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Other Long-Term Liabilities (Tables)
9 Months Ended
Dec. 31, 2017
Other Liabilities Disclosure [Abstract]  
Other Long-Term Liabilities
Other long-term liabilities consisted of the following: 
 
December 31,
2017
 
March 31,
2017
Deferred rent
$
82,459

 
$
63,854

Postretirement benefit obligations
127,193

 
123,492

Other (1)
40,389

 
40,593

Total other long-term liabilities
$
250,041

 
$
227,939