Significant Accounting Policies (Details) - USD ($)	12 Months Ended
	Mar. 31, 2018	Mar. 31, 2017	Mar. 31, 2016	Jun. 28, 2014
Accounting Policies [Line Items]
Property, plant and equipment impairment	$ 0
Common stock, par value	$ 0.001	$ 0.001	$ 0.001	$ 0.001
Advertising expense	$ 5,592,000	$ 5,591,000	$ 5,353,000
Defined benefit plan, assets	38,015,000	33,928,000	32,385,000
Recurring
Accounting Policies [Line Items]
Defined benefit plan, assets	38,015,000
Recurring | Level 1
Accounting Policies [Line Items]
Defined benefit plan, assets	26,707,000
Recurring | Fair Value, Inputs, Level 2 [Member]
Accounting Policies [Line Items]
Defined benefit plan, assets	$ 11,308,000
Minimum
Accounting Policies [Line Items]
Catalogs and other direct marketing pieces, useful life	1 year
Maximum
Accounting Policies [Line Items]
Catalogs and other direct marketing pieces, useful life	2 years
Building and improvements | Minimum
Accounting Policies [Line Items]
Property, plant and equipment, useful life	30 years
Building and improvements | Maximum
Accounting Policies [Line Items]
Property, plant and equipment, useful life	40 years
Equipment | Minimum
Accounting Policies [Line Items]
Property, plant and equipment, useful life	3 years
Equipment | Maximum
Accounting Policies [Line Items]
Property, plant and equipment, useful life	5 years
Customer relationships | Minimum
Accounting Policies [Line Items]
Finite-lived intangible asset, useful life	4 years
Customer relationships | Maximum
Accounting Policies [Line Items]
Finite-lived intangible asset, useful life	20 years
Provision for Doubtful Accounts
Accounting Policies [Line Items]
Provisions for doubtful accounts expense	$ 1,436,000	1,375,000	3,819,000
North America Services
Accounting Policies [Line Items]
Accounts receivable write downs	$ 0	$ 336,000	$ 2,379,000