Segment Information (Total Assets By Segment) (Details) (USD $) In Thousands, unless otherwise specified	Jun. 30, 2014	Dec. 31, 2013
Segment Reporting, Asset Reconciling Item [Line Items]
Total assets	$ 934,334	$ 904,197
Disputes, Investigations & Economics [Member]
Segment Reporting, Asset Reconciling Item [Line Items]
Total assets	342,628	443,417
Financial, Risk & Compliance [Member]
Segment Reporting, Asset Reconciling Item [Line Items]
Total assets	94,750	89,498
Healthcare [Member]
Segment Reporting, Asset Reconciling Item [Line Items]
Total assets	285,236	173,066
Energy [Member]
Segment Reporting, Asset Reconciling Item [Line Items]
Total assets	99,464	101,851
Unallocated Assets [Member]
Segment Reporting, Asset Reconciling Item [Line Items]
Total assets	$ 112,256	$ 96,365