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COMMON STOCK AND TREASURY STOCK (Detail) - USD ($) | 3 Months Ended | 12 Months Ended |  |
--- | --- | --- | --- | ---
Mar. 31, 2017 | Jun. 30, 2016 | Jun. 30, 2016 | Aug. 03, 2016 | May 04, 2016
Equity, Class of Treasury Stock [Line Items] |  |  |  |  |
Common stock, shares authorized (in shares) | 500,000,000 | 500,000,000 | 500,000,000 |  |
Common stock, shares outstanding (in shares) | 80,313,029 | 81,667,129 | 81,667,129 |  |
Stock repurchase program one |  |  |  |  |
Equity, Class of Treasury Stock [Line Items] |  |  |  |  |
Total number of shares repurchased |  | 1,309,606 |  |  |
Average price paid per share (in usd per share) |  | $ 38.18 |  |  |
Value of total number of shares purchased |  | $ 50,000,000 |  |  |
Stock repurchase cost incurred but not yet paid |  |  | $ 6,500,000 |  |
Stock repurchase program one | Common Stock |  |  |  |  |
Equity, Class of Treasury Stock [Line Items] |  |  |  |  |
Repurchase of common stock |  |  |  |  | $ 50,000,000
Stock repurchase program two |  |  |  |  |
Equity, Class of Treasury Stock [Line Items] |  |  |  |  |
Total number of shares repurchased | 1,014,956 |  |  |  |
Average price paid per share (in usd per share) | $ 49.26 |  |  |  |
Value of total number of shares purchased | $ 50,000,000 |  |  |  |
Stock repurchase program two | Common Stock |  |  |  |  |
Equity, Class of Treasury Stock [Line Items] |  |  |  |  |
Repurchase of common stock |  |  |  | $ 50,000,000 |
Stock repurchase program three |  |  |  |  |
Equity, Class of Treasury Stock [Line Items] |  |  |  |  |
Total number of shares repurchased | 917,455 |  |  |  |
Average price paid per share (in usd per share) | $ 50.43 |  |  |  |
Value of total number of shares purchased | $ 46,300,000 |  |  |  |
Stock repurchase cost incurred but not yet paid | 3,000,000 |  |  |  |
Stock Repurchase Program, Remaining Authorized Repurchase Amount | $ 3,700,000 |  |  |  |
Stock repurchase program three | Common Stock |  |  |  |  |
Equity, Class of Treasury Stock [Line Items] |  |  |  |  |
Repurchase of common stock |  |  |  | $ 50,000,000 |

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