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Debt and Borrowings (Narrative) (Details)
3 Months Ended 3 Months Ended 3 Months Ended
Mar. 31, 2014
USD ($)
Jun. 30, 2013
USD ($)
Mar. 31, 2014
Revolving Credit Facility [Member]
USD ($)
Jun. 30, 2013
Revolving Credit Facility [Member]
USD ($)
Mar. 31, 2014
Revolving Credit Facility [Member]
Minimum [Member]
Mar. 31, 2014
Revolving Credit Facility [Member]
Maximum [Member]
Mar. 31, 2014
Foreign Line of Credit [Member]
USD ($)
Jun. 30, 2013
Foreign Line of Credit [Member]
USD ($)
Mar. 31, 2014
Eurocurrency Rate [Member]
Minimum [Member]
Mar. 31, 2014
Eurocurrency Rate [Member]
Maximum [Member]
Mar. 31, 2014
Base Rate [Member]
Minimum [Member]
Mar. 31, 2014
Base Rate [Member]
Maximum [Member]
Mar. 31, 2014
Tilda borrowing arrangement [Member]
USD ($)
Mar. 31, 2014
Tilda borrowing arrangement [Member]
GBP (£)
Jun. 30, 2013
Tilda borrowing arrangement [Member]
USD ($)
Debt Disclosure [Abstract]                              
Aggregate principal amount of senior notes $ 150,000,000                            
Senior notes term, in years 10                            
Senior notes maturity date May 02, 2016                            
Senior notes interest percentage 5.98%                            
Senior notes outstanding 150,000,000 150,000,000                          
Revolving credit facility expiration date Aug. 31, 2017                            
Interest coverage ratio 4.0                            
Leverage ratio 3.5                            
Consolidated leverage ratio 4.0                            
Line Of Credit Potential Incremental Borrowing Capacity Post-Amendment 150,000,000                            
Line of Credit Facility [Line Items]                              
Borrowings outstanding under credit agreement     596,778,000 503,384,000     0 11,779,000         49,005,000   0
Revolving credit facility     $ 850,000,000                     £ 37,000,000  
Debt Instrument, Basis Spread on Variable Rate                 0.875% 2.00% 0.00% 1.00%      
Line of Credit Facility, Unused Capacity, Commitment Fee Percentage         0.20% 0.35%