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Summary of Significant Accounting Policies (Details) - USD ($) $ in Thousands | 12 Months Ended |
--- | --- | ---
Mar. 31, 2017 | Mar. 31, 2016 | Mar. 31, 2015 | Apr. 01, 2017
Advertising Costs |  |  |  |
Advertising costs | $ 208,700 | $ 181,700 | $ 165,700 |
Inventories |  |  |  |
Inventory liability | 7,200 | 8,500 |  |
New Accounting Pronouncements and Changes in Accounting Principles [Abstract] |  |  |  |
Deferred tax assets | 66,407 | 63,431 |  |
Change in Accounting Estimate [Abstract] |  |  |  |
Net sales | 2,221,427 | $ 2,018,100 | $ 2,004,908 |
Change in Accounting Method Accounted for as Change in Estimate |  |  |  |
Change in Accounting Estimate [Abstract] |  |  |  |
Net sales | $ 14,400 |  |  |
Minimum |  |  |  |
Concentration of Credit Risk |  |  |  |
Customer payment term | 30 days |  |  |
Other Intangible Assets |  |  |  |
Estimated useful life | 1 year |  |  |
Maximum |  |  |  |
Concentration of Credit Risk |  |  |  |
Customer payment term | 60 days |  |  |
Other Intangible Assets |  |  |  |
Estimated useful life | 10 years |  |  |
Plant and buildings | Minimum |  |  |  |
Property, Plant and Equipment |  |  |  |
Estimated useful life | 10 years |  |  |
Plant and buildings | Maximum |  |  |  |
Property, Plant and Equipment |  |  |  |
Estimated useful life | 25 years |  |  |
Equipment | Minimum |  |  |  |
Property, Plant and Equipment |  |  |  |
Estimated useful life | 3 years |  |  |
Equipment | Maximum |  |  |  |
Property, Plant and Equipment |  |  |  |
Estimated useful life | 5 years |  |  |
Internal-use software development | Minimum |  |  |  |
Property, Plant and Equipment |  |  |  |
Estimated useful life | 3 years |  |  |
Internal-use software development | Maximum |  |  |  |
Property, Plant and Equipment |  |  |  |
Estimated useful life | 7 years |  |  |
Customer One | Customer Concentration | Consolidated net sales |  |  |  |
Concentration of Credit Risk |  |  |  |
Concentration credit risk by major customer (as a percent) | 15.00% | 14.00% | 15.00% |
Customer One | Credit concentration | Accounts receivable |  |  |  |
Concentration of Credit Risk |  |  |  |
Concentration credit risk by major customer (as a percent) | 18.00% | 15.00% |  |
Customer Two | Customer Concentration | Consolidated net sales |  |  |  |
Concentration of Credit Risk |  |  |  |
Concentration credit risk by major customer (as a percent) | 12.00% | 10.00% |  |
Customer Two | Credit concentration | Accounts receivable |  |  |  |
Concentration of Credit Risk |  |  |  |
Concentration credit risk by major customer (as a percent) | 12.00% |  |  |
Performance-based RSU | Minimum |  |  |  |
Share-based Compensation Expense |  |  |  |
Share based compensation expense recognition period | 1 year |  |  |
Performance-based RSU | Maximum |  |  |  |
Share-based Compensation Expense |  |  |  |
Share based compensation expense recognition period | 3 years |  |  |
Market Based RSUs | 2006 Plan |  |  |  |
Share-based Compensation Expense |  |  |  |
Vesting period | 3 years | 3 years | 3 years |
Accounting Standards Update 2016-09 | Subsequent Event | Minimum |  |  |  |
New Accounting Pronouncements and Changes in Accounting Principles [Abstract] |  |  |  |
Deferred tax assets |  |  |  | $ 75,000
Accounting Standards Update 2016-09 | Subsequent Event | Maximum |  |  |  |
New Accounting Pronouncements and Changes in Accounting Principles [Abstract] |  |  |  |
Deferred tax assets |  |  |  | 80,000
Retained earnings | Accounting Standards Update 2016-09 | Subsequent Event | Minimum |  |  |  |
New Accounting Pronouncements and Changes in Accounting Principles [Abstract] |  |  |  |
Cumulative effect of new accounting principle in period of adoption |  |  |  | 75,000
Retained earnings | Accounting Standards Update 2016-09 | Subsequent Event | Maximum |  |  |  |
New Accounting Pronouncements and Changes in Accounting Principles [Abstract] |  |  |  |
Cumulative effect of new accounting principle in period of adoption |  |  |  | $ 80,000
Operating Expense |  |  |  |
Advertising Costs |  |  |  |
Advertising costs | $ 32,200 | $ 23,600 | $ 24,000 |
Designated as hedging instruments: | Cash flow hedges | Foreign Exchange Forward |  |  |  |
Share-based Compensation Expense |  |  |  |
Derivative term of contract | 4 months |  |  |

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