Consolidated Subsidiary, Ownership Percentage

No definition available.

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- Definition

The percentage of excess cash flow which must be used to redeem New Secured Notes due December 2018 until the Company has offered to purchase more than $100.0 million of the aggregate principal amount of the notes outstanding.

+ References

No definition available.

+ Details

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- Definition

The percentage of excess cash flow which must be used to redeem New Secured Notes due December 2018 until the Company has offered to purchase up to $100.0 million of the aggregate principal amount of the notes outstanding.

+ References

No definition available.

+ Details

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- Definition

The percentage of excess cash flow which must be used to redeem the New Secured Notes due December 2018 until the Company has offered to purchase up to $75.0 million of the aggregate principal amount of the notes outstanding.

+ References

No definition available.

+ Details

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Period Type:	instant

- Definition

The percentage of excess cash flow which must be used to redeem New Secured Notes due December 2018 until the Company has offered to purchase up to $50.0 million of the aggregate principal amount of the notes outstanding.

+ References

No definition available.

+ Details

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- Definition

The aggregate principal amount of New Senior Secured Notes due December 2018 that were received in exchange by holders of existing senior secured notes due December 2016 in a May 2016 exchange transaction.

+ References

No definition available.

+ Details

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Period Type:	instant

- Definition

Special Redemption, percent penalty applied to outstanding principle if company fails to meet special redemption provisions as defined under New Secured Notes indenture agreement.

+ References

No definition available.

+ Details

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Period Type:	instant

- Definition

The amount of the redemption price in percentage in the event of excess cash flow.

+ References

No definition available.

+ Details

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Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Redemption Price, Stated as a Percentage of Principal, Change of Control

+ References

No definition available.

+ Details

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Namespace Prefix:	casl_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

- Definition

Redemption Price, Stated as a Percentage of Principal, Upon Certain Asset Sales

+ References

No definition available.

+ Details

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Namespace Prefix:	casl_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

- Definition

The upper bound of the amount of New Secured Notes due December 2018 to be purchased with excess cash flow, as defined by the indenture agreement, at an excess cash flow percentage of 25%.

+ References

No definition available.

+ Details

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Period Type:	instant

- Definition

The upper bound of the amount of New Secured Notes due December 2018 to be purchased with excess cash flow, as defined by the indenture agreement, at an excess cash flow percentage of 75%.

+ References

No definition available.

+ Details

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Balance Type:	credit
Period Type:	instant

- Definition

The upper bound of the amount of New Secured Notes due December 2018 to be purchased with excess cash flow, as defined by the indenture agreement, an an excess cash flow percentage of 50%.

+ References

No definition available.

+ Details

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Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

The aggregate principal balance of senior secured notes due December 2016 exchanged for New Senior Secured Notes due December 2018 in a May 2016 exchange transaction.

+ References

No definition available.

+ Details

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Period Type:	instant

- Definition

The amount of the aggregate principal amount of the New Secured Notes that the Company must redeem on one or more occasions prior to October 31, 2016 using cash available to the Company and/or net proceeds from sales of assets of the Company or a Restricted Subsidiary outside the normal course of business.

+ References

No definition available.

+ Details

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Balance Type:	credit
Period Type:	instant

- Definition

The maturity date of the New Secured Notes if the Special Redemption Condition is not met.

+ References

No definition available.

+ Details

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Data Type:	xbrli:dateItemType
Balance Type:	na
Period Type:	duration

- Definition

Timeframe after the end of each fiscal year that the Company must make an offer to purchase New Secured Notes with certain of its excess cash flow for such fiscal year. Days After Fiscal Year End

+ References

No definition available.

+ Details

Name:	casl_TimeframeAfterEndOfEachFiscalYearThatCompanyMustMakeOfferToPurchaseNewSecuredNotesWithCertainOfItsExcessCashFlowForSuchFiscalYearDaysAfterFiscalYearEnd
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Period Type:	duration

- Definition

Contractual interest rate for funds borrowed, under the debt agreement.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.22(a)(1))
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

+ Details

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Period Type:	instant

- 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

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- Definition

Percentage price of original principal amount of debt at which debt can be redeemed by the issuer.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 470
-Section 50
-Paragraph 3
-Subparagraph e
-URI http://asc.fasb.org/extlink&oid=6479336&loc=d3e64711-112823

+ Details

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- Definition

The cash outflow for the extinguishment of long-term borrowing, with the highest claim on the assets of the entity in case of bankruptcy or liquidation, before its maturity.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Glossary Financing Activities
-URI http://asc.fasb.org/extlink&oid=6513228

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 15
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=66902209&loc=d3e3291-108585

+ Details

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Balance Type:	credit
Period Type:	duration

- Definition

Gross amount of debt extinguished.

+ References

No definition available.

+ Details

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Data Type:	xbrli:monetaryItemType
Balance Type:	debit
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- Definition

Including the current and noncurrent portions, carrying value as of the balance sheet date of Notes with the highest claim on the assets of the issuer in case of bankruptcy or liquidation (with maturities initially due after one year or beyond the operating cycle if longer). Senior note holders are paid off in full before any payments are made to junior note holders.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 944
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.7-03.16(a))
-URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.9-03.16)
-URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878

+ Details

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Balance Type:	credit
Period Type:	instant

- Details

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- Details

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- Details

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- Details

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Debt Secured Notes (Details) - USD ($)	9 Months Ended	12 Months Ended
Debt Secured Notes (Details) - USD ($)	Sep. 30, 2016	Dec. 31, 2016	May 13, 2016	Dec. 31, 2015
Debt Instrument [Line Items]
Senior Notes Exchanged, May 2016			$ 1,200,000
New Senior Secured Notes, Received in Exchange, May 2016			$ 1,200,000
Senior Secured Notes Due in 2018 [Member]
Debt Instrument [Line Items]
Senior Notes		$ 177,019,000		$ 203,319,000
Debt Instrument, Interest Rate, Stated Percentage		12.75%
Timeframe after the end of each fiscal year that the Company must make an offer to purchase New Secured Notes with certain of its excess cash flow for such fiscal year. Days After Fiscal Year End		95 days
Debt Instrument, Excess Cash Flow, Percentage, 0 percent		0.00%
Debt Instrument, Excess Cash Flow, Percentage, 25 percent	25.00%
Debt Instrument, Excess Cash Flow, Percentage, 50 percent		50.00%
Debt Instrument, Excess Cash Flow, Percentage, 75 percent		75.00%
Secured Notes to be Purchased with Excess Cash Flow, 50 million		$ 50,000,000
Secured Notes to be Purchased with Excess Cash Flow, 75 million		75,000,000
Secured Notes to be Purchased with Excess Cash Flow, 100 million		$ 100,000,000
Redemption Price, Stated as a Percentage of Principal, Percentage, Excess Cash Flow		103.00%
Debt Instrument, Redemption Price, Percentage		100.00%
Extinguishment of Debt, Amount		$ 27,500
Percent, Penalty Special Redemption Provision		4.00%
Special Redemption Condition, Maturity Date		Sep. 14, 2017
Redemption Price, Stated as a Percentage of Principal, Change of Control		101.00%
Redemption Price, Stated as a Percentage of Principal, Upon Certain Asset Sales		100.00%
Senior Secured Notes Due in 2016 [Member]
Debt Instrument [Line Items]
Senior Notes		$ 0		$ 6,681,000
Early Repayment of Senior Debt	$ 5,629,000
Debt Instrument, Interest Rate, Stated Percentage		12.75%
Domestic Subsidiaries [Member] \| Senior Secured Notes Due in 2018 [Member]
Debt Instrument [Line Items]
Consolidated Subsidiary, Ownership Percentage		100.00%
Minimum
Debt Instrument [Line Items]
Special Redemption, Amount		$ 27,500,000
Maximum
Debt Instrument [Line Items]
Special Redemption, Amount		$ 40,000,000