NEW MARKET TAX CREDIT TRANSACTIONS (Details) $ in Millions	1 Months Ended
Dec. 31, 2015 USD ($)
Income Tax Contingency [Line Items]
Capital contributions received by the Investment Fund	$ 17.7
Commonwealth
Income Tax Contingency [Line Items]
Loan receivable from Investment Fund	$ 35.3
Loan receivable from investment fund, interest rate (percent)	1.08%
Investment Fund
Income Tax Contingency [Line Items]
Qualified equity investment into community development entities	$ 51.5
Quality Equity Investment Loan \| CMC Steel Oklahoma, LLC
Income Tax Contingency [Line Items]
Loans payable to community development entities	$ 50.7

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Loan Receivable, Stated Interest Rate

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Qualified Equity Investment into Community Development Entities

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Amount before allowance of loans and leases held in portfolio, including but not limited to, commercial and consumer loans. Includes deferred interest and fees, undisbursed portion of loan balance, unamortized costs and premiums and discounts from face amounts. Excludes loans and leases covered under loss sharing agreements.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 45
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=28367877&loc=d3e4428-111522

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Including the current and noncurrent portions, aggregate carrying value as of the balance sheet date of loans payable (with maturities initially due after one year or beyond the operating cycle if longer).

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

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-Name Accounting Standards Codification
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-Number 210
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