Supplemental Financial Information (Details) - USD ($) $ in Thousands |
12 Months Ended | ||
|---|---|---|---|
Mar. 31, 2016 |
Mar. 31, 2015 |
Mar. 31, 2014 |
|
| Supplemental Cash Flow Information [Abstract] | |||
| Cash paid for income taxes | $ 25,400 | $ 25,500 | $ 25,700 |
| Cash paid for interest on borrowings | 52,900 | 40,200 | 34,600 |
| Allowance for Doubtful Accounts [Member] | |||
| Movement in Valuation Allowances and Reserves [Roll Forward] | |||
| Balances at Beginning of Year | 2,621 | 2,918 | 2,764 |
| Charged to Cost and Expense | 59 | 104 | 245 |
| Deductions | (140) | (401) | (91) |
| Balance at End of Year | 2,540 | 2,621 | 2,918 |
| Valuation Allowance of Deferred Tax Assets [Member] | |||
| Movement in Valuation Allowances and Reserves [Roll Forward] | |||
| Balances at Beginning of Year | 116,482 | 93,811 | 88,637 |
| Charged to Cost and Expense | 5,535 | 0 | 0 |
| Charged to Other Accounts | 47,834 | 36,957 | 5,174 |
| Deductions | (8,017) | (14,286) | 0 |
| Balance at End of Year | $ 161,834 | $ 116,482 | $ 93,811 |