preferred Stock (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015
Shares Subject To Mandatory Redemption By Settlement Terms [Line Items]
Beginning Balance	$ 34,708
Ending Balance		$ 34,708
Mandatorily Redeemable Series A Preferred Stock
Shares Subject To Mandatory Redemption By Settlement Terms [Line Items]
Beginning Balance	34,708	29,059
Accumulated dividends	4,776	4,865
Net accretion of issuance & transaction costs	845	784
Payoff of Series A Preferred Stock	$ (40,329)
Ending Balance		$ 34,708

X

- Definition

Net accretion of issuance and transaction cost during period.

+ References

No definition available.

+ Details

Name:	snd_NetAccretionOfIssuanceAndTransactionCostDuringPeriod
Namespace Prefix:	snd_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

X

- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

+ Details

Name:	us-gaap_SharesSubjectToMandatoryRedemptionBySettlementTermsLineItems
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

X

- Definition

The amount that is required to be paid, determined under the conditions specified in the contract, if as of the reporting date, the holder of the share has exercised the right to or the shares are mandatorily redeemable within one year of the reporting date or operating cycle, if longer.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 480
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=6940734&loc=d3e22047-110879

+ Details

Name:	us-gaap_SharesSubjectToMandatoryRedemptionSettlementTermsAmountCurrent
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

X

- Definition

Value of accretion of temporary equity during the period due to unpaid dividends.

+ References

No definition available.

+ Details

Name:	us-gaap_TemporaryEquityAccretionOfDividends
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

X

- Definition

Redemption of temporary equity as the result of a triggering event associated with the temporary equity.

+ References

No definition available.

+ Details

Name:	us-gaap_TemporaryEquityEliminationAsPartofReorganization
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

X

- Details

Name:	us-gaap_ScheduleOfSharesSubjectToMandatoryRedemptionBySettlementTermsAxis=us-gaap_MandatorilyRedeemablePreferredStockMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: