Income taxes (Tables)
|
12 Months Ended |
Sep. 30, 2012
|
Income taxes |
|
Components of income from continuing operations before income taxes |
|
|
Year ended September 30,
|
|
|
|
2012
|
|
2011
|
|
2010
|
|
Income from continuing operations before income taxes:
|
|
|
|
|
|
|
|
United States
|
|
$
|
93,418
|
|
$
|
66,842
|
|
$
|
66,162
|
|
Foreign
|
|
38,333
|
|
59,054
|
|
42,160
|
|
Income from continuing operations before income taxes
|
|
$
|
131,751
|
|
$
|
125,896
|
|
$
|
108,322
|
|
|
|
Year ended September 30,
|
|
|
|
2012
|
|
2011
|
|
2010
|
|
Current provision:
|
|
|
|
|
|
|
|
Federal
|
|
$
|
36,348
|
|
$
|
20,090
|
|
$
|
23,712
|
|
State and local
|
|
9,006
|
|
4,484
|
|
5,197
|
|
Foreign
|
|
13,572
|
|
17,422
|
|
13,188
|
|
Total current provision
|
|
58,926
|
|
41,996
|
|
42,097
|
|
Deferred tax expense (benefit):
|
|
|
|
|
|
|
|
Federal
|
|
$
|
(1,272
|
)
|
$
|
1,572
|
|
$
|
(1,678
|
)
|
State and local
|
|
(471
|
)
|
397
|
|
(278
|
)
|
Foreign
|
|
(1,531
|
)
|
(211
|
)
|
(1,216
|
)
|
Total deferred tax expense (benefit)
|
|
(3,274
|
)
|
1,758
|
|
(3,172
|
)
|
Income tax expense
|
|
$
|
55,652
|
|
$
|
43,754
|
|
$
|
38,925
|
|
|
|
|
Provision for income taxes |
|
|
Year ended September 30,
|
|
|
|
2012
|
|
2011
|
|
2010
|
|
Federal income tax provision at statutory rate of 35%
|
|
$
|
46,113
|
|
$
|
44,063
|
|
$
|
37,913
|
|
State income taxes, net of Federal benefit
|
|
5,558
|
|
3,175
|
|
3,153
|
|
True up to prior year
|
|
2,715
|
|
—
|
|
—
|
|
Permanent items
|
|
2,808
|
|
314
|
|
1,263
|
|
Foreign taxation
|
|
(1,950
|
)
|
(3,644
|
)
|
(2,177
|
)
|
Valuation allowances on net operating loss carryforwards
|
|
305
|
|
(16
|
)
|
(33
|
)
|
Other
|
|
103
|
|
(138
|
)
|
(1,194
|
)
|
Income tax expense
|
|
$
|
55,652
|
|
$
|
43,754
|
|
$
|
38,925
|
|
|
|
|
|
Significant items comprising the Company's deferred tax assets and liabilities |
|
|
As of September 30,
|
|
|
|
2012
|
|
2011
|
|
Deferred tax assets—current:
|
|
|
|
|
|
Deferred revenue
|
|
$
|
14,543
|
|
$
|
12,675
|
|
Costs deductible in future periods
|
|
11,126
|
|
9,315
|
|
Net operating loss carryforwards
|
|
811
|
|
—
|
|
Total deferred tax assets—current
|
|
26,480
|
|
21,990
|
|
Deferred tax liabilities—current:
|
|
|
|
|
|
Accounts receivable—unbilled
|
|
3,932
|
|
2,734
|
|
Other
|
|
341
|
|
—
|
|
Total deferred tax liabilities—current:
|
|
4,273
|
|
2,734
|
|
Net deferred tax asset—current
|
|
$
|
22,207
|
|
$
|
19,256
|
|
Deferred tax assets—non-current:
|
|
|
|
|
|
Net operating loss carryforwards
|
|
$
|
5,728
|
|
$
|
1,028
|
|
Valuation allowance on net operating loss carryforwards
|
|
(1,313
|
)
|
(1,028
|
)
|
Net operating loss carryforwards net of valuation reserve
|
|
4,415
|
|
—
|
|
Deferred revenue
|
|
6,737
|
|
—
|
|
Non-cash equity compensation
|
|
4,176
|
|
4,012
|
|
Cash deductible in future periods
|
|
1,021
|
|
2,567
|
|
Deferred contract costs
|
|
—
|
|
101
|
|
Other
|
|
3,055
|
|
1,167
|
|
Total deferred tax assets—non-current
|
|
19,404
|
|
7,847
|
|
Deferred tax liabilities—non-current
|
|
|
|
|
|
Amortization of goodwill and intangible assets
|
|
14,218
|
|
3,976
|
|
Property and equipment
|
|
8,535
|
|
10,767
|
|
Capitalized software
|
|
4,701
|
|
4,237
|
|
Deferred contract costs
|
|
452
|
|
—
|
|
Other
|
|
513
|
|
80
|
|
Total deferred tax liability—non-current
|
|
$
|
28,419
|
|
$
|
19,060
|
|
Net deferred tax liability—non-current
|
|
$
|
9,015
|
|
$
|
11,213
|
|
|
|
|
Components of noncurrent deferred tax assets (liabilities) |
|
|
As of September 30,
|
|
|
|
2012
|
|
2011
|
|
Long-term assets
|
|
$
|
1,369
|
|
$
|
732
|
|
Long-term liabilities
|
|
10,384
|
|
11,945
|
|
Net deferred tax liability—non-current
|
|
$
|
9,015
|
|
$
|
11,213
|
|
|
|
|
Schedule of reconciliation of the beginning and ending amount of gross unrecognized tax benefits |
|
|
Year Ended
September 30
|
|
|
|
2012
|
|
2011
|
|
2010
|
|
Balance at beginning of year
|
|
$
|
1,172
|
|
$
|
1,553
|
|
$
|
2,045
|
|
Additions based on tax positions related to the current year
|
|
—
|
|
—
|
|
45
|
|
Reductions for tax positions of prior years
|
|
—
|
|
—
|
|
(196
|
)
|
Lapse of statute of limitations
|
|
(113
|
)
|
(381
|
)
|
—
|
|
Settlements
|
|
—
|
|
—
|
|
(341
|
)
|
Balance at end of year
|
|
$
|
1,059
|
|
$
|
1,172
|
|
$
|
1,553
|
|
|
|
|