Shareholders' Equity (Share Repurchases) (Details) - USD ($) shares in Thousands, $ in Millions	3 Months Ended
Mar. 31, 2017	May 01, 2014
Stockholders' Equity Note [Abstract]
Stock Repurchase Program, Authorized Amount		$ 500.0
Equity Compensation Plans Treasury Shares Reserved For Future Issuance	3,000

Number of common shares held in treasury reserved for future issuance related to equity compensation arrangements with individuals.

No definition available.

Name:	awh_EquityCompensationPlansTreasurySharesReservedForFutureIssuance
Namespace Prefix:	awh_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	duration