Acquisitions and Purchase Accounting Estimated Fair Values of Assets Acquired and Liabilities Assumed for Stewart Acquisition (Details) (Details) (as initially reported, USD $) In Thousands, unless otherwise specified	Sep. 05, 2012
Business Acquisition [Line Items]
Business Acquisition, Purchase Price Allocation, Other Noncurrent Liabilities	$ 4,000
Consideration paid at closing	28,000
Contingent consideration	4,000
Business Acquisition, Purchase Price Allocation, Assets Acquired (Liabilities Assumed), Net	32,000
Stewart [Member]
Business Acquisition [Line Items]
Current assets	11,839
Property, plant and equipment	653
Goodwill	17,886
Other intangibles	6,850
Business Acquisition, Purchase Price Allocation, Current Liabilities	5,228
Contingent consideration	$ 4,000