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Supplemental Financial Information (Tables) | 12 Months Ended
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Dec. 31, 2017 | Dec. 31, 2016
Condensed Financial Information of Parent Company Only Disclosure [Abstract] |  |
Condensed Income Statement [Table Text Block] | Emera Incorporated C ondensed C o nsolidated Statements of Income For the year ended December 31, 2017
|  | Parent | Subsidiary Issuer |  | Guarantor Subsidiaries | Non-guarantor Subsidiaries | Eliminations | Consolidated
millions of Canadian dollars |  |
Operating revenues | $ | - | $ | - | $ | 4,165 | $ | 2,118 | $ | (57) | $ | 6,226
Operating expenses |  | 41 |  | - |  | 3,241 |  | 1,610 |  | (57) |  | 4,835
Income (loss) from operations |  | (41) |  | - |  | 924 |  | 508 |  | - |  | 1,391
Income (loss) from equity investments in subsidiaries |  | 336 |  | - |  | - |  | - |  | (336) |  | -
Income from equity investments |  | 1 |  | - |  | 1 |  | 122 |  | - |  | 124
Intercompany income (expenses), net |  | 92 |  | 195 |  | (204) |  | (45) |  | (38) |  | -
Other income (expenses), net |  | - |  | - |  | 16 |  | (19) |  | 5 |  | 2
Interest expense, net |  | 138 |  | 155 |  | 242 |  | 163 |  | - |  | 698
Income (loss) before provision for income taxes |  | 250 |  | 40 |  | 495 |  | 403 |  | (369) |  | 819
Income tax expense (recovery) |  | (44) |  | 17 |  | 511 |  | 36 |  | - |  | 520
Net income (loss) |  | 294 |  | 23 |  | (16) |  | 367 |  | (369) |  | 299
Non-controlling interest in subsidiaries |  | - |  | - |  | - |  | 1 |  | 4 |  | 5
Preferred stock dividends |  | 28 |  | - |  | 29 |  | 13 |  | (42) |  | 28
Net income (loss) attributable to common shareholders | $ | 266 | $ | 23 | $ | (45) | $ | 353 | $ | (331) | $ | 266
Comprehensive income (loss) of Emera Incorporated | $ | - | $ | 3 | $ | (392) | $ | 372 | $ | 17 | $ | -
|  | Parent | Subsidiary Issuer |  | Guarantor Subsidiaries | Non-guarantor Subsidiaries | Eliminations | Consolidated
millions of Canadian dollars |  |
Operating revenues | $ | - | $ | - | $ | 2,494 | $ | 1,818 | $ | (35) | $ | 4,277
Operating expenses |  | 39 |  | - |  | 2,127 |  | 1,591 |  | (35) |  | 3,722
Income (loss) from operations |  | (39) |  | - |  | 367 |  | 227 |  | - |  | 555
Income (loss) from equity investments in subsidiaries |  | 150 |  | - |  | - |  | - |  | (150) |  | -
Income from equity investments |  | 18 |  | - |  | - |  | 82 |  | - |  | 100
Intercompany income (expenses), net |  | 203 |  | 101 |  | (107) |  | (151) |  | (46) |  | -
Other income (expenses), net |  | 135 |  | - |  | 24 |  | 15 |  | - |  | 174
Interest expense, net |  | 226 |  | 85 |  | 127 |  | 147 |  | - |  | 585
Income (loss) before provision for income taxes |  | 241 |  | 16 |  | 157 |  | 26 |  | (196) |  | 244
Income tax expense (recovery) |  | (14) |  | 7 |  | 48 |  | (63) |  | - |  | (22)
Net income (loss) |  | 255 |  | 9 |  | 109 |  | 89 |  | (196) |  | 266
Non-controlling interest in subsidiaries |  | - |  | - |  | - |  | 7 |  | 4 |  | 11
Preferred stock dividends |  | 28 |  | - |  | 31 |  | 19 |  | (50) |  | 28
Net income (loss) attributable to common shareholders | $ | 227 | $ | 9 | $ | 78 | $ | 63 | $ | (150) | $ | 227
Comprehensive income (loss) of Emera Incorporated | $ | 228 | $ | 19 | $ | 205 | $ | 59 | $ | (283) | $ | 228
