Military Privatization (Notes)	9 Months Ended
Sep. 30, 2014
Military Privatization [Abstract]
Military Privatization	Military Privatization: The 50-year contracts with the U.S. government to operate, maintain and perform construction activities on the water and/or wastewater systems at various military bases are subject to periodic price redeterminations and modifications for changes in circumstances. ASUS has experienced delays in redetermining prices as required by the terms of these contracts. As a result, price redeterminations, when finally approved, can be retrospective and prospective. In September 2014, the U.S. government approved price redeterminations related to the operations at Fort Bragg, Fort Jackson and Andrews Air Force Base. ASUS received contract modifications from the U.S. government for these price redeterminations, which included retroactive operation and maintenance management fees and retroactive renewal and replacement fees for prior periods. Revenues from operation and maintenance management fees are recognized when services are rendered. Accordingly, ASUS recorded approximately $2.6 million of retroactive revenues and pretax operating income in connection with these contract modifications during the three and nine months ended September 30, 2014. In addition, approximately $6.0 million related to renewal and replacement funds was also recorded in "billings in excess of costs and estimated earnings on uncompleted contracts", which will be recognized in construction revenues (along with the related construction costs) when the work is performed. Unbilled receivables for ASUS represent completed construction revenues and operation and maintenance management fees earned but not yet billed, and also renewal and replacement fees due from the U.S. government but not yet billed.

Military Privatization:

The 50-year contracts with the U.S. government to operate, maintain and perform construction activities on the water and/or wastewater systems at various military bases are subject to periodic price redeterminations and modifications for changes in circumstances. ASUS has experienced delays in redetermining prices as required by the terms of these contracts. As a result, price redeterminations, when finally approved, can be retrospective and prospective.

In September 2014, the U.S. government approved price redeterminations related to the operations at Fort Bragg, Fort Jackson and Andrews Air Force Base. ASUS received contract modifications from the U.S. government for these price redeterminations, which included retroactive operation and maintenance management fees and retroactive renewal and replacement fees for prior periods. Revenues from operation and maintenance management fees are recognized when services are rendered. Accordingly, ASUS recorded approximately $2.6 million of retroactive revenues and pretax operating income in connection with these contract modifications during the three and nine months ended September 30, 2014. In addition, approximately $6.0 million related to renewal and replacement funds was also recorded in "billings in excess of costs and estimated earnings on uncompleted contracts", which will be recognized in construction revenues (along with the related construction costs) when the work is performed.

Unbilled receivables for ASUS represent completed construction revenues and operation and maintenance management fees earned but not yet billed, and also renewal and replacement fees due from the U.S. government but not yet billed.