XML 75 R49.htm IDEA: XBRL DOCUMENT v2.4.0.8
Business Combinations - Additional Information (Detail) (USD $)
 9 Months Ended 0 Months Ended 3 Months Ended 6 Months Ended 9 Months Ended 9 Months Ended
Jun. 30, 2014
Jun. 30, 2013
Sep. 30, 2013
Mar. 04, 2014
Griffith Energy Services, Inc.
Customer
Jun. 30, 2014
Griffith Energy Services, Inc.
Jun. 30, 2014
Griffith Energy Services, Inc.
Jun. 30, 2014
Griffith Energy Services, Inc.
Mar. 31, 2014
Griffith Energy Services, Inc.
Mar. 04, 2014
Griffith Energy Services, Inc.
Jun. 30, 2014
Griffith Energy Services, Inc.
Minimum
Jun. 30, 2014
Griffith Energy Services, Inc.
Maximum
Business Acquisition [Line Items]                      
Name of acquired entity           Griffith Energy Services, Inc.          
Percentage of voting equity interests acquired                 100.00%    
Total Cash paid to acquire business $ 97,950,000 $ 644,000   $ 98,700,000              
Cash paid to acquire business       69,900,000              
Working capital acquired, net of cash                 28,800,000    
Cash acquired 4,151,000 0   4,200,000              
Letters of credit issued 52,500,000   44,700,000           8,500,000    
Number of customers acquired from Griffith       50,000              
Total costs related to the acquisition         800,000   800,000        
Goodwill 209,102,000   201,130,000   8,000,000 8,000,000 8,000,000 7,972,000      
Customer lists, other intangibles and trade names amortization period                   10 years 20 years
Sales of acquired entity since acquisition date             86,900,000        
Net earnings of acquired entity since acquisition date             $ 400,000