Commitments and Contingencies (Leases) (Details) (USD $) In Thousands, unless otherwise specified	Mar. 31, 2013
Operating Leases, Future Minimum Payments Due, Fiscal Year Maturity [Abstract]
2014	$ 23,949
2015	16,009
2016	10,054
2017	5,458
2018	2,825
Thereafter	5,417
Total minimum payments	63,712
Capital Leases, Future Minimum Payments Due, Fiscal Year Maturity [Abstract]
2014	844
2015	2,161
2016	40
2017	42
2018	29
Thereafter	0
Total minimum payments	3,116
Less—interest on capital leases	151
Total principal payable on capital leases (included in long-term debt)	$ 2,965