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ACQUISITION OF URANERZ ENERGY CORPORATION - Schedule of Business Acquisition (Details) $ in Thousands | Jun. 18, 2015 USD ($) shares
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Uranerz Energy Corporation |
Business Acquisition [Line Items] |
Value assigned of equity interest issued | $ 106,340
Cash and cash equivalents | 2,459
Inventories | 3,742
Prepaid expenses and other assets | 402
Intangible assets - customer contracts | 10,600
Restricted cash | 2,100
Accounts payable and accrued liabilities | (2,280)
Loans and borrowings | (18,813)
Asset retirement obligation | (2,145)
Non-controlling interest | (3,992)
Goodwill | 47,730
Total purchase consideration | 106,340
Employee Stock Option | Uranerz Energy Corporation |
Business Acquisition [Line Items] |
Value assigned of equity interest issued | $ 3,681
Number of shares issued for acquisition (in shares) | shares | 2,040,408
Common Stock |
Business Acquisition [Line Items] |
Number of shares issued for acquisition (in shares) | shares | 24,457,773
Common Stock | Uranerz Energy Corporation |
Business Acquisition [Line Items] |
Value assigned of equity interest issued | $ 101,744
Common Stock | Uranerz Energy Corporation |
Business Acquisition [Line Items] |
Value assigned of equity interest issued | $ 915
Number of shares issued for acquisition (in shares) | shares | 2,690,250
Building, Machinery, and Equipment | Uranerz Energy Corporation |
Business Acquisition [Line Items] |
Plant and equipment | $ 29,974
Mining Properties and Mineral Rights | Uranerz Energy Corporation |
Business Acquisition [Line Items] |
Plant and equipment | $ 36,563

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