Revised Allocation of Goodwill (Detail) (USD $) In Thousands, unless otherwise specified					9 Months Ended
	Sep. 30, 2012	Jan. 01, 2012	Sep. 30, 2012 After Reorganization Healthcare	Jan. 01, 2012 After Reorganization Healthcare	Sep. 30, 2012 After Reorganization Business Solutions	Sep. 30, 2012 Before Reorganization Financial Services	Sep. 30, 2012 Before Reorganization Commercial Markets	Sep. 30, 2012 Before Reorganization Industrial
Goodwill [Line Items]
Goodwill, beginning balance	$ 7,456	$ 7,456	$ 3,284	$ 3,284		$ 1,743	$ 1,296	$ 1,133
Reallocation of goodwill					4,172	(1,743)	(1,296)	(1,133)
Goodwill, ending balance	$ 7,456	$ 7,456	$ 3,284	$ 3,284	$ 4,172