Stockholders' Equity (Tables)
 3 Months Ended
Jun. 30, 2018
Stockholders' Equity Note [Abstract]  
Share Repurchases
The following table summarizes the stock repurchase activity under these programs:
 
Three Months Ended June 30, 2018
Approximate dollar value of shares purchased
$
10,000

Total number of shares purchased*
85,792

Average price paid per share
$
116.56


*All shares were repurchased as part of publicly-announced programs in open-market transactions.
Retained Earnings
The following is a reconciliation of the change in the Company's retained earnings as of June 30, 2018:    
Balance as of March 31, 2018
$
785,871

Net loss
(30,407
)
Repurchase of common stock*
(9,999
)
Impact from adoption of ASUs, net of tax
720

Balance as of June 30, 2018
$
746,185