XML 77 R60.htm IDEA: XBRL DOCUMENT v3.6.0.2

Equipment Lease Obligations - Schedule of Future Minimum Lease Payments for Equipment Lease Obligations (Parenthetical) (Detail)	Dec. 31, 2016
Minimum
Capital Leased Assets [Line Items]
Capital leases future minimum payments interest rate	0.00%
Maximum
Capital Leased Assets [Line Items]
Capital leases future minimum payments interest rate	5.00%

X

- Definition

Capital leases future minimum payments interest rate.

+ References

No definition available.

+ Details

Name:	snd_CapitalLeasesFutureMinimumPaymentsInterestRate
Namespace Prefix:	snd_
Data Type:	num:percentItemType
Balance Type:	na
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_CapitalLeasedAssetsLineItems
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

X

- Details

Name:	us-gaap_RangeAxis=us-gaap_MinimumMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_RangeAxis=us-gaap_MaximumMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: