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Business Combinations (Narrative Disclosures) (Details) (USD $)
 9 Months Ended 0 Months Ended
Sep. 30, 2014
May 22, 2014
Nov. 01, 2014
Subsequent event
Nov. 01, 2014
Subsequent event
Nov. 01, 2014
Business Acquisition, Acquiree, Aslin Group
Subsequent event
Business Combinations [Abstract]          
Business Combinations, Merger consideration to be paid to target in cash and stock   $ 30,100,000      
Business Combinations, Non-recurring merger related transaction costs $ 424,000        
Subsequent Event [Line Items]          
Business Combinations, Total consideration per share received by acquiree         $ 14,435.59
Business Combinations, Cash consideration per share received by acquiree         $ 6,496.02
Business Combinations, Stock consideration per share received by acquiree         $ 7,939.57
Business Combinations, Volume-weighted average stock price       $ 45.9825  
Business Combinations, Equity interest issued or issuable, number of shares     360,081