Rate and Regulatory Matters	3 Months Ended
Mar. 31, 2019
Regulated Operations [Abstract]
Rate and Regulatory Matters	Note 2 – Rate and Regulatory Matters Middlesex – In December 2018, the New Jersey Board of Public Utilities (the NJBPU) approved Middlesex’s petition to establish its Purchased Water Adjustment Clause (PWAC) tariff rate to recover additional annual costs of less than $0.1 million, primarily for the purchase of treated water from a non-affiliated water utility regulated by the NJBPU. A PWAC is a rate mechanism that allows for recovery of increased purchased water costs between base rate case filings. The PWAC is reset to zero once those increased costs are included in base rates. The PWAC tariff rate became effective on January 1, 2019. Tidewater - Effective January 1, 2019, Tidewater reset its Delaware Public Service Commission (the DEPSC) approved Distribution System Improvement Charge rate, which is expected to generate revenues of approximately $0.2 million annually. In February 2019, Tidewater received approval from the DEPSC to reduce its rates, effective March 1, 2019, to reflect the lower corporate income tax rate enacted by the Tax Cuts and Jobs Act of 2017 (the Tax Act), resulting in an overall rate decrease of 3.35%, or $1.0 million of revenues, on an annual basis. The DEPSC also approved a one-time credit of $0.7 million to customers’ accounts related to the lower corporate income tax rate. Pinelands - In March 2019, Pinelands Water and Pinelands Wastewater filed separate petitions with the NJBPU seeking permission to increase base rates by approximately $0.2 million and $0.5 million per year, respectively. These requests were necessitated by capital infrastructure investments both companies have made, or have committed to make, and increased operations and maintenance costs. We cannot predict whether the NJBPU will ultimately approve, deny, or reduce the amount of the requests. A decision by the NJBPU in either matter is not expected before the fourth quarter of 2019.

Rate and Regulatory Matters

3 Months Ended

Mar. 31, 2019

Note 2 – Rate and Regulatory Matters

Middlesex – In December 2018, the New Jersey Board of Public Utilities (the NJBPU) approved Middlesex’s petition to establish its Purchased Water Adjustment Clause (PWAC) tariff rate to recover additional annual costs of less than $0.1 million, primarily for the purchase of treated water from a non-affiliated water utility regulated by the NJBPU. A PWAC is a rate mechanism that allows for recovery of increased purchased water costs between base rate case filings. The PWAC is reset to zero once those increased costs are included in base rates. The PWAC tariff rate became effective on January 1, 2019.

Tidewater - Effective January 1, 2019, Tidewater reset its Delaware Public Service Commission (the DEPSC) approved Distribution System Improvement Charge rate, which is expected to generate revenues of approximately $0.2 million annually.

In February 2019, Tidewater received approval from the DEPSC to reduce its rates, effective March 1, 2019, to reflect the lower corporate income tax rate enacted by the Tax Cuts and Jobs Act of 2017 (the Tax Act), resulting in an overall rate decrease of 3.35%, or $1.0 million of revenues, on an annual basis. The DEPSC also approved a one-time credit of $0.7 million to customers’ accounts related to the lower corporate income tax rate.

Pinelands - In March 2019, Pinelands Water and Pinelands Wastewater filed separate petitions with the NJBPU seeking permission to increase base rates by approximately $0.2 million and $0.5 million per year, respectively. These requests were necessitated by capital infrastructure investments both companies have made, or have committed to make, and increased operations and maintenance costs. We cannot predict whether the NJBPU will ultimately approve, deny, or reduce the amount of the requests. A decision by the NJBPU in either matter is not expected before the fourth quarter of 2019.