XML 79 R45.htm IDEA: XBRL DOCUMENT
v3.8.0.1

Retirement benefits (Tables) | 12 Months Ended
--- | ---
Dec. 31, 2017
Compensation and Retirement Disclosure [Abstract] |
Schedule of changes in the obligations and assets of the Company's retirement benefit plans and the changes in AOCI (gross) and the funded status | The changes in the obligations and assets of the Company’s and Utilities' retirement benefit plans and the changes in AOCI (gross) for 2017 and 2016 and the funded status of these plans and amounts related to these plans reflected in the Company’s and Utilities' consolidated balance sheet as of December 31, 2017 and 2016 were as follows:
| 2017 |  | 2016
(in thousands) | Pension benefits |  | Other benefits |  | Pension benefits |  | Other benefits
HEI consolidated |  |  |  |  |  |  |
Benefit obligation, January 1 | $ | 1,935,494 |  |  | $ | 233,835 |  |  | $ | 1,798,030 |  |  | $ | 221,540 |
Service cost | 64,906 |  |  | 3,374 |  |  | 60,555 |  |  | 3,331 |
Interest cost | 81,185 |  |  | 9,453 |  |  | 81,549 |  |  | 9,670 |
Actuarial losses (gains) | 87,399 |  |  | (25,557 | ) |  | 67,741 |  |  | 7,831 |
Participants contributions | — |  |  | 2,078 |  |  | — |  |  | 1,405 |
Benefits paid and expenses | (74,628 | ) |  | (10,582 | ) |  | (72,381 | ) |  | (9,942 | )
Benefit obligation, December 31 | 2,094,356 |  |  | 212,601 |  |  | 1,935,494 |  |  | 233,835 |
Fair value of plan assets, January 1 | 1,369,701 |  |  | 174,251 |  |  | 1,271,474 |  |  | 170,687 |
Actual return on plan assets | 255,324 |  |  | 28,248 |  |  | 103,836 |  |  | 11,352 |
Employer contributions | 66,983 |  |  | — |  |  | 65,463 |  |  | 42 |
Participants contributions | — |  |  | 2,078 |  |  | — |  |  | 1,405 |
Benefits paid and expenses | (73,305 | ) |  | (10,582 | ) |  | (71,072 | ) |  | (9,235 | )
Fair value of plan assets, December 31 | 1,618,703 |  |  | 193,995 |  |  | 1,369,701 |  |  | 174,251 |
Accrued benefit asset (liability), December 31 | $ | (475,653 | ) |  | $ | (18,606 | ) |  | $ | (565,793 | ) |  | $ | (59,584 | )
Other assets | $ | 15,443 |  |  | $ | — |  |  | $ | 13,477 |  |  | $ | — |
Defined benefit pension and other postretirement benefit plans liability | (491,096 | ) |  | (18,606 | ) |  | (579,270 | ) |  | (59,584 | )
Accrued benefit asset (liability), December 31 | $ | (475,653 | ) |  | $ | (18,606 | ) |  | $ | (565,793 | ) |  | $ | (59,584 | )
AOCI debit, January 1 (excluding impact of PUC D&Os) | $ | 619,451 |  |  | $ | 42,290 |  |  | $ | 581,763 |  |  | $ | 32,550 |
Recognized during year – prior service credit | 55 |  |  | 1,793 |  |  | 57 |  |  | 1,793 |
Recognized during year – net actuarial losses | (26,496 | ) |  | (1,130 | ) |  | (24,832 | ) |  | (804 | )
Occurring during year – net actuarial losses (gains) | (65,180 | ) |  | (41,479 | ) |  | 62,463 |  |  | 8,751 |
AOCI debit before cumulative impact of PUC D&Os, December 31 | 527,830 |  |  | 1,474 |  |  | 619,451 |  |  | 42,290 |
Cumulative impact of PUC D&Os | (489,894 | ) |  | (2,767 | ) |  | (576,933 | ) |  | (43,974 | )
AOCI debit/(credit), December 31 | $ | 37,936 |  |  | $ | (1,293 | ) |  | $ | 42,518 |  |  | $ | (1,684 | )
Net actuarial loss | $ | 527,907 |  |  | $ | 10,183 |  |  | $ | 619,582 |  |  | $ | 52,792 |
Prior service gain | (77 | ) |  | (8,709 | ) |  | (131 | ) |  | (10,502 | )
AOCI debit before cumulative impact of PUC D&Os, December 31 | 527,830 |  |  | 1,474 |  |  | 619,451 |  |  | 42,290 |
Cumulative impact of PUC D&Os | (489,894 | ) |  | (2,767 | ) |  | (576,933 | ) |  | (43,974 | )
AOCI debit/(credit), December 31 | 37,936 |  |  | (1,293 | ) |  | 42,518 |  |  | (1,684 | )
Income taxes (benefits) | (9,986 | ) |  | 333 |  |  | (16,746 | ) |  | 656 |
AOCI debit/(credit), net of taxes (benefits), December 31 | $ | 27,950 |  |  | $ | (960 | ) |  | $ | 25,772 |  |  | $ | (1,028 | )
As of December 31, 2017 and 2016, the other postretirement benefit plans shown in the table above had ABOs in excess of plan assets.
| 2017 |  | 2016
(in thousands) | Pension benefits |  | Other benefits |  | Pension benefits |  | Other benefits
Hawaiian Electric consolidated |  |  |  |  |  |  |
Benefit obligation, January 1 | $ | 1,779,626 |  |  | $ | 225,723 |  |  | $ | 1,649,690 |  |  | $ | 213,990 |
Service cost | 63,059 |  |  | 3,353 |  |  | 58,796 |  |  | 3,284 |
Interest cost | 74,632 |  |  | 9,115 |  |  | 74,808 |  |  | 9,337 |
Actuarial losses (gains) | 80,186 |  |  | (25,172 | ) |  | 63,121 |  |  | 7,545 |
Participants contributions | — |  |  | 2,047 |  |  | — |  |  | 1,389 |
Benefits paid and expenses | (68,691 | ) |  | (10,419 | ) |  | (66,789 | ) |  | (9,822 | )
Transfers | (164 | ) |  | (3 | ) |  | — |  |  | — |
Benefit obligation, December 31 | 1,928,648 |  |  | 204,644 |  |  | 1,779,626 |  |  | 225,723 |
Fair value of plan assets, January 1 | 1,233,184 |  |  | 171,383 |  |  | 1,141,833 |  |  | 167,930 |
Actual return on plan assets | 237,830 |  |  | 27,806 |  |  | 93,441 |  |  | 11,168 |
Employer contributions | 65,669 |  |  | — |  |  | 64,236 |  |  | 11 |
Participants contributions | — |  |  | 2,047 |  |  | — |  |  | 1,389 |
Benefits paid and expenses | (68,225 | ) |  | (10,419 | ) |  | (66,326 | ) |  | (9,115 | )
Other | (55 | ) |  | (3 | ) |  | — |  |  | — |
Fair value of plan assets, December 31 | 1,468,403 |  |  | 190,814 |  |  | 1,233,184 |  |  | 171,383 |
Accrued benefit liability, December 31 | $ | (460,245 | ) |  | $ | (13,830 | ) |  | $ | (546,442 | ) |  | $ | (54,340 | )
Other liabilities (short-term) | (494 | ) |  | (633 | ) |  | (460 | ) |  | (596 | )
Defined benefit pension and other postretirement benefit plans liability | (459,751 | ) |  | (13,197 | ) |  | (545,982 | ) |  | (53,744 | )
Accrued benefit liability, December 31 | $ | (460,245 | ) |  | $ | (13,830 | ) |  | $ | (546,442 | ) |  | $ | (54,340 | )
AOCI debit, January 1 (excluding impact of PUC D&Os) | $ | 579,725 |  |  | $ | 40,967 |  |  | $ | 541,118 |  |  | $ | 31,485 |
Recognized during year – prior service credit (cost) | (8 | ) |  | 1,804 |  |  | (13 | ) |  | 1,803 |
Recognized during year – net actuarial losses | (24,392 | ) |  | (1,102 | ) |  | (22,693 | ) |  | (793 | )
Occurring during year – net actuarial losses (gains) | (61,861 | ) |  | (40,830 | ) |  | 61,313 |  |  | 8,472 |
AOCI debit before cumulative impact of PUC D&Os, December 31 | 493,464 |  |  | 839 |  |  | 579,725 |  |  | 40,967 |
Cumulative impact of PUC D&Os | (489,894 | ) |  | (2,767 | ) |  | (576,933 | ) |  | (43,974 | )
AOCI debit/(credit), December 31 | $ | 3,570 |  |  | $ | (1,928 | ) |  | $ | 2,792 |  |  | $ | (3,007 | )
Net actuarial loss | $ | 493,439 |  |  | $ | 9,531 |  |  | $ | 579,691 |  |  | $ | 51,463 |
Prior service cost (gain) | 25 |  |  | (8,692 | ) |  | 34 |  |  | (10,496 | )
AOCI debit before cumulative impact of PUC D&Os, December 31 | 493,464 |  |  | 839 |  |  | 579,725 |  |  | 40,967 |
Cumulative impact of PUC D&Os | (489,894 | ) |  | (2,767 | ) |  | (576,933 | ) |  | (43,974 | )
AOCI debit/(credit), December 31 | 3,570 |  |  | (1,928 | ) |  | 2,792 |  |  | (3,007 | )
Income taxes (benefits) | (920 | ) |  | 497 |  |  | (1,087 | ) |  | 1,170 |
AOCI debit/(credit), net of taxes (benefits), December 31 | $ | 2,650 |  |  | $ | (1,431 | ) |  | $ | 1,705 |  |  | $ | (1,837 | )
Schedule of weighted-average asset allocation of defined benefit retirement plans | The asset allocation of defined benefit retirement plans to equity and fixed income securities and related investment policy targets and ranges were as follows:
| Pension benefits 1 |  | Other benefits 2
|  |  |  |  | Investment policy |  |  |  |  |  | Investment policy
December 31 | 2017 |  |  | 2016 |  |  | Target |  |  | Range |  | 2017 |  |  | 2016 |  |  | Target |  |  | Range
Assets held by category |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Equity securities | 73 | % |  | 71 | % |  | 70 | % |  | 65-75 |  | 73 | % |  | 70 | % |  | 70 | % |  | 65-75
Fixed income securities | 27 |  |  | 29 |  |  | 30 |  |  | 25-35 |  | 27 |  |  | 30 |  |  | 30 |  |  | 25-35
| 100 | % |  | 100 | % |  | 100 | % |  |  |  | 100 | % |  | 100 | % |  | 100 | % |  |
1 | Asset allocation is applicable to only HEI and the Utilities. As of December 31, 2017 and 2016, nearly all of ASB's pension assets were invested in fixed income securities.
2 | Asset allocation is applicable to only HEI and the Utilities. ASB does not fund its other benefits.
Schedule of assets held in various trusts are measured at fair value on a recurring basis | Assets held in various trusts for the retirement benefit plans are measured at fair value on a recurring basis and were as follows:
| Pension benefits |  | Other benefits
|  |  | Fair value measurements using |  |  |  | Fair value measurements using
(in millions) | December 31 |  | Quoted prices in active markets for identical assets (Level 1) |  | Significant other observable inputs (Level 2) |  | Significant unobservable inputs (Level 3) |  | December 31 |  | Level 1 |  | Level 2 |  | Level 3
2017 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Equity securities | $ | 568 |  |  | $ | 568 |  |  | $ | — |  |  | $ | — |  |  | $ | 75 |  |  | $ | 75 |  |  | $ | — |  |  | $ | — |
Equity index funds | 435 |  |  | 435 |  |  | — |  |  | — |  |  | 52 |  |  | 52 |  |  | — |  |  | — |
Equity investments at net asset value (NAV) | 76 |  |  | — |  |  | — |  |  | — |  |  | 12 |  |  | — |  |  | — |  |  | — |
Total equity investments | 1,079 |  |  | 1,003 |  |  | — |  |  | — |  |  | 139 |  |  | 127 |  |  | — |  |  | — |
Fixed income securities and public mutual funds | 297 |  |  | 81 |  |  | 216 |  |  | — |  |  | 46 |  |  | 43 |  |  | 3 |  |  | — |
Fixed income investments at NAV | 203 |  |  | — |  |  | — |  |  | — |  |  | 4 |  |  | — |  |  | — |  |  | — |
Total fixed income investments | 500 |  |  | 81 |  |  | 216 |  |  | — |  |  | 50 |  |  | 43 |  |  | 3 |  |  | — |
Cash equivalents at NAV | 36 |  |  | — |  |  | — |  |  | — |  |  | 5 |  |  | — |  |  | — |  |  | — |
Total | $ | 1,615 |  |  | $ | 1,084 |  |  | $ | 216 |  |  | $ | — |  |  | $ | 194 |  |  | $ | 170 |  |  | $ | 3 |  |  | $ | — |
Cash, receivables and payables, net | 4 |  |  |  |  |  |  |  |  |  |  |  | — |  |  |  |  |  |  |  |  |  |
Fair value of plan assets | $ | 1,619 |  |  |  |  |  |  |  |  |  |  |  | $ | 194 |  |  |  |  |  |  |  |  |  |
2016 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Equity securities | $ | 692 |  |  | $ | 692 |  |  | $ | — |  |  | $ | — |  |  | $ | 94 |  |  | $ | 94 |  |  | $ | — |  |  | $ | — |
Equity index funds | 129 |  |  | 129 |  |  | — |  |  | — |  |  | 17 |  |  | 17 |  |  | — |  |  | — |
Equity investments at NAV | 56 |  |  | — |  |  | — |  |  | — |  |  | 9 |  |  | — |  |  | — |  |  | — |
Total equity investments | 877 |  |  | 821 |  |  | — |  |  | — |  |  | 120 |  |  | 111 |  |  | — |  |  | — |
Fixed income securities and public mutual funds | 276 |  |  | 84 |  |  | 192 |  |  | — |  |  | 44 |  |  | 42 |  |  | 2 |  |  | — |
Fixed income investments at NAV | 180 |  |  | — |  |  | — |  |  | — |  |  | 4 |  |  | — |  |  | — |  |  | — |
Total fixed income investments | 456 |  |  | 84 |  |  | 192 |  |  | — |  |  | 48 |  |  | 42 |  |  | 2 |  |  | — |
Cash equivalents at NAV | 33 |  |  | — |  |  | — |  |  | — |  |  | 6 |  |  | — |  |  | — |  |  | — |
Total | 1,366 |  |  | $ | 905 |  |  | $ | 192 |  |  | $ | — |  |  | 174 |  |  | $ | 153 |  |  | $ | 2 |  |  | $ | — |
Cash, receivables and payables, net | 4 |  |  |  |  |  |  |  |  |  |  |  | — |  |  |  |  |  |  |  |  |  |
Fair value of plan assets | $ | 1,370 |  |  |  |  |  |  |  |  |  |  |  | $ | 174 |  |  |  |  |  |  |  |  |  |
| Pension benefits |  | Other benefits
Measured at net asset value | December 31 |  |  | Redemption frequency |  | Redemption notice period |  | December 31 |  |  | Redemption frequency |  | Redemption notice period
(in millions) |  |  |  |  |  |  |  |  |  |  |
2017 |  |  |  |  |  |  |  |  |  |  |
Non U.S. equity funds (a) | 76 |  |  | Daily-Monthly |  | 5 - 30 days |  | 12 |  |  | Daily-Monthly |  | 5-30 days
Fixed income investments (b) | 203 |  |  | Monthly |  | 15 days |  | 4 |  |  | Monthly |  | 15 days
Cash equivalents (c) | 36 |  |  | Daily |  | 0-1 day |  | 5 |  |  | Daily |  | 0-1 day
| $ | 315 |  |  |  |  |  |  | $ | 21 |  |  |  |  |
2016 |  |  |  |  |  |  |  |  |  |  |
Non U.S. equity funds (a) | 56 |  |  | Daily - Quarterly |  | 0 - 30 days |  | 9 |  |  | Monthly - Quarterly |  | 10-30 days
Fixed income investments (b) | 180 |  |  | Monthly |  | 10 days |  | 4 |  |  | Monthly |  | 10 days
Cash equivalents (c) | 33 |  |  | Daily |  | 0-1 day |  | 6 |  |  | Daily |  | 0-1 day
| $ | 269 |  |  |  |  |  |  | $ | 19 |  |  |  |  |
None of the investments presented in the tables above have unfunded commitments.
(a) | Represents investments in funds that primarily invest in non-U.S., emerging markets equities. Redemption frequency for pension benefits assets as of December 31, 2017 were: daily, 32% and monthly, 68% and as of December 31, 2016 were: daily, 31%; monthly, 31%; and quarterly, 38%. Redemption frequency for other benefits assets as of December 31, 2017 were: daily, 26% and monthly, 74% and as of December 31, 2016 were: monthly, 57%; and quarterly, 42%.
(b ) | Represents investments in fixed income securities invested in a US-dollar denominated fund that seeks to exceed the Barclays Capital Long Corporate A or better Index through investments in US-dollar denominated fixed income securities and commingled vehicles.
(c) | Represents investments in cash equivalent funds. This class includes funds that invest primarily in securities issued or guaranteed by the U.S. government or its agencies or instrumentalities. For pension benefits, the fund may also invest in fixed income securities of investment grade issuers
Schedule of weighted-average assumptions used in accounting for plans | The following weighted-average assumptions were used in the accounting for the plans:
| Pension benefits |  | Other benefits
December 31 | 2017 |  | 2016 |  | 2015 |  | 2017 |  | 2016 |  | 2015
Benefit obligation |  |  |  |  |  |  |  |  |  |  |
Discount rate | 3.74 | % |  | 4.26 | % |  | 4.60 | % |  | 3.72 | % |  | 4.22 | % |  | 4.57 | %
Rate of compensation increase | 3.5 |  |  | 3.5 |  |  | 3.5 |  |  | NA |  |  | NA |  |  | NA |
Net periodic pension/benefit cost (years ended) |  |  |  |  |  |  |  |  |  |  |
Discount rate | 4.26 |  |  | 4.60 |  |  | 4.22 |  |  | 4.22 |  |  | 4.57 |  |  | 4.17 |
Expected return on plan assets 1 | 7.50 |  |  | 7.75 |  |  | 7.75 |  |  | 7.50 |  |  | 7.75 |  |  | 7.75 |
Rate of compensation increase 2 | 3.5 |  |  | 3.5 |  |  | 3.5 |  |  | NA |  |  | NA |  |  | NA |
NA Not applicable 1 For 2017 and 2016, HEI's and Utilities' plan assets only. For 2017 and 2016, ASB's expected return on plan assets was 4.46% and 4.80%, respectively. 2 The Company and the Utilities use a graded rate of compensation increase assumption based on age. The rate provided above is an average across all future years of service for the current population.
Schedule of components of net periodic benefit cost for consolidated HEI | The components of NPPC and NPBC were as follows:
| Pension benefits |  | Other benefits
(in thousands) | 2017 |  | 2016 |  | 2015 |  | 2017 |  | 2016 |  | 2015
HEI consolidated |  |  |  |  |  |  |  |  |  |  |
Service cost | $ | 64,906 |  |  | $ | 60,555 |  |  | $ | 66,260 |  |  | $ | 3,374 |  |  | $ | 3,331 |  |  | $ | 3,927 |
Interest cost | 81,185 |  |  | 81,549 |  |  | 76,960 |  |  | 9,453 |  |  | 9,670 |  |  | 9,011 |
Expected return on plan assets | (102,745 | ) |  | (98,559 | ) |  | (88,554 | ) |  | (12,326 | ) |  | (12,273 | ) |  | (11,664 | )
Amortization of net prior service (gain) cost | (55 | ) |  | (57 | ) |  | 4 |  |  | (1,793 | ) |  | (1,793 | ) |  | (1,793 | )
Amortization of net actuarial losses | 26,496 |  |  | 24,832 |  |  | 36,800 |  |  | 1,130 |  |  | 804 |  |  | 1,796 |
Net periodic pension/benefit cost | 69,787 |  |  | 68,320 |  |  | 91,470 |  |  | (162 | ) |  | (261 | ) |  | 1,277 |
Impact of PUC D&Os | (18,004 | ) |  | (18,117 | ) |  | (40,011 | ) |  | 1,211 |  |  | 1,343 |  |  | (240 | )
Net periodic pension/benefit cost (adjusted for impact of PUC D&Os) | $ | 51,783 |  |  | $ | 50,203 |  |  | $ | 51,459 |  |  | $ | 1,049 |  |  | $ | 1,082 |  |  | $ | 1,037 |
Hawaiian Electric consolidated |  |  |  |  |  |  |  |  |  |  |
Service cost | $ | 63,059 |  |  | $ | 58,796 |  |  | $ | 64,262 |  |  | $ | 3,353 |  |  | $ | 3,284 |  |  | $ | 3,870 |
Interest cost | 74,632 |  |  | 74,808 |  |  | 70,529 |  |  | 9,115 |  |  | 9,337 |  |  | 8,700 |
Expected return on plan assets | (95,892 | ) |  | (91,633 | ) |  | (82,541 | ) |  | (12,147 | ) |  | (12,096 | ) |  | (11,495 | )
Amortization of net prior service (gain) cost | 8 |  |  | 13 |  |  | 40 |  |  | (1,804 | ) |  | (1,803 | ) |  | (1,804 | )
Amortization of net actuarial losses | 24,392 |  |  | 22,693 |  |  | 33,371 |  |  | 1,102 |  |  | 793 |  |  | 1,754 |
Net periodic pension/benefit cost | 66,199 |  |  | 64,677 |  |  | 85,661 |  |  | (381 | ) |  | (485 | ) |  | 1,025 |
Impact of PUC D&Os | (18,004 | ) |  | (18,117 | ) |  | (40,011 | ) |  | 1,211 |  |  | 1,343 |  |  | (240 | )
Net periodic pension/benefit cost (adjusted for impact of PUC D&Os) | $ | 48,195 |  |  | $ | 46,560 |  |  | $ | 45,650 |  |  | $ | 830 |  |  | $ | 858 |  |  | $ | 785 |
Schedule of amounts in accumulated other comprehensive Income (loss) to be recognized over next fiscal year | The estimated prior service credit and net actuarial loss for defined benefit plans that will be amortized from AOCI or regulatory assets into NPPC and NPBC during 2018 is as follows:
| HEI consolidated |  | Hawaiian Electric consolidated
(in millions) | Pension benefits |  | Other benefits |  | Pension benefits |  | Other benefits
Estimated prior service credit | $ | — |  |  | $ | (1.8 | ) |  | $ | — |  |  | $ | (1.8 | )
Net actuarial loss | 29.6 |  |  | — |  |  | 26.8 |  |  | — |
Schedule of projected benefit obligations and assets | Additional information on the defined benefit pension plans' accumulated benefit obligations (ABOs), which do not consider projected pay increases (unlike the PBOs shown in the table above), PBOs and assets were as follows:
| HEI consolidated |  | Hawaiian Electric consolidated
December 31 | 2017 |  | 2016 |  | 2017 |  | 2016
(in billions) |  |  |  |  |  |  |
Defined benefit plans - ABOs | $ | 1.8 |  |  | $ | 1.7 |  |  | $ | 1.7 |  |  | $ | 1.5 |
Defined benefit plans with ABO in excess of plan assets |  |  |  |  |  |  |
ABOs | 1.7 |  |  | 1.6 |  |  | 1.7 |  |  | 1.5 |
Plan assets | 1.5 |  |  | 1.3 |  |  | 1.5 |  |  | 1.2 |
Defined benefit plans with PBOs in excess of plan assets |  |  |  |  |  |  |
PBOs | 2.0 |  |  | 1.8 |  |  | 1.9 |  |  | 1.8 |
Plan assets | 1.5 |  |  | 1.3 |  |  | 1.5 |  |  | 1.2 |

X
- Definition -- None. No documentation exists for this element. -- + References No definition available. + Details
Name: | he_ScheduleOfChangesInProjectedBenefitObligationsAndChangesInFairValueOfPlanAssetsAndAmountsRecognizedInOtherComprehensiveIncomeLossAndNetFundedStatusTableTextBlock
Namespace Prefix: | he_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

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

X
- Definition Tabular disclosure of assets, including [financial] instruments measured at fair value that are classified in stockholders' equity, if any, by class that are measured at fair value on a recurring basis. The disclosures contemplated herein include the fair value measurements at the reporting date by the level within the fair value hierarchy in which the fair value measurements in their entirety fall, segregating fair value measurements using quoted prices in active markets for identical assets (Level 1), significant other observable inputs (Level 2), and significant unobservable inputs (Level 3). + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=66048111&loc=d3e19207-110258 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=66048111&loc=d3e19190-110258 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=66048111&loc=d3e19207-110258 + Details
Name: | us-gaap_FairValueAssetsMeasuredOnRecurringBasisTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of accumulated benefit obligations and fair values of plan assets of pension plans and/or other employee benefit plans where the accumulated benefit obligation exceeds the fair value of plan assets. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 3 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=65897934&loc=d3e2417-114920 + Details
Name: | us-gaap_ScheduleOfAccumulatedBenefitObligationsInExcessOfFairValueOfPlanAssetsTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of the major categories of plan assets of pension plans and/or other employee benefit plans. This information may include, but is not limited to, the target allocation of plan assets, the fair value of each major category of plan assets, and the level within the fair value hierarchy in which the fair value measurements fall. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (d)(5) -URI http://asc.fasb.org/extlink&oid=65897934&loc=d3e1928-114920 + Details
Name: | us-gaap_ScheduleOfAllocationOfPlanAssetsTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of the amounts related to pension plans and/or other employee benefit plans in accumulated other comprehensive income (loss) expected to be recognized as components of net periodic benefit cost over the next fiscal year, including the net gain (loss), net prior service cost or credit, and net transition asset or obligation. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (s) -URI http://asc.fasb.org/extlink&oid=65897934&loc=d3e1928-114920 + Details
Name: | us-gaap_ScheduleOfAmountsInAccumulatedOtherComprehensiveIncomeLossToBeRecognizedOverNextFiscalYearTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of the assumptions used to determine for pension plans and/or other employee benefit plans the benefit obligation and net benefit cost, including assumed discount rates, rate increase in compensation increase, and expected long-term rates of return on plan assets. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (k) -URI http://asc.fasb.org/extlink&oid=65897934&loc=d3e1928-114920 + Details
Name: | us-gaap_ScheduleOfAssumptionsUsedTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of the components of net benefit costs for pension plans and/or other employee benefit plans including service cost, interest cost, expected return on plan assets, gain (loss), prior service cost or credit, transition asset or obligation, and gain (loss) recognized due to settlements or curtailments. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (h) -URI http://asc.fasb.org/extlink&oid=65897934&loc=d3e1928-114920 + Details
Name: | us-gaap_ScheduleOfNetBenefitCostsTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration