Cash and Cash Equivalents, Continuing Operations (Detail) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2012	Dec. 31, 2011
Unrestricted cash and cash equivalents:
Noninterest-bearing deposits	$ 17,332	$ 21,116
Short-term money market funds	33,373	25,859
Loan servicing trust accounts	189	949
Total unrestricted cash and cash equivalents	50,894	47,924
Restricted cash and cash equivalents:
Noninterest-bearing deposits - securing a letter of credit	784	911
Noninterest-bearing deposits - legal settlement reserve funds	2,021	3,521
Total restricted cash and cash equivalents	2,805	4,432
Total cash and cash equivalents	$ 53,699	$ 52,356