Fair Value Measurements - Financial and Nonfinancial Assets and Liabilities Measured at Fair Value on a Nonrecurring Basis (Details) (Fair Value, Measurements, Nonrecurring [Member], USD $) In Thousands, unless otherwise specified	Mar. 31, 2013	Mar. 31, 2012
Recorded Value [Member]
Assets:
Goodwill	$ 14,128	$ 15,198
Intangible assets	17,288	14,135
Liabilities:
SERP obligations — current		3,323
Restructuring liabilities — current	584	5,447
Other employee benefit plans obligations — non-current	196	196
Restructuring liabilities — non-current		852
Active markets for identical assets or liabilities (Level 1) [Member]
Assets:
Goodwill	0	0
Intangible assets	0	0
Liabilities:
SERP obligations — current		0
Restructuring liabilities — current	0	0
Other employee benefit plans obligations — non-current	0	0
Restructuring liabilities — non-current		0
Quoted prices in similar instruments and observable inputs (Level 2) [Member]
Assets:
Goodwill	0	0
Intangible assets	0	0
Liabilities:
SERP obligations — current		0
Restructuring liabilities — current	0	0
Other employee benefit plans obligations — non-current	0	0
Restructuring liabilities — non-current		0
Active markets for unobservable inputs (Level 3) [Member]
Assets:
Goodwill	14,128	15,198
Intangible assets	17,288	14,135
Liabilities:
SERP obligations — current		3,323
Restructuring liabilities — current	584	5,447
Other employee benefit plans obligations — non-current	196	196
Restructuring liabilities — non-current		$ 852