| Emera Incorporated C ondensed C o nsolidated Statements of Income For the year ended December 31, 2016
|  | Parent | Subsidiary Issuer |  | Guarantor Subsidiaries | Non-guarantor Subsidiaries | Eliminations | Consolidated
millions of Canadian dollars |  |
Operating revenues | $ | - | $ | - | $ | 2,494 | $ | 1,818 | $ | (35) | $ | 4,277
Operating expenses |  | 39 |  | - |  | 2,127 |  | 1,591 |  | (35) |  | 3,722
Income (loss) from operations |  | (39) |  | - |  | 367 |  | 227 |  | - |  | 555
Income (loss) from equity investments in subsidiaries |  | 150 |  | - |  | - |  | - |  | (150) |  | -
Income from equity investments |  | 18 |  | - |  | - |  | 82 |  | - |  | 100
Intercompany income (expenses), net |  | 203 |  | 101 |  | (107) |  | (151) |  | (46) |  | -
Other income (expenses), net |  | 135 |  | - |  | 24 |  | 15 |  | - |  | 174
Interest expense, net |  | 226 |  | 85 |  | 127 |  | 147 |  | - |  | 585
Income (loss) before provision for income taxes |  | 241 |  | 16 |  | 157 |  | 26 |  | (196) |  | 244
Income tax expense (recovery) |  | (14) |  | 7 |  | 48 |  | (63) |  | - |  | (22)
Net income (loss) |  | 255 |  | 9 |  | 109 |  | 89 |  | (196) |  | 266
Non-controlling interest in subsidiaries |  | - |  | - |  | - |  | 7 |  | 4 |  | 11
Preferred stock dividends |  | 28 |  | - |  | 31 |  | 19 |  | (50) |  | 28
Net income (loss) attributable to common shareholders | $ | 227 | $ | 9 | $ | 78 | $ | 63 | $ | (150) | $ | 227
Comprehensive income (loss) of Emera Incorporated | $ | 228 | $ | 19 | $ | 205 | $ | 59 | $ | (283) | $ | 228
Condensed Balance Sheet [Table Text Block] |
|  | Parent | Subsidiary Issuer |  | Guarantor Subsidiaries | Non-guarantor Subsidiaries | Eliminations | Consolidated
millions of Canadian dollars |  |
Assets |  |  |  |  |  |  |  |  |  |  |  |
Current assets |  |  |  |  |  |  |  |  |  |  |  |
Cash and cash equivalents | $ | 276 | $ | 21 | $ | 47 | $ | 94 | $ | - | $ | 438
Restricted cash |  | - |  | - |  | 1 |  | 64 |  | - |  | 65
Inventory |  | - |  | - |  | 243 |  | 175 |  | - |  | 418
Derivative instruments |  | 5 |  | - |  | 11 |  | 131 |  | (6) |  | 141
Regulatory assets |  | - |  | - |  | 114 |  | 24 |  | - |  | 138
Intercompany receivables |  | 74 |  | 9 |  | 4 |  | 108 |  | (195) |  | -
Receivables and other current assets |  | 3 |  | - |  | 546 |  | 777 |  | - |  | 1,326
Total current assets |  | 358 |  | 30 |  | 966 |  | 1,373 |  | (201) |  | 2,526
Property, plant and equipment, net of accumulated depreciation |  | 17 |  | - |  | 12,258 |  | 4,720 |  | - |  | 16,995
Other assets |  |  |  |  |  |  |  |  |  |  |  |
Deferred income taxes |  | 70 |  | - |  | (10) |  | 71 |  | 7 |  | 138
Derivative instruments |  | 4 |  | - |  | 2 |  | 110 |  | (4) |  | 112
Regulatory assets |  | - |  | - |  | 552 |  | 686 |  | - |  | 1,238
Net investment in direct financing lease |  | - |  | - |  | 12 |  | 469 |  | - |  | 481
Investments in subsidiaries accounted for using the equity method |  | 8,490 |  | - |  | - |  | - |  | (8,490) |  | -
Investments subject to significant influence |  | 5 |  | - |  | 13 |  | 1,197 |  | - |  | 1,215
Goodwill |  | - |  | - |  | 5,709 |  | 96 |  | - |  | 5,805
Intercompany notes receivable |  | 1,140 |  | 4,285 |  | 1 |  | 955 |  | (6,381) |  | -
Other investments - intercompany |  | - |  | - |  | - |  | 70 |  | (70) |  | -
Other long-term assets |  | 29 |  | - |  | 68 |  | 184 |  | (20) |  | 261
Total other assets |  | 9,738 |  | 4,285 |  | 6,347 |  | 3,838 |  | (14,958) |  | 9,250
Total assets | $ | 10,113 | $ | 4,315 | $ | 19,571 | $ | 9,931 | $ | (15,159) | $ | 28,771
Emera Incorporated
Condensed Consolidated Balance Sheets – Continued
As at December 31, 2017
|  | Parent | Subsidiary Issuer |  | Guarantor Subsidiaries | Non-guarantor Subsidiaries | Eliminations | Consolidated
millions of Canadian dollars |  |
Liabilities and Equity |  |  |  |  |  |  |  |  |  |  |  |
Current liabilities |  |  |  |  |  |  |  |  |  |  |  |
Short-term debt | $ | - | $ | - | $ | 1,241 | $ | - | $ | - | $ | 1,241
Current portion of long-term debt |  | - |  | - |  | 701 |  | 40 |  | - |  | 741
Accounts payable |  | 9 |  | - |  | 620 |  | 532 |  | - |  | 1,161
Intercompany payable |  | 55 |  | 6 |  | 90 |  | 74 |  | (225) |  | -
Derivative instruments |  | 5 |  | - |  | 52 |  | 175 |  | (5) |  | 227
Regulatory liabilities |  | - |  | - |  | 91 |  | 136 |  | (1) |  | 226
Other current liabilities |  | 60 |  | 6 |  | 137 |  | 147 |  | - |  | 350
Total current liabilities |  | 129 |  | 12 |  | 2,932 |  | 1,104 |  | (231) |  | 3,946
Long-term liabilities |  |  |  |  |  |  |  |  |  |  |  |
Long-term debt |  | 2,205 |  | 4,034 |  | 3,741 |  | 3,160 |  | - |  | 13,140
Intercompany long-term debt |  | 656 |  | - |  | 4,582 |  | 1,139 |  | (6,377) |  | -
Deferred income taxes |  | - |  | 4 |  | 435 |  | 565 |  | 7 |  | 1,011
Derivative instruments |  | 4 |  | - |  | 4 |  | 79 |  | (4) |  | 83
Regulatory liabilities |  | - |  | - |  | 1,889 |  | 353 |  | - |  | 2,242
Pension and post-retirement liabilities |  | 21 |  | - |  | 341 |  | 197 |  | - |  | 559
Other long-term liabilities |  | 9 |  | - |  | 267 |  | 352 |  | (19) |  | 609
Total long-term liabilities |  | 2,895 |  | 4,038 |  | 11,259 |  | 5,845 |  | (6,393) |  | 17,644
Equity |  |  |  |  |  |  |  |  |  |  |  |
Common stock |  | 5,601 |  | 242 |  | 4,311 |  | 2,136 |  | (6,689) |  | 5,601
Cumulative preferred stock |  | 709 |  | - |  | 620 |  | 76 |  | (696) |  | 709
Contributed surplus |  | 76 |  | - |  | 110 |  | 148 |  | (258) |  | 76
Accumulated other comprehensive income (loss) |  | (188) |  | (9) |  | (36) |  | (185) |  | 230 |  | (188)
Retained earnings |  | 891 |  | 32 |  | 375 |  | 735 |  | (1,142) |  | 891
Total Emera Incorporated equity |  | 7,089 |  | 265 |  | 5,380 |  | 2,910 |  | (8,555) |  | 7,089
Non-controlling interest in subsidiaries |  | - |  | - |  | - |  | 72 |  | 20 |  | 92
Total equity |  | 7,089 |  | 265 |  | 5,380 |  | 2,982 |  | (8,535) |  | 7,181
Total liabilities and equity | $ | 10,113 | $ | 4,315 | $ | 19,571 | $ | 9,931 | $ | (15,159) | $ | 28,771
| Emera Incorporated Condensed Consolidated Balance Sheets As at December 31, 2016
|  | Parent | Subsidiary Issuer |  | Guarantor Subsidiaries | Non-guarantor Subsidiaries | Eliminations | Consolidated
millions of Canadian dollars |  |
Assets |  |  |  |  |  |  |  |  |  |  |  |
Current assets |  |  |  |  |  |  |  |  |  |  |  |
Cash and cash equivalents | $ | 200 | $ | 28 | $ | 48 | $ | 128 | $ | - | $ | 404
Restricted cash |  | - |  | - |  | 1 |  | 86 |  | - |  | 87
Inventory |  | - |  | - |  | 273 |  | 199 |  | - |  | 472
Derivative instruments |  | 13 |  | - |  | 33 |  | 112 |  | (13) |  | 145
Regulatory assets |  | - |  | - |  | 54 |  | 26 |  | - |  | 80
Intercompany receivable |  | 57 |  | 9 |  | 11 |  | 569 |  | (646) |  | -
Prepayments and other current assets |  | 3 |  | - |  | 478 |  | 842 |  | - |  | 1,323
Total current assets |  | 273 |  | 37 |  | 898 |  | 1,962 |  | (659) |  | 2,511
Property, plant and equipment, net of accumulated depreciation |  | 14 |  | - |  | 12,724 |  | 4,552 |  | - |  | 17,290
Other assets |  |  |  |  |  |  |  |  |  |  |  |
Deferred income taxes |  | 31 |  | - |  | 18 |  | 114 |  | (38) |  | 125
Derivative instruments |  | 12 |  | - |  | 2 |  | 129 |  | (12) |  | 131
Regulatory assets |  | - |  | - |  | 647 |  | 595 |  | - |  | 1,242
Net investment in direct financing lease |  | - |  | - |  | 13 |  | 475 |  | - |  | 488
Investments in subsidiaries accounted for using the equity method |  | 8,349 |  | - |  | - |  | - |  | (8,349) |  | -
Investments subject to significant influence |  | 5 |  | - |  | 13 |  | 929 |  | - |  | 947
Goodwill |  | - |  | - |  | 6,110 |  | 103 |  | - |  | 6,213
Intercompany notes receivable |  | 1,341 |  | 4,558 |  | 16 |  | 589 |  | (6,504) |  | -
Other investments - intercompany |  | - |  | - |  | - |  | 2,270 |  | (2,270) |  | -
Other long-term assets |  | 33 |  | - |  | 85 |  | 175 |  | (19) |  | 274
Total other assets |  | 9,771 |  | 4,558 |  | 6,904 |  | 5,379 |  | (17,192) |  | 9,420
Total assets | $ | 10,058 | $ | 4,595 | $ | 20,526 | $ | 11,893 | $ | (17,851) | $ | 29,221
Emera Incorporated
Condensed Consolidated Balance Sheets – Continued
As at December 31, 2016
|  | Parent | Subsidiary Issuer |  | Guarantor Subsidiaries | Non-guarantor Subsidiaries | Eliminations | Consolidated
millions of Canadian dollars |  |
Liabilities and Equity |  |  |  |  |  |  |  |  |  |  |  |
Current liabilities |  |  |  |  |  |  |  |  |  |  |  |
Short-term debt | $ | - | $ | - | $ | 948 | $ | 13 | $ | - | $ | 961
Current portion of long-term debt |  | - |  | - |  | 436 |  | 40 |  | - |  | 476
Accounts payable |  | 6 |  | - |  | 756 |  | 480 |  | - |  | 1,242
Intercompany payable |  | 534 |  | 6 |  | 81 |  | 25 |  | (646) |  | -
Derivative instruments |  | 14 |  | - |  | 10 |  | 314 |  | (13) |  | 325
Regulatory liabilities |  | - |  | - |  | 225 |  | 137 |  | - |  | 362
Other current liabilities |  | 54 |  | 13 |  | 130 |  | 161 |  | - |  | 358
Total current liabilities |  | 608 |  | 19 |  | 2,586 |  | 1,170 |  | (659) |  | 3,724
Long-term liabilities |  |  |  |  |  |  |  |  |  |  |  |
Long-term debt |  | 2,338 |  | 4,314 |  | 4,687 |  | 2,929 |  | - |  | 14,268
Intercompany long-term debt |  | 366 |  | - |  | 4,778 |  | 1,357 |  | (6,501) |  | -
Deferred income taxes |  | - |  | 1 |  | 1,193 |  | 516 |  | (38) |  | 1,672
Derivative instruments |  | 12 |  | - |  | - |  | 150 |  | (12) |  | 150
Regulatory liabilities |  | - |  | - |  | 973 |  | 304 |  | - |  | 1,277
Pension and post-retirement liabilities |  | 17 |  | - |  | 433 |  | 219 |  | - |  | 669
Other long-term liabilities |  | 13 |  | - |  | 274 |  | 377 |  | (19) |  | 645
Total long-term liabilities |  | 2,746 |  | 4,315 |  | 12,338 |  | 5,852 |  | (6,570) |  | 18,681
Equity |  |  |  |  |  |  |  |  |  |  |  |
Common stock |  | 4,738 |  | 242 |  | 4,177 |  | 3,997 |  | (8,416) |  | 4,738
