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Lease Commitments - Schedule of Future Minimum Cash Commitments Under Operating Leases (Detail) (USD $)
In Thousands, unless otherwise specified
Dec. 31, 2013
Operating Leases Future Minimum Payments Due [Abstract]  
Gross Operating Lease Commitments, 2014 $ 31,939
Gross Operating Lease Commitments, 2015 29,956
Gross Operating Lease Commitments, 2016 28,144
Gross Operating Lease Commitments, 2017 22,399
Gross Operating Lease Commitments, 2018 17,543
Gross Operating Lease Commitments, Thereafter 27,172
Gross Operating Lease Commitments, Total 157,153
Sub-Leases, 2014 1,562
Sub-Leases, 2015 1,279
Sub-Leases, 2016 1,103
Sub-Leases, 2017 404
Sub-Leases, 2018 235
Sub-Leases, Thereafter   
Sub-Leases, Total 4,583
Net Operating Lease Commitments, 2014 30,377
Net Operating Lease Commitments, 2015 28,677
Net Operating Lease Commitments, 2016 27,041
Net Operating Lease Commitments, 2017 21,995
Net Operating Lease Commitments, 2018 17,308
Net Operating Lease Commitments , Thereafter 27,172
Net Operating Lease Commitments, Total $ 152,570