Fair Value Measurements (Carrying Amounts and Estimated Fair Values of Financial Instruments Not Measured at Fair Value) (Detail) - USD ($)
$ in Thousands |
Jun. 30, 2016 |
Dec. 31, 2015 |
| Carrying Amount |
|
|
| Assets: |
|
|
| Cash and cash equivalents |
$ 1,241,814
|
$ 1,027,321
|
| Deposits with banks |
21,746
|
23,224
|
| Notes receivable, net |
7,159
|
5,866
|
| Liabilities: |
|
|
| Deposits |
3,100,365
|
2,699,015
|
| Notes and contracts payable |
579,474
|
581,052
|
| Estimated Fair Value |
|
|
| Assets: |
|
|
| Cash and cash equivalents |
1,241,814
|
1,027,321
|
| Deposits with banks |
21,733
|
23,211
|
| Notes receivable, net |
6,897
|
5,791
|
| Liabilities: |
|
|
| Deposits |
3,100,365
|
2,699,015
|
| Notes and contracts payable |
607,757
|
590,970
|
| Estimated Fair Value | Level 1 |
|
|
| Assets: |
|
|
| Cash and cash equivalents |
1,241,814
|
1,027,321
|
| Deposits with banks |
721
|
1,103
|
| Liabilities: |
|
|
| Deposits |
3,100,365
|
2,699,015
|
| Estimated Fair Value | Level 2 |
|
|
| Assets: |
|
|
| Deposits with banks |
21,012
|
22,108
|
| Liabilities: |
|
|
| Notes and contracts payable |
601,049
|
583,893
|
| Estimated Fair Value | Level 3 |
|
|
| Assets: |
|
|
| Notes receivable, net |
6,897
|
5,791
|
| Liabilities: |
|
|
| Notes and contracts payable |
$ 6,708
|
$ 7,077
|