Cumulative preferred stock |  | 709 |  | - |  | 620 |  | 271 |  | (891) |  | 709
Contributed surplus |  | 75 |  | - |  | 45 |  | 106 |  | (151) |  | 75
Accumulated other comprehensive income (loss) |  | 106 |  | 10 |  | 340 |  | (191) |  | (159) |  | 106
Retained earnings |  | 1,076 |  | 9 |  | 420 |  | 610 |  | (1,039) |  | 1,076
Total Emera Incorporated equity |  | 6,704 |  | 261 |  | 5,602 |  | 4,793 |  | (10,656) |  | 6,704
Non-controlling interest in subsidiaries |  | - |  | - |  | - |  | 78 |  | 34 |  | 112
Total equity |  | 6,704 |  | 261 |  | 5,602 |  | 4,871 |  | (10,622) |  | 6,816
Total liabilities and equity | $ | 10,058 | $ | 4,595 | $ | 20,526 | $ | 11,893 | $ | (17,851) | $ | 29,221
Condensed Cash Flow Statement [Table Text Block] |
Emera Incorporated |  |  |  |  |  |  |  |  |  |  |  |
Condensed Consolidated Statements of Cash Flows
For the year ended December 31, 2017
|  | Parent | Subsidiary Issuer |  | Guarantor Subsidiaries | Non-guarantor Subsidiaries | Eliminations | Consolidated
millions of Canadian dollars |  |
Net cash provided by (used in) by operating activities | $ | 195 | $ | 22 | $ | 712 | $ | 1,125 | $ | (861) | $ | 1,193
Investing activities |  |  |  |  |  |  |  |  |  |  |  |
Additions to property, plant and equipment |  | (5) |  | - |  | (1,031) |  | (480) |  | (13) |  | (1,529)
Net purchase of investments subject to significant influence, inclusive of acquisition costs |  | - |  | - |  | - |  | (213) |  | - |  | (213)
Other intercompany investing activities |  | (708) |  | (26) |  | 15 |  | 1,818 |  | (1,099) |  | -
Other investing activities |  | (34) |  | - |  | (20) |  | 32 |  | 3 |  | (19)
Net cash provided by (used in) investing activities |  | (747) |  | (26) |  | (1,036) |  | 1,157 |  | (1,109) |  | (1,761)
Financing activities |  |  |  |  |  |  |  |  |  |  |  |
Change in short-term debt, net |  | - |  | - |  | 365 |  | (13) |  | - |  | 352
Proceeds from long-term debt, net of issuance costs |  | - |  | - |  | 147 |  | (131) |  | 113 |  | 129
Retirement of long-term debt |  | - |  | - |  | (413) |  | (55) |  | 15 |  | (453)
Net borrowings (repayments) under committed credit facilities |  | (30) |  | - |  | 21 |  | 233 |  | 6 |  | 230
Issuance of common stock, net of issuance costs |  | 682 |  | - |  | 134 |  | (1,837) |  | 1,703 |  | 682
Issuance of preferred stock, net of issuance costs |  | - |  | - |  | - |  | (195) |  | 195 |  | -
Dividends on common stock |  | (287) |  | - |  | - |  | (272) |  | 272 |  | (287)
Dividends on preferred stock |  | (28) |  | - |  | (29) |  | (13) |  | 42 |  | (28)
Dividends paid by subsidiaries to non-controlling interest |  | - |  | - |  | - |  | (2) |  | (4) |  | (6)
Other financing activities |  | 290 |  | - |  | 96 |  | (40) |  | (372) |  | (26)
Net cash provided by (used in) financing activities |  | 627 |  | - |  | 321 |  | (2,325) |  | 1,970 |  | 593
Effect of exchange rate changes on cash and cash equivalents |  | 1 |  | (3) |  | 2 |  | (13) |  | - |  | (13)
Net increase (decrease) in cash and cash equivalents |  | 76 |  | (7) |  | (1) |  | (56) |  | - |  | 12
Cash, cash equivalents and restricted cash, beginning of year |  | 200 |  | 28 |  | 49 |  | 214 |  | - |  | 491
Cash, cash equivalents and restricted cash, end of year | $ | 276 | $ | 21 | $ | 48 | $ | 158 | $ | - | $ | 503
