| **Restructuring (Details) (USD $)**                     | 3 Months Ended | 6 Months Ended | 12 Months Ended |
|---------------------------------------------------------|----------------|----------------|-----------------|
||
| **Restructuring [Abstract]**                            |           |           |            |   |   |   |   |
| Restructuring accrual of severance and related benefits |           | $ 1,500,000    | $ 1,900,000     | $ 1,300,000 |   |   |   |
| Lease termination payments                              | 1,359,000      |           |            |   |   |   |   |
| **Activity in restructuring accrual [Roll Forward]**    |           |           |            |   |   |   |   |
| Balance at beginning of period                          |           | 813,000        |            |   | 813,000 | 731,000 | 0 |
| Additions, net                                          |           |           |            |   | 2,866,000 | 2,092,000 | 1,641,000 |
| Payments                                                |           |           |            |   | (3,679,000) | (2,010,000) | (910,000) |
| Balance at end of period                                |           |           |            | 731,000 | 0 | 813,000 | 731,000 |
| Severance and Related Benefits [Member]                 |           |           |            |   |   |   |   |
| **Activity in restructuring accrual [Roll Forward]**    |           |           |            |   |   |   |   |
| Balance at beginning of period                          |           | 813,000        |            |   | 813,000 | 571,000 | 0 |
| Additions, net                                          |           |           |            |   | 1,492,000 | 1,905,000 | 1,341,000 |
| Payments                                                |           |           |            |   | (2,305,000) | (1,663,000) | (770,000) |
| Balance at end of period                                |           |           |            | 571,000 | 0 | 813,000 | 571,000 |
| Other Exit Costs [Member]                               |           |           |            |   |   |   |   |
| **Activity in restructuring accrual [Roll Forward]**    |           |           |            |   |   |   |   |
| Balance at beginning of period                          |           | 0              |            |   | 0 | 6,000 | 0 |
| Additions, net                                          |           |           |            |   | 15,000 | 184,000 | 8,000 |
| Payments                                                |           |           |            |   | (15,000) | (190,000) | (2,000) |
| Balance at end of period                                |           |           |            | 6,000 | 0 | 0 | 6,000 |
| Contract Termination Costs [Member]                     |           |           |            |   |   |   |   |
| **Activity in restructuring accrual [Roll Forward]**    |           |           |            |   |   |   |   |
| Balance at beginning of period                          |           | 0              |            |   | 0 | 154,000 | 0 |
| Additions, net                                          |           |           |            |   | 1,359,000 | 3,000 | 292,000 |
| Payments                                                |           |           |            |   | (1,359,000) | (157,000) | (138,000) |
| Balance at end of period                                |           |           |            | $ 154,000 | $ 0 | $ 0 | $ 154,000 |

| X                                                                                                                                                                                                                                                               |
|-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Definition
Lease termination payment - Molecular subsidiary
+ References
No definition available.
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| - Definition
Amount of cash payments made as the result of exit or disposal activities. Excludes payments associated with a discontinued operation or an asset retirement obligation.
+ References
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|-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Definition
Amount of expenses associated with exit or disposal activities pursuant to an authorized plan. Excludes expenses related to a discontinued operation or an asset retirement obligation.
+ References
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|-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Definition
Carrying amount (including both current and noncurrent portions of the accrual) as of the balance sheet date pertaining to a specified type of cost associated with exit from or disposal of business activities or restructuring pursuant to a duly authorized plan.
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|---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Definition
Amount of expenses for special or contractual termination benefits provided to current employees involuntarily terminated under a benefit arrangement associated exit or disposal activities pursuant to an authorized plan. Excludes expenses related to one-time termination benefits, a discontinued operation or an asset retirement obligation.
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