Prior Year Misstatement Correction in the Current Year (Details) - USD ($)
$ / shares in Units, $ in Thousands |
3 Months Ended |
6 Months Ended |
Jan. 31, 2016 |
Jan. 31, 2015 |
Jan. 31, 2016 |
Jan. 31, 2015 |
| Error Corrections and Prior Period Adjustments Restatement [Line Items] |
|
|
|
|
| Net sales |
$ 517,200
|
$ 588,500
|
$ 1,055,200
|
$ 1,185,000
|
| Cost of sales |
346,400
|
385,400
|
706,300
|
772,800
|
| Gross profit |
170,800
|
203,100
|
348,900
|
412,200
|
| Operating income |
53,700
|
65,800
|
109,200
|
142,800
|
| Earnings before income taxes |
49,400
|
65,400
|
102,800
|
142,700
|
| Income taxes |
11,400
|
17,400
|
26,300
|
38,800
|
| Net earnings |
$ 38,000
|
$ 48,000
|
$ 76,500
|
$ 103,900
|
| Basic earnings per share (in usd per share) |
$ 0.28
|
$ 0.35
|
$ 0.57
|
$ 0.75
|
| Diluted earnings per share (in usd per share) |
$ 0.28
|
$ 0.34
|
$ 0.57
|
$ 0.74
|
| Comprehensive income |
$ 2,800
|
$ 1,800
|
$ 29,100
|
$ 20,800
|
| Accelerated Revenue Recognition |
|
|
|
|
| Error Corrections and Prior Period Adjustments Restatement [Line Items] |
|
|
|
|
| Net sales |
|
588,500
|
|
1,185,000
|
| Cost of sales |
|
385,400
|
|
772,800
|
| Gross profit |
|
203,100
|
|
412,200
|
| Operating income |
|
65,800
|
|
142,800
|
| Earnings before income taxes |
|
65,400
|
|
142,700
|
| Income taxes |
|
17,400
|
|
38,800
|
| Net earnings |
|
$ 48,000
|
|
$ 103,900
|
| Basic earnings per share (in usd per share) |
|
$ 0.35
|
|
$ 0.75
|
| Diluted earnings per share (in usd per share) |
|
$ 0.34
|
|
$ 0.74
|
| Comprehensive income |
|
$ 1,800
|
|
$ 20,800
|
| Accelerated Revenue Recognition | Scenario, Previously Reported |
|
|
|
|
| Error Corrections and Prior Period Adjustments Restatement [Line Items] |
|
|
|
|
| Net sales |
|
596,900
|
|
1,193,400
|
| Cost of sales |
|
391,400
|
|
778,800
|
| Gross profit |
|
205,500
|
|
414,600
|
| Operating income |
|
68,200
|
|
145,200
|
| Earnings before income taxes |
|
67,800
|
|
145,100
|
| Income taxes |
|
18,200
|
|
39,600
|
| Net earnings |
|
$ 49,600
|
|
$ 105,500
|
| Basic earnings per share (in usd per share) |
|
$ 0.36
|
|
$ 0.76
|
| Diluted earnings per share (in usd per share) |
|
$ 0.35
|
|
$ 0.75
|
| Comprehensive income |
|
$ 3,400
|
|
$ 22,400
|
| Accelerated Revenue Recognition | Restatement Adjustment |
|
|
|
|
| Error Corrections and Prior Period Adjustments Restatement [Line Items] |
|
|
|
|
| Net sales |
|
(8,400)
|
|
(8,400)
|
| Cost of sales |
|
(6,000)
|
|
(6,000)
|
| Gross profit |
|
(2,400)
|
|
(2,400)
|
| Operating income |
|
(2,400)
|
|
(2,400)
|
| Earnings before income taxes |
|
(2,400)
|
|
(2,400)
|
| Income taxes |
|
(800)
|
|
(800)
|
| Net earnings |
|
$ (1,600)
|
|
$ (1,600)
|
| Basic earnings per share (in usd per share) |
|
$ (0.01)
|
|
$ (0.01)
|
| Diluted earnings per share (in usd per share) |
|
$ (0.01)
|
|
$ (0.01)
|
| Comprehensive income |
|
$ (1,600)
|
|
$ (1,600)
|