Emera Incorporated |  |  |  |  |  |  |  |  |  |  |  |
Condensed Consolidated Statements of Cash Flows
For the year ended December 31, 2016
|  | Parent | Subsidiary Issuer |  | Guarantor Subsidiaries | Non-guarantor Subsidiaries | Eliminations | Consolidated
millions of Canadian dollars |  |
Net cash provided by (used in) operating activities | $ | 265 | $ | 29 | $ | 481 | $ | 107 | $ | 171 | $ | 1,053
Investing activities |  |  |  |  |  |  |  |  |  |  |  |
Acquisitions, net of cash acquired |  | - |  | - |  | (8,409) |  | - |  | - |  | (8,409)
Additions to property, plant and equipment |  | (2) |  | - |  | (673) |  | (405) |  | - |  | (1,080)
Net purchase of investments subject to significant influence, inclusive of acquisition costs |  | - |  | - |  | - |  | (276) |  | - |  | (276)
Net proceeds on sale of investment subject to significant influence and held-for-trading common shares |  | 665 |  | - |  | - |  | - |  | - |  | 665
Other intercompany investing activities |  | (2,348) |  | (4,416) |  | (18) |  | (2,397) |  | 9,179 |  | -
Other investing activities |  | - |  | - |  | (3) |  | 66 |  | - |  | 63
Net cash provided by (used in) investing activities |  | (1,685) |  | (4,416) |  | (9,103) |  | (3,012) |  | 9,179 |  | (9,037)
Financing activities |  |  |  |  |  |  |  |  |  |  |  |
Change in short-term debt, net |  | (14) |  | - |  | 122 |  | (4) |  | 14 |  | 118
Proceeds from long-term debt, net of issuance costs |  | 2,037 |  | 4,187 |  | 4,516 |  | 764 |  | (5,081) |  | 6,423
Proceeds from convertible debentures represented by instalment receipts, net of issuance costs |  | (44) |  | - |  | - |  | 1,457 |  | - |  | 1,413
Retirement of long-term debt |  | (250) |  | - |  | (6) |  | (36) |  | 19 |  | (273)
Net borrowings (repayments) under committed credit facilities |  | (210) |  | - |  | - |  | (99) |  | (6) |  | (315)
Issuance of common stock, net of issuance costs |  | 354 |  | 242 |  | 3,865 |  | 95 |  | (4,202) |  | 354
Issuance of preferred stock, net of issuance costs |  | - |  | - |  | 195 |  | - |  | (195) |  | -
Dividends on common stock |  | (221) |  | - |  | - |  | (254) |  | 254 |  | (221)
Dividends on preferred stock |  | (28) |  | - |  | (31) |  | (18) |  | 49 |  | (28)
Dividends paid by subsidiaries to non-controlling interest |  | - |  | - |  | - |  | (2) |  | (3) |  | (5)
Other financing activities |  | - |  | - |  | (18) |  | 185 |  | (185) |  | (18)
Net cash provided by (used in) financing activities |  | 1,624 |  | 4,429 |  | 8,643 |  | 2,088 |  | (9,336) |  | 7,448
Effect of exchange rate changes on cash and cash equivalents |  | (4) |  | (14) |  | 7 |  | (54) |  | - |  | (65)
Net increase (decrease) in cash and cash equivalents |  | 200 |  | 28 |  | 28 |  | (871) |  | 14 |  | (601)
Cash, cash equivalents and restricted cash, beginning of year |  | - |  | - |  | 21 |  | 1,085 |  | (14) |  | 1,092
Cash, cash equivalents and restricted cash, end of year | $ | 200 | $ | 28 | $ | 49 | $ | 214 | $ | - | $ | 491

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- References No definition available. + Details
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Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

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