|
Short-term and Long-term Borrowings (Details) (Revolving Credit Facility, USD $)
In Millions, unless otherwise specified
|
0 Months Ended |
3 Months Ended |
|
|
|
Mar. 10, 2015
|
Mar. 31, 2015
|
Dec. 31, 2014
|
Mar. 31, 2014
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| Short-term borrowings |
|
|
|
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| Maximum borrowing capacity |
$ 450 |
|
|
|
| Debt maturity period |
5 years |
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|
|
LIBOR
|
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| Short-term borrowings |
|
|
|
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| Basis of interest rate |
|
LIBOR |
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|
|
Minimum
|
|
|
|
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| Short-term borrowings |
|
|
|
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| Commitment fee (as a percent) |
|
0.08% |
|
|
|
Minimum | LIBOR
|
|
|
|
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| Short-term borrowings |
|
|
|
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| Interest rate margin (as a percent) |
|
0.725% |
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|
|
Maximum
|
|
|
|
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| Short-term borrowings |
|
|
|
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| Commitment fee (as a percent) |
|
0.125% |
|
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|
Maximum | LIBOR
|
|
|
|
|
| Short-term borrowings |
|
|
|
|
| Interest rate margin (as a percent) |
|
0.95% |
|
|
| Parent Company |
|
|
|
|
| Short-term borrowings |
|
|
|
|
| Maximum borrowing capacity |
150 |
|
|
|
| Amount outstanding under line of credit |
|
61.7 |
61.7 |
|
| Average borrowing rate (as a percent) |
|
1.09% |
|
1.31% |
| Cal Water |
|
|
|
|
| Short-term borrowings |
|
|
|
|
| Maximum borrowing capacity |
300 |
|
|
|
| Period within which borrowings are to be repaid |
12 months |
|
|
|
| Additional capacity available |
|
50 |
|
|
| Amount outstanding under line of credit |
|
47.4 |
$ 17.4 |
|
| Average borrowing rate (as a percent) |
|
1.09% |
|
1.31% |