Consolidated Balance Sheets (USD $) In Thousands, unless otherwise specified	Mar. 31, 2015	Dec. 31, 2014
Assets
Property, plant and equipment, at cost	$ 5,764,467	$ 5,707,017
Less: accumulated depreciation	1,331,323	1,305,027
Net property, plant and equipment	4,433,144	4,401,990
Current assets:
Cash and cash equivalents	9,274	4,138
Accounts receivable and unbilled revenues, net	95,405	96,999
Deferred income taxes	35,202	26,849
Inventory, materials and supplies	12,591	12,788
Prepayments and other current assets, net	11,753	11,748
Total current assets	164,225	152,522
Regulatory assets	748,911	725,591
Deferred charges and other assets, net	54,864	52,084
Investment in joint venture	42,619	43,334
Funds restricted for construction activity	15	47
Goodwill	33,954	31,184
Total assets	5,477,732	5,406,752
Aqua America stockholders' equity:
Common stock at $.50 par value, authorized 300,000,000 shares, issued 179,041,925 and 178,591,254 as of March 31, 2015 and December 31, 2014	89,521	89,296
Capital in excess of par value	763,259	758,145
Retained earnings	869,203	849,952
Treasury stock, at cost,1,978,968 and 1,837,984 shares as of March 31, 2015 and December 31, 2014	(46,592)	(42,838)
Accumulated other comprehensive income	863	788
Total Aqua America stockholders' equity	1,676,254	1,655,343
Noncontrolling interest	40	40
Total equity	1,676,294	1,655,383
Long-term debt, excluding current portion	1,594,980	1,560,655
Commitments and contingencies (See Note 13)
Current liabilities:
Current portion of long-term debt	47,042	58,615
Loans payable	33,062	18,398
Accounts payable	34,717	63,035
Accrued interest	20,477	12,437
Accrued taxes	31,653	31,462
Other accrued liabilities	38,168	41,388
Total current liabilities	205,119	225,335
Deferred credits and other liabilities:
Deferred income taxes and investment tax credits	1,041,418	1,000,791
Customers' advances for construction	75,833	78,301
Regulatory liabilities	273,873	278,317
Other	106,279	109,692
Total deferred credits and other liabilities	1,497,403	1,467,101
Contributions in aid of construction	503,936	498,278
Total liabilities and equity	$ 5,477,732	$ 5,